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New Technique for Non-Invasive Testing of Regulator Stability
Output impedance is the key to testing filter and regulator phase margin, even when the control loop is inaccessible. Many voltage regulators are of…
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A Simple Method to Determine ESR Requirements for Stable Regulators
A single, simple measurement is described that allows the determination of the ESR required to achieve a desired phase margin, using a particular value…
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Measuring Optocouplers with the J2130 DC Bias Injector and the OMICRON Lab Bode 100 VNA
Many power supplies use optocouplers in the feedback loop. The stability and overall performance of the power supply are often dependent on the CTR…
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Power Supply Measurement Techniques: Non-Invasive Phase Margin using the J2111A Current Injector
This instructional seminar shows power supply measurement techniques using Picotest Signal Injectors. Volume two discusses the Non-Invasive Phase Margin measurement of Voltage Regulators using…
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Reverse Transfer Measurement: Using the Bode 100 and the Picotest J2111A Current Injector
This application note shows how the reverse transfer characteristic of a linear voltage regulator (LM317) can be measured using the OMICRON Lab Bode 100…
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Selecting Test Signal Injectors
A number of test signal injectors are used when evaluating the performance of power supplies and other low-frequency components with a network analyzer. Network…
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Powering RF and Microwave Systems
RF/microwave design engineers faced with developing effective power circuits for a system require more complete data sheets, appropriate computer-aided simulation models, and suitable test…
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These Seven Trends May Change Power Design Dramatically
New power semiconductor technologies such as silicon carbide (SiC) and gallium nitride (GaN) promise to rewrite the record books with respect to power supply…
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An Accurate Method For Measuring Capacitor ESL
The equivalent series inductance (ESL) of chip capacitors is becoming an increasingly important parameter as bandwidths and switching frequencies rise in many high-performance systems.…
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Measuring MOSFET Gate Resistance
The OMICRON Lab Bode 100 Network Analyzer, used in conjunction with the Picotest J2130A DC Bias Injector, is a perfect combination for measuring the…
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Power Supply Measurement Techniques Instructional Videos: PSRR Measurement using the J2120A Line Injector
The instructional video demonstrates the PSRR measurement of a voltage regulator using the Picotest J2120A Line Injector and also discusses what the measurement represents.…
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Step-by-Step Guide to Measuring PSRR Using a Network Analyzer and the Line Injector
This application note shows how the Power Supply Rejection Ratio, or PSRR, of a linear voltage regulator (LM317) can be measured using the Picotest…