CN201937746U - Two-in-one circuit board for television - Google Patents
Two-in-one circuit board for television Download PDFInfo
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- CN201937746U CN201937746U CN2011200298239U CN201120029823U CN201937746U CN 201937746 U CN201937746 U CN 201937746U CN 2011200298239 U CN2011200298239 U CN 2011200298239U CN 201120029823 U CN201120029823 U CN 201120029823U CN 201937746 U CN201937746 U CN 201937746U
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Abstract
The utility model relates to a television technology, in particular to a two-in-one circuit board for a television, which comprises a circuit board body, wherein the circuit board body is provided with a control circuit, an input/output interface, an audio signal output interface, a video signal output interface and an alternating current (AC) input interface, the control circuit board comprises a signal processing circuit and a power supply circuit, the output end of the power supply circuit is connected with the power supply input end of the signal processing circuit, the input/output interface is connected with the input/output end of the signal processing circuit, the audio signal output interface is connected with the audio signal output end of the signal processing circuit, the video signal output interface is connected with the video signal output end of the signal processing circuit, and the AC input interface is connected with the input end of the power supply circuit. The two-in-one circuit board for the television has the advantages that connecting wires are saved, the arrangement of independent and separated fixing structures is not needed, and the assembly work procedures of the television are reduced, so the two-in-one circuit board for the television has the characteristics the production cost is low and the assembly is easy.
Description
Technical field
The utility model relates to television technologies, relates in particular to a kind of two-in-one circuit board that is used for television set.
Background technology
As everyone knows; the mainboard of television set is mainly used in the signalization treatment circuit; as image processing circuit, voicefrequency circuit etc., and mainboard can be provided for usually input signal or output signal input/output interface, be used to connect loudspeaker the audio signal output interface, be used to connect display screen video signal output interface, be used to import the power input interface of power supply.The power panel of television set is mainly used in power circuit is set, and as rectification circuit, filter circuit etc., and power panel can be provided for the AC(alternating current of external AC usually) input interface, be used for the power output interface of out-put supply.
The mainboard of television set is two circuit boards that independently separate with power panel mostly in the prior art, the power input interface of mainboard is connected with the power output interface of power panel by connecting line, make power panel can be main board power supply, but the mainboard of this television set and the structure that power panel independently separates need be provided with the fixed structure that independently separates to mainboard and power panel, cause the production cost of television set higher, and, make the assembling procedure of television set increase i.e. assembling trouble.
Summary of the invention
The purpose of this utility model is to provide at the deficiencies in the prior art the two-in-one circuit board that a kind of production cost is lower, assembling is easy to be used for television set.
The purpose of this utility model realizes by following technical measures: a kind of two-in-one circuit board that is used for television set, it includes a circuit board main body, circuit board main body is provided with control circuit, input/output interface, the audio signal output interface, video signal output interface, the AC input interface, control circuit comprises signal processing circuit, power circuit, the output of power circuit is connected with the power input of signal processing circuit, input/output interface is connected with the I/O end of signal processing circuit, the audio signal output interface is connected with the audio signal output end of signal processing circuit, video signal output interface is connected with the VT of signal processing circuit, and the AC input interface is connected with the input of power circuit.
Described signal processing circuit comprises that high-frequency digital signal processing unit, image processing circuit, video amplifier circuit, senior middle school put integrated circuit, voicefrequency circuit, mainboard voltage change-over circuit; The input of mainboard voltage change-over circuit is the power input of signal processing circuit, and the output of mainboard voltage change-over circuit is connected with the power input of high-frequency digital signal processing unit; First VT of high-frequency digital signal processing unit is connected with the input of image processing circuit, the output of image processing circuit is connected with first video signal input terminal of video amplifier circuit, second VT of high-frequency digital signal processing unit is connected with second video signal input terminal of video amplifier circuit, and the output of video amplifier circuit is the VT of signal processing circuit; The audio signal input end of signal processing circuit, the input of voicefrequency circuit all are connected with the output that integrated circuit is put in senior middle school, and the output of voicefrequency circuit is the audio signal output end of signal processing circuit.
Described input/output interface comprises AV socket (normal video input interface), and the AV socket is connected with the first I/O end of high-frequency digital signal processing unit.
Described input/output interface comprises VGA(Video Graphics Array, Video Graphics Array) socket, the VGA socket is connected with the second I/O end of high-frequency digital signal processing unit.
