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How to Measure Power Supply Rejection Ratio (PSRR)
 
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A discussion about the methods used to measure the Power Supply Ripple Rejection (PSRR) of a linear regulator.
Views: 13849 Texas Instruments
EEVblog #594 - How To Measure Power Supply Ripple & Noise
 
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Fundamentals Friday Dave explains what the ripple and noise specifications on a power supply is and how to measure it using different methods on both analog and digital oscilloscopes. From bad techniques through to good, showing the effect of each one. Traps for young players aplenty in this one. How do you detect common mode noise issues and ensure that the signal you are measuring is really coming from your device under test? Single ended & differential measurement, DIY coax solutions, termination, analog vs digital oscilloscopes, bandwidth limiting, and even oscilloscope probe coax construction issues. It's all here. Mysteries of X1 oscilloscope probes revealed: http://www.youtube.com/watch?v=OiAmER1OJh4 How to track down common mode noise: http://www.youtube.com/watch?v=BFLZm4LbzQU Opamp Noise voltage tutorial: https://www.youtube.com/watch?v=Y0jkPLuFdnM Forum: http://www.eevblog.com/forum/blog/eevblog-594-how-to-measure-power-supply-ripple-noise/ EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/
Views: 170184 EEVblog
Power supply ripple and how to measure it
 
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Power supply ripple and how to measure it. http://www.natureandtech.com
Views: 23977 NatureAndTech
LDO as Ripple Suppressor
 
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If your application requires a supply voltage that is free of ripple and noise, you may want to use an LDO as voltage regulator. But how well can an LDO remove ripple and noise from an input supply rail? This is related to the LDO Power Supply Ripple Rejection (PSRR). Find out about PSRR vs. frequency and practical design tips for using a LDO as a ripple and noise filter in our tutorial video.
Making Output Ripple Measurements on a DC output
 
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Learn more about performing and output ripple measurement on the DC output of a power supply using a Keysight InfiniiVision X-Series oscilloscope. Click to subscibe! ► http://bit.ly/Scopes_Sub Visit www.keysight.com/find/scopes-power
Views: 16278 Keysight Labs
Power Supply Rejection Ratio (PSRR) Measurements using an Oscilloscope
 
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Learn how to perform Power Supply Rejection Ratio measurements using an oscilloscope to test your power supply's ability to reject various components of frequency on the input of DC-to-DC converters. Learn more! ► http://www.keysight.com/find/scopes-power Click to subscribe! ► http://bit.ly/Scopes_Sub The mixed signal oscilloscope we used: https://keysight.com/find/3000T Learn more about using oscilloscopes: http://oscilloscopelearningcenter.com Check out our blog: http://keysightoscilloscopeblog.com Like our Facebook page: https://www.facebook.com/keysightbench/ Download free 30-day trials of Keysight's design & test software at http://www.keysight.com/find/free_trials
Views: 2362 Keysight Labs
Ultralow Noise and Ultrahigh PSRR
 
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Amit Patel - Senior Design Engineer, Power Products When it comes to powering noise-sensitive analog/RF applications, low dropout (LDO) linear regulators are generally preferred over their switching counterparts. Low noise LDOs power a wide range of analog/RF designs, including frequency synthesizers (PLLs/VCOs), RF mixers and modulators, high speed and high resolution data converters (ADCs and DACs) and precision sensors. Nevertheless, these applications have reached capabilities and sensitivities that are testing the limits of conventional low noise LDOs. For instance, in many high end VCOs, power supply noise directly affects the VCO output phase noise (jitter). Moreover, to meet overall system efficiency requirements, the LDO usually post-regulates the output of a relatively noisy switching converter, so the high frequency power supply rejection ratio (PSRR) performance of the LDO becomes paramount. With its ultralow output noise and ultrahigh PSRR performance, the (http://www.linear.com/product/LT3042) LT3042 can directly power some of most noise-sensitive applications while post-regulating the output of a switching converter, without requiring bulky filtering.
Views: 2592 LinearTechnology
Power Supply Control Loop Response Measurements using an Oscilloscope
 
