is widely considered the definitive blueprint for engineers looking to master power supply stability and loop compensation. [3]
is a recognized expert in power electronics, currently serving as a Business Development Manager at Future Electronics in Toulouse, France. He graduated from the Montpellier University (B.S.E.E.) and obtained a Master of Science in Electrical Engineering (M.S.E.E.) in power electronics from the National Polytechnic Institute of Toulouse .
While "Designing Control Loops" is considered a top resource, engineers often complement Basso’s methods with simulation tools. While SPICE simulations are common, SIMPLIS is frequently used for faster, more accurate simulation of switching converter control loops.
+------------+ +---------------+ ------>| Error Amp |------>| Modulator / |------+-----> Vout Input | (Type I/II/III) | Power Stage | | +------------+ +---------------+ | ^ | | +---------------+ | +--------------| Feedback Net |<-----+ +---------------+ The Open-Loop Gain (
The 593-page volume is typically organized into sections that progress from foundational principles to advanced measurement: is widely considered the definitive blueprint for engineers
In summary, Designing Control Loops for Linear and Switching Power Supplies has earned its place as a modern classic. Its success lies in its ability to respect the academic rigor of control theory while always keeping one foot planted firmly in the practical realities of the engineering lab.
| Chapter Title | Core Concepts Covered | Key Topics | | :--- | :--- | :--- | | | Open/Closed-Loop Systems, Perturbations, Feedback | Integral/Derivative Terms, Basic System Analysis | | 2. Transfer Functions | Laplace Transform, Poles, Zeros, Bode Plots | Constructing and interpreting transfer functions | | 3. Stability Criteria | Phase Margin, Gain Margin | Methods for determining system stability | | 4. Compensation | Introduction to Compensation | Overview of compensator types and their roles | | 5. Operational Amplifier-Based Compensators | Type 1, 2, 3 Compensators | Design equations and examples | | 6. Operational Transconductance Amplifier-Based Compensators | OTA Compensators | OTA-specific design techniques | | 7. TL431-Based Compensators | Shunt Regulator Compensators | Isolated supply compensation | | 8. Shunt Regulator-Based Compensators | Alternative Shunt Regulator Designs | Further isolated supply techniques | | 9. Measurements and Design Examples | Bench Verification, Bode Plots | Practical lab work, design case studies |
The design process begins with the selection of the error amplifier, which is used to compare the output voltage to a reference voltage and generate an error signal. The error amplifier must be carefully selected to ensure that it provides adequate gain and bandwidth for the control loop.
Transformer humming or whining due to unstable switching frequencies. While "Designing Control Loops" is considered a top
The material is structured into three primary segments designed for sequential learning:
In the world of power electronics, the difference between a power supply that works and one that is reliable, efficient, and stable often comes down to one critical discipline: .
Switching power supplies, on the other hand, use a switching regulator to regulate the output voltage. The switching regulator can be modeled as a pulse-width modulated (PWM) voltage source, where the output voltage is proportional to the duty cycle of the switch. The control loop in a switching power supply is more complex than in a linear power supply, as it requires a PWM modulator and a compensator to ensure stability.
In conclusion, designing control loops for linear and switching power supplies is a complex task that requires a deep understanding of control systems, power electronics, and circuit analysis. Christophe Basso's book provides a comprehensive guide to designing control loops for both linear and switching power supplies, and his work has been widely adopted in the industry. By following the design steps outlined in his book, engineers can design stable and efficient power supplies that meet the requirements of a wide range of applications. Its success lies in its ability to respect
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A power supply without a properly optimized feedback loop is vulnerable to voltage oscillations, poor transient response, and catastrophic component failure. Basso’s work bridges the gap between abstract control theory and concrete circuit execution, transforming intimidating mathematical loop equations into actionable design recipes. Core Concepts of Loop Control in Power Electronics
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Provides methodologies for measuring loop gain and verifying stability on the bench. Go to product viewer dialog for this item.