| Title |
The New Active Voltage Clamp ZVS-PWM Resonant High-frequency Inverter |
| Authors |
안용위(Ahn, Yong-Wie) ; 김홍신(Kim, Hong-Shin) ; 문상필(Mun, Sang-Pil) ; 우경일(Woo, Kyung-Il) ; 박한석(Park, Han-Seok) |
| DOI |
https://doi.org/10.5370/KIEEP.2017.66.4.188 |
| Keywords |
ZVS-PWM high-frequency inverter ; Fixed-two methods ; High efficiency ; Partial resonance ; PWM control characteristics |
| Abstract |
In this paper, a ZVS-PWM high-frequency inverter with a PWM control function is applied to commercial system 220[Vrms], and a resonator type ZVS-PWM high-frequency inverter circuit with a fixed-two methods were proposed. The parameters of the transformer model equivalent circuit of a copier fixing device, which is an essential element in the parameter optimization of the proposed circuit, are obtained by using a high-frequency amplifier and its frequency characteristics are described. The proposed method compared to the existing single-ended ZVS-PFM high frequency inverter can suppress the voltage and current peak value of the power semiconductor switching device and reduce the switching loss. The efficiency of the proposed method itself is 98[%] at rated power output. Also, the efficiency of 96[%] can be obtained even at low output, so that the proposed high frequency inverter is very efficient inverter. The total efficiency from the commercial AC input to the inverter output is 93[%] at rated, which is considered efficient for use in copying machines. In addition, the diode bridge loss accounts for the largest portion of the overall system efficiency distribution. On the other hand, the nonparallel filter has a very low loss. |