发明名称 |
Flyback boost circuit with current supplied to secondary side of transformer circuit prior to boost operation and strobe device using the same |
摘要 |
A flyback boost circuit includes an output voltage detection terminal provided to a secondary winding of a transformer of the flyback boost circuit, and configured to detect an output voltage. Prior to the start of a boost operation, current is supplied to a secondary side of the transformer via the output voltage detection terminal to detect a voltage generated at the output voltage detection terminal, to thereby detect an unwired state by determining whether or not there is floating of the output voltage detection terminal or a grounding terminal of the secondary winding of the transformer. |
申请公布号 |
US8619439(B2) |
申请公布日期 |
2013.12.31 |
申请号 |
US20090461452 |
申请日期 |
2009.08.12 |
申请人 |
IKEZAWA KATSUYA;KINOSHITA KUNIO;TAKENAKA TAKUYA;YAMAWAKI YASUHIRO;KUROIWA TATSUO;SONY CORPORATION |
发明人 |
IKEZAWA KATSUYA;KINOSHITA KUNIO;TAKENAKA TAKUYA;YAMAWAKI YASUHIRO;KUROIWA TATSUO |
分类号 |
H02M3/335 |
主分类号 |
H02M3/335 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|