GB870619A - Improvements in and relating to relay operating circuits employing transistors - Google Patents

Improvements in and relating to relay operating circuits employing transistors

Info

Publication number
GB870619A
GB870619A GB26009/58A GB2600958A GB870619A GB 870619 A GB870619 A GB 870619A GB 26009/58 A GB26009/58 A GB 26009/58A GB 2600958 A GB2600958 A GB 2600958A GB 870619 A GB870619 A GB 870619A
Authority
GB
United Kingdom
Prior art keywords
relay
circuit
winding
transistor
relating
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
GB26009/58A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB870619A publication Critical patent/GB870619A/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
    • H03K3/30—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)
  • Relay Circuits (AREA)

Abstract

870,619. Transistor relay circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 13, 1958 [Aug. 16, 1957], No. 26009/58. Class 40(6). A relay circuit comprises a transistor having one winding 18 of a relay in its collector-emitter circuit and another winding 22 connected regeneratively in the base-emitter circuit, whereby the application of a pulse through a capacitor 26 to the base circuit will cause the relay to operate. In the circuit shown the transistor is biased to be normally non-conductive by a circuit 12, 14, 16. The relay may be maintained operated by a third winding connected in series with latching contacts or by a mechanical latch releasable by passing current through a winding of the relay.
GB26009/58A 1957-08-16 1958-08-13 Improvements in and relating to relay operating circuits employing transistors Expired GB870619A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US870619XA 1957-08-16 1957-08-16

Publications (1)

Publication Number Publication Date
GB870619A true GB870619A (en) 1961-06-14

Family

ID=22202886

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26009/58A Expired GB870619A (en) 1957-08-16 1958-08-13 Improvements in and relating to relay operating circuits employing transistors

Country Status (2)

Country Link
FR (1) FR1213509A (en)
GB (1) GB870619A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170095A (en) * 1961-04-04 1965-02-16 Sperry Rand Corp Relay control circuit
US4402033A (en) * 1978-10-23 1983-08-30 Ferdy Mayer Sensitive relay with high threshold stability

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170095A (en) * 1961-04-04 1965-02-16 Sperry Rand Corp Relay control circuit
US4402033A (en) * 1978-10-23 1983-08-30 Ferdy Mayer Sensitive relay with high threshold stability

Also Published As

Publication number Publication date
FR1213509A (en) 1960-04-01

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