DE3740138C2 - - Google Patents

Info

Publication number
DE3740138C2
DE3740138C2 DE19873740138 DE3740138A DE3740138C2 DE 3740138 C2 DE3740138 C2 DE 3740138C2 DE 19873740138 DE19873740138 DE 19873740138 DE 3740138 A DE3740138 A DE 3740138A DE 3740138 C2 DE3740138 C2 DE 3740138C2
Authority
DE
Germany
Prior art keywords
resistor
diode
inverting input
differential amplifier
emitter
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.)
Expired - Lifetime
Application number
DE19873740138
Other languages
German (de)
English (en)
Other versions
DE3740138A1 (de
Inventor
Karlheinz 6115 Muenster De Theis
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.)
ABB Training Center GmbH and Co KG
Original Assignee
Hartmann and Braun AG
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 Hartmann and Braun AG filed Critical Hartmann and Braun AG
Priority to DE19873740138 priority Critical patent/DE3740138A1/de
Publication of DE3740138A1 publication Critical patent/DE3740138A1/de
Application granted granted Critical
Publication of DE3740138C2 publication Critical patent/DE3740138C2/de
Granted legal-status Critical Current

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
    • H03K3/023—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
    • 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)
  • Manipulation Of Pulses (AREA)
  • Measurement Of Current Or Voltage (AREA)
DE19873740138 1987-11-26 1987-11-26 Elektronischer komparator Granted DE3740138A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873740138 DE3740138A1 (de) 1987-11-26 1987-11-26 Elektronischer komparator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873740138 DE3740138A1 (de) 1987-11-26 1987-11-26 Elektronischer komparator

Publications (2)

Publication Number Publication Date
DE3740138A1 DE3740138A1 (de) 1989-06-08
DE3740138C2 true DE3740138C2 (en:Method) 1990-08-23

Family

ID=6341358

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873740138 Granted DE3740138A1 (de) 1987-11-26 1987-11-26 Elektronischer komparator

Country Status (1)

Country Link
DE (1) DE3740138A1 (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9411425U1 (de) * 1994-07-14 1994-09-08 Christian Schwaiger Kg, 90579 Langenzenn Prüfgerät für Antennenanlagen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8068322B2 (en) * 2008-07-31 2011-11-29 Honeywell International Inc. Electronic circuit breaker apparatus and systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3146958C1 (de) * 1981-11-26 1983-04-14 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Erzeugung einer Referenzspannung bei einem Komparator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9411425U1 (de) * 1994-07-14 1994-09-08 Christian Schwaiger Kg, 90579 Langenzenn Prüfgerät für Antennenanlagen

Also Published As

Publication number Publication date
DE3740138A1 (de) 1989-06-08

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8320 Willingness to grant licenses declared (paragraph 23)
8339 Ceased/non-payment of the annual fee