1. An audio device: input, output amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, power amplifiers, etc.
2. power supply: switching regulator `DC / AC converter` SW regulator and so on.
3 .Communications Electronic Equipment: High-frequency amplifier `filter` transmitter electrical circuit.
4. Office automation equipment 4: motor drives.
5. Car: electronic regulator `power` ignition controller.
6. Computer:. CPU board `` floppy disk drive power devices.
7. Power Modules: Inverters `solid` relay rectifier bridges.
8. lamps lighting: With advocated the promotion of energy-saving lamps, LED lamps used in the aluminum plate began large-scale applications
