JPS55143457A - Detecting circuit for battery voltage of timer - Google Patents

Detecting circuit for battery voltage of timer

Info

Publication number
JPS55143457A
JPS55143457A JP11616978A JP11616978A JPS55143457A JP S55143457 A JPS55143457 A JP S55143457A JP 11616978 A JP11616978 A JP 11616978A JP 11616978 A JP11616978 A JP 11616978A JP S55143457 A JPS55143457 A JP S55143457A
Authority
JP
Japan
Prior art keywords
difference
reference voltage
transistor
point
threshold level
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
JP11616978A
Other languages
Japanese (ja)
Inventor
Shinji Morozumi
Tatsuji Asakawa
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP11616978A priority Critical patent/JPS55143457A/en
Priority to CH846479A priority patent/CH651999GA3/en
Publication of JPS55143457A publication Critical patent/JPS55143457A/en
Pending legal-status Critical Current

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  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE: To minimize dispersion by a manufacture process by setting the difference of a constant work function by a substance to a reference voltage.
CONSTITUTION: Transistor 3 and transistor 4 are paired differing in threshold level and the difference in threshold level is output to point A. Transistor 5 is switched by clock ϕ to provide sampling operation. Resistances 6 and 7 divide a reference voltage so that a potential at point B will be a desired power voltage equal to a potential at point A as the reference voltage output. The difference in threshold level between transistors 3 and 4, i.e., the reference voltage, is obtained according to the work function difference between the material of a gate electrode and a silicon substrate.
COPYRIGHT: (C)1980,JPO&Japio
JP11616978A 1978-09-20 1978-09-20 Detecting circuit for battery voltage of timer Pending JPS55143457A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11616978A JPS55143457A (en) 1978-09-20 1978-09-20 Detecting circuit for battery voltage of timer
CH846479A CH651999GA3 (en) 1978-09-20 1979-09-19 Electronic reference-voltage generator circuit, voltage detector device employing this circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11616978A JPS55143457A (en) 1978-09-20 1978-09-20 Detecting circuit for battery voltage of timer

Publications (1)

Publication Number Publication Date
JPS55143457A true JPS55143457A (en) 1980-11-08

Family

ID=14680490

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11616978A Pending JPS55143457A (en) 1978-09-20 1978-09-20 Detecting circuit for battery voltage of timer

Country Status (1)

Country Link
JP (1) JPS55143457A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58196464A (en) * 1982-05-11 1983-11-15 Matsushita Electric Ind Co Ltd Voltage drop detection circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58196464A (en) * 1982-05-11 1983-11-15 Matsushita Electric Ind Co Ltd Voltage drop detection circuit

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