JPS5539413A - Schmitt trigger circuit - Google Patents

Schmitt trigger circuit

Info

Publication number
JPS5539413A
JPS5539413A JP11172578A JP11172578A JPS5539413A JP S5539413 A JPS5539413 A JP S5539413A JP 11172578 A JP11172578 A JP 11172578A JP 11172578 A JP11172578 A JP 11172578A JP S5539413 A JPS5539413 A JP S5539413A
Authority
JP
Japan
Prior art keywords
inverter
misfet
schmitt trigger
trigger circuit
output
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
JP11172578A
Other languages
Japanese (ja)
Inventor
Kanji Yo
Osamu Yamashiro
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11172578A priority Critical patent/JPS5539413A/en
Priority to CH1621/79A priority patent/CH657712A5/en
Priority to DE2954543A priority patent/DE2954543C2/de
Priority to CA000321955A priority patent/CA1149081A/en
Priority to IT20368/79A priority patent/IT1111987B/en
Priority to FR7904226A priority patent/FR2447036B1/en
Priority to DE19792906527 priority patent/DE2906527A1/en
Priority to NL7901335A priority patent/NL7901335A/en
Priority to GB8119562A priority patent/GB2081458B/en
Priority to GB7907817A priority patent/GB2016801B/en
Priority to GB8119560A priority patent/GB2081015B/en
Priority to GB8119559A priority patent/GB2081014B/en
Priority to GB8119561A priority patent/GB2100540B/en
Publication of JPS5539413A publication Critical patent/JPS5539413A/en
Priority to CA000395811A priority patent/CA1145063A/en
Priority to CA000395810A priority patent/CA1154880A/en
Priority to CA000395813A priority patent/CA1143010A/en
Priority to CA000395812A priority patent/CA1146223A/en
Priority to HK80/84A priority patent/HK8084A/en
Priority to SG417/84A priority patent/SG41784G/en
Priority to SG41684A priority patent/SG41684G/en
Priority to MY1984375A priority patent/MY8400375A/en
Priority to CH1928/85A priority patent/CH672391B5/en
Priority to HK363/85A priority patent/HK36385A/en
Priority to HK364/85A priority patent/HK36485A/en
Priority to HK351/85A priority patent/HK35185A/en
Priority to MY672/85A priority patent/MY8500672A/en
Priority to MY671/85A priority patent/MY8500671A/en
Priority to MY658/85A priority patent/MY8500658A/en
Priority to US07/004,307 priority patent/US5159260A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/003—Modifications for increasing the reliability for protection
    • H03K19/00369—Modifications for compensating variations of temperature, supply voltage or other physical parameters
    • H03K19/00384—Modifications for compensating variations of temperature, supply voltage or other physical parameters in field effect transistor circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
    • H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
    • H03F3/45744—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by offset reduction
    • H03F3/45748—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by offset reduction by using a feedback circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/0175—Coupling arrangements; Interface arrangements
    • H03K19/0185—Coupling arrangements; Interface arrangements using field effect transistors only
    • H03K19/018507—Interface arrangements
    • 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
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0233—Bistable circuits
    • H03K3/02337—Bistables with hysteresis, e.g. Schmitt trigger
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

PURPOSE:To obtain a Schmitt trigger circuit which is affected less by the change of the ambient conditions such as the power voltage and the like as well as the dispersion of the using MISFET's. CONSTITUTION:The Schmitt trigger circuit consists of inverter 1 to which input signal Vi is applied, inverter 2 which uses the output of inveter 1 as its input to form output Vo and MISFETT3 which is provided between the earth and the input terminal of inverter 2 to be controlled by output Vo. In such constitution, a selection is given to the threshold voltage of one side (T2) among the MISFET's forming inverter 1 of the first step with a higher amount equivalent to the voltage based on the Fermi level difference than the threshold voltage of the MOSFET featuring the same conducting channel of the other side. As a result, nearly a constant width of the hysteresis curve can be secured for the circuit irrespective of the change of various ambient conditions or the dispersion of the using MISFET's.
JP11172578A 1978-03-08 1978-09-13 Schmitt trigger circuit Pending JPS5539413A (en)

Priority Applications (29)