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Learn how to perform control loop response measurements (Bode gain and phase plots) to test the stability of closed-loop feedback networks of switch mode power supplies. Learn more! ► http://www.keysight.com/find/scopes-power Click to subscribe! ► http://bit.ly/Scopes_Sub The mixed signal oscilloscope we used: https://keysight.com/find/3000T Learn more about using oscilloscopes: http://oscilloscopelearningcenter.com Check out our blog: http://keysightoscilloscopeblog.com Like our Facebook page: https://www.facebook.com/keysightbench/ Download free 30-day trials of Keysight's design & test software at http://www.keysight.com/find/free_trials
Views: 4251 Keysight Labs
Power Supply, Ripple & Load Transient Terms and Correct Way to Measure Ripple
 
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As supply voltages get near 1.0V, then +3% becomes a very narrow +30mV range to hit. This video discusses how power supply Ripple and Load Transient play into the tight requirements of Vcore on FPGAs and other large chips. A discussion on the appropriate way to measure ripple is also given. Follow Intel FPGA to see how we’re programmed for success and can help you tackle your FPGA problems with comprehensive solutions. Facebook: https://www.facebook.com/IntelFPGA Twitter: https://twitter.com/intelfpga LinkedIn: https://www.linkedin.com/company/intelfpga
Views: 815 Intel FPGA
Low Drop-out Regulator
 
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Toshiba's LDO achieves industry's best-in-1 class ripple rejection ratio and load transient response. This helps to minimize output voltage fluctuations.
Minimizing Switching Regulator Residue in Linear Regulator Outputs
 
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with Jim Williams http://video.linear.com/75?utm_source=minswreg&utm_medium=video&utm_campaign=youtube Linear regulators are commonly employed to post-regulate switching regulator outputs. Benefits include improved stability, accuracy, transient response and lowered output impedance. Ideally, these performance gains would be accompanied by markedly reduced switching regulator generated ripple and spikes. In practice, all linear regulators encounter some difficulty with ripple and spikes, particularly as frequency rises. This video, excerpted from LTC Application Note 101 (http://cds.linear.com/docs/en/application-note/an101f.pdf), explains the causes of linear regulators' dynamic limitations and presents board level techniques for measuring and improving ripple and spike rejection.
Views: 16417 LinearTechnology
EEVblog #441 - How To Track Down Common Mode Noise
 
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How to detect and hunt down common mode noise on your oscilloscope. With the example of testing the output noise on a linear bench power supply. The aside video for Analog vs Digital Scopes: http://www.youtube.com/watch?v=ImyUB3_n9fw EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/
Views: 113529 EEVblog
Power Tips: Measuring Vout Ripple in DC/DC Converters
 
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The video explains the measurement set-up for the output voltage ripple in DC/DC converters directly at the load with a high frequency bypass capacitor.
Views: 2331 Texas Instruments
LDO Dropout Voltage Explained
 
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LDOs are Low Drop-Out Linear regulators. But what exactly does Low Dropout mean? How well does an LDO regulate the output voltage when the input voltage is very close to the output voltage? Our tutorial video will explain the LDO dropout operation and dropout curves, and gives a practical measurement example of the RT9187 LDO close to dropout operation.
Measuring the Output Noise of a DC Power Supply
 
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Measuring the Output Noise of a DC Power Supply http://www.keysight.com/find/n6700 Learn how output noise is measured on a DC power supply. Output noise is specified between 20 Hz and 20 MHz. A differential amplifier is used to reject common noise noise leaving just the normal mode noise from the power supply. A wide band AC multimeter is used to measure the rms voltage between 20 Hz and 20 MHz. An oscilloscope can be used to measure the peak to peak noise.
Half Wave Rectifier (Ripple Factor)
 
