Control
Middlebrook1976
Middlebrook's original 1976 paper on input filter interactions. Make sure you design your filter properly to avoid interactions with your switching power supply.
S.S. Kelkar Dissertation
S.S. Kelkar's original 1982 dissertation on feedforward control. This is the first known attempt at controlling the input filter with the converter cell.
[A08] Six Common Reasons for Power Supply Instability
There are many causes for apparent instability in a controller, not just a lack of phase margin in the loop.
[088] PSRR and Low-Performance Control Loops
PSRR becomes a major problem with poorly-designed control loops.
[073] Point-Of-Load Converter Design – Part II Input Filter Interactions
Point-of-load converters are prone to unusual results when considering the input filter design with low value capacitors.
[072] Point-Of-Load Converter Design - Part I Loop Gains and Step Loads
Point-of-load converter loops need to measured as they push the state-of-the-art in crossover frequencies.
[020] Buck-Boost Converter with Current-Mode Control
Free downloadable software shows the characteristics of the current-mode buck-boost (flyback) converter.
[019] Buck-Boost Converter with Voltage-Mode Control
Free downloadable software shows the characteristics of the current-mode buck-boost (flyback) converter.
[018] Boost Converter with Current-Mode Control
Free downloadable software shows the characteristics of the current-mode boost converter.
[017] Boost Converter with Voltage-Mode Control
Free downloadable software shows the characteristics of the voltage-mode boost converter.
[016] Buck Converter with Current-Mode Control
Free downloadable software shows the characteristics of the current-mode buck converter.
[015] Buck Converter with Voltage-Mode Control
Free downloadable software shows the characteristics of the voltage-mode buck converter.
[014] 38 Years of Current-Mode Control
A short summary of the important features of current-mode control, and links to the definitive free book on the topic.
[006] The Digital Power Supply Revolution
Digital power is all the rage now, but don't expect it to shorten your design time, or to eliminate the need for complete optimization of the analog parts of the power supply.
[002] Sepic Converter Analysis
The Sepic converter dc analysis is presented, showing why this is a popular converter. Beware of the ac characteristics though.
