FR2239054A1 - Transistor electronic multivibrator - operates on function of environment sensing element and reset is by manually operated ribbon - Google Patents

Transistor electronic multivibrator - operates on function of environment sensing element and reset is by manually operated ribbon

Info

Publication number
FR2239054A1
FR2239054A1 FR7328109A FR7328109A FR2239054A1 FR 2239054 A1 FR2239054 A1 FR 2239054A1 FR 7328109 A FR7328109 A FR 7328109A FR 7328109 A FR7328109 A FR 7328109A FR 2239054 A1 FR2239054 A1 FR 2239054A1
Authority
FR
France
Prior art keywords
reset
operates
function
sensing element
manually operated
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.)
Granted
Application number
FR7328109A
Other languages
French (fr)
Other versions
FR2239054B3 (en
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.)
RICHARD RAPP ROBERT
Original Assignee
RICHARD RAPP ROBERT
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 RICHARD RAPP ROBERT filed Critical RICHARD RAPP ROBERT
Priority to FR7328109A priority Critical patent/FR2239054A1/en
Publication of FR2239054A1 publication Critical patent/FR2239054A1/en
Application granted granted Critical
Publication of FR2239054B3 publication Critical patent/FR2239054B3/fr
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
    • H03K3/26—Generators 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
    • H03K3/28—Generators 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
    • H03K3/281—Generators 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
    • H03K3/282—Generators 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 astable
    • H03K3/2826—Generators 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 astable using two active transistors of the complementary type
    • H03K3/2828—Generators 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 astable using two active transistors of the complementary type in an asymmetrical circuit configuration
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
    • G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

Bistable transistor multivibrator can use either a linear or non-linear amplifier the impedance of which can be switched by positive feedback derived from a capacitor loop between the amplifier input and output points. The oscillator may be triggered by a light sensitive resistor, magneto-resistance or a positive or negative temperature coefficient element. Operation of switching from conducting to non-conducting state of the second transistor is indicated by a lamp in the collector circuit. Resetting of the oscillator is accomplished using a thin insulating ribbon which is hand controlled, moving a conducting strip across appropriate contacts. An arrangement for preventing the break operation can be included.
FR7328109A 1973-07-25 1973-07-25 Transistor electronic multivibrator - operates on function of environment sensing element and reset is by manually operated ribbon Granted FR2239054A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7328109A FR2239054A1 (en) 1973-07-25 1973-07-25 Transistor electronic multivibrator - operates on function of environment sensing element and reset is by manually operated ribbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7328109A FR2239054A1 (en) 1973-07-25 1973-07-25 Transistor electronic multivibrator - operates on function of environment sensing element and reset is by manually operated ribbon

Publications (2)

Publication Number Publication Date
FR2239054A1 true FR2239054A1 (en) 1975-02-21
FR2239054B3 FR2239054B3 (en) 1976-07-16

Family

ID=9123437

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7328109A Granted FR2239054A1 (en) 1973-07-25 1973-07-25 Transistor electronic multivibrator - operates on function of environment sensing element and reset is by manually operated ribbon

Country Status (1)

Country Link
FR (1) FR2239054A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0595460A1 (en) * 1992-09-22 1994-05-04 KOKUSAI DISPLAY KOGYO Co. Ltd. Self-starting swinging apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0595460A1 (en) * 1992-09-22 1994-05-04 KOKUSAI DISPLAY KOGYO Co. Ltd. Self-starting swinging apparatus
US5483131A (en) * 1992-09-22 1996-01-09 Kokusai Display Kogyo Co., Ltd. Self-starting swinging apparatus

Also Published As

Publication number Publication date
FR2239054B3 (en) 1976-07-16

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Legal Events

Date Code Title Description
ST Notification of lapse