BATTERY SYSTEM

摘要

A battery system, having at least one battery cell, wherein a circuit arrangement is provided in a negative current path. The circuit arrangement includes two series-connected field-effect transistors, of which the battery-cell-side field-effect transistor has a charge-current-blocking diode path and can be bridged by a precharging path with a precharging resistor, and the field-effect transistor which is remote from the battery cell has a discharge-current-blocking diode path. The system also includes a voltmeter for detecting a voltage present across the field-effect transistor directly upstream and downstream of the field-effect transistor which is remote from the battery cell; and a current sensor for detecting a current flowing through the negative current path.

主权项

1. A battery system comprising:
at least one battery cell, a circuit arrangement provided in a negative current path, the circuit arrangement including
a first field-effect transistor and a battery-cell-side field-effect transistor connected in series,the battery-cell-side field-effect transistor having a charge-current-blocking diode path, wherein the battery-cell-side field-effect transistor can be bridged by a precharging path with a precharging resistor, andthe first field-effect transistor located remote from the battery cell and having a discharge-current-blocking diode path; a voltmeter for detecting a voltage across the field-effect transistor; and a current sensor for detecting a current flowing through the negative current path.