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Analog Electronics: Half Wave Rectifier (Ripple Factor) Topics Covered: 1. Definition of ripple factor. 2. Ripple factor derivation. 3. Ripple factor of half wave rectifier. Contribute: http://www.nesoacademy.org/donate Website ► http://www.nesoacademy.org/ Facebook ► https://goo.gl/Nt0PmB Twitter ► https://twitter.com/nesoacademy Pinterest ► http://www.pinterest.com/nesoacademy/
Views: 81127 Neso Academy
FRA How to - Power Supply Rejection Ratio
 
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Use the Cleverscope Frequency Response Analyser to measure the Power Supply Rejection Ratio (PSRR) of a power supply with the CS1070 Power Amplifier. It can manage up to 1A output current over a voltage range of -18V to +30V over a frequency range of DC - 52 MHz. This is sufficient to directly measure many power supplies. If this is not enough, you can inject across a low value series resistor (eg 0.1 ohm). This video shows you how to connect up a CS328A-FRA and CS1070 to measure the PSRR of an LTC3589 over the frequency range 200 Hz - 10 MHz.
Views: 561 Cleverscope
Engineer It - How to test power supplies - Measuring Noise
 
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TI's Bob Hanrahan demonstrates how to measure noise when testing power supplies. For more videos on testing power supplies, check out: Overview: www.ti.com/testingpoweroverview Measuring efficiency: www.ti.com/measuringefficiency Measuring stability: www.ti.com/measuringstability
Views: 61241 Texas Instruments
48V Output from 125V DC Input 500mA Load Current Power Regulator
 
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The project published here is an adjustable high-voltage regulator with an output 48 V DC from input supply of 125V DC. Circuit is capable to drive load current up to 500mA. This regulator circuit designed for use in high-voltage applications where standard bipolar regulators cannot be used. Excellent performance specifications, superior to those of most bipolar regulators, are achieved through circuit design and advanced layout techniques. As a state-of-the-art regulator, the TL783 device combines standard bipolar circuitry with high-voltage double diffused MOS transistors on one chip, to yield a device capable of withstanding voltages far higher than standard bipolar integrated circuits. Because of its lack of secondary-breakdown and thermal-runaway characteristics usually associated with bipolar outputs, the TL783 maintains full overload protection while operating at up to 125 V from input to output. Other features of the device include current limiting, safe-operating-area (SOA) protection, and thermal shutdown. Even if ADJ is disconnected inadvertently, the protection circuitry remains functional. Only two external resistors are required to program the output voltage. An input bypass capacitor is necessary only when the regulator is situated far from the input filter. An output capacitor, although not required, improves transient response and protection from instantaneous output short circuits. Excellent ripple rejection can be achieved without a bypass capacitor at the adjustment terminal. Output voltage fixed 48V DC but it is adjustable by changing value of resistor value R6, refer data sheet for formula to choose appropriate value of R6. LT783 and transistors required large size heat sink. Features • Supply Input 70V to 125V DC • Output 48V DC • Output Current 500mA
Views: 39 TWO VOLT
Toshiba TCR15AG LDO Voltage Regulators | New Product Brief
 
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View full article: https://www.allaboutcircuits.com/industry-articles/toshiba-tcr15ag-ldo-voltage-regulators-new-product-spotlight/ Toshiba's TCR15AG LDO voltage regulators are tiny, efficient, low-noise regulators for Wi-Fi chipsets, cameras, and other noise-sensitive applications requiring tight regulation. The TCR15AG is housed in an ultra-small 0.8 mm x 1.2 mm WCSP6F package with a maximum thickness of 0.33 mm, making it perfect for thin, high-density designs. Despite its small size, the regulator can output up to 1.5 A at voltages from 0.6 to 3.6 V with 1% voltage accuracy. The regulator offers excellent ripple rejection ratio and load transient response and can be used to reduce ripple noise and fluctuations from PMICs or other DC/DC converters. Toshiba’s TCR15AG uses an external bias to achieve very low dropout voltage and offers multiple protections for reliable operation. For more information, as well as all the latest All About Circuits projects and articles, visit the official website at http://www.allaboutcircuits.com/ Check out Mouser's profile on All About Circuits and see more product briefs and articles at https://www.allaboutcircuits.com/author/mouser-electronics For more new products at Mouser, visit https://www.mouser.com/new/ Subscribe on YouTube: https://www.youtube.com/c/AllAboutCircuitsVideo Like us on Facebook: https://www.facebook.com/allaboutcircuits Follow us on Twitter: https://twitter.com/AllAboutCircuit Follow us on LinkedIn: https://www.linkedin.com/company/allaboutcircuits
Views: 306 All About Circuits
NMOS Low Drop-out Voltage Regulator with -17dB Wide-band Power Supply Rejection
 
