Method and apparatus for regulating multiple outputs of a...

Details Method and apparatus for regulating multiple outputs of a... Method and apparatus for regulating multiple outputs of a...

2005-12-20

2005-12-20

Sircus, Brian (Department: 2836)

Electrical transmission or interconnection systems

Plural load circuit systems

Control of current or power

C323S282000

Reexamination Certificate

active

06977447

ABSTRACT:
A method and apparatus for regulating multiple outputs of a single inductor DC to DC converter includes processing that begins by producing a regulation signal to regulate a 1stoutput of the multiple outputs based on at least one of the multiple outputs. The processing then continues by identifying one of the multiple outputs to receive energy from the inductor during at least one cycle of the regulation signal. The processing continues by scaling the regulation signal for the at least one cycle based on the voltage of the particular output to receive the energy, the voltage of the 1stoutput and the supply voltage to the DC to DC converter when the particular output to receive the energy is not the 1stoutput. In this manner, when the output receiving the energy is not the 1stoutput (i.e., the directly regulated output), the regulation signal is scaled based on the desired duty cycle for the particular output.

REFERENCES:
patent: 5272614 (1993-12-01), Brunk et al.
patent: 6204651 (2001-03-01), Marcus et al.
patent: 2002/0060559 (2002-05-01), Umemoto
patent: 2002/0093320 (2002-07-01), Van Auken

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