Control circuit for suppressing electromagnetic interference signals

A control circuit for suppressing electromagnetic interference signal. The control circuit has an input and an output. The control circuit includes a variable gain filter circuit with a first gain factor that is variable. The variable gain filter circuit is arranged to receive a signal indicative of...

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Bibliographische Detailangaben
Hauptverfasser:	POON, NGAI KIT FRANKI, CHAN, ON BON PETER
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A control circuit for suppressing electromagnetic interference signal. The control circuit has an input and an output. The control circuit includes a variable gain filter circuit with a first gain factor that is variable. The variable gain filter circuit is arranged to receive a signal indicative of an electromagnetic interference signal and output a signal to a controlled signal source with a second gain factor. The control circuit also has a 10 controller operably connected with the variable gain filter circuit. The controller is arranged to receive a signal indicative of an output signal at the output of the control circuit and output a control signal to the variable gain filter circuit based on the received signal so as to control the first gain factor to reduce or minimize the electromagnetic interference signal.