Smart home is a residential platform, using generic cabling technology, network communication technology, security technology, automatic control technology, audio and video technology to integrate the facilities related to home life, build an efficient management system of residential facilities and family schedule affairs, improve the safety, convenience, comfort and artistry of the home, and realize the environmental protection and energy saving living environment. Galaxy microelectronics provides a series of semiconductor discrete device products, including power diode / power rectifier bridge / power MOSFET / small signal transistor / optocoupler, etc., to help realize more energy-saving, smaller and more intelligent products.