快充驅動器

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

110119740

專利證號

I 762338

專利獲證名稱

快充驅動器

專利所屬機關 (申請機關)

國立陽明交通大學

獲證日期

2022/04/21

技術說明

本揭示文件提供一種快充驅動器，用以為電子裝置的電池充電。快充驅動器包含快充電路以及充電控制器。快充電路包含第一空乏型氮化鎵電晶體、第一增強型場效電晶體、第二空乏型氮化鎵電晶體以及第二強型場效電晶體。充電控制器用以依據電池電量控制快充電路在定電流模式或定電壓模式下運作。利用第一空乏型氮化鎵電晶體以及第二空乏型氮化鎵電晶體具有相對較低的切換耗損的特性，從而降低快充驅動器為電池充電的功率耗損，進而提升充電速度。 The present disclosure provides a fast charging driver. The fast charging driver is configured to charge a battery of an electronic device. The fast charging driver includes a fast charging circuit and a charging controller. The fast charging circuit includes a first depletion-type GaN transistor, a first enhancement-type field effect transistor, a second depletion-type GaN transistor and a second enhancement-type field effect transistor. The charging controller is configured to control the fast charging circuit to operate in a constant current mode or a constant voltage mode according to a battery level of the battery. The first depletion-type GaN transistor and the second depletion-type GaN transistor with characteristic of the switch consumption relatively low, so as to decrease the power consumption during charging the battery by the fast charging driver, and the charge speed can be improve.