Compensation circuit, method of operation thereof and converter employing the same

A switched-mode power converter (100) has a modulator (150) that develops a drive signal for a power switch (Q1), and a compensation circuit (160). In one embodiment the compensation circuit (160) includes (1) a sensor (170) that senses the output characteristic of the converter, and (2) a filter (1...

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Bibliographische Detailangaben
Hauptverfasser:	BOYLAN, JEFFREY J, THOTTUVELIL, VIJAYAN JOSEPH, JACOBS, MARK E
Format:	Patent
Sprache:	eng ; fre ; ger
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 switched-mode power converter (100) has a modulator (150) that develops a drive signal for a power switch (Q1), and a compensation circuit (160). In one embodiment the compensation circuit (160) includes (1) a sensor (170) that senses the output characteristic of the converter, and (2) a filter (180), coupled to the sensor, that develops an intermediate signal representing a change in the output characteristic. The modulator (150) adjusts a switching period of the drive signal as a function of the intermediate signal thereby to decrease a reaction delay of the converter.