Three winding transformer-based isolated type bidirectional active full bridge DC-DC converter

• Main Authors: Hang Lijun, Tong Anping, Wang Yilong, Gan Biao, Zhang Hao
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2016
• 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

The invention discloses a three winding transformer-based isolated type bidirectional active full bridge DC-DC converter. Based on an isolated type bidirectional active full bridge converter, the three winding transformer-based isolated type bidirectional active full bridge DC-DC converter is realized via a three winding transformer, a first switch K1 and a second switch K2. On-off of the first switch K1 and the second switch K2 is determined via a ratio between a high voltage end and a low voltage end. According to the three winding transformer-based isolated type bidirectional active full bridge DC-DC converter, on a primary side of a voltage transformer, the three winding transformer is introduced and a circuit is a traditional isolated type bidirectional full bridge DC-DC converter in a first working mode; in a second working mode, a circuit on a secondary side of the voltage transformer adopts combination of two half-wave rectification modes, and therefore only two switch tubes need to be switched on or