Described input/output interface comprises HDMI(High Definition Multimedia Interface, high-definition multimedia) socket, the HDMI socket is connected with the 3rd I/O end of high-frequency digital signal processing unit.
Described power circuit comprises the EMI(electromagnetic interference) filter, input rectifying and filter circuit, power transfer transformer, output rectification and filter circuit, the input of electromagnetic interface filter is the input of power circuit, the output of electromagnetic interface filter is connected with the input of input rectifying and filter circuit, the output of input rectifying and filter circuit is connected with the input of power transfer transformer, the output of power transfer transformer is connected with the input of output rectification and filter circuit, and the output of output rectification and filter circuit is the output of power circuit.
Described power circuit further comprises capability correction and feedback circuit; capability correction and feedback circuit comprise the auxiliary unit circuit; control unit circuit; the protected location circuit; the detection feedback element circuit; the input of auxiliary unit circuit is connected with the output of electromagnetic interface filter; first output of auxiliary unit circuit is connected with the first input end of control unit circuit; second output of auxiliary unit circuit is connected with the first input end of protected location circuit; the output of protected location circuit is connected with second input of control unit circuit; the output of control unit circuit is connected with the control end of power transfer transformer; the input of detection feedback element circuit is connected with the output of output rectification and filter circuit, and the output of detection feedback element circuit is connected with second input of protected location circuit.
The utility model beneficial effect is: the utility model includes a circuit board main body, circuit board main body is provided with control circuit, input/output interface, the audio signal output interface, video signal output interface, the AC input interface, control circuit comprises signal processing circuit, power circuit, the output of power circuit is connected with the power input of signal processing circuit, input/output interface is connected with the I/O end of signal processing circuit, the audio signal output interface is connected with the audio signal output end of signal processing circuit, video signal output interface is connected with the VT of signal processing circuit, and the AC input interface is connected with the input of power circuit.Because the utility model is integrated in the signal processing circuit of TV SKD and the power circuit of TV set power plate on the circuit board main body, form the mainboard and the two-in-one circuit board of power panel of television set, therefore thereby saved connecting line, need not to be provided with the fixed structure that independently separates, the assembling procedure that has reduced television set, the utlity model has that production cost is lower, assembling is easy to characteristics.
Description of drawings
Fig. 1 is a kind of structural representation that is used for the two-in-one circuit board of television set of the utility model.
Fig. 2 is a kind of frame principle figure that is used for the two-in-one circuit board of television set of the utility model.
In Fig. 1 and Fig. 2, include:
1---circuit board main body 11---audio signal output interface
12---video signal output interface 13---AC input interface
2---signal processing circuit 21---high-frequency digital signal processing unit
22---image processing circuit 23---video amplifier circuit
24---integrated circuit 25 is put in senior middle school---voicefrequency circuit
26---mainboard voltage change-over circuit 3---power circuit
31---electromagnetic interface filter 32---input rectifying and filter circuit
33---power transfer transformers 34---output rectification and filter circuit
35---auxiliary unit circuit 36---control unit circuit
37---protected location circuit 38---detection feedback element circuit
41---AV socket 42---VGA socket
43---the HDMI socket.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of two-in-one circuit board that is used for television set of the present utility model, as Fig. 1, shown in 2, it includes a circuit board main body 1, circuit board main body 1 is provided with control circuit, the input/output interface that is used for input signal or output signal, be used to connect the audio signal output interface 11 of loudspeaker, be used to connect the video signal output interface 12 of display screen, the AC input interface 13 that is used for external AC, control circuit comprises that signal processing circuit 2(is equivalent to the circuit that the conventional television mainboard is provided with), power circuit 3(is equivalent to the circuit that the conventional television power panel is provided with), the output of power circuit 3 is connected with the power input of signal processing circuit 2, and power circuit 3 is powered for signal processing circuit 2; Input/output interface is connected with the I/O end of signal processing circuit 2, audio signal output interface 11 is connected with the audio signal output end of signal processing circuit 2, makes signal processing circuit 2 audio signal can be passed to the loudspeaker of television set by audio signal output interface 11; Video signal output interface 12 is connected with the VT of signal processing circuit 2, makes signal processing circuit 2 vision signal can be passed to the display screen of television set by video signal output interface 12; AC input interface 13 is connected with the input of power circuit 3, makes power circuit 3 can pass through AC input interface 13 external ACs.
