| Title |
A Zero-Voltage-Switching Programmable Power Supply |
| Authors |
오덕진(O, Deok-Jin) ; 임상언(Im, Sang-Eon) ; 김희준(Kim, Hui-Jun) |
| Keywords |
Programmable Power Supply ; ZVS-PWM Converter ; Active Clamp ; Current Doubler Rectifier |
| Abstract |
A zero-voltage-switching(ZVS) programmable power supply employing the ZVS active clamp forward converter is suggested. Through the analysis on operation region of the supply, the constant power region and the maximum current limit region are clearly identified. Furthermore, the duty ratio range corresponding to the variation range of the output voltages and the control scheme at the minimum duty ration region are presented. Finally, in order to vefity the validity of the operation for the proposed power supply, experimental evaluation results obtained on an 1kW prototype power supply for the 198~242VAC input voltage range(220VAC pm10%), the 0~25V output voltage range, and the 100kHz switching frequency are presented. |