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A fully on-chip Low Drop Out (LDO) regulator that uses an NMOS output transistor, designed in 22FDX technology, is presented. Proposed LDO capitalizes on technological advantages of back gate bias available in 22FDX to reduce the drop out voltage for regulator and achieve wide band power supply rejection. Charge-pump is used to apply forward back-bias on the NMOS pass device to reduce its threshold voltage down to 0V and enable low drop out regulation. The LDO generates 0.91V output from 1.35V input supply with load current capacity of 15mA. Proposed LDO provides wide band power supply rejection achieving worst case PSR of -17dB across 1Hz-10GHz frequency spectrum essential for SerDes applications. Unity gain bandwidth of above15MHz is achieved along with fast transient response of 63mV peak-to -peak for a current step of 14mA in 100ns.
Views: 128 INVECAS Inc.
How to Make Better Ripple, Noise and Transient Measurements on a DC Power Rail
 
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See how you can make your best ripple, noise and transient measurements on a DC power rail. Subscribe: http://bit.ly/Scopes_Sub See the solution at: http://www.keysight.com/find/solution-powerintegrityanalyzer
Views: 2109 Keysight Labs
Transistor voltage regulator and ripple filter circuits explained
 
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Let's delve into these circuits to see how they work. I bread-boarded a transistor regulator near the end of the video.
Views: 24766 JohnAudioTech
TDA8947J
 
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Online Store: https://www.utsource.net Product Link: https://www.utsource.net/pro/TDA8947J.html Features SE: 1 W to 25 W, BTL: 4 W to 50 W operation possibility (2.1 system). Soft clipping. Standby and mute mode. No on/off switching plops. Low standby current. High supply voltage ripple rejection. Outputs short-circuit protected to ground, supply and across the load. Thermally protected. Pin compatible with TDA8944AJ and TDA8946AJ. Applications Television. PC speakers. Boom box. Mini and micro audio receivers.
Views: 295 Channel2 Utsource
Understanding Ripple Blocker
 
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Micrel's Carlos Huerta explains Ripple Blocker, a power supply noise attenuator from Micrel. This product reduces or eliminates power supply noise that can interfere with all kinds of electronic devices--from cellphones to GPS units, from medical scanning devices to cameras.
Views: 1202 Micrelinc
Power Supply Measurement Techniques Instructional Seminar - Vol 1
 
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This instructional seminar shows power supply measurement techniques using Picotest Signal Injectors. Volume one discusses the PSRR of Voltage Regulators.
Views: 2761 Picotest1
What is PSRR in op amp
 
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What is PSRR in op amp - Find out more explanation for : 'What is PSRR in op amp' only from this channel. Information Source: google
Views: 166 moibrad08a
Minimizing Switching Regulator Residue in Linear Regulator Outputs
 
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Originally posted 8/10/2011 In this video, excerpted from LTC Application Note 101, Jim Williams explains the causes of linear regulators’ dynamic limitations and presents board level techniques for measuring and improving ripple and spike rejection.
Views: 129 EDN
Drives School (E2) - Common mode explained
 
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Common mode from drives and how to counter measure
Views: 5793 Reidar Berntsen
Extreme low ripple/noise Power Supply
 
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5V/1A power supply measurements, based on Ti TPS7A4700
Views: 847 StreamingPlaza
Cable noise -- differential vs. common-mode signaling
 
