JPS6461808A - Reference voltage circuit - Google Patents

Reference voltage circuit

Info

Publication number
JPS6461808A
JPS6461808A JP62219422A JP21942287A JPS6461808A JP S6461808 A JPS6461808 A JP S6461808A JP 62219422 A JP62219422 A JP 62219422A JP 21942287 A JP21942287 A JP 21942287A JP S6461808 A JPS6461808 A JP S6461808A
Authority
JP
Japan
Prior art keywords
point
potential
reference potential
degree equal
threshold 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
JP62219422A
Other languages
Japanese (ja)
Inventor
Yasushige Morita
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
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 filed Critical NEC Corp
Priority to JP62219422A priority Critical patent/JPS6461808A/en
Publication of JPS6461808A publication Critical patent/JPS6461808A/en
Pending legal-status Critical Current

Links

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  • Control Of Electrical Variables (AREA)
  • Dram (AREA)

Abstract

PURPOSE:To obtain a highly accurate reference potential by setting a circuit between a reference potential generating means and an output transistor TR to compensate the threshold value of this TR so that the error caused by the fluctuation of the power supply voltage between the output potential and the reference potential is eliminated. CONSTITUTION:The resistance R1 and R2 are connected in parallel between a power supply terminal 1 and the ground so that an accurate reference potential is produced at a node point N1. A TR Q1 connected to the point N1 produces a potential at a node point N2 which is higher than the potential of the point N1 by a degree equal to the threshold voltage VTH of the TR Q1. In the same way, a TR Q2 connected to the point N1 produces the voltage at a node point N3 which is lower than the potential of the point N1 by a degree equal to the threshold voltage VTP of the TR Q2. Then a potential lower than that of the potential of the point N2 by a degree equal to the threshold voltage VTN a TR Q3 is outputted to an output terminal 2 by the TR Q3 connected to the point N2. Therefore an accurate reference potential RV1 which is free from dependence on the threshold voltages of the TR Q1-Q4 is obtained at the terminal 2 as long as both voltages VTN and VTP have no fluctuation.
JP62219422A 1987-09-01 1987-09-01 Reference voltage circuit Pending JPS6461808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62219422A JPS6461808A (en) 1987-09-01 1987-09-01 Reference voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62219422A JPS6461808A (en) 1987-09-01 1987-09-01 Reference voltage circuit

Publications (1)

Publication Number Publication Date
JPS6461808A true JPS6461808A (en) 1989-03-08

Family

ID=16735142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62219422A Pending JPS6461808A (en) 1987-09-01 1987-09-01 Reference voltage circuit

Country Status (1)

Country Link
JP (1) JPS6461808A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008253040A (en) * 2007-03-30 2008-10-16 Kawamura Electric Inc Structure for installing live part protective cover
JP2010110052A (en) * 2008-10-28 2010-05-13 Panasonic Electric Works Denro Co Ltd Distribution panel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157315A (en) * 1981-03-24 1982-09-28 Nec Corp Intermediate voltage generating circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157315A (en) * 1981-03-24 1982-09-28 Nec Corp Intermediate voltage generating circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008253040A (en) * 2007-03-30 2008-10-16 Kawamura Electric Inc Structure for installing live part protective cover
JP2010110052A (en) * 2008-10-28 2010-05-13 Panasonic Electric Works Denro Co Ltd Distribution panel

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