Integrated circuits

AC input detection and power supply protection IC

One cell Lithium-ion/Lithium-polymer battery protection IC

Precision adjustable shunt regulator

Dual operational amplifiers

Dual operational amplifiers

One cell Li-ion/Li-polymer battery secondary protection IC

PFC switching power control IC for LED lights

Discharge IC

Primary side AC-DC Flyback PWM control IC with built-in high voltage regulator

Step-down DC-DC converter IC

TVS diode array

Voice switched speakerphone circuit