GB1279159A - Pulse generator - Google Patents

Pulse generator

Info

Publication number
GB1279159A
GB1279159A GB3276269A GB3276269A GB1279159A GB 1279159 A GB1279159 A GB 1279159A GB 3276269 A GB3276269 A GB 3276269A GB 3276269 A GB3276269 A GB 3276269A GB 1279159 A GB1279159 A GB 1279159A
Authority
GB
United Kingdom
Prior art keywords
loads
turn
lamps
switch
during
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
GB3276269A
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 GB1279159A publication Critical patent/GB1279159A/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)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

1279159 Pulse generators TELEFUNKEN PATENTVERWERTUNGS GmbH 27 June 1969 [28 June 1968] 32762/69 Heading H3T [Also in Division G4] In a pulse generator having a trigger stage 1 for periodically interrupted operation of a plurality of parallel connected loads, such as lamps L1, L2 or L3, L4, a resistor R 0 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 load to cause a volt drop which is supplied to a switch T3, T4 and if one or more of the loads fails the state of the switch T3, T4 changes during the intervals in operation in comparison with that with intact loads so that voltage divider R1, R2 alters the charge on the timing capacitor C of the trigger stage 1 so as to alter the pulse frequency of the generator. As shown in a turn indicator system for a vehicle with switch S L in the mid position the transistor T1 is on and T2 is off and relay contacts S R are open. When a turn position a or b is selected the initial voltage drop across R0 causes T2 to turn on, T1 to turn off and relay R closes its contacts S R which lights the lamps L1, L2 or L3, L4 selected. Capacitor C holds T1 off and discharges from a negative condition to a positive voltage via R T until T1 again turns on. This cuts off T2 and opens relay contacts S R . Capacitor C now discharges to its negative charged condition via R7 and R1 so that T2 turns on and T1 turns off and then the above is repeated. During the interval when the load lamps L1, L2 or L3, L4 are off and with intact loads the measuring current via R0 biases T4 on and T3 off. Failure of one or more of the load lamps L1, L2 and L3, L4 causes T4 to turn off and T3 to turn on during the interval in operation. Conduction of T3 connects an additional resistor R2 to alter the time constant and frequency of the trigger stage 1 so that an alarm lamp Lk connected across the switch contacts a, b flashes at a different frequency to that with intact loads to indicate the failure. The trigger stage 1 and indicating stage 2 apart from C, R0, relay R and the lamp loads can be in integrated circuit form. Hazard warning.-All the lamps L1-L4 may be flashed together.
GB3276269A 1969-10-29 1969-06-27 Pulse generator Expired GB1279159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1762499 1969-10-29

Publications (1)

Publication Number Publication Date
GB1279159A true GB1279159A (en) 1972-06-28

Family

ID=5697040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3276269A Expired GB1279159A (en) 1969-10-29 1969-06-27 Pulse generator

Country Status (3)

Country Link
DE (1) DE1762499B1 (en)
FR (1) FR2014415A1 (en)
GB (1) GB1279159A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50107889A (en) * 1974-01-31 1975-08-25

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1436112A (en) * 1972-04-20 1976-05-19 Cav Ltd Direction indicator system for road vehicles
DE2236210C3 (en) * 1972-07-24 1980-07-24 Robert Bosch Gmbh, 7000 Stuttgart Flashing and warning flashers, in particular for motor vehicles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT230774B (en) * 1960-02-19 1963-12-30 Uher & Co Ges Fuer Appbau Oscillating circuit, especially for flashing light systems on motor vehicles or the like.
DE1160496B (en) * 1961-12-29 1964-01-02 Philips Patentverwaltung Astable multivibrator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50107889A (en) * 1974-01-31 1975-08-25
JPS5838339B2 (en) * 1974-01-31 1983-08-22 三菱自動車工業株式会社 Warm-up heat exchanger

Also Published As

Publication number Publication date
FR2014415A1 (en) 1970-04-17
DE1762499B1 (en) 1971-02-11

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Legal Events

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