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US5453677A Battery charger with high sensitivity 失效
电池充电器灵敏度高

Battery charger with high sensitivity
摘要:
A battery charger includes a battery voltage detecting circuit for detecting a voltage of a battery during a charging operation. The battery voltage detecting circuit includes a pair of a first and a second voltage-dividing resistor. A transistor is interposed between the first and second voltage-dividing resistors. A predetermined voltage is applied to the base of the transistor, so that the battery voltage is detected based on the voltage divided by the first and second voltage-dividing resistors.
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