DE2103726C3 - Schwellspannungs-Verstärker zur Überwachung von Gleichspannungen wechselnder Polarität - Google Patents

Schwellspannungs-Verstärker zur Überwachung von Gleichspannungen wechselnder Polarität

Info

Publication number
DE2103726C3
DE2103726C3 DE19712103726 DE2103726A DE2103726C3 DE 2103726 C3 DE2103726 C3 DE 2103726C3 DE 19712103726 DE19712103726 DE 19712103726 DE 2103726 A DE2103726 A DE 2103726A DE 2103726 C3 DE2103726 C3 DE 2103726C3
Authority
DE
Germany
Prior art keywords
voltage
transistor
transistors
base
amplifier
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
Application number
DE19712103726
Other languages
German (de)
English (en)
Other versions
DE2103726A1 (de
DE2103726B2 (de
Inventor
Guenter 8500 Nuernberg Roppelt
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 Metrawatt GmbH
Original Assignee
Metrawatt 8500 Nuernberg GmbH
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 Metrawatt 8500 Nuernberg GmbH filed Critical Metrawatt 8500 Nuernberg GmbH
Priority to DE19712103726 priority Critical patent/DE2103726C3/de
Priority to AT4072A priority patent/AT320078B/de
Priority to FR7200178A priority patent/FR2124708A5/fr
Priority to GB383072A priority patent/GB1327548A/en
Publication of DE2103726A1 publication Critical patent/DE2103726A1/de
Publication of DE2103726B2 publication Critical patent/DE2103726B2/de
Application granted granted Critical
Publication of DE2103726C3 publication Critical patent/DE2103726C3/de
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K3/00Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/286Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
    • H03K3/2893Bistables with hysteresis, e.g. Schmitt trigger
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/30Modifications for providing a predetermined threshold before switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Amplifiers (AREA)
DE19712103726 1971-01-27 1971-01-27 Schwellspannungs-Verstärker zur Überwachung von Gleichspannungen wechselnder Polarität Expired DE2103726C3 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19712103726 DE2103726C3 (de) 1971-01-27 1971-01-27 Schwellspannungs-Verstärker zur Überwachung von Gleichspannungen wechselnder Polarität
AT4072A AT320078B (de) 1971-01-27 1972-01-04 Schwellspannungs-Verstärker zur Überwachung von Gleichspannungen wechselnder Polarität
FR7200178A FR2124708A5 (enExample) 1971-01-27 1972-01-05
GB383072A GB1327548A (en) 1971-01-27 1972-01-27 Threshold voltage amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712103726 DE2103726C3 (de) 1971-01-27 1971-01-27 Schwellspannungs-Verstärker zur Überwachung von Gleichspannungen wechselnder Polarität

Publications (3)

Publication Number Publication Date
DE2103726A1 DE2103726A1 (de) 1972-08-10
DE2103726B2 DE2103726B2 (de) 1973-07-12
DE2103726C3 true DE2103726C3 (de) 1974-02-07

Family

ID=5797029

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712103726 Expired DE2103726C3 (de) 1971-01-27 1971-01-27 Schwellspannungs-Verstärker zur Überwachung von Gleichspannungen wechselnder Polarität

Country Status (4)

Country Link
AT (1) AT320078B (enExample)
DE (1) DE2103726C3 (enExample)
FR (1) FR2124708A5 (enExample)
GB (1) GB1327548A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2731848A1 (de) * 1977-07-14 1979-02-01 Metrawatt Gmbh Schutzschaltung fuer batteriegespeiste messgeraete

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2731848A1 (de) * 1977-07-14 1979-02-01 Metrawatt Gmbh Schutzschaltung fuer batteriegespeiste messgeraete

Also Published As

Publication number Publication date
DE2103726A1 (de) 1972-08-10
GB1327548A (en) 1973-08-22
AT320078B (de) 1975-01-27
DE2103726B2 (de) 1973-07-12
FR2124708A5 (enExample) 1972-09-22

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8327 Change in the person/name/address of the patent owner

Owner name: ABB METRAWATT GMBH, 8500 NUERNBERG, DE

8339 Ceased/non-payment of the annual fee