发明名称 |
Flyback converter with an adaptively controlled rectifier arrangement |
摘要 |
A flyback converter includes input terminals and output terminals. A transformer with a first winding and a second winding are inductively coupled. A first switching element is connected in series with the first winding and a first series circuit with the first switching element, the first winding being coupled between the input terminals. A rectifier arrangement is connected in series with the second winding and a second series circuit with the rectifier arrangement, the second winding being coupled between the output terminals. The rectifier arrangement includes a second switching element. A control circuit is configured in one drive cycle to switch on the first switching element for a first time period. After the first time period the second switching element is switched on for a second time period. A third time period is determined between an end of the second time period and the time at which the transformer assumes a predetermined transformer state. The control circuit is further configured to adapt the second time period to be applied in a subsequent drive cycle dependent on the second time period applied in the one drive cycle and the third time period is determined in the one drive cycle. |
申请公布号 |
US8611109(B2) |
申请公布日期 |
2013.12.17 |
申请号 |
US20100895530 |
申请日期 |
2010.09.30 |
申请人 |
ROESSLER WERNER;HAUSMANN MICHAEL;INFINEON TECHNOLOGIES AG |
发明人 |
ROESSLER WERNER;HAUSMANN MICHAEL |
分类号 |
H02M3/335 |
主分类号 |
H02M3/335 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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