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A test performed on a signal cable, purposely placed near an AC noise source (a powered extension cord), comparing differential noise voltage versus common-mode noise voltage. Moral of the story: differential signals are more resistant to interfering noise.
Views: 12797 BTCInstrumentation
Simulation Of Adjustable Bipolar Voltage Regulator Circuit Using LM337-CIRCUIT WIZARD SOFTWARE
 
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Simulation Of Adjustable Bipolar Voltage Regulator Circuit Using LM337-CIRCUIT WIZARD SOFTWARE Design and Description of Project : For op-amp circuits the power supply must provide positive and negative voltages. Here is a simple circuit “Adjustable Bipolar Voltage Regulator” which gives regulated ± 1.2V to ±2oV supply. ICs LM317K (IC1) and LM337K (IC2) are used here as positive and negative regulators respectively. The IC1 LM337 has internal feedback regulation and current passing elements. It incorporates various protection circuits such as current limit (which limits package power dissipation to 15 watts for the TO-220 package and 20 watts for TO-3 package) and thermal shutdown. Thus these two ICs form an independently adjustable bipolar power supply. The steel K package will easily furnish one ampere each if the heatsink are properly mounted. Variable resistor VR1 and VR2 are adjusted for each regulator to give a regulated output approximately between ±1.2V to ±20 volts. Capacitors C5 and C6 are used to improve AC ripple voltage rejection. However, if a short-circuit occurs across the regulator output, C5 will adjust the current in the terminal. The output of adjustable bipolar voltage regulator can be calculated by the formula. V0 = 1.25V(1+VR1/R1) Comoponents : R1, R2 = 120Ω, 0.5W VR1, VR2 = 2 KΩ LIN C1, C2 = 4700 µF/25V (Electrolytic Capacitors C3, C4 = 0.1 µF (Ceramic Capacitors) C5, C6 = 10 µF/35V (Electrolytic Capacitors) C7, C8 = 1 µF/35V (Electrolytic Capacitors) IC1 = LM317K IC2 = LM337K D1 – D4 = 1N5421 X1 = 230V AC primary to 22V-0-22V, 1.5A Secondary Transformer
Frequency Response Analysis using Oscilloscopes
 
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Bode gain & phase, power supply control loop response Get the Power Supply Testing Toolkit ► http://bit.ly/2bRwmcW Click to subscribe! ► http://bit.ly/Scopes_Sub Application note: http://bit.ly/ScopesBode Thanks for watching the Keysight Oscilloscopes Webcast Series! Learn more about using digital storage oscilloscopes: http://oscilloscopelearningcenter.com Check out our blog: http://keysightoscilloscopeblog.com Like our Facebook page: https://www.facebook.com/keysightbench/ More about Keysight scopes: http://www.keysight.com/find/scopes Agenda: Power Supply Design Trends 2:08 Output Ripple 3:11 (output noise, PARD, Power Integrity) -common probes used 4:10 -Probing techniques & example measurements 6:39 --10:1 passive probe 7:56 --10:1 passive probe with probe socket 9:06 -Using FFT analysis to measure ripple 10:31 --10:1 vs 1:1 probe 13:29 --Use a Power Rail Probe (N7020A) 14:10 Power Supply Rejection Ration 18:58 (Power Supply Ripple Rejection) -Physical Setup 21:21 -Setting up a PSRR measurement 22:47 -Measuring PSRR 24:40 -Oscilloscope vs Network Analyzer (VNA) 26:08 Control Loop response measurements 27:02 -Power supply transient response analysis 28:02 -DC-DC converter block diagram 28:19 -Typical Loop Gain Measurement 29:40 -Control loop response measurement configuration 31:42 -Control loop response physical test setup 34:00 -Setting up a control loop response measurement on the oscilloscope 34:46 -Control Loop Response (Bode plot) - Gain plot 36:17 -Control Loop Response (Bode plot) - Phase plot 37:47 -Manual phase margin measurement 38:52 -Oscilloscope vs Network Analyzer (VNA) 39:36 Oscilloscope vs Network Analyzer overview 40:30 Review & summary 44:31 Keysight Oscilloscope Portfolio 45:18 Recommended probes for power supply measurements 47:05 Additional Technical Resources 49:13 Live Q&A 50:28 2-Minute Guru playlist: https://www.youtube.com/playlist?list=PLzHyxysSubUkc5nurngzgkd2ZxJsHdJAb Download free 30-day trials of Keysight's design & test software at http://www.keysight.com/find/free_trials
Views: 3516 Keysight Labs
LDO Regulator, Low VIN, Low Noise and High PSRR, 200 mA - NCP110 Series
 