Application Number Priority Date Filing Date Title
JP11172578A JPS5539413A (en) 1978-09-13 1978-09-13 Schmitt trigger circuit
CH1621/79A CH657712A5 (en) 1978-03-08 1979-02-19 REFERENCE VOLTAGE GENERATOR.
DE2954543A DE2954543C2 (en) 1978-03-08 1979-02-20
CA000321955A CA1149081A (en) 1978-03-08 1979-02-20 Reference voltage generator device
IT20368/79A IT1111987B (en) 1978-03-08 1979-02-20 REFERENCE VOLTAGE GENERATOR DEVICE
FR7904226A FR2447036B1 (en) 1978-03-08 1979-02-20 REFERENCE VOLTAGE GENERATOR
DE19792906527 DE2906527A1 (en) 1978-03-08 1979-02-20 REFERENCE VOLTAGE GENERATOR
NL7901335A NL7901335A (en) 1978-03-08 1979-02-20 GENERATOR FOR A REFERENCE VOLTAGE.
GB8119562A GB2081458B (en) 1978-03-08 1979-03-06 Voltage comparitors
GB7907817A GB2016801B (en) 1978-03-08 1979-03-06 Referenc voltage generating device
GB8119560A GB2081015B (en) 1978-03-08 1979-03-06 Improvements in the manufacture of semiconductor devices
GB8119559A GB2081014B (en) 1978-03-08 1979-03-06 Improvements in the manufacture of semiconductor devices
GB8119561A GB2100540B (en) 1978-03-08 1979-03-06 Reference voltage generators
CA000395812A CA1146223A (en) 1978-03-08 1982-02-08 Battery checker
CA000395810A CA1154880A (en) 1978-03-08 1982-02-08 Reference voltage generator device
CA000395811A CA1145063A (en) 1978-03-08 1982-02-08 Reference voltage generator device
CA000395813A CA1143010A (en) 1978-03-08 1982-02-08 Reference voltage generator device
HK80/84A HK8084A (en) 1978-03-08 1984-01-24 A battery checker
SG417/84A SG41784G (en) 1978-03-08 1984-06-04 Reference voltage generating device
SG41684A SG41684G (en) 1978-03-08 1984-06-04 Improvements in the manufacture of a semiconductor device
MY1984375A MY8400375A (en) 1978-03-08 1984-12-31 A battery checker
CH1928/85A CH672391B5 (en) 1978-03-08 1985-02-19 REFERENCE VOLTAGE GENERATOR.
HK351/85A HK35185A (en) 1978-03-08 1985-05-09 Reference voltage generating device
HK363/85A HK36385A (en) 1978-03-08 1985-05-09 Improvements in the manufacture of a semiconductor device
HK364/85A HK36485A (en) 1978-03-08 1985-05-09 Reference voltage generating device
MY672/85A MY8500672A (en) 1978-03-08 1985-12-30 Reference voltage generating device
MY671/85A MY8500671A (en) 1978-03-08 1985-12-30 Reference voltage generating device
MY658/85A MY8500658A (en) 1978-03-08 1985-12-30 Reference voltage generating device
US07/004,307 US5159260A (en) 1978-03-08 1987-01-07 Reference voltage generator device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11172578A JPS5539413A (en) 1978-09-13 1978-09-13 Schmitt trigger circuit

Publications (1)

Publication Number Publication Date
JPS5539413A true JPS5539413A (en) 1980-03-19

Family

ID=14568576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11172578A Pending JPS5539413A (en) 1978-03-08 1978-09-13 Schmitt trigger circuit

Country Status (1)

Country Link
JP (1) JPS5539413A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57129534A (en) * 1981-02-04 1982-08-11 Nec Corp Hysteresis circuit
US4369381A (en) * 1979-07-19 1983-01-18 Fujitsu Limited CMOS Schmitt-trigger circuit
JPS604326A (en) * 1983-06-23 1985-01-10 Nec Corp Hysteresis circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4369381A (en) * 1979-07-19 1983-01-18 Fujitsu Limited CMOS Schmitt-trigger circuit
JPS57129534A (en) * 1981-02-04 1982-08-11 Nec Corp Hysteresis circuit
JPS604326A (en) * 1983-06-23 1985-01-10 Nec Corp Hysteresis circuit
JPH0440888B2 (en) * 1983-06-23 1992-07-06 Nippon Electric Co

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