Low power consumption wireless wake-up module controlling AC power supply at household appliances

In this paper, we propose a wireless wake-up module controlling AC power supply to reduce power consumption at household electric appliances. The module is mainly composed of an Rx antenna, a wake-up IC, a microcontroller, an internal AC-DC converter, and two relays. The total current consumption of the module is about 15uA. The current consumption is around 1/300 that of a conventional module owing to the use of our developed low-power wake-up IC and the microcontroller with deep-sleep mode. The communication distance achieves 35m with output power of 18.3dBm under line-of-sight propagation.