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This video demonstrates some of the features and capabilities of the NCP110 Series evaluation boards. The NCP110 Series evaluation boards from ON Semiconductor is designed to be a linear regulator capable of supplying 200 mA output current from 1.1 V input voltage. Understand how to set-up and measure results for this board to optimize efficiency. For more information on this evaluation board, visit our website at: http://www.onsemi.com/PowerSolutions/product.do?id=NCP110
Views: 53 ON Semiconductor
Troubleshooting Eurorack Noise Issues
 
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After thinking I was going to lose my mind due to, um, noise issues, I replaced the switching power supply (Volgen KTPs65-1543DT 3P) on an Enclave case (MakeNoise Powered Bus Board) with a linear power supply (Triad WDU 15-1700) and that fixed almost all of the issues. The situation could be further improved by putting oscillators and VCAs on their own bus board. This video is a bit dry and not very linear. Skip to 11:30 for the before/after punchline. Thanks to Paul T Schreiber for suggesting a linear power supply and to Mr. Nelson of Trogotronic for pointing out that one of my power supplies was linear after a lengthy email exchange about diagnostics. To apply this to your situation, you need to know three things, all of which should be on the label for the power supply: 1. The input voltage and frequency. In other words, your wall power A/C is. In the US that's 120V at 60Hz. 2. The output of your existing power supply. e.g. 15V at 1.7 A 3. The polarity of the output. With those parameters you can search for a power supply. In the US Mouser and Newark have great interfaces for finding power supplies. You can identify linear power supplies because they only accept a single voltage/frequency combination. In addition, it's typical to see a capacitor at the end of the circuit which helps to smooth the converted current. In my case I went with this one rather than a more powerful one specifically because the output circuit was very simple, with a typical bridge rectifier followed by a capacitor: http://catalog.triadmagnetics.com/Asset/WDU15-1700.pdf
Views: 782 FTW
Switch Mode Power Supply Measurements and Analysis
 
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Learn how to use an oscilloscope to debug your power supply! Click to subscribe! ► http://bit.ly/Scopes_Sub Find out more about testing power supplies and power consumption with Keysight Oscilloscopes: http://www.keysight.com/find/scopes-power Keysight's Johnnie Hancock teaches how to use a digital storage oscilloscope or mixed signal oscilloscope to debug, characterize, and analyze your switching power supply. Learn basic tips and techniques for measuring, probing, and analyzing your designs. Learn more about using oscilloscopes: http://oscilloscopelearningcenter.com Check out our blog: http://keysightoscilloscopeblog.com Like our Facebook page: https://www.facebook.com/keysightbench/ Agenda: Power supply basics 1:35 linear power supplies vs switch mode power supplies Switching power supply measurements overview 2:57 Switching power supply trends 3:57 Probe Deskew 4:36 Power supply measurments -input line measurements and analysis 5:40 --Power quality 6:08 --Current harmonics 10:20 --Inrush current 12:20 -switching device analysis 13:40 --Switching losses 14:03 --Switching Phases 16:30 --Power Losses and Energy Losses 17:17 --Rds(on) 19:15 --Conduction and Toff Losses 21:02 --Vconduction measurement limitations 21:51 --Slew Rate 24:26 --Modulation 26:10 -Design Trade-offs 28:25 -output measurements 26:25 --Output Ripple 29:43 ---Probing Limitations & techniques 31:15 --Turn on time & turn off time 37:05 --Transient Response Analysis 38:12 --Efficiency 39:42 --Power Supply Rejection Ration (PSRR) 40:45 Wrap up & review 46:36 Recommended probes & commonly used probes 47:27 Additional technical resources 49:23 Q&A 49:46 Download free 30-day trials of Keysight's design & test software at http://www.keysight.com/find/free_trials Music by Lou Leaves the Room
Views: 7431 Keysight Labs
TDA7388 Car Subwoofer Amplifier Circuit Diagram Surround quad bridge car radio amplifier
 
