JPS56153417A - Constant voltage circuit - Google Patents
Constant voltage circuitInfo
- Publication number
- JPS56153417A JPS56153417A JP5740280A JP5740280A JPS56153417A JP S56153417 A JPS56153417 A JP S56153417A JP 5740280 A JP5740280 A JP 5740280A JP 5740280 A JP5740280 A JP 5740280A JP S56153417 A JPS56153417 A JP S56153417A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- voltage
- coefft
- collector
- temp
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/30—Regulators using the difference between the base-emitter voltages of two bipolar transistors operating at different current densities
Abstract
PURPOSE:To obtain the low-noise reference output having a desired temp. coefft. by constituting a circuit which can independently set the voltage of the reference voltage output and temp. coefft. by using IC elements for a constant voltage source used for semiconductor IC circuits. CONSTITUTION:A power source terminal 11 is coupled via a current supply circuit 12 to a reference voltage output terminal 13, and is connected from the terminal 13 to one end of a resistance (R)14 and the collector of a transistor (TR)15. The other end of R14 is commonly connected to one end of R16, 18, 21, and the other end of R16 is connected to the collector and base of TR17 and also to the base of TR19. The other end of R18 is connected to the collector of TR19 and the base of TR15. The other end of R21 is connected to a ground terminal 22, and the emitter of TRs 17, 15 are connected to the terminal 22 and the emitter of TR19 via R20. From such constitution, the voltage VREG of the terminal 13 is expressed like the equation, and the voltage and temp. coefft. are set independently. In the equation, N is the area ratio of TRs 17, 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5740280A JPS56153417A (en) | 1980-04-30 | 1980-04-30 | Constant voltage circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5740280A JPS56153417A (en) | 1980-04-30 | 1980-04-30 | Constant voltage circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56153417A true JPS56153417A (en) | 1981-11-27 |
Family
ID=13054638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5740280A Pending JPS56153417A (en) | 1980-04-30 | 1980-04-30 | Constant voltage circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56153417A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS609210A (en) * | 1983-06-15 | 1985-01-18 | テレフンケン・エレクトロニク・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Band gap circuit |
| US4733160A (en) * | 1985-09-17 | 1988-03-22 | Siemens Aktiengesellschaft | Circuit for generating a reference voltage having a predetermined temperature drift |
-
1980
- 1980-04-30 JP JP5740280A patent/JPS56153417A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS609210A (en) * | 1983-06-15 | 1985-01-18 | テレフンケン・エレクトロニク・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Band gap circuit |
| US4644257A (en) * | 1983-06-15 | 1987-02-17 | Telefunken Electronic Gmbh | Band gap circuit |
| US4733160A (en) * | 1985-09-17 | 1988-03-22 | Siemens Aktiengesellschaft | Circuit for generating a reference voltage having a predetermined temperature drift |
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