首页>
外国专利>
Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function
Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function
展开▼
机译:用于充电器电路系统的过电压保护电路和具有过电压保护功能的充电电路
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention discloses an overvoltage protection (OVP) circuit for use in a charger circuit system, comprising: a power transistor electrically connected between a voltage supply and a battery; an OVP circuit which turns off the transistor when a voltage supply exceeds a threshold value; and a multiplexing circuit electrically connected between an output of the OVP circuit and the gate of the transistor. The present invention also discloses a charger circuit with an OVP function, comprising: a single power transistor electrically connected between a voltage supply and a battery; an OVP control circuit which turns off the power transistor when a voltage supply exceeds a threshold value; and a charger control circuit which controls the gate of the power transistor to determine a charge current to the battery when the voltage supply does not reach the threshold value.
展开▼