Signal processing circuit 2 comprises that high-frequency digital signal processing unit 21, image processing circuit 22, video amplifier circuit 23, senior middle school put integrated circuit 24, voicefrequency circuit 25, mainboard voltage change-over circuit 26; The input of mainboard voltage change-over circuit 26 is the power input of signal processing circuit 2, and the output of mainboard voltage change-over circuit 26 is connected with the power input of high-frequency digital signal processing unit 21; First VT of high-frequency digital signal processing unit 21 is connected with the input of image processing circuit 22, the output of image processing circuit 22 is connected with first video signal input terminal of video amplifier circuit 23, second VT of high-frequency digital signal processing unit 21 is connected with second video signal input terminal of video amplifier circuit 23, and the output of video amplifier circuit 23 is the VT of signal processing circuit 2; The input of the audio signal input end of signal processing circuit 2, voicefrequency circuit 25 all is connected with the output that integrated circuit 24 is put in senior middle school, and the output of voicefrequency circuit 25 is the audio signal output end of signal processing circuit 2.
Input/output interface comprises AV socket 41, and AV socket 41 is connected with the first I/O end (I/O_1) of high-frequency digital signal processing unit 21, makes AV socket 41 video standard signal can be inputed to high-frequency digital signal processing unit 21.
Input/output interface comprises VGA socket 42, and VGA socket 42 is connected with the second I/O end (I/O_2) of high-frequency digital signal processing unit 21, makes VGA socket 42 the VGA vision signal can be inputed to high-frequency digital signal processing unit 21.
Input/output interface comprises HDMI socket 43, HDMI socket 43 is connected with the 3rd I/O end (I/O_3) of high-frequency digital signal processing unit 21, makes HDMI socket 43 the high-definition multimedia vision signal can be inputed to high-frequency digital signal processing unit 21.
Power circuit 3 comprises electromagnetic interface filter 31, input rectifying and filter circuit 32, power transfer transformer 33, output rectification and filter circuit 34, the input of electromagnetic interface filter 31 is the input of power circuit 3, the output of electromagnetic interface filter 31 is connected with the input of input rectifying and filter circuit 32, the output of input rectifying and filter circuit 32 is connected with the input of power transfer transformer 33, the output of power transfer transformer 33 is connected with the input of output rectification and filter circuit 34, and the output of output rectification and filter circuit 34 is the output of power circuit 3.
Power circuit 3 further comprises capability correction and feedback circuit; capability correction and feedback circuit comprise auxiliary unit circuit 35; control unit circuit 36; protected location circuit 37; detection feedback element circuit 38; the input of auxiliary unit circuit 35 is connected with the output of electromagnetic interface filter 31; first output of auxiliary unit circuit 35 is connected with the first input end of control unit circuit 36; second output of auxiliary unit circuit 35 is connected with the first input end of protected location circuit 37; the output of protected location circuit 37 is connected with second input of control unit circuit 36; the output of control unit circuit 36 is connected with the control end of power transfer transformer 33; the input of detection feedback element circuit 38 is connected with the output of output rectification and filter circuit 34, and the output of detection feedback element circuit 38 is connected with second input of protected location circuit 37.
When the utility model is applied to television set, because the utility model is integrated in the signal processing circuit 2 of TV SKD and the power circuit 3 of TV set power plate on the circuit board main body 1, so, television set need not to be provided with the fixed structure that independently separates, reduced the assembling procedure of television set, production cost is lower, assembling is easy to characteristics so the utlity model has.
Should be noted that at last; above embodiment is only in order to the explanation the technical solution of the utility model; but not to the restriction of the utility model protection range; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
Claims (7)
1. two-in-one circuit board that is used for television set, it is characterized in that: it includes a circuit board main body, circuit board main body is provided with control circuit, input/output interface, the audio signal output interface, video signal output interface, the AC input interface, control circuit comprises signal processing circuit, power circuit, the output of power circuit is connected with the power input of signal processing circuit, input/output interface is connected with the I/O end of signal processing circuit, the audio signal output interface is connected with the audio signal output end of signal processing circuit, video signal output interface is connected with the VT of signal processing circuit, and the AC input interface is connected with the input of power circuit.
2. the two-in-one circuit board that is used for television set according to claim 1 is characterized in that: integrated circuit, voicefrequency circuit, mainboard voltage change-over circuit are put in the senior middle school that described signal processing circuit comprises high-frequency digital signal processing unit, image processing circuit, video amplifier circuit, be used for