Power Integrity: It’s not just decoupling caps
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SPICE models need correlation to measurements
Many SPICE models are available online that were created by IC and semiconductor manufacturers. Unfortunately, availability doesn’t...
Software Enables Accurate Stability Test, Improves Non-Invasive Phase Margin Measurement Accuracy
The mathematics behind the non-invasive measurement was incorporated into the OMICRON Lab Bode 100 VNA software, sold by Picotest.com,...
Understanding Voltage Response Of An LC Circuit
For an undamped LC circuit excited by an AC voltage source through simple phaser equations, we come to see that the circuit becomes short...
FAQ# 26: How do I pick a voltage regulator that will be good for my circuit?
Steve Sandler Answers Your Voltage Regulator Questions (Power Electronics’ Q&A Series) Power Electronics received a question about how to...
FAQ#25: How do you measure PSRR of a linear regulator circuit that powers an oscillator for an ADC?
Steve Sandler Answers Your PSRR Questions (Power Electronics’ Q&A Series Follow Up) Earlier this month Power Electronics received a...
Understanding the Data Sheet Key to Effective Circuit Design
While the graph of Fig. 1 seems straightforward, there are several issues that become apparent when one tries to make sense of what the...
Evaluate Feedback Stability When There’s No Test Point
Fortunately, a new technique permits non-invasive stability testing of such devices.1 Designers can evaluate stability by measuring (on...
An Unconditionally Stable Linear Voltage Regulator
Is it possible to design an unconditionally stable linear voltage regulator? In fact, many believe that most regulator ICs are...
Stability Assessment of Fixed Regulators
There are cases where a Bode (gain?phase) plot cannot be obtained from a control loop. For example, a three terminal regulator or hybrid...
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...
Measuring LDOs requires more bandwidth than you think
Most electronic systems contain at least one voltage regulator, with many systems requiring several regulators, each providing a...
Generating Stable Voltage For Multiple Applications
Understanding the key parameters of diodes and other components used in reference voltage circuits can help avoid issues in different...