Switching power supplies have precious metals.
Switching mode power supply, also known as switching power supply, switching converter, is a high-frequency power conversion device, is a kind of power supply its function is to a bit of voltage, through different forms of structure into the user side of the demand for the voltage or current, switching power supply input most of the alternating current power supply or dc power supply, and the output of most of the need for dc power supply equipment, such as personal computers. The switching power supply converts the voltage and current between the two for devices such as personal computers.
Main application
Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, industrial control equipment, communication equipment, electric power equipment, instruments, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, liquid crystal displays, communication equipment, audio-visual products, security monitoring, computer chassis, digital products, and instrumentation and other fields.