JPS5557919A - Voltage-current control circuit - Google Patents

Voltage-current control circuit

Info

Publication number
JPS5557919A
JPS5557919A JP13055178A JP13055178A JPS5557919A JP S5557919 A JPS5557919 A JP S5557919A JP 13055178 A JP13055178 A JP 13055178A JP 13055178 A JP13055178 A JP 13055178A JP S5557919 A JPS5557919 A JP S5557919A
Authority
JP
Japan
Prior art keywords
fet
wfet
voltage
current
currents
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
JP13055178A
Other languages
Japanese (ja)
Inventor
Shuichi Sakai
Shinsuke Iguchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13055178A priority Critical patent/JPS5557919A/en
Publication of JPS5557919A publication Critical patent/JPS5557919A/en
Pending legal-status Critical Current

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  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

PURPOSE: To make it possible to simplify a circuit, to reduce its prime cost, and also to improve reliability, by connecting an insulation gate field effect element in parallel to a control element.
CONSTITUTION: This circuit consists of stabilized power supply Vin, voltage-current control power MOSFETs FET1WFETn, control circuit 4, reference voltage 3, and stabilizing output voltage Vout. If currents ID flowing through FET1 to FETn become unbalanced, namely, when current ID1 through FET1 is greater than those of FET2WFETn, the calorific power of FET1 becomes higher than any other one, and consequently gate-drain voltage VGD of FET1 increases to reduce its drain current under the influence of negative feedback action, so that the current through FET1 will decrease. Since FET1WFET2 have the same effect, unbalance among currents, even if occurring, equalizes automatically currents through FET1WFETn eventually.
COPYRIGHT: (C)1980,JPO&Japio
JP13055178A 1978-10-25 1978-10-25 Voltage-current control circuit Pending JPS5557919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13055178A JPS5557919A (en) 1978-10-25 1978-10-25 Voltage-current control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13055178A JPS5557919A (en) 1978-10-25 1978-10-25 Voltage-current control circuit

Publications (1)

Publication Number Publication Date
JPS5557919A true JPS5557919A (en) 1980-04-30

Family

ID=15036971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13055178A Pending JPS5557919A (en) 1978-10-25 1978-10-25 Voltage-current control circuit

Country Status (1)

Country Link
JP (1) JPS5557919A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60163113A (en) * 1984-02-02 1985-08-26 Seiko Instr & Electronics Ltd Constant voltage circuit for mos integrated circuit
JPS648416A (en) * 1987-07-01 1989-01-12 Diesel Kiki Co Control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60163113A (en) * 1984-02-02 1985-08-26 Seiko Instr & Electronics Ltd Constant voltage circuit for mos integrated circuit
JPS648416A (en) * 1987-07-01 1989-01-12 Diesel Kiki Co Control device

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