Invention Grant
- Patent Title: Cascode current mirror circuit, bandgap circuit, reference voltage circuit having the cascode current mirror circuit and the bandgap circuit, and voltage stabilizing/regulating circuit having the reference voltage circuit
- Patent Title (中): 串联电流镜电路，带隙电路，具有共源共栅电流镜电路和带隙电路的参考电压电路以及具有基准电压电路的稳压/调节电路
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Application No.: US12185276Application Date: 2008-08-04
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Publication No.: US08111057B2Publication Date: 2012-02-07
- Inventor: Chi-En Liu , Jean-Fu Kiang
- Applicant: Chi-En Liu , Jean-Fu Kiang
- Applicant Address: TW Taipei
- Assignee: National Taiwan University
- Current Assignee: National Taiwan University
- Current Assignee Address: TW Taipei
- Priority: TW97115197A 20080425
- Main IPC: G05F3/16
- IPC: G05F3/16
Abstract:
A cascode current mirror circuit and a bandgap circuit are provided. The circuits are used together and function as a reference voltage circuit. The reference voltage circuit outputs a reference current resistant to temperature variation and ripple-voltage. Accordingly, a voltage stabilizing/regulating circuit corrects error voltage precisely and promptly, and the resultant voltage is temperature insensitive and ripple-voltage-independent.
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