Method of controlling an H-bridge

Details Method of controlling an H-bridge Method of controlling an H-bridge

1996-12-30

1998-07-21

Nguyen, Matthew V.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

H02M 75387

Patent

active

057842701

ABSTRACT:
Controlling an H-bridge of switches, characterized in that during a cycle, the current takes a peak value of constant sign during a continuous portion corresponding to a cycle fraction equal to .vertline.<V>/U.vertline., where <V> is the mean voltage applied to the load and U is the voltage of the DC voltage source, said portion being preceded by a cycle portion corresponding to a cycle fraction equal to 1/2(1-.vertline.<V>/U.vertline.) during which the two switches (I1, I2) of the H-bridge which are connected to ground are closed (or open as the case may be), and followed by a cycle portion likewise corresponding to a cycle fraction equal to 1/2(1-.vertline.<V>/U.vertline.) during which the two switches (I1, I2) of the H-bridge which are connected to ground are open (or closed as the case may be).

REFERENCES:
patent: 4710686 (1987-12-01), Guzik
patent: 4879641 (1989-11-01), Rossi et al.
patent: 4937725 (1990-06-01), Dhyanchand et al.
patent: 5111378 (1992-05-01), Novak et al.
patent: 5365422 (1994-11-01), Close et al.
patent: 5379209 (1995-01-01), Goff
patent: 5530639 (1996-06-01), Schulz et al.

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