Markov chain controlled random modulation of switching signals i

Details Markov chain controlled random modulation of switching signals i Markov chain controlled random modulation of switching signals i

1993-08-05

1996-04-23

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323283, G05F 144

Patent

active

055106986

ABSTRACT:
Markov chain controlled random modulation of switching signal sequences of for a power converter. The control is implemented in a power converter having an energy storage device which receives an input power from a source and provides an output power to a load. The converter includes a switching device for coupling the input power source to the energy storage device or coupling the storage device to the load in response to receiving a sequence of control signals generated from a control signal generator. The control signal generator includes a switching signal generator for providing a nominal switching signal sequence which achieves steady state between the input power to the converter and the output power supplied to the load, a modulator for modulating the nominal switching signal sequence with a source of non-deterministic signals to produce a time modulated switching signal sequence, and a control device for controlling the modulator in response to determining the previous modifications performed to the nominal switching signal sequence to maintain a predetermined range of deviation between the time modulated switching signal sequence and the nominal switching signal sequence.

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Leung, Frank H. F., and Peter K. S. Tam, "An Adaptive Digital Controller for Switching Dc-dc Converters", 1991 IEEE Conference on Industrial Electronics, Control and Instrumentation, Kobe, Japan, Oct.-Nov. 1991, pp. 507-512.
Lin, Bor-Ren, "Analysis of Fuzzy Control Method Applied to Dc-Dc Converter Control", Applied Power Electronics Conference, San Diego, California, Mar. 1993, pp. 22-28.
Stankovic, A. M., G. C. Verghese and R. O. Hinds, "Monte-Carlo Verification of Power Spectrum Formulas for Random Modulation Schemes", IEEE Workshop on Computers in Power Electronics, Berkeley, California, Aug. 1992, pp. 187-194.

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