| 摘要 |
PURPOSE: A battery cell voltage monitoring circuit is provided to protect a battery by maintain the balance between battery cells through monitoring the voltage of the battery cell. CONSTITUTION: A battery cell voltage monitoring circuit includes a battery pack(110), analog multiplexers(120, 122), a differential amplifier(130), and a MICOM(140). The battery cells of the battery pack are connected in series. The analog multiplexer is connected to a detection line leaded from the detection point of the battery cell through a photocoupler. The differential amplifier outputs the detection voltage. |
