首页>
外国专利>
Battery charging circuit for maintaining a substantially constant average value of charging current despite variations in charging voltage
Battery charging circuit for maintaining a substantially constant average value of charging current despite variations in charging voltage
展开▼
机译:电池充电电路,即使充电电压发生变化也可保持基本恒定的充电电流平均值
展开▼
页面导航
摘要
著录项
相似文献
摘要
A battery charger includes a transistor inverter. The transistor inverter includes an oscillation transformer and a switching transistor for controlling a current flowing through a primary coil of the oscillation transformer. This current charges the battery when the transistor is on. While the switching transistor is in an off state, charging current is supplied to the battery from a secondary coil of the oscillation transformer. The period of time where the switching transistor is in an on state is controlled depending on the amplitude of a supply voltage. Accordingly, the average value of a charging current to the rechargeable battery is automatically kept substantially constant despite variations in the amplitude of the alternating current voltage supply.
展开▼