JPS567124A - Constant voltage device - Google Patents

Constant voltage device

Info

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
Application number
JP8307379A
Other languages
Japanese (ja)
Inventor
Koichi Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8307379A priority Critical patent/JPS567124A/en
Publication of JPS567124A publication Critical patent/JPS567124A/en
Pending legal-status Critical Current

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  • 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
JP8307379A 1979-06-29 1979-06-29 Constant voltage device Pending JPS567124A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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