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GB1274051A - Improvements in or relating to transistor switches - Google Patents

Improvements in or relating to transistor switches

Info

Publication number
GB1274051A
GB1274051A GB40460/69A GB4046069A GB1274051A GB 1274051 A GB1274051 A GB 1274051A GB 40460/69 A GB40460/69 A GB 40460/69A GB 4046069 A GB4046069 A GB 4046069A GB 1274051 A GB1274051 A GB 1274051A
Authority
GB
United Kingdom
Prior art keywords
resistor
transistor
multivibrator
switch
circuit
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
GB40460/69A
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 GB1274051A publication Critical patent/GB1274051A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/13—Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Electronic Switches (AREA)
  • Relay Circuits (AREA)

Abstract

1,274,051. Transistor switching circuits. ROBERT BOSCH G.m.b.H. 13 Aug., 1969 [14 Aug., 1968], No. 40460/69. Heading H3T. [Also in Division F1] In a switching circuit comprising a transistor monostable multivibrator 1, 2, 7, a changeover switching mechanism, such as, a relay or electronic switch 6, 14 is arranged in the collector circuit of transistor 2 and the switching mechanism is operative to shunt a timing resistor 18, connectible between the base of the transistor 1 and a power supply line, when the multivibrator is in its stable state with 1 and 2 on and off, the switching mechanism is arranged to change over so as to open the shunt circuit when the multivibrator is in its quasi stable state and in the changed over state is adapted to connect the glow plug across a power supply. The circuit supplies power to a glow plug 21 in a diesel engine for a certain time after the start of the engine which causes a switch 23 to be closed, thus triggering the multivibrator. Switch 14 is then actuated to provide an alternative current path through terminal 20 to glow plug 21. Resistor 18 may be replaced by a variable resistor. A resistor 17 may be connected in parallel with the resistor 18 through a switch 12 in position c.
GB40460/69A 1968-08-14 1969-08-13 Improvements in or relating to transistor switches Expired GB1274051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681751884 DE1751884A1 (en) 1968-08-14 1968-08-14 Delay switch with long delay time

Publications (1)

Publication Number Publication Date
GB1274051A true GB1274051A (en) 1972-05-10

Family

ID=5692510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40460/69A Expired GB1274051A (en) 1968-08-14 1969-08-13 Improvements in or relating to transistor switches

Country Status (3)

Country Link
DE (1) DE1751884A1 (en)
FR (1) FR2015618A1 (en)
GB (1) GB1274051A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449799A1 (en) * 1979-02-26 1980-09-19 Diesel Kiki Co AUXILIARY DEVICE FOR STARTING A DIESEL ENGINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449799A1 (en) * 1979-02-26 1980-09-19 Diesel Kiki Co AUXILIARY DEVICE FOR STARTING A DIESEL ENGINE

Also Published As

Publication number Publication date
FR2015618A1 (en) 1970-04-30
DE1751884A1 (en) 1971-10-28

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Legal Events

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