Feedback loop compensation for buck/boost switching converter

Details Feedback loop compensation for buck/boost switching converter Feedback loop compensation for buck/boost switching converter

2008-06-09

2010-10-26

Riley, Shawn (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

C323S364000

Reexamination Certificate

active

07821238

ABSTRACT:
A system and a method are disclosed for providing an optimized feedback loop compensation for a buck/boost switching converter circuit. The buck/boost switching converter circuit may be operating in either a continuous conduction mode boost mode, or a continuous conduction mode buck mode, or a discontinuous conduction mode. A compensation circuit is provided that includes an error amplifier circuit that includes at least one compensation capacitor that provides an additional capacitance that adjusts a location of at least one dominant pole and at least one compensation zero of the buck/boost switching converter circuit to provide optimized feedback loop compensation.

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Biranchinath Sahu et al., “A Low Voltage, Dynamic, Noninverting, Synchronous Buck-Boost Converter for Portable Applications”, IEEE Transactions on Power Electronics, vol. 19, No. 2, Mar. 2004, pp. 443-452.
Daniele Corona et al., “Stabilization of switched affine systems: An application to the buck-boost converter”, IEEE 2007, Proceedings of the 2007 American Control Conference, Jul. 11-13, 2007, pp. 6037-6042.

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