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Circuit Diagram https://goo.gl/PGjwYx 4 x 45 W The TDA7388 is an AB class audio power amplifier, packaged in Flexiwatt 25 and designed for high end car radio applications. Based on a fully complementary PNP/NPN configuration, the TDA7388 allows a rail to rail. Based on a fully complementary. TDA7388 ST Soma electronics Audio Amplifiers 4X41W QUAD BRDG CAR RADIO AMPLIFIER datasheet,Besides its contribution to the ripple rejection, the SVR capacitor governs the turn ON/OFF time sequence and, consequently, plays an essential role in the pop optimization during ON/OFF transients. Features  High output power capability: – 4 x 45 W / 4  max. – 4 x 26 W / 4  @ 14.4 V, 1 kHz, 10 %  Low distortion  Low output noise  Standby function  Mute function  Automute at min. supply voltage detection Circuit Diagram https://goo.gl/PGjwYx
Views: 1708 Soma Eletronics
LDO Regulator, Ultra-Low Noise and High PSRR, 250 mA – NCP160 Series
 
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This video demonstrates some of the features and capabilities of the NCP160 Series evaluation boards. The NCP160 Series evaluation boards from ON Semiconductor is designed to be a linear regulator capable of supplying 250 mA output current. Understand how to set-up and measure results for this board to optimize efficiency. For more information on this evaluation board, visit our website at: http://www.onsemi.com/PowerSolutions/product.do?id=NCP160 Description
Views: 142 ON Semiconductor
TFA9842BJ
 
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Online Store: https://www.utsource.net Product Link: https://www.utsource.net/pro/TFA9842BJ.html Features 1 W to 7.5 W operation possibility Soft clipping Standby and mute mode No on or off switching plops Low standby current High supply voltage ripple rejection Outputs short-circuit protected to ground, supply and across the load Thermally protected
Views: 12 Channel2 Utsource
What is PSRR
 
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What is PSRR - Find out more explanation for : 'What is PSRR' only from this channel. Information Source: google
TDA8920BJ
 
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Online Store: https://www.utsource.net Product Link: https://www.utsource.net/itm/p/1269601.html Description The TDA8920BJ is a high efficiency class-D audio power amplifier with very low dissipation. The typical output power is 2×100 W. The device is available in the HSOP24 power package and in the DBS23P through-hole power package. The amplifier operates over a wide supply voltage range from ±12.5V to ±30V and consumes a very low quiescent current. Features High output power. High supply voltage ripple rejection. Internal switching frequency can be overruled by an external clock. Full short-circuit proof across load and to supply lines. Thermally protected.
Views: 138 Channel2 Utsource
Introducing: KOMA Strom Power System
 
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Strom is a strong, reliable and cost effective power solution for the Eurorack modular system. Both Strom and Strom+ modules offer short circuit protection, a replaceable fuse and an ultra low ripple on all rails. The input voltage is 15V DC (we offer a high quality 15V PSU from CINCON in our bundles) and the output to the modules is 1,5A on both +12V and +5V rails and 1,0A on the -12V rail. It can be used with normal busboards and flying busboards. STROM+ additionally offers our new Current Sensing Technology. It gives the user visual feedback of the current consumption in the case. The status LED’s on each rail will turn orange once the current consumption is approaching it’s maximum load. Once the rail’s maximum load has been reached, or has gone over, the LED will turn red. One active module can power up multiple skiffs thanks to the Strom Passive Module that distributes the power and can be linked to an active or another passive module with the two link connectors on the front panel of the module. More information on: https://www.koma-elektronik.com/
Views: 2985 KOMA Elektronik
TPS720xx: LDO Linear Regulators
 
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http://www.farnell.com - Technical review of TPS20xx low dropout voltage regulators and detailed discussions of internal operation
Views: 115 FarnellElectronics
Synthrotek CASE POWER Product Released!!! NEW Eurorack Power Supply!
 
