| 摘要 |
PURPOSE: A battery voltage measurement circuit and a power storage system comprising the same are provided to prevent a control part from being damaged, by insulating the control part and an input port to which a high voltage is applied, and to measure a high voltage outputted from a number of batteries. CONSTITUTION: A battery voltage measurement circuit(100) includes a switching device(110), a voltage conversion circuit(120), an analog-digital converter(130), and a control part(140). The switching device is connected to a battery outputting a first voltage and is turned on by corresponding to a voltage measurement command. The voltage conversion circuit is connected to the switching device, and outputs a second voltage in proportion to the first voltage. The analog-digital converter converts the second voltage into a digital signal. The control part transmits the voltage measurement command to the switching device, and receives the digital signal of the analog-digital converter. |
