发明授权
US07701734B2 Detection circuit to detect input voltage of transformer and detecting method for the same
有权
用于检测变压器输入电压的检测电路及其检测方法
- 专利标题： Detection circuit to detect input voltage of transformer and detecting method for the same
- 专利标题（中）： 用于检测变压器输入电压的检测电路及其检测方法
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申请号： US11465364申请日： 2006-08-17
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公开(公告)号： US07701734B2公开(公告)日： 2010-04-20
- 发明人: Chuh-Ching Li , Ta-yung Yang
- 申请人： Chuh-Ching Li , Ta-yung Yang
- 申请人地址： TW Taipei Hsien
- 专利权人： System General Corp.
- 当前专利权人： System General Corp.
- 当前专利权人地址： TW Taipei Hsien
- 代理机构： J.C. Patents
- 主分类号： H02M3/335
- IPC分类号： H02M3/335
摘要：
A circuit and a method for detecting a voltage of a transformer are provided. The circuit includes a current output circuit coupled to a winding of a transformer to generate a current signal. A current-to-voltage circuit is coupled to the current output circuit to generate a voltage signal in response to the current signal. A sample-and-hold circuit generates an output signal by sampling the voltage signal. An input voltage is applied to the transformer. The output signal is correlated to the input voltage of the transformer.
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