| Title |
A Multi-Load Sharing Characteristic Using Novel Buck-Boost Chopper Circuit |
| Authors |
Ki-Young Suh ; Sang-Pil Mun ; Soon-Kurl Kwon ; Hyun-Woo Lee ; Sang-Hwa Jung |
| Keywords |
Buck-boost chopper circuit ; DC-DC converter ; multi-load characteristic |
| Abstract |
A DC-DC converter is being widely used for various household appliances and for industry applications. The DC-DC converter is powered from single battery, and the voltage is varied according to the purpose. In the vehicle, various accessories whose electric power is different are being used. Thus, plural number of DC-DC converter should be provided, so these situations bring complicated circuits, and accordingly, higher cost. Under such backgrounds, in this paper, we propose a novel buck-boost chopper circuit with simply configuration which can supply to two or more different output loads. The propose chopper circuit can control output voltages by controlling duty ratio by using typically two switching devices, which is composed by single boost-switch and single buck-switch. The output voltage can be controlled widely. A few modified circuits developed from the fundamental circuit are represented including the general multi-load circuit. And all this merits and appropriateness was proved by computer simulation and experience. |