JPS55153016A - Bias circuit - Google Patents

Bias circuit

Info

Publication number
JPS55153016A
JPS55153016A JP6011979A JP6011979A JPS55153016A JP S55153016 A JPS55153016 A JP S55153016A JP 6011979 A JP6011979 A JP 6011979A JP 6011979 A JP6011979 A JP 6011979A JP S55153016 A JPS55153016 A JP S55153016A
Authority
JP
Japan
Prior art keywords
collector
current
early effect
terminal
power source
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
JP6011979A
Other languages
Japanese (ja)
Inventor
Masaharu Sato
Takeshi Kimura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6011979A priority Critical patent/JPS55153016A/en
Publication of JPS55153016A publication Critical patent/JPS55153016A/en
Pending legal-status Critical Current

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  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE: To hold the output voltage of a unit constant by holding nearly constant the collector current of one transistor constituting a current Miller circuit to fluctuations of a power voltage while connecting a resistance of a specific value for the Early effect to one terminal of an electric power source.
CONSTITUTION: Both PNP transistor (TRs) 2 and 3 whose emitters are connected to electric power source 1 constitute a current Miller circuit and TRs 5 and 6 connected to the collector of the secondary TR2 of this circuit are grounded being connected forward in series. Next, the emitter of NPNTR4 whose collector is connected to the collector of TR3 is grounded via resistance 8 and connected to the emitter of TR13 whose collector connects with one terminal of resistance 12, having a specific value for the Early effect, with the other terminal connected to electric power source 1. In case that the power voltage varies by ΔVcc, collector current Ic2 is held nearly constant by canceling with current variation by the Early effect. Consequently, a constant voltage stable to the broad range variation of the power voltage can be obtained even by using PNPTR with the large Early effect.
COPYRIGHT: (C)1980,JPO&Japio
JP6011979A 1979-05-15 1979-05-15 Bias circuit Pending JPS55153016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6011979A JPS55153016A (en) 1979-05-15 1979-05-15 Bias circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6011979A JPS55153016A (en) 1979-05-15 1979-05-15 Bias circuit

Publications (1)

Publication Number Publication Date
JPS55153016A true JPS55153016A (en) 1980-11-28

Family

ID=13132908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6011979A Pending JPS55153016A (en) 1979-05-15 1979-05-15 Bias circuit

Country Status (1)

Country Link
JP (1) JPS55153016A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0681013U (en) * 1981-12-28 1994-11-15 レイセオン・カンパニー Current source circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0681013U (en) * 1981-12-28 1994-11-15 レイセオン・カンパニー Current source circuit

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