GB1089751A - Improvements in multivibrators - Google Patents

Improvements in multivibrators

Info

Publication number
GB1089751A
GB1089751A GB5150164A GB5150164A GB1089751A GB 1089751 A GB1089751 A GB 1089751A GB 5150164 A GB5150164 A GB 5150164A GB 5150164 A GB5150164 A GB 5150164A GB 1089751 A GB1089751 A GB 1089751A
Authority
GB
United Kingdom
Prior art keywords
diode
pulses
duration
circuits
engine
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
GB5150164A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1089751A publication Critical patent/GB1089751A/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
    • 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
    • H03K3/284—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 monostable

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1,089,751. Transistor monostable circuits. ROBERT BOSCH G.m.b.H. Dec. 18, 1964 [Dec. 19, 1963], No. 51501/64. Heading H3T. [Also in Divisions F1 and F2] A monostable multivibrator for supplying pulses to an electromagnetic clutch or fuel injection system of a motor vehicle in dependence on engine speed comprises a reciprocally coupled pair of transistors T1, T2 having a potential divider C3, R4, R5 and diode D2 arranged so that the duration of output pulses is a function of engine speed. The circuit is triggered by pulses 12 derived in synchronism with the engine. The potential dividers C3, R4 ... R7 and diode D2 arrange that the duration of pulses fed to the clutch (Figs. 4, 5, not shown) is constant at engine speeds below 700 r.p.m. but increases linearly above that speed. In Fig. 1 (not shown) diode D2 is connected in parallel with R5 so that the pulse duration is approximately a linear function of speed. Figs. 6-9 (not shown) relate to circuits in which capacitor C3 is replaced by a diode and R5 is replaced by a capacitor. Such circuits have a pulse duration which varies as a continuous or discontinuous function of pulse frequency.
GB5150164A 1963-12-19 1964-12-18 Improvements in multivibrators Expired GB1089751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB74725A DE1207432B (en) 1963-12-19 1963-12-19 Monostable multivibrator for the speed-dependent supply of an electromagnetically operated control or regulating device of a motor vehicle with current or voltage pulses

Publications (1)

Publication Number Publication Date
GB1089751A true GB1089751A (en) 1967-11-08

Family

ID=6978372

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5150164A Expired GB1089751A (en) 1963-12-19 1964-12-18 Improvements in multivibrators

Country Status (2)

Country Link
DE (1) DE1207432B (en)
GB (1) GB1089751A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487462A1 (en) * 1980-07-25 1982-01-29 Sachs Systemtechnik Gmbh DEVICE FOR AUTOMATICALLY CONTROLLING A FRICTION CLUTCH OF A MOTOR VEHICLE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646370A (en) * 1970-07-06 1972-02-29 Honeywell Inc Stabilized monostable delay multivibrator or one-shot apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084266A (en) * 1960-05-27 1963-04-02 Sylvania Electric Prod Monostable multivibrator using emitter-follower feedback timing circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487462A1 (en) * 1980-07-25 1982-01-29 Sachs Systemtechnik Gmbh DEVICE FOR AUTOMATICALLY CONTROLLING A FRICTION CLUTCH OF A MOTOR VEHICLE
US4509625A (en) * 1980-07-25 1985-04-09 Sachs-Systemtechnik Gmbh Automatic friction clutches and controls therefor

Also Published As

Publication number Publication date
DE1207432B (en) 1965-12-23

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