WO2003026128A3 - Hysteresis comparator - Google Patents

Hysteresis comparator Download PDF

Info

Publication number
WO2003026128A3
WO2003026128A3 PCT/IB2002/003734 IB0203734W WO03026128A3 WO 2003026128 A3 WO2003026128 A3 WO 2003026128A3 IB 0203734 W IB0203734 W IB 0203734W WO 03026128 A3 WO03026128 A3 WO 03026128A3
Authority
WO
WIPO (PCT)
Prior art keywords
threshold voltage
comparator
hysteresis comparator
voltage
inverting output
Prior art date
Application number
PCT/IB2002/003734
Other languages
French (fr)
Other versions
WO2003026128A2 (en
Inventor
Walter Einfeldt
Original Assignee
Koninkl Philips Electronics Nv
Philips Corp Intellectual Pty
Walter Einfeldt
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 Koninkl Philips Electronics Nv, Philips Corp Intellectual Pty, Walter Einfeldt filed Critical Koninkl Philips Electronics Nv
Priority to JP2003529624A priority Critical patent/JP2005503706A/en
Priority to EP02767779A priority patent/EP1430601A2/en
Publication of WO2003026128A2 publication Critical patent/WO2003026128A2/en
Publication of WO2003026128A3 publication Critical patent/WO2003026128A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
    • H03K3/356—Bistable circuits
    • H03K3/356104—Bistable circuits using complementary field-effect transistors
    • H03K3/356113—Bistable circuits using complementary field-effect transistors using additional transistors in the input circuit
    • H03K3/35613—Bistable circuits using complementary field-effect transistors using additional transistors in the input circuit the input circuit having a differential configuration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
    • H03K3/356—Bistable circuits
    • H03K3/3565—Bistables with hysteresis, e.g. Schmitt trigger
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
    • H03K5/2472—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude using field effect transistors
    • H03K5/2481—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude using field effect transistors with at least one differential stage

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manipulation Of Pulses (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

To provide a hysteresis comparator with a reference voltage input and a difference voltage input together with an inverting output and a non-inverting output, wherein a switching threshold of the comparator may be predetermined by an upper threshold voltage and a lower threshold voltage with regard to the reference voltage, which comparator allows flexible adaptation in simple manner to various applications, provision is made for the upper threshold voltage and the lower threshold voltage to be capable of being set independently of one another.
PCT/IB2002/003734 2001-09-15 2002-09-13 Hysteresis comparator WO2003026128A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003529624A JP2005503706A (en) 2001-09-15 2002-09-13 comparator
EP02767779A EP1430601A2 (en) 2001-09-15 2002-09-13 Hysteresis comparator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10145656.5 2001-09-15
DE2001145656 DE10145656A1 (en) 2001-09-15 2001-09-15 comparator

Publications (2)

Publication Number Publication Date
WO2003026128A2 WO2003026128A2 (en) 2003-03-27
WO2003026128A3 true WO2003026128A3 (en) 2003-12-18

Family

ID=7699240

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/003734 WO2003026128A2 (en) 2001-09-15 2002-09-13 Hysteresis comparator

Country Status (4)

Country Link
EP (1) EP1430601A2 (en)
JP (1) JP2005503706A (en)
DE (1) DE10145656A1 (en)
WO (1) WO2003026128A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015231112A (en) * 2014-06-04 2015-12-21 富士通株式会社 Hysteresis characteristic detection method for comparison circuit, and semiconductor device

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61224513A (en) * 1985-03-28 1986-10-06 Toshiba Corp Voltage comparator having hysteresis
US5039888A (en) * 1989-11-14 1991-08-13 Harris Corporation Method and circuit arrangement for providing programmable hysteresis to a differential comparator
EP0452967A2 (en) * 1990-04-21 1991-10-23 Kabushiki Kaisha Toshiba Hysteresis comparator
JPH055653A (en) * 1991-06-28 1993-01-14 Sharp Corp Photodetector
JPH05259841A (en) * 1992-03-16 1993-10-08 Toshiba Corp Voltage comparator circuit
US5264740A (en) * 1991-05-17 1993-11-23 Advanced Micro Devices, Inc. Programmable voltage hysteresis on a voltage comparator
US5369319A (en) * 1992-12-21 1994-11-29 Delco Electronics Corporation Comparator having temperature and process compensated hysteresis characteristic
US5999028A (en) * 1997-12-22 1999-12-07 Hewlett-Packard Company Differential circuits with adjustable propagation timing
US6229346B1 (en) * 1999-02-22 2001-05-08 Stmicroelectronics S.R.L. High frequency supply compatible hysteresis comparator with low dynamics differential input
JP2001148621A (en) * 1999-11-19 2001-05-29 Nec Corp Hysteresis comparator

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61224513A (en) * 1985-03-28 1986-10-06 Toshiba Corp Voltage comparator having hysteresis
US5039888A (en) * 1989-11-14 1991-08-13 Harris Corporation Method and circuit arrangement for providing programmable hysteresis to a differential comparator
EP0452967A2 (en) * 1990-04-21 1991-10-23 Kabushiki Kaisha Toshiba Hysteresis comparator
US5264740A (en) * 1991-05-17 1993-11-23 Advanced Micro Devices, Inc. Programmable voltage hysteresis on a voltage comparator
JPH055653A (en) * 1991-06-28 1993-01-14 Sharp Corp Photodetector
JPH05259841A (en) * 1992-03-16 1993-10-08 Toshiba Corp Voltage comparator circuit
US5369319A (en) * 1992-12-21 1994-11-29 Delco Electronics Corporation Comparator having temperature and process compensated hysteresis characteristic
US5999028A (en) * 1997-12-22 1999-12-07 Hewlett-Packard Company Differential circuits with adjustable propagation timing
US6229346B1 (en) * 1999-02-22 2001-05-08 Stmicroelectronics S.R.L. High frequency supply compatible hysteresis comparator with low dynamics differential input
JP2001148621A (en) * 1999-11-19 2001-05-29 Nec Corp Hysteresis comparator

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 065 (E - 484) 27 February 1987 (1987-02-27) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 265 (P - 1542) 24 May 1993 (1993-05-24) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 026 (E - 1491) 14 January 1994 (1994-01-14) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 22 9 March 2001 (2001-03-09) *

Also Published As

Publication number Publication date
DE10145656A1 (en) 2003-04-03
EP1430601A2 (en) 2004-06-23
WO2003026128A2 (en) 2003-03-27
JP2005503706A (en) 2005-02-03

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