GB2002191A - Electronic pulse generators - Google Patents

Electronic pulse generators

Info

Publication number
GB2002191A
GB2002191A GB7828486A GB7828486A GB2002191A GB 2002191 A GB2002191 A GB 2002191A GB 7828486 A GB7828486 A GB 7828486A GB 7828486 A GB7828486 A GB 7828486A GB 2002191 A GB2002191 A GB 2002191A
Authority
GB
United Kingdom
Prior art keywords
transistor
current
collector
carry
secondary 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.)
Granted
Application number
GB7828486A
Other versions
GB2002191B (en
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.)
Secretary of State for Defence Canada
UK Secretary of State for Defence
Original Assignee
Secretary of State for Defence Canada
UK Secretary of State for Defence
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 Secretary of State for Defence Canada, UK Secretary of State for Defence filed Critical Secretary of State for Defence Canada
Publication of GB2002191A publication Critical patent/GB2002191A/en
Application granted granted Critical
Publication of GB2002191B publication Critical patent/GB2002191B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042—Electrical excitation ; Circuits therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/12—Modifications for increasing the maximum permissible switched current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/601—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors using transformer coupling

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Dc-Dc Converters (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Generation Of Surge Voltage And Current (AREA)
  • Semiconductor Lasers (AREA)

Abstract

A fast-rise high current pulsing circuit includes a transistor, means for connecting the load between the collector of the transistor and a direct- current power supply, and a transformer having a first secondary winding connected to carry the base current of the transistor and a second of the said secondary winding connected to carry either the emitter current or the collector current of the transistor so that voltages induced in both secondary windings will cooperate additively to control the development of collector current pulses in the transistor. A battery- powered converter may provide appropriate power supplies to the circuit, e.g. in a hand-held laser illuminator. <IMAGE>
GB7828486A 1977-07-04 1978-06-30 Electronic pulse generators Expired GB2002191B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2781777 1977-07-04

Publications (2)

Publication Number Publication Date
GB2002191A true GB2002191A (en) 1979-02-14
GB2002191B GB2002191B (en) 1982-08-18

Family

ID=10265781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7828486A Expired GB2002191B (en) 1977-07-04 1978-06-30 Electronic pulse generators

Country Status (3)

Country Link
DE (1) DE2829305A1 (en)
FR (1) FR2397102A1 (en)
GB (1) GB2002191B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015073236A3 (en) * 2013-11-12 2015-07-09 Microsoft Technology Licensing, Llc Power efficient laser diode driver circuit and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2614153B1 (en) * 1987-04-17 1994-03-04 Thomson Csf SEMICONDUCTOR SWITCH CONTROL DEVICE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015073236A3 (en) * 2013-11-12 2015-07-09 Microsoft Technology Licensing, Llc Power efficient laser diode driver circuit and method
US9769459B2 (en) 2013-11-12 2017-09-19 Microsoft Technology Licensing, Llc Power efficient laser diode driver circuit and method
US10205931B2 (en) 2013-11-12 2019-02-12 Microsoft Technology Licensing, Llc Power efficient laser diode driver circuit and method

Also Published As

Publication number Publication date
DE2829305A1 (en) 1979-01-25
GB2002191B (en) 1982-08-18
FR2397102B1 (en) 1984-06-01
FR2397102A1 (en) 1979-02-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee