| Title |
Characteristics analysis of time sharing method VVVF type high frequency resonant inverter |
| Authors |
Gyu-Pan Cho ; Jae-Sun Won ; Seung-Sik Nam ; Kwang-Yeal Sim ; Yeung-Ho Bea ; Dong-Hee Kim |
| Abstract |
This paper describes the time sharing type high frequency resonant inverter can be used as power source of induction heating. This proposed inverter can be obtained output frequency three times than switching frequency by composing three unit inverter of conventional Half-Bridge serial resonant inverter in parallel with input power source. also, this proposed inverter can not only realize the output control of independence irrespective of the switching frequency using Phase-shift but also reduce switching loss because it has ZVS function. The analysis of the proposed circuit is generally described by using the normalized parameters. The principle of basic operating and the its characteristics are estimated by the parameters such as switching frequency(μ), the variation of phase angle(φ) of Phase-shift. Experimental results are presented to verify theoretical discussion. This proposed inverter will be able to be practically used as a power supply in various fields as induction heating application, DC-DC converter etc. |