Anwell Semiconductor Corp.

Bo-En Yan

Chun-Chieh Kuo

Shih-Ping Tu

Cheng-Po Hsiao

Chung-Hsin Huang

A high performance linear driving circuit converting an AC voltage of an external power supply into a DC output current and then outputs the DC current to at least one LED includes a detection unit, a control unit and a current unit. In a 180-degree phase sine wave period of the AC voltage, the total current of the output current is formed by a first working section, an energy saving section and a second working section, and the detection unit detects at least a voltage value of the AC voltage or a current value of the output current to generate a detection signal, and drives the control unit to modulate the duty cycle and current value of the first working section, energy saving section and second working section, and the amounts of current of the first and second working sections are greater than that of the energy saving section.

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Hsin-Chu, Taiwan

Bo-En Yan