| 发明名称 |
Charging circuit for capacitor |
| 摘要 |
A charging circuit for a capacitor includes a current mirror module including a first branch circuit, a second branch circuit and a third branch circuit for supplying a plurality of output currents respectively, a switching module coupled to the first branch circuit and the second branch circuit for determining a conducting condition of the switching module according to the plurality of output currents from the first branch circuit and the second branch circuit, and an active loading circuit coupled to the third branch circuit and the switching module for adjusting a current passing through the active loading circuit according to the conducting condition of the switching module. The capacitor has one end coupled to the first branch circuit and the switching module to process a charging operation according to the output current of the first branch circuit. |
| 申请公布号 |
US9048675(B2) |
申请公布日期 |
2015.06.02 |
| 申请号 |
US201213409109 |
申请日期 |
2012.03.01 |
| 申请人 |
Anpec Electronics Corporation |
发明人 |
Yang Tse-Lung;Chang Hsiang-Chung |
| 分类号 |
H02J7/00;H02J7/34 |
主分类号 |
H02J7/00 |
| 代理机构 |
|
代理人 |
Hsu Winston;Margo Scott |
| 主权项 |
1. A charging circuit for a capacitor comprising:
a current mirror module comprising a first branch circuit, a second branch circuit and a third branch circuit for providing a plurality of output currents respectively; a switching module coupled to the first branch circuit and the second branch circuit for determining a conducting condition of the switching module according to the plurality of output currents of the first branch circuit and the second branch circuit; and an active loading circuit coupled to the third branch circuit and the switching module for adjusting a current passing through the active loading circuit according to the conducting condition of the switching module; wherein one end of the capacitor is coupled to the first branch circuit and the switching module to perform a charging process according to the output current of the first branch circuit; wherein the switching module further comprises a first transistor and a second transistor to determine the conducting conditions of the first transistor and the second transistor according to the plurality of output currents of the first branch circuit and the second branch circuit. |
| 地址 |
Hsinchu Science Park, Hsin-Chu TW |
