Power supply circuit for a consumer electronics device.

摘要

A consumer electronics device such as a television receiver or a video recorder generally operates with a mains-supplied stand-by mode and a normal mode. During the stand-by mode, the device must be capable of recognising a command sent by a remote control unit and of switching the device to normal mode. On the other hand, the power consumption should be as low as possible during stand-by mode. The invention is based on the object of reducing the power consumption from the mains during stand-by mode in the ecological sense. According to the invention, a third mode is provided as ecological mode in which only the remote control receiver (5) and a filter (6) connected to its output are supplied with operating voltage. The filter (6) detects the reception of a code allocated to the device and thereupon activates the microprocessor (7) controlling the device. The device is preferably completely disconnected from the mains during stand-by mode and ecological mode and a battery (3) is connected to the remote control receiver (5) and filter (6). Particularly for television receivers and video recorders with stand-by mode.