CN204242086U - A kind of power amplification circuit for flight entertainment computing machine - Google Patents
A kind of power amplification circuit for flight entertainment computing machine Download PDFInfo
- Publication number
- CN204242086U CN204242086U CN201420648063.3U CN201420648063U CN204242086U CN 204242086 U CN204242086 U CN 204242086U CN 201420648063 U CN201420648063 U CN 201420648063U CN 204242086 U CN204242086 U CN 204242086U
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- resistance
- transformer
- triode
- computing machine
- amplification circuit
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Abstract
The utility model discloses a kind of power amplification circuit for flight entertainment computing machine, comprise the first transformer, second transformer, power supply, first resistance, second resistance, 3rd resistance, 4th resistance, first triode and the second triode, two output terminals of described power supply are connected with the two ends of a winding of described first transformer respectively, the first end of the Secondary Winding of described first transformer is connected with the base stage of described first triode, second end of the Secondary Winding of described first transformer is connected with the base stage of described second triode, the middle-end of the Secondary Winding of described first transformer is connected with the first end of described first resistance and the first end of described second resistance respectively, second end ground connection of described second resistance.The utility model solves the complex structure of the power amplification circuit commonly used in computing machine and the problem of unstable working condition, reduces manufacturing cost, has the value promoted the use of.
Description
Technical field
The utility model relates to a kind of signal processing circuit of entertainment computer, particularly relates to a kind of power amplification circuit for flight entertainment computing machine.
Background technology
Computing machine (computer) is commonly called as computing machine, is a kind of robot calculator device for supercomputing, can carries out numerical evaluation, can carry out logical calculated again, also have store-memory function.Can run according to program, automatically, the modernization intelligent electronic device of high speed processing mass data.Being made up of hardware system and software systems, the computing machine not installing any software is called bare machine.Can be divided into supercomputer, industrial control computer, network computer, personal computer, embedded computer five class, more advanced computing machine has biocomputer, photonic computer, quantum computer etc.
Invention on computer person John von Neumann, computing machine is one of 20th century state-of-the-art science and technology invention, creates extremely important impact to the activity in production of the mankind and social activities, and with powerful vitality develop rapidly.Its application is from initial military research application extension to the every field of society, define huge computer industry, drive the technical progress of global range, cause deep social change thus, computing machine is throughout general school, enterprises and institutions, enter common people house, become requisite instrument in information society.
Computer application is more and more general in China, and after reform and opening-up, the quantity of China Computer Users constantly rises, and application level improves constantly, and particularly the application in the field such as internet, communication, multimedia achieves good achievement.1996 to 2009, computer user's quantity rose to 6,710 ten thousand from original 6,300,000, and Net-connected computer number of units rises to 5,940 ten thousand by original 2.9 ten thousand.By air time, be can play variously not need the electronic product of network in the smooth flight stage of aircraft, in long-range flight, computing machine becomes the very important amusement equipment on aircraft.
A lot of signal processing circuit is had in computing machine, display is sent to after the various signals of various signal processing circuit to input computing machine process, operator is allowed to recognize information, the most more complicated of structure of power amplification circuit conventional in computing machine, the cost of manufacture of computing machine is increased, and much there is the problem of job stability deficiency.
Utility model content
The purpose of this utility model is just to provide a kind of power amplification circuit for flight entertainment computing machine to solve the problem.
In order to achieve the above object, the utility model have employed following technical scheme:
A kind of power amplification circuit for flight entertainment computing machine, comprise the first transformer, second transformer, power supply, first resistance, second resistance, 3rd resistance, 4th resistance, first triode and the second triode, two output terminals of described power supply are connected with the two ends of a winding of described first transformer respectively, the first end of the Secondary Winding of described first transformer is connected with the base stage of described first triode, second end of the Secondary Winding of described first transformer is connected with the base stage of described second triode, the middle-end of the Secondary Winding of described first transformer is connected with the first end of described first resistance and the first end of described second resistance respectively, second end ground connection of described second resistance, second end of described first resistance is the signal output part of described power amplification circuit, second end of described first resistance is connected with the middle-end of a winding of described second transformer, the first end of a winding of described second transformer is connected with the collector of described first triode, second end of a winding of described second transformer is connected with the collector of described second triode, the emitter of described second triode is connected with the emitter of described first triode and the second end of described 3rd resistance respectively, second end ground connection of described 3rd resistance, the two ends of the Secondary Winding of described second transformer are connected with the two ends of described 4th resistance respectively.