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http://store.synthrotek.com/Case-Power_c_133.html Case Power is a marriage of the 5A Power Supply System (now further regulating the +12V rail) and the Noise Filtering Distribution board, resulting in a love child called Case Power. It is safe, clean, quiet, and will power small and large Eurorack systems. Connecting Case Power to your current bus board system is easy with molex or spade connectors. We have 3U or 1U power entry panels available, but Case power does have to take up valuable HP space; you can wire a jack, LED and switch into your case and easily attach them to the board. Features: Noise filtering capacitors are placed in two sections on the board to help minimize module to module noise Advanced low-noise, fully regulated voltage converters on each rail Over-current protection: shuts off each power rail automatically if modules use too much current on that rail Eighteen 16-pin Eurorack power connections, keyed for safety Molex connector for daisy chaining Synthrotek distribution/bus boards Spade connectors for connecting other manufacturers’ bus boards Screw clamp headers for power entry wiring and daisy-chaining an additional Case Power Multiple power options to fit your needs and budget: +12V @ 3A, -12V @ 2.5A, +5V @ 1.5A +12V @ 3A, -12V @ 1.3A, +5V @ 1.5A +12V @ 2A, -12V @ 500mA, +5V @ 1.5A LED status indicator for each rail (+12V, -12V, +5V) Protective cover over converters Eight mounting holes for screwing into your case Optional 1U or 3U backlit Eurorack panels with on/off switch (2.1mm barrel) Screw clamp headers for power entry wiring and daisy-chaining an additional Case Power Fits an 84HP case or larger Dimensions: 14⅞ x 1⅜ (37.8 x 3.5cm) height: 22mm (spacers add 3mm) Requires 16-19V 90W center-positive power brick
Views: 2652 Jeff Baker
Oscilloscope Averaging
 
03:51
Get professional PCBs for low prices from www.pcbway.com --~-- About a month ago we published a video on measuring power supply ripple with an oscilloscope. Someone mentioned in the comments that we should have used the averaging function on the scope. So in this video we take a look at how to use an oscilloscope averaging function, along with a high frequency rejection to produce a cleaner waveform.
Views: 547 learnelectronics
Large AC ripple On Top of FWBR DC
 
04:37
Only a power supply with FWBR DC with large AC ripple will work!
Views: 87 TPUBruce
Micrel Ripple Blocker MIC94300
 
00:24
The MIC94300 integrated load switch and MIC94310 DC-DC regulator incorporate Micrel's Ripple Blocker active filter technology to provide high frequency ripple attenuation (switching noise rejection) for applications where switching noise cannot be tolerated by sensitive downstream circuits.
Views: 217 jgursslin1
Telonic explores Switch Mode Power Supply Noise Measurement.
 
06:10
A perfect DC power supply would have pure DC at its output terminals with no noise and no regulation under load, but the Real World doesn't quite work like that. Charles (an engineer at Telonic Instruments) shows how to recognise and measure the several sources of noise in the output of a mains-powered switch mode power supply. He discusses how the various types of imperfections occur, and why the output capacitors can suffer an early death in poorly designed units. Charles shows appropriate probing techniques and how to avoid common mistakes. A near-field probe is also used. Finally he shows how to determine the efficiency of the unit. The test power supply is powered from a Kikusui PCR2000M AC source. This provides a very clean and stable variable voltage/frequency source of mains for the various tests. Between the PCR2000M and the test unit sits a Kikusui KPM1000 Digital Power Meter -- this gives a precise measure of the input current and power (including phase angle). The test unit is loaded with a Kikusui PLZ-150U Electronic Load, enabling various precise load conditions to be simulated. Finally, a RIGOL DS4054 4GSa/s 'scope gives an accurate display of the various signals coming out of the test unit.
Views: 1312 TelonicInstruments

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