GB1326573A - Pulse generators - Google Patents

Pulse generators

Info

Publication number
GB1326573A
GB1326573A GB5150370A GB5150370A GB1326573A GB 1326573 A GB1326573 A GB 1326573A GB 5150370 A GB5150370 A GB 5150370A GB 5150370 A GB5150370 A GB 5150370A GB 1326573 A GB1326573 A GB 1326573A
Authority
GB
United Kingdom
Prior art keywords
loads
switch
pulse generator
intervals
voltage
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
GB5150370A
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs 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 Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Publication of GB1326573A publication Critical patent/GB1326573A/en
Expired 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
    • B60Q1/38—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
    • B60Q1/385—Electronic temporisation with relay amplification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
    • B60Q11/005—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not
    • B60Q11/007—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not the lighting devices indicating change of drive direction
    • 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
    • H03K3/2823—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 transistor of the same conductivity type
    • H03K3/2825—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 transistor of the same conductivity type in an asymmetrical circuit configuration
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/09—Circuit arrangements or apparatus for operating incandescent light sources in which the lamp is fed by pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

1326573 Pulse generators TELEFUNKEN PATENTVERWERTUNGS GmbH 29 Oct 1970 [29 Oct 1969] 51503/70 Addition to 1279159 Heading H3T [Also in Division G4] In a modification of the pulse generator of the parent Specification 1,279,159 having a trigger stage 1 for periodically interrupted operation of a plurality of parallel connected loads such as lamps L 1 , L 2 or L 3 , L 4 , a resistor Lk in the form of an indicating lamp is connected between the loads and the supply voltage in the intervals in operation such that during the intervals in operation a measuring current flows through the loads to cause a volt drop which is supplied to a switch T 3 , T 4 so that if one or more of the loads fail the state of the switch T 3 , T 4 changes during the intervals in operation in comparison with that with intact loads so that a voltage divider R 1 , R 2 alters the charge on the timing capacitor C so as to alter the pulse frequency of the generator. With the switch S L as shown T 1 is on and T 2 is off. Closing switch S L to a or b turns T 1 off and T 2 on so that relay contact S R closes to light the lamps L 1 , L 2 or L 3 , L 4 selected. The timing capacitor C operates to switch T 1 o n and T 2 off releasing contact S R and switching off the load lamps L 1 , L 2 or L 3 , L 4 . Indicating lamp L K lights and the voltage at the emitters of transistors T 3 and T 4 with the loads intact make T 4 on and T 3 off. When one or more loads fail the voltage at the emitters of T 3 , T 4 make T 4 off and T 3 on to alter the time constant of the pulse generator so that the frequency rate of illumination of lamp L K is increased to indicate this failure. A resistor R 8 of relatively high value ensures that the pulse generator operates even on failure of the tell-tale lamp L K . The pulse generator 1 may be in integrated circuit form.
GB5150370A 1969-10-29 1970-10-29 Pulse generators Expired GB1326573A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19691954295 DE1954295C2 (en) 1969-10-29 1969-10-29 Pulse generator
DE1762499 1969-10-29

Publications (1)

Publication Number Publication Date
GB1326573A true GB1326573A (en) 1973-08-15

Family

ID=25755300

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5150370A Expired GB1326573A (en) 1969-10-29 1970-10-29 Pulse generators

Country Status (3)

Country Link
DE (1) DE1954295C2 (en)
FR (1) FR2065578B2 (en)
GB (1) GB1326573A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537081A1 (en) * 1995-10-05 1997-04-10 Happich Gmbh Gebr Headlining for vehicles
US20120265010A1 (en) * 2011-04-12 2012-10-18 Endo Optiks, Inc. Laser Video Endoscope

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1191722B (en) * 1962-09-29 1965-04-22 Bosch Gmbh Robert Astable multivibrator as a flasher for indicator lights

Also Published As

Publication number Publication date
FR2065578B2 (en) 1973-02-02
FR2065578A2 (en) 1971-07-30
DE1954295C2 (en) 1982-07-22
DE1954295A1 (en) 1971-05-06

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees