Design and implementation of an auto flushing device with ultra-low standby power

As an automatic toilet flushing device will usually flush when the user is close and switch off when the user is leaving, the device still consumes 0.5 to 1 W of power when no user is using the toilet for 24 hours a day. Our improved design decreases the standby power consumption of an auto flushing device. By using a sensor, low-power chips and a state control mechanism, our auto flushing device consumes 10 mW when no user is present, which means more power saving in the long run. In addition, this design is an easy replacement for the current flushing device.