An Easy Explanation of Subharmonic Oscillations & Slope Compensation in Current Mode Power Supplies

In this video, Dr Seyed Ali Shirsavar from Biricha Digital explains what subharmonic oscillations are, why they happen and how we fix the problem using slope compensation. As always, we have tried to keep all the explanations, clear, concise and easy understand. You can download a more detailed presentation from here: https://biricha.com/articles/psudf-su...

Watch Real Subharmonic Oscillations on the Oscilloscope and their Impact on the Bode Plot
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Watch Real Subharmonic Oscillations on the Oscilloscope and their Impact on the Bode Plot

What Happens if You Add too Much Compensating Ramp? Part 1: Current Mode Can Act Like Voltage Mode!
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What Happens if You Add too Much Compensating Ramp? Part 1: Current Mode Can Act Like Voltage Mode!

Easy to Follow Voltage Mode vs Current Mode vs Voltage Mode + Voltage Feedforward Control Methods
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Easy to Follow Voltage Mode vs Current Mode vs Voltage Mode + Voltage Feedforward Control Methods

PSU Design Fundamentals: Inductor Behaviour in a Switching Power Supply
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PSU Design Fundamentals: Inductor Behaviour in a Switching Power Supply

Lecture 27: Current-Mode Control
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Lecture 27: Current-Mode Control

What Happens if You Add too Much Compensating Ramp? Part 2: Poor stability and How Do We Fix it?
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What Happens if You Add too Much Compensating Ramp? Part 2: Poor stability and How Do We Fix it?

Lecture 01: Current mode control, Slope compensation, Buck converter, Sub-harmonic oscillation, CSN
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Lecture 01: Current mode control, Slope compensation, Buck converter, Sub-harmonic oscillation, CSN

Synchronous, Asynchronous, Diode Emulation! Which Switching Strategy is Best for your Application?
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Synchronous, Asynchronous, Diode Emulation! Which Switching Strategy is Best for your Application?

Talking About Joulescope Schematic: How Does It Measure Voltage and Current So Precisely?
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Talking About Joulescope Schematic: How Does It Measure Voltage and Current So Precisely?

The inner works of Peak Current Mode (PCM) control
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The inner works of Peak Current Mode (PCM) control

Design and Build a Current Mode Controller in One Hour
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Design and Build a Current Mode Controller in One Hour

Digital Average Current Mode Control of Switch-Mode Power Supplies
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Digital Average Current Mode Control of Switch-Mode Power Supplies

MOSFET Gate Drive Resistor Selection - Part 2: Turn Off
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MOSFET Gate Drive Resistor Selection - Part 2: Turn Off

Snubber Design
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Snubber Design

Input Capacitor Selection for Power Supplies (Part 1)
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Input Capacitor Selection for Power Supplies (Part 1)

Current Transformer based Current Sense Circuit Design for Current Mode Power Supplies
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Current Transformer based Current Sense Circuit Design for Current Mode Power Supplies

Introduction to Peak Current Mode Control
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Introduction to Peak Current Mode Control

Something is jamming GPS over Europe. Here's what we found
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Something is jamming GPS over Europe. Here's what we found

Feedback loop compensation of current-mode Flyback converter
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Feedback loop compensation of current-mode Flyback converter

The Insane Genius of a Formula 1 Gearbox
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The Insane Genius of a Formula 1 Gearbox