GB2002191A - Electronic pulse generators - Google Patents
Electronic pulse generatorsInfo
- 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
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
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>
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2614153B1 (en) * | 1987-04-17 | 1994-03-04 | Thomson Csf | SEMICONDUCTOR SWITCH CONTROL DEVICE |
-
1978
- 1978-06-30 GB GB7828486A patent/GB2002191B/en not_active Expired
- 1978-07-03 FR FR7819767A patent/FR2397102A1/en active Granted
- 1978-07-04 DE DE19782829305 patent/DE2829305A1/en not_active Withdrawn
Cited By (3)
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 |
---|---|
FR2397102A1 (en) | 1979-02-02 |
GB2002191B (en) | 1982-08-18 |
FR2397102B1 (en) | 1984-06-01 |
DE2829305A1 (en) | 1979-01-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |