JPS559231A - Generation circuit of reference voltage - Google Patents

Generation circuit of reference voltage

Info

Publication number
JPS559231A
JPS559231A JP8037578A JP8037578A JPS559231A JP S559231 A JPS559231 A JP S559231A JP 8037578 A JP8037578 A JP 8037578A JP 8037578 A JP8037578 A JP 8037578A JP S559231 A JPS559231 A JP S559231A
Authority
JP
Japan
Prior art keywords
resistor
vdd
voltage
variable
reference voltage
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
JP8037578A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Honda
Kazuhiro Matsuoka
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP8037578A priority Critical patent/JPS559231A/en
Publication of JPS559231A publication Critical patent/JPS559231A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain the variable reference voltage excellent in the temperature characteristics and less in power consumption, by using the field effect transistor.
CONSTITUTION: The source voltage VX of the circuit shown has excellent constant voltage characteristics, in which between the source and gate of the N channel field effect transistor FET the resistor RS is connected, the resistor RL is connected between the gate and the minus of the DC power supply VDD, and the positive of VDD is connected to the drain. That is, the drain current ID of FET is always constant if VDD is more than a given value. A given voltage VX is obtained between the resistors RS and RL, and when the resistor RS is of variable type, VX can easily be variable. This circuit can be used the same as the reference power supply consisting of a series circuit of a resistor and a Zener diode conventionally.
COPYRIGHT: (C)1980,JPO&Japio
JP8037578A 1978-06-30 1978-06-30 Generation circuit of reference voltage Pending JPS559231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8037578A JPS559231A (en) 1978-06-30 1978-06-30 Generation circuit of reference voltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8037578A JPS559231A (en) 1978-06-30 1978-06-30 Generation circuit of reference voltage

Publications (1)

Publication Number Publication Date
JPS559231A true JPS559231A (en) 1980-01-23

Family

ID=13716523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8037578A Pending JPS559231A (en) 1978-06-30 1978-06-30 Generation circuit of reference voltage

Country Status (1)

Country Link
JP (1) JPS559231A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6313193U (en) * 1986-07-11 1988-01-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6313193U (en) * 1986-07-11 1988-01-28
JPH0527984Y2 (en) * 1986-07-11 1993-07-16

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