Abstract: The present invention discloses an AC/DC converting control circuit, which is used in transformerless AC/DC converting apparatuses. The control circuit primarily includes a current-switch circuit, a duty-control circuit and a load-current limiting circuit. When electrically connecting with a load and a voltage source in series, the control circuit of the present invention reduces the oscillation during on/off switching and provides a stable output current.
Type:
Grant
Filed:
December 14, 2001
Date of Patent:
April 8, 2003
Assignee:
Macroblock, Inc.
Inventors:
Te-Cheng Chen, Johnny Yang, Hui-Hwa Chen
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