JPS5582320A - Constant voltage circuit - Google Patents

Constant voltage circuit

Info

Publication number
JPS5582320A
JPS5582320A JP15660978A JP15660978A JPS5582320A JP S5582320 A JPS5582320 A JP S5582320A JP 15660978 A JP15660978 A JP 15660978A JP 15660978 A JP15660978 A JP 15660978A JP S5582320 A JPS5582320 A JP S5582320A
Authority
JP
Japan
Prior art keywords
voltage
resistance
fluctuation
collector
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
Application number
JP15660978A
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 JP15660978A priority Critical patent/JPS5582320A/en
Publication of JPS5582320A publication Critical patent/JPS5582320A/en
Pending legal-status Critical Current

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  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE: To reduce the power source voltage dependency of an output voltage by connecting a diode connection Tr to the emitter of transistor Tr and connecting resistances to the collector and the base and supplying a current from a current Miller circuit to resistances.
CONSTITUTION: Diode connection Tr6 is connected to the emitter of Tr13, and the collector and the base are connected to both ends of resistance 12. The collector of Tr13 is connected to the base of Tr4 of the same polarity, and the collector current determined by the resistance connected to the emitter of Tr4 is supplied to resistance 12 from a current Miller circuit constituted by Tr2 and 3 having the polarity opposite to Tr13. Collector current IC2 of Tr2 is fluctuated due to fluctuation of power source voltage 1, and the voltage between the base and the emitter of Tr13 and 16 generated by this fluctuation can be cancelled by voltage drop of resistance 12. Consequently, when the value of resistance 12 is so selected that change of the voltage at output termlnal 10 may be minimum on a basis of the fluctuation width of the current flowed to Tr13 and 6, fluctuation of the output voltage for fluctuation of the power source voltage can be suppressed, and a stable constant-voltage circuit can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP15660978A 1978-12-18 1978-12-18 Constant voltage circuit Pending JPS5582320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15660978A JPS5582320A (en) 1978-12-18 1978-12-18 Constant voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15660978A JPS5582320A (en) 1978-12-18 1978-12-18 Constant voltage circuit

Publications (1)

Publication Number Publication Date
JPS5582320A true JPS5582320A (en) 1980-06-21

Family

ID=15631470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15660978A Pending JPS5582320A (en) 1978-12-18 1978-12-18 Constant voltage circuit

Country Status (1)

Country Link
JP (1) JPS5582320A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854460A (en) * 1971-11-11 1973-07-31
JPS50343A (en) * 1973-05-07 1975-01-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854460A (en) * 1971-11-11 1973-07-31
JPS50343A (en) * 1973-05-07 1975-01-06

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