GB966648A - Magnetically-coupled multivibrators - Google Patents

Magnetically-coupled multivibrators

Info

Publication number
GB966648A
GB966648A GB29905/62A GB2990562A GB966648A GB 966648 A GB966648 A GB 966648A GB 29905/62 A GB29905/62 A GB 29905/62A GB 2990562 A GB2990562 A GB 2990562A GB 966648 A GB966648 A GB 966648A
Authority
GB
United Kingdom
Prior art keywords
transistor
current
core
windings
winding
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
GB29905/62A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB966648A publication Critical patent/GB966648A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5383—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
    • H02M7/53846—Control circuits
    • H02M7/53862—Control circuits using transistor type converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5383—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
    • H02M7/53846—Control circuits
    • 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
    • H03K3/30—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 a transformer for feedback, e.g. blocking oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Inverter Devices (AREA)

Abstract

966,648. Circuits employing bi-stable magnetic cores, transistor oscillator circuits, pulse modulation circuits. GENERAL MOTORS CORPORATION. Aug. 3, 1962 [Aug. 21, 1961], No. 29905/62. Headings H3B, H3T and H4L. The current through one switch means 16 of a multivibrator is used directly to drive a core 12 to saturation and to reset a core 10 from saturation to an intermediate state, a second switch means 14 resetting core 12 and saturating core 10 during the other half cycle. In the embodiment of Fig. 1, current flowing through transistor 14 and primary winding 20 induces a current in winding 22 which maintains the transistor 14 in its conducting state. The current flowing in primary winding 30 induces a current in winding 32 which cuts off transistor 16. When core 10 saturates the feedback current ceases and transistor 14 cuts off. The flow of current through windings 20 and 30 ceases, inducing currents in windings 22 and 32 which further cut off transistor 14 and switch on transistor 16. The alternate half cycle then proceeds in an analogous manner. A control current from source 58 flowing in windings 24 and 34 produces a bias which affects the degree of reset and thus controls the frequency of the device. The bias current in windings 26 and 36 determines the zero point of the control. A similar embodiment utilizes a transformer to take the bulk of the transistor currents (Fig. 2, not shown). The output of Fig. 1 is taken between the collectors and in the embodiment of Fig. 2 across the output of the transformer.
GB29905/62A 1961-08-21 1962-08-03 Magnetically-coupled multivibrators Expired GB966648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US132943A US3223945A (en) 1961-08-21 1961-08-21 Controllable frequency magnetically coupled multivibrator

Publications (1)

Publication Number Publication Date
GB966648A true GB966648A (en) 1964-08-12

Family

ID=22456289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29905/62A Expired GB966648A (en) 1961-08-21 1962-08-03 Magnetically-coupled multivibrators

Country Status (3)

Country Link
US (1) US3223945A (en)
DE (1) DE1180777B (en)
GB (1) GB966648A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659185A (en) * 1971-06-10 1972-04-25 Collins Radio Co Volt-second unbalanced compensated two core power transformer
US3806792A (en) * 1973-07-16 1974-04-23 Bell Telephone Labor Inc Parallel inverter with saturable reactor current control

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873371A (en) * 1955-11-18 1959-02-10 Roland L Van Allen Variable frequency transistor oscillator
US2939115A (en) * 1955-12-28 1960-05-31 Bell Telephone Labor Inc Pulse generator
US2854580A (en) * 1956-01-04 1958-09-30 George C Uchrin Transistor oscillator frequency control
US2967989A (en) * 1956-09-27 1961-01-10 North American Aviation Inc High voltage power supply
US2849673A (en) * 1956-10-08 1958-08-26 Boeing Co Transistorized inverters
US2964716A (en) * 1957-07-29 1960-12-13 United Aircraft Corp Displacement-to-frequency transducer
US2988734A (en) * 1959-02-24 1961-06-13 Rca Corp Magnetic memory systems
US3015772A (en) * 1959-06-02 1962-01-02 Robert W Rochelle Series connected d. c. supply magnetic amplifier

Also Published As

Publication number Publication date
DE1180777B (en) 1964-11-05
US3223945A (en) 1965-12-14

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