A Color LED Driver Implemented by the Active Clamp Forward Converter

Design of Clamp Forward Converter Used in Computing Devices

In this paper, we implement a circuit topology for the gold standard ATX80+.The total output power is 255 watts under full load operation. An active-clamping ZVS forward converter is adopted to provide main power and in secondary side, the BUCK circuit technology is adopted to provide 3 sets power +12V, +5V and +3.3V. To eliminate the current harmonics and to achieve high power factor, an activ...

High Gain DC-DC Converter using Active Clamp Circuit (RESEARCH NOTE)

In this paper, a boost converter with a clamp circuit is proposed for high intensity discharge (HID) lamp application. The clamp circuit provides zero voltage turn on for both main and clamp switches. Compared to conventional boost converters, the proposed converter has the following advantages: (i) high voltage gain without suffering from extreme duty ratio, (ii) low stress on the switches and...

Active Clamp Zvs Flyback Converter with Output Voltage Douler

A Single-Stage LED Driver Based on Interleaved Buck-boost Circuit and LLC Resonant Converter

A single-stage LED driver based on interleaved buck-boost circuit and LLC resonant converter is proposed. The buck-boost circuit and LLC resonant converter are integrated by sharing switches, which can decrease the system cost and improve system efficiency. The input voltage of the buck-boost circuit is half of the rectified voltage, and two buckboost circuits are formed with the two half-bridg...

A Highly Efficient SEPIC-Flyback Integrated Converter as an LED Driver

Light-emitting diodes (LEDs) have been widely used for various lighting applications. A high power factor single-stage single-switch driver can be used to supply LEDs without using an electrolytic capacitor. By integrating the single-ended primary inductor converter (SEPIC) and flyback converter, LED driver could achieve nearly a unity power factor and low total harmonic distortion (THD). Since...