Switch Power Source and Method for Controlling Switch Power Source

A switching power supply and a method for controlling the switching power supply, the switching power supply includes: an input power supply, a front-stage circuit which includes a first inductor and at least two switch devices, and a post-stage isolated circuit which includes a primary-side switch...

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Bibliographische Detailangaben
1. Verfasser:	WANG Linguo
Format:	Patent
Sprache:	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 switching power supply and a method for controlling the switching power supply, the switching power supply includes: an input power supply, a front-stage circuit which includes a first inductor and at least two switch devices, and a post-stage isolated circuit which includes a primary-side switch circuit, a transformer and a secondary-side rectification circuit. One end of the first switch device is connected to a positive electrode of the input power supply, one end of the second switch device and an input-end of the first inductor are jointly connected to another end of the first switch device, another end of the second switch device is connected to a negative electrode of the input power supply, an output-end of the first inductor is connected to the primary-side switch circuit of post-stage isolated circuit, and another end of the primary-side switch circuit is connected to another end of the second switch device.