Invention Grant
- Patent Title: Reference voltage generator circuit
- Patent Title (中): 参考电压发生器电路
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Application No.: US11892209Application Date: 2007-08-21
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Publication No.: US07642840B2Publication Date: 2010-01-05
- Inventor: Hajime Kurata , Kunihiko Gotoh
- Applicant: Hajime Kurata , Kunihiko Gotoh
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Arent Fox LLP
- Main IPC: G05F3/02
- IPC: G05F3/02
Abstract:
A reference voltage generator circuit is provided which is capable of stable generation of a reference voltage. A differential amplifier circuit has a non-inverting input terminal input with the voltage Vbe1 generated by a PNP transistor Q1 and an inverting input terminal input with an output signal thereof. A differential amplifier circuit has a non-inverting input terminal input with the voltage Vbe2 generated by a PNP transistor Q2 and an inverting input terminal input with the output signal of the differential amplifier circuit through a resistor R1 and also input with an output signal thereof through a resistor R2, to generate a reference voltage Vref.
Public/Granted literature
- US20070290669A1 Reference voltage generator circuit Public/Granted day:2007-12-20
Information query
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