Circuit for e.g. preventing over-voltage in battery, has voltage monitoring unit whose input is connected to positive terminal of energy accumulator, and whose output is connected to control terminal of controllable power switch

摘要

The circuit has a discharge circuit (2) that is provided with input terminals (3,4) for providing alternating current (AC) input voltage. The input of a controllable power switch (6) is connected with the positive output (7) of a rectifier circuit (5), and reference line (9) is connected to the negative output (8) of the rectifier circuit. The input of a voltage monitoring unit is connected to the positive terminal (10) of the energy accumulator, and the output of the voltage monitoring unit is connected to the control terminal of the controllable power switch.