JPS5597619A - Reference signal generating circuit - Google Patents
Reference signal generating circuitInfo
- Publication number
- JPS5597619A JPS5597619A JP643679A JP643679A JPS5597619A JP S5597619 A JPS5597619 A JP S5597619A JP 643679 A JP643679 A JP 643679A JP 643679 A JP643679 A JP 643679A JP S5597619 A JPS5597619 A JP S5597619A
- Authority
- JP
- Japan
- Prior art keywords
- trq
- voltage
- output
- reference voltage
- operational amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Control Of Electrical Variables (AREA)
Abstract
PURPOSE: To obtain the extremely accurate constant voltage by using the output of the feedback amplifier receiving the division of the corresponding reference voltage for the power source of the operational amplifier along with the output of the operational amplifier used as the reference voltage.
CONSTITUTION: The TRQ2 the emitter area of which is larger than transistor TRQ1 plus the collector of TRQ1 are connected to operational amplifier A1 which features the differential operation. The output of A1 is used as reference voltage signal VOUT via TRQ5 which operates via the emitter earth condition, and the divided voltage Vr is applied to the base of TRQ1 and Q2 each. Both TRQ1 and Q2 are driven with the same current to deliver signal VT depending on the temperature. Negative feedback amplifier A2 receives divided voltage V01 of voltage VOUT, and the output is used as the power source of amplifier A1 plus TRQ1 and Q2 each. With this invention, the reference voltage can be altered by securing the free short- circuit for resistances 71W73, and voltage VOUT has no fluctuation by other factors.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP643679A JPS5597619A (en) | 1979-01-19 | 1979-01-19 | Reference signal generating circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP643679A JPS5597619A (en) | 1979-01-19 | 1979-01-19 | Reference signal generating circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5597619A true JPS5597619A (en) | 1980-07-25 |
Family
ID=11638339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP643679A Pending JPS5597619A (en) | 1979-01-19 | 1979-01-19 | Reference signal generating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5597619A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56135216A (en) * | 1980-03-25 | 1981-10-22 | Sony Corp | Regulated power source circuit |
JPS59189421A (en) * | 1983-04-13 | 1984-10-27 | Nec Corp | Reference voltage circuit |
JPS60114917A (en) * | 1983-11-25 | 1985-06-21 | Hitachi Ltd | Constant voltage circuit |
JPS60191319A (en) * | 1984-03-13 | 1985-09-28 | Fuji Electric Corp Res & Dev Ltd | Constant voltage circuit |
US4626770A (en) * | 1985-07-31 | 1986-12-02 | Motorola, Inc. | NPN band gap voltage reference |
JP2007102563A (en) * | 2005-10-05 | 2007-04-19 | Asahi Kasei Microsystems Kk | Current generating circuit |
-
1979
- 1979-01-19 JP JP643679A patent/JPS5597619A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56135216A (en) * | 1980-03-25 | 1981-10-22 | Sony Corp | Regulated power source circuit |
JPS59189421A (en) * | 1983-04-13 | 1984-10-27 | Nec Corp | Reference voltage circuit |
JPS60114917A (en) * | 1983-11-25 | 1985-06-21 | Hitachi Ltd | Constant voltage circuit |
JPS60191319A (en) * | 1984-03-13 | 1985-09-28 | Fuji Electric Corp Res & Dev Ltd | Constant voltage circuit |
JPH0576050B2 (en) * | 1984-03-13 | 1993-10-21 | Fuji Denki Sogo Kenkyusho Kk | |
US4626770A (en) * | 1985-07-31 | 1986-12-02 | Motorola, Inc. | NPN band gap voltage reference |
JP2007102563A (en) * | 2005-10-05 | 2007-04-19 | Asahi Kasei Microsystems Kk | Current generating circuit |
JP4699856B2 (en) * | 2005-10-05 | 2011-06-15 | 旭化成エレクトロニクス株式会社 | Current generation circuit and voltage generation circuit |
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