FR2252706A1 - Circuit for logic coupling of alternating type input signals - has transistor in blocking oscillator doped such that input polarity is opposite to carriers - Google Patents

Circuit for logic coupling of alternating type input signals - has transistor in blocking oscillator doped such that input polarity is opposite to carriers

Info

Publication number
FR2252706A1
FR2252706A1 FR7438469A FR7438469A FR2252706A1 FR 2252706 A1 FR2252706 A1 FR 2252706A1 FR 7438469 A FR7438469 A FR 7438469A FR 7438469 A FR7438469 A FR 7438469A FR 2252706 A1 FR2252706 A1 FR 2252706A1
Authority
FR
France
Prior art keywords
transistor
circuit
input signals
blocking oscillator
oscillator
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.)
Withdrawn
Application number
FR7438469A
Other languages
French (fr)
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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
Priority claimed from DE19732359125 external-priority patent/DE2359125C3/en
Priority claimed from DE19742450122 external-priority patent/DE2450122C2/en
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2252706A1 publication Critical patent/FR2252706A1/en
Withdrawn legal-status Critical Current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
    • H03K19/007—Fail-safe circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Amplifiers (AREA)

Abstract

Circuit which prevents error in a logic connection of alternating voltage type input signals to a similar type output signal. The input signals are fed to separate input transformers (1, 2) with rectifier circuits (3, 4) in the secondaries. The rectified signals are used to drive a transistorised blocking oscillator with feedback transformer (6). The pulse voltages of the blocking oscillator are fed to an amplifier stage (7) in the secondary of the feedback transformer. The doping of the transistor (5) used in the oscillator is such that the battery voltage generating the input signal will always have the opposite polarity required to produce the drive for the oscillator.
FR7438469A 1973-11-24 1974-11-22 Circuit for logic coupling of alternating type input signals - has transistor in blocking oscillator doped such that input polarity is opposite to carriers Withdrawn FR2252706A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732359125 DE2359125C3 (en) 1973-11-24 Circuit arrangement for the logical combination of AC input signals
DE19742450122 DE2450122C2 (en) 1974-10-19 1974-10-19 Circuit arrangement for the logical combination of AC input signals

Publications (1)

Publication Number Publication Date
FR2252706A1 true FR2252706A1 (en) 1975-06-20

Family

ID=25766165

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438469A Withdrawn FR2252706A1 (en) 1973-11-24 1974-11-22 Circuit for logic coupling of alternating type input signals - has transistor in blocking oscillator doped such that input polarity is opposite to carriers

Country Status (2)

Country Link
FR (1) FR2252706A1 (en)
NL (1) NL7415262A (en)

Also Published As

Publication number Publication date
NL7415262A (en) 1975-05-27

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Legal Events

Date Code Title Description
ST Notification of lapse