JPS6486222A - Constant-voltage circuit - Google Patents
Constant-voltage circuitInfo
- Publication number
- JPS6486222A JPS6486222A JP24334687A JP24334687A JPS6486222A JP S6486222 A JPS6486222 A JP S6486222A JP 24334687 A JP24334687 A JP 24334687A JP 24334687 A JP24334687 A JP 24334687A JP S6486222 A JPS6486222 A JP S6486222A
- Authority
- JP
- Japan
- Prior art keywords
- constant
- voltage
- collector
- constitute
- circuit
- 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 stabilize the voltage by adding a constant voltage generating circuit device between the collector of a transistor and the collector of the transistor to constitute a current mirror circuit. CONSTITUTION:The circuit is composed of first-third transistors (Tr) 8-10 to constitute a resistance for supplying a current, a diode 4, resistances 5-7 and a band gap circuit, fourth-fifth Trs 12-13 to constitute a current mirror circuit and seventh-eighth Trs 17-18 to constitute resistances 14-15 for supplying a constant current, a sixth Tr 16 and a Darlington circuit. At this time, between the collector of the Tr 10 and the collector of the Tr 12, a constant- voltage generating circuit device 19 is connected. Thus, even under the condition to impress the excessive surge voltage to an external power source terminal 1, the Tr 18 is driven without fail and the voltage rise of a constant-voltage output terminal 2 can be suppressed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24334687A JPS6486222A (en) | 1987-09-28 | 1987-09-28 | Constant-voltage circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24334687A JPS6486222A (en) | 1987-09-28 | 1987-09-28 | Constant-voltage circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486222A true JPS6486222A (en) | 1989-03-30 |
Family
ID=17102461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24334687A Pending JPS6486222A (en) | 1987-09-28 | 1987-09-28 | Constant-voltage circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486222A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0350223U (en) * | 1989-09-22 | 1991-05-16 | ||
JPH0386420U (en) * | 1989-12-21 | 1991-09-02 | ||
JP2006263837A (en) * | 2005-03-22 | 2006-10-05 | Disco Abrasive Syst Ltd | Flattening method of wafer |
JP2010211788A (en) * | 2009-02-10 | 2010-09-24 | Seiko Instruments Inc | Voltage regulator |
CN102103387A (en) * | 2009-12-18 | 2011-06-22 | 上海华虹集成电路有限责任公司 | Voltage stabilizing circuit adaptive to current balance |
-
1987
- 1987-09-28 JP JP24334687A patent/JPS6486222A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0350223U (en) * | 1989-09-22 | 1991-05-16 | ||
JPH0386420U (en) * | 1989-12-21 | 1991-09-02 | ||
JP2006263837A (en) * | 2005-03-22 | 2006-10-05 | Disco Abrasive Syst Ltd | Flattening method of wafer |
JP2010211788A (en) * | 2009-02-10 | 2010-09-24 | Seiko Instruments Inc | Voltage regulator |
CN102103387A (en) * | 2009-12-18 | 2011-06-22 | 上海华虹集成电路有限责任公司 | Voltage stabilizing circuit adaptive to current balance |
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