JPS55116114A - Constant voltage circuit - Google Patents
Constant voltage circuitInfo
- Publication number
- JPS55116114A JPS55116114A JP2269679A JP2269679A JPS55116114A JP S55116114 A JPS55116114 A JP S55116114A JP 2269679 A JP2269679 A JP 2269679A JP 2269679 A JP2269679 A JP 2269679A JP S55116114 A JPS55116114 A JP S55116114A
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- ratio
- vbe
- transistors
- current
- 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)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE: To improve temperature characteristics by using a current Miller circuit instead of a transistor which generates a difference in base-emitter voltage between two transistors.
CONSTITUTION: Transistors Tr1 and Tr7 have their current density ratio held constant without reference to a change in temperature by a current Miller circuit composed of Tr's 3 and 4. Further, the current density ratio can freely be set by adjusting the emitter area ratio of either or both couples of Tr's 1 and 7, and Tr's 3 and 4. Next, ΔVBE generated beteween Tr's 1 and 7 appears across resistance 6 being multiplied by a constant value (resistance ratio of resistance 6W8), and consequently the sum of VBE of Tr9 and the above-mentioned voltage is developed at output VREF. Here, equalizing the emitter area of Tr's 4 and 11 to that of Tr's 5 and 10 makes VBE of Tr10 cancel a level shift of diode-connected Tr5.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2269679A JPS55116114A (en) | 1979-02-28 | 1979-02-28 | Constant voltage circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2269679A JPS55116114A (en) | 1979-02-28 | 1979-02-28 | Constant voltage circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55116114A true JPS55116114A (en) | 1980-09-06 |
Family
ID=12090027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2269679A Pending JPS55116114A (en) | 1979-02-28 | 1979-02-28 | Constant voltage circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55116114A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57155628A (en) * | 1981-03-23 | 1982-09-25 | Hitachi Ltd | Generating circuit of reference voltage |
| JPS5876918A (en) * | 1981-10-31 | 1983-05-10 | Matsushita Electric Works Ltd | Constant-voltage circuit |
| JPS59225612A (en) * | 1983-05-12 | 1984-12-18 | クセルト セントロ・ステユデイ・エ・ラボラトリ・テレコミニカチオ−ニ・エツセ・ピ−・ア− | Bias circuit for multifunction bipolar integrated circuit |
| JPS61101821A (en) * | 1984-10-24 | 1986-05-20 | Hitachi Ltd | constant voltage circuit |
| US5432432A (en) * | 1992-02-05 | 1995-07-11 | Nec Corporation | Reference voltage generating circuit with temperature stability for use in CMOS integrated circuits |
| US6204724B1 (en) | 1998-03-25 | 2001-03-20 | Nec Corporation | Reference voltage generation circuit providing a stable output voltage |
-
1979
- 1979-02-28 JP JP2269679A patent/JPS55116114A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57155628A (en) * | 1981-03-23 | 1982-09-25 | Hitachi Ltd | Generating circuit of reference voltage |
| JPS5876918A (en) * | 1981-10-31 | 1983-05-10 | Matsushita Electric Works Ltd | Constant-voltage circuit |
| JPH0522247B2 (en) * | 1981-10-31 | 1993-03-29 | Matsushita Electric Works Ltd | |
| JPS59225612A (en) * | 1983-05-12 | 1984-12-18 | クセルト セントロ・ステユデイ・エ・ラボラトリ・テレコミニカチオ−ニ・エツセ・ピ−・ア− | Bias circuit for multifunction bipolar integrated circuit |
| JPS61101821A (en) * | 1984-10-24 | 1986-05-20 | Hitachi Ltd | constant voltage circuit |
| US5432432A (en) * | 1992-02-05 | 1995-07-11 | Nec Corporation | Reference voltage generating circuit with temperature stability for use in CMOS integrated circuits |
| US6204724B1 (en) | 1998-03-25 | 2001-03-20 | Nec Corporation | Reference voltage generation circuit providing a stable output voltage |
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