CA2063522A1 - Voltage detector for producing output signal without transient error level - Google Patents

Voltage detector for producing output signal without transient error level

Info

Publication number
CA2063522A1
CA2063522A1 CA2063522A CA2063522A CA2063522A1 CA 2063522 A1 CA2063522 A1 CA 2063522A1 CA 2063522 A CA2063522 A CA 2063522A CA 2063522 A CA2063522 A CA 2063522A CA 2063522 A1 CA2063522 A1 CA 2063522A1
Authority
CA
Canada
Prior art keywords
voltage level
output signal
producing
voltage
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.)
Granted
Application number
CA2063522A
Other languages
French (fr)
Other versions
CA2063522C (en
Inventor
Yoshinobu Ohshima
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
Yoshinobu Ohshima
Nec Corporation
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 Yoshinobu Ohshima, Nec Corporation filed Critical Yoshinobu Ohshima
Publication of CA2063522A1 publication Critical patent/CA2063522A1/en
Application granted granted Critical
Publication of CA2063522C publication Critical patent/CA2063522C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Manipulation Of Pulses (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

A voltage detector monitors a power voltage level to see whether or not the power voltage level exceeds a predetermined voltage level, and comprises a reference voltage producing circuit for producing a reference voltage level proportional to the predetermined voltage level, a monitored voltage producing circuit for producing a monitored voltage level proportional to the power voltage level, a voltage comparator operative to compare the monitored voltage level with the reference voltage level for producing an output signal indicative of status of the power voltage level, and a combination of a clamping resistor and a clamping resistor provided in association with the voltage comparator for forcibly fix the output signal to an inactive level until the power voltage level is sufficiently increased so that the voltage comparator never produces any error output signal.
CA002063522A 1991-03-20 1992-03-19 Voltage detector for producing output signal without transient error level Expired - Fee Related CA2063522C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3055306A JPH04290966A (en) 1991-03-20 1991-03-20 Low supply voltage sensing circuit
JP3-55306 1991-03-20

Publications (2)

Publication Number Publication Date
CA2063522A1 true CA2063522A1 (en) 1992-09-21
CA2063522C CA2063522C (en) 1998-01-27

Family

ID=12994887

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002063522A Expired - Fee Related CA2063522C (en) 1991-03-20 1992-03-19 Voltage detector for producing output signal without transient error level

Country Status (3)

Country Link
US (1) US5268595A (en)
JP (1) JPH04290966A (en)
CA (1) CA2063522C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5570060A (en) * 1995-03-28 1996-10-29 Sgs-Thomson Microelectronics, Inc. Circuit for limiting the current in a power transistor
KR100234701B1 (en) * 1996-12-05 1999-12-15 김영환 Back bias voltage level detector
US6081436A (en) * 1998-08-12 2000-06-27 Lucent Technologies, Inc. Multi-output power supply voltage sensing
DE10297335T5 (en) * 2002-09-11 2004-11-18 Mitsubishi Denki K.K. Voltage detection circuit and the same internal voltage generation circuit using the same
JP4245904B2 (en) * 2002-11-14 2009-04-02 セイコーインスツル株式会社 Voltage detection circuit
DE10339047B4 (en) * 2003-08-25 2006-10-26 Infineon Technologies Ag Driver device, in particular for a semiconductor device, and method for operating a driver device
CN109217262B (en) * 2018-10-22 2021-10-26 国家电网公司东北分部 MOS tube driving undervoltage protection circuit in high-power switching amplifier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474258A (en) * 1967-03-03 1969-10-21 Weston Instruments Inc Solid state relays
US3581218A (en) * 1968-08-26 1971-05-25 Bill J Ransdell Smoothly acting signal comparator
NL7415421A (en) * 1973-12-04 1975-06-06 Siemens Ag CIRCUIT FOR COMPARING VOLTAGES.
US4634902A (en) * 1982-11-17 1987-01-06 Clarion Co., Ltd. Circuit arrangement capable of adjusting a threshold level of a differential transistor circuit
US5119016A (en) * 1991-03-29 1992-06-02 At&T Bell Laboratories Clamp limiter circuit with precise clamping level control

Also Published As

Publication number Publication date
US5268595A (en) 1993-12-07
CA2063522C (en) 1998-01-27
JPH04290966A (en) 1992-10-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed