Power converter with a loop-compensated filter

Details Power converter with a loop-compensated filter Power converter with a loop-compensated filter

1997-08-05

1999-02-09

Nguyen, Matthew

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363132, H02M 744

Patent

active

058702989

ABSTRACT:
A power converter with a loop-compensated filter is disclosed. The power converter includes a decoupling circuit coupled to receive a signal having a dc component and a ripple component, wherein the dc component is filtered out by the decoupling circuit. A phase shifting circuit is used to shift phase of the ripple component of the signal in the decoupling circuit, and an adding circuit is used to add the phase-shifted rippled component of the signal and a setting signal that is used to regulate level of an output from the power converter. The power converter also includes a switching power conversion circuit coupled to receive an output of the adding circuit, wherein the switching power conversion circuit feeds back the output of the power converter whereby to form a feedback loop. The feedback loop is then compensated by the phase-shifted ripple component of the signal from the phase shifting circuit.

REFERENCES:
patent: 4227138 (1980-10-01), Espelage et al.
patent: 4358730 (1982-11-01), Beifus
patent: 5410466 (1995-04-01), Maehara
patent: 5729652 (1998-03-01), Hanson

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