| Original document(20 pages) Authorized document(21 pages) 中文版 |
The present invention provides a voltage stabilizing circuit and its relative control method and the present invention provides one stable voltage. The voltage stabilizing circuit includes a bipolar transistor, a capacitor module and an operation amplifier for feedback control. The operation amplifier has an amplifier circuit, a driver stage and a current mirror. The transistor charges the capacitor module to set the stable voltage; and the operation amplifier controls the drive current of the drive stage to the base of the transistor through feedback and based on the magnitude of the stable voltage. When the stable voltage is within some preset ranges, the current mirror provides a supplementary current implanted to the drive stage to decrease the drive current of the transistor base, and this can limit the transistor current. |
Application Number
申请号 |
03106875 |
Application Date
申请日 |
2003.03.06 |
| Title 名称 |
Voltage stabilizing circuit with current mirror to compensate current and prevent initial overcurrent and its contol method |
Publication Number
公开号 |
1432885 |
Publication Date
公开日 |
2003.07.30 |
| Approval Pub. Date |
|
Granted Pub. Date |
2005.06.29 |
| International Classification 分类号 |
G05F1/56 |
Applicant(s) Name
申请人 |
Weisheng Electronics Co., Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Lin Youwei |
| Attorney & Agent 代理人 |
wang zhisen huang xiaolin |
| More information 更 多 信 息 |
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