GB820813A - Improvements in or relating to push-pull transistor oscillators - Google Patents
Improvements in or relating to push-pull transistor oscillatorsInfo
- Publication number
- GB820813A GB820813A GB38376/56A GB3837656A GB820813A GB 820813 A GB820813 A GB 820813A GB 38376/56 A GB38376/56 A GB 38376/56A GB 3837656 A GB3837656 A GB 3837656A GB 820813 A GB820813 A GB 820813A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- transistors
- winding
- feedback
- push
- 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
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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
- H02M3/3382—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement in a push-pull circuit arrangement
- H02M3/3384—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement in a push-pull circuit arrangement of the parallel type
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Dc-Dc Converters (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
820,813. Rectifying. GENERAL MOTORS CORPORATION. Dec. 17, 1956 [Jan. 12, 1956], No. 38376/56. Class 38 (2). [Also in Group XL (c)] A push-pull transistor inverter circuit of the type comprising a feedback transformer arranged to render the transistors alternately conducting, has a time constant circuit connected in the input circuit of each transistor to permit the input current to be initially high but to cause it thereafter to decrease. In the circuit shown the two transistors 10, 10<SP>1</SP> are connected to a transformer having a primary winding 36, 37, a feedback winding 62, 63 and an output winding 100. The feedback winding is connected to the bases of the transistors through time constant circuits 66, 68 and 74, 76 which permit the initial feedback current to be high but thereafter reduce it to a safe value for the transistors. A resistor 90 ensures that oscillation starts when the circuit is switched on. The output winding is connected to a fullwave rectifier 94 and smoothing circuit 108, 110, 112. The circuit may use junction or point contact transistors.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US820813XA | 1955-01-12 | 1955-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB820813A true GB820813A (en) | 1959-09-30 |
Family
ID=22168942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB38376/56A Expired GB820813A (en) | 1955-01-12 | 1956-12-17 | Improvements in or relating to push-pull transistor oscillators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB820813A (en) |
-
1956
- 1956-12-17 GB GB38376/56A patent/GB820813A/en not_active Expired
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