JPS567124A - Constant voltage device - Google Patents
Constant voltage deviceInfo
- Publication number
- JPS567124A JPS567124A JP8307379A JP8307379A JPS567124A JP S567124 A JPS567124 A JP S567124A JP 8307379 A JP8307379 A JP 8307379A JP 8307379 A JP8307379 A JP 8307379A JP S567124 A JPS567124 A JP S567124A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- base
- collector
- emitter
- punch
- 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 constant voltage by giving the backward bias to the junction of one side of the bipolar transistor and then securing the extension of the depletion layer up to the entire width of the base by the nonstabilized voltage applied between the emitter and the collector to cause the punch through.
CONSTITUTION: Nonstabilized voltage V which gives the backward bias to the base/emitter is applied between the collector and the emitter of the pnp bipolar transistor; while voltage VB which gives the backward bias to the base-collector junction is applied between the base and the collector. Now if base voltage VB is set constant with variation given to collector-emitter voltage VCE, the sudden rise is given to collector current IC with collector-emitter voltage VCE. This is due to the fact that the backward bias voltage of the base-emitter junction increases as voltage VCE increases. And thus the depletion layer extends into the base region and then to the entire width of the base finally, and accordingly the punch through is caused between the collector and the emitter. As a result, the punch through voltage according to base voltage VB can be obtained at output V0.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8307379A JPS567124A (en) | 1979-06-29 | 1979-06-29 | Constant voltage device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8307379A JPS567124A (en) | 1979-06-29 | 1979-06-29 | Constant voltage device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS567124A true JPS567124A (en) | 1981-01-24 |
Family
ID=13791994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8307379A Pending JPS567124A (en) | 1979-06-29 | 1979-06-29 | Constant voltage device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS567124A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60134117A (en) * | 1983-12-22 | 1985-07-17 | N Koa Kk | Process of preventing back fire in gas burner |
-
1979
- 1979-06-29 JP JP8307379A patent/JPS567124A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60134117A (en) * | 1983-12-22 | 1985-07-17 | N Koa Kk | Process of preventing back fire in gas burner |
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