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GB985181A - Non-synchronous electrical switch circuits - Google Patents

Non-synchronous electrical switch circuits

Info

Publication number
GB985181A
GB985181A GB3588662A GB3588662A GB985181A GB 985181 A GB985181 A GB 985181A GB 3588662 A GB3588662 A GB 3588662A GB 3588662 A GB3588662 A GB 3588662A GB 985181 A GB985181 A GB 985181A
Authority
GB
United Kingdom
Prior art keywords
capacitor
switch
coil
diode
relay
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
GB3588662A
Inventor
Guy Mason
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.)
HIRST ELECTRONIC Ltd
Original Assignee
HIRST ELECTRONIC Ltd
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 HIRST ELECTRONIC Ltd filed Critical HIRST ELECTRONIC Ltd
Priority to GB3588662A priority Critical patent/GB985181A/en
Publication of GB985181A publication Critical patent/GB985181A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching

Landscapes

  • Sewing Machines And Sewing (AREA)
  • Ticket-Dispensing Machines (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

985,181. Relay circuits. HIRST ELECTRONIC Ltd. Dec. 2, 1963 [Sept. 20, 1962], No. 35886/62. Heading H2H. A circuit for energizing a relay coil 16 for a given period irrespective of the period that a switch 20 is closed comprises a capacitor 18 which is discharged through a diode 21 and coil 16 when the switch 20 is closed, causing contacts 16b to change over allowing another capacitor 23 to discharge through parallel paths comprising the lower part of a potentiometer 27, and the upper part of potentiometer 26, a diode 25 and the coil 16, which coil remains energized until capacitor 23 is discharged. Until switch 20 is released, capacitor 18 cannot recharge through diode 19. A switch 24 and capacitor 22 give an alternative folding time for the relay. A contact 16a controls an external circuit 20. Another circuit is described in the Specification whereby the capacitor 18 is charged on closure of the switch 20.
GB3588662A 1962-09-20 1962-09-20 Non-synchronous electrical switch circuits Expired GB985181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3588662A GB985181A (en) 1962-09-20 1962-09-20 Non-synchronous electrical switch circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3588662A GB985181A (en) 1962-09-20 1962-09-20 Non-synchronous electrical switch circuits

Publications (1)

Publication Number Publication Date
GB985181A true GB985181A (en) 1965-03-03

Family

ID=10382633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3588662A Expired GB985181A (en) 1962-09-20 1962-09-20 Non-synchronous electrical switch circuits

Country Status (1)

Country Link
GB (1) GB985181A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2307621A1 (en) * 1975-04-17 1976-11-12 Bosch Gmbh Robert ELECTRIC MOTOR SCREWDRIVER, ESPECIALLY IMPACT SCREWDRIVER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2307621A1 (en) * 1975-04-17 1976-11-12 Bosch Gmbh Robert ELECTRIC MOTOR SCREWDRIVER, ESPECIALLY IMPACT SCREWDRIVER

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