Method for pulse modulation control of switching regulators

Details Method for pulse modulation control of switching regulators Method for pulse modulation control of switching regulators

2006-04-11

2006-04-11

Vu, Bao Q. (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

C323S224000, C363S041000

Reexamination Certificate

active

07026795

ABSTRACT:
A method for pulse modulation control of switching regulators includes positioning a series of parallel FET-type switches (high-side switches) between the input side of an inductor and the voltage supply. A second parallel series of FET-type switches (low-side switches) are used to connect the input side of the inductor to ground. A control module enables one or more of the high-side switches at the start of each switching cycle. The enabled high side switches remain enabled until the output of the buck-type switching regulator is within regulation or a current limit through the high-side switches has been exceeded. The control module then disables all high-side switches and enables an equivalent number of low-side switches. The low-side switches remain enabled until the output has fallen below regulation or current has ceased to flow from the inductor to the load of the regulator.

REFERENCES:
patent: 6362608 (2002-03-01), Ashburn et al.
patent: 6366062 (2002-04-01), Baretich et al.
patent: 6373728 (2002-04-01), Aarestrup
patent: 6396250 (2002-05-01), Bridge
patent: 6597157 (2003-07-01), Boeckmann et al.
patent: 6788033 (2004-09-01), Vinciarelli

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