The beneficial effects of the utility model are:
The utility model is a kind of power amplification circuit for flight entertainment computing machine, solves the complex structure of the power amplification circuit commonly used in computing machine and the problem of unstable working condition, reduces manufacturing cost, have the value promoted the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of power amplification circuit for flight entertainment computing machine of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model is a kind of power amplification circuit for flight entertainment computing machine, comprise the first transformer T1, second transformer T2, power supply, first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, first triode VT1 and the second triode VT2, two output terminals of power supply are connected with the two ends of a winding of the first transformer T1 respectively, the first end of the Secondary Winding of the first transformer T is connected with the base stage of the first triode VT1, second end of the Secondary Winding of the first transformer T1 is connected with the base stage of the second triode VT2, the middle-end of the Secondary Winding of the first transformer T1 is connected with the first end of the first resistance R1 and the first end of the second resistance R2 respectively, the second end ground connection of the second resistance R2, second end of the first resistance R1 is the signal output part of power amplification circuit, second end of the first resistance R1 is connected with the middle-end of a winding of the second transformer T2, the first end of a winding of the second transformer T2 is connected with the collector of the first triode VT1, second end of a winding of the second transformer T2 is connected with the collector of the second triode VT2, the emitter of the second triode VT2 is connected with the emitter of the first triode VT1 and second end of the 3rd resistance R3 respectively, the second end ground connection of the 3rd resistance R3, the two ends of the Secondary Winding of the second transformer T2 are connected with the two ends of the 4th resistance R4 respectively.
The utility model is the symmetric circuit composed in parallel by two monolateral power amplification circuits, wherein the first transformer T1 is that Secondary Winding has centre tapped input transformer, second transformer T2 is that a winding has centre tapped output transformer, and the first triode VT1 is the transistor that two model identical parameters are consistent with the second triode VT2.
Claims (1)
1. the power amplification circuit for flight entertainment computing machine, comprise the first transformer, second transformer and power supply, it is characterized in that: also comprise the first resistance, second resistance, 3rd resistance, 4th resistance, first triode and the second triode, two output terminals of described power supply are connected with the two ends of a winding of described first transformer respectively, the first end of the Secondary Winding of described first transformer is connected with the base stage of described first triode, second end of the Secondary Winding of described first transformer is connected with the base stage of described second triode, the middle-end of the Secondary Winding of described first transformer is connected with the first end of described first resistance and the first end of described second resistance respectively, second end ground connection of described second resistance, second end of described first resistance is the signal output part of described power amplification circuit, second end of described first resistance is connected with the middle-end of a winding of described second transformer, the first end of a winding of described second transformer is connected with the collector of described first triode, second end of a winding of described second transformer is connected with the collector of described second triode, the emitter of described second triode is connected with the emitter of described first triode and the second end of described 3rd resistance respectively, second end ground connection of described 3rd resistance, the two ends of the Secondary Winding of described second transformer are connected with the two ends of described 4th resistance respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648063.3U CN204242086U (en) | 2014-11-03 | 2014-11-03 | A kind of power amplification circuit for flight entertainment computing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648063.3U CN204242086U (en) | 2014-11-03 | 2014-11-03 | A kind of power amplification circuit for flight entertainment computing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204242086U true CN204242086U (en) | 2015-04-01 |
Family
ID=52771555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420648063.3U Expired - Fee Related CN204242086U (en) | 2014-11-03 | 2014-11-03 | A kind of power amplification circuit for flight entertainment computing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204242086U (en) |
-
2014
- 2014-11-03 CN CN201420648063.3U patent/CN204242086U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20151103 |
|
| EXPY | Termination of patent right or utility model |