CONTROL CIRCUIT AND SWITCHING POWER SUPPLY THEREOF

Abstract: a control circuit for a switching power supply with adaptive voltage positioning control, can include: a compensation signal generation circuit configured to receive a digital voltage reference signal, a digital voltage sampling signal representing an output voltage of the switching power supply, and a digital droop voltage, and to integrate an error between the digital voltage reference signal and a sum of the digital voltage sampling signal and the digital droop voltage, in order to generate a compensation signal; and an adaptive voltage positioning control circuit configured to generate a positioning signal according to the compensation signal, in order to adjust the output voltage.

Inventor(s): Shenhua Zhang, Sheng-Fu Hsiao

CPC Classification: H02M3/1584 (APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers ; dynamo-electric converters ; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters ))

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