Buck regulator with plural outputs

Details Buck regulator with plural outputs Buck regulator with plural outputs

1998-05-21

1999-11-02

Nguyen, Matthew

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

G05F 1656

Patent

active

059777532

ABSTRACT:
A buck regulator provides two outputs via two transformer-coupled inductors each coupled to a respective output capacitor and to a respective diode or switch for allowing current to flow in the respective inductor for charging the respective output capacitor during intervals between pulses of a pulsed input supply. One of the inductors is directly coupled and the other of the inductors is coupled via a further capacitor to the pulsed input supply so that current for charging the respective output capacitors flows in both inductors during the pulses. Each inductor can be tapped, and/or the transformer turns of the inductors are equalized, so that no a.c. voltage appears across the further capacitor and the output voltages can be different. The output voltages can also be stacked or of opposite polarities.

REFERENCES:
patent: 5287261 (1994-02-01), Ehsani
patent: 5502630 (1996-03-01), Rokhwarg
patent: 5541828 (1996-07-01), Rozman
patent: 5552695 (1996-09-01), Schwartz
patent: 5559684 (1996-09-01), Ohms et al.

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