Invention Grant
- Patent Title: Voltage generating circuit
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Application No.: US15966176Application Date: 2018-04-30
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Publication No.: US10289145B2Publication Date: 2019-05-14
- Inventor: Shinya Sano , Masashi Horiguchi , Takahiro Miki , Mitsuru Hiraki
- Applicant: RENESAS ELECTRONICS CORPORATION
- Applicant Address: JP Tokyo
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, PC
- Priority: JP2011-088072 20110412
- Main IPC: G05F3/26
- IPC: G05F3/26 ; G05F3/30 ; H02M3/158 ; G05F3/20

Abstract:
A voltage generating circuit, in which the influence of offset of an amplifier on an output voltage is reduced, has first and second bipolar transistors (Q1, Q2) having emitter terminals at the same electric potential. A base terminal of Q1 is disposed on a collector side of Q2. A first resistance element connects the collector side of Q2 with the base side of Q2; and a second resistance element (R1) connects a collector side of Q1 to R2. A third resistance element (R3) connects a base terminal of Q2 with the electric potential of the emitter terminals. An amplifier (A1) outputs a voltage based on a voltage difference between the collector sides of Q1 and Q2; and a voltage-current converting section (MP1, MP2) converts amplifier output into a current supplied to the connection node of R1 and R2. A voltage is then output on the basis of the generated current.
Public/Granted literature
- US20180253118A1 VOLTAGE GENERATING CIRCUIT Public/Granted day:2018-09-06
Information query
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