Zero-voltage switching push-pull converter

• Main Authors: LIN, HUA, YING, JIAN-PING, CHU, CHIU-HUA, TSAI, WEN-YIN
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2005
• Subjects: 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

A zero-voltage switching push-pull converter is provided in the present invention. The invention comprises the followings: a transformer, which includes a primary coil having a central extracting head and a secondary coil; an electric energy storage supply apparatus with its one end electrically connected to the central extracting head of the primary coil and the other end grounded; a first main switch device with its first terminal electrically connected to the first end of the primary coil and its second terminal grounded; a second main switch device with its first terminal grounded and its second terminal electrically connected to the second terminal of the primary coil; and a rectification circuit unit, which is electrically connected to the secondary coil to output DC power by converting AC power supplied from the secondary winding. The invention is characterized in that the switch devices of the primary circuit to are switched at zero voltage.