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公开(公告)号:US20090027928A1
公开(公告)日:2009-01-29
申请号:US12180756
申请日:2008-07-28
申请人: Xiaopeng Dong , Chaojun Zhu
发明人: Xiaopeng Dong , Chaojun Zhu
IPC分类号: H02H9/02
CPC分类号: H02J7/0044
摘要: A step up converter with overcurrent protection is disclosed. The step up converter can precisely limit the output current of the upstream device. Current from the input terminal of the converter is detected and compared with a predetermined maximum current to get a comparison value which is delivered to a close-loop regulator. The overcurrent protection is achieved by the regulator outputting a control signal to fulfill the conduction or resistance increase of a resistive element of the protection circuit. Furthermore, detection of the temperature or the output voltage may trigger shut off of the protection circuit to implement a protection function.
摘要翻译: 公开了一种具有过电流保护功能的升压转换器。 升压转换器可精确限制上游设备的输出电流。 检测来自转换器的输入端的电流,并将其与预定的最大电流进行比较,以获得递送到闭环调节器的比较值。 过流保护通过调节器输出控制信号来实现,以实现保护电路的电阻元件的导通或电阻增加。 此外,检测温度或输出电压可能触发保护电路的切断以实现保护功能。