发明授权
- 专利标题： Electronic trip device comprising a power supply control device
- 专利标题（中）： 电子跳闸装置，包括电源控制装置
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申请号： US240488申请日： 1994-05-10
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公开(公告)号： US5541499A公开(公告)日： 1996-07-30
- 发明人: Dominique Villard
- 申请人： Dominique Villard
- 申请人地址： FRX
- 专利权人： Merlin Gerin
- 当前专利权人： Merlin Gerin
- 当前专利权人地址： FRX
- 优先权： FRX9306279 19930521
- 主分类号： H02H3/08
- IPC分类号： H02H3/08 ; G05F1/563 ; H02H1/06 ; G05F1/40
摘要：
The power supply control device comprises two regulating modes, linear regulation and chopping regulation. A current from a sensor, rectified by diodes, supplies a power supply circuit comprising a storage capacitor and a regulating transistor. A resistor and a control circuit measure the value of the current and select the regulating mode via a selector. If the current is lower than a preset threshold regulation is linear, the base of the transistor is connected to a Zener diode. When the current exceeds a preset threshold regulation is chopped and the base of the transistor is connected to the output of a comparator.
公开/授权文献
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