Design and implementation of a socket with low standby power

Turned-off electric home appliances generally they still require standby power when they are plugged in. In this paper we present a way to reduce the standby power of a socket. Our socket supplies the appliances with power when the user turns them on. When the user turns them off, our socket shuts the electric power off and reduces the standby power to zero. Our design uses an MCU which receives signals from a PIR sensor which detects the user when approaching the socket and the appliances. A power detector provides an MCU to control the SSR On/Off when used as an appliance switch for shutting off the standby power. The components we use are very inexpensive and consume less than 0.4 W. The MCU monitoring program provides both automatic detection of the user by the PIR sensor and detection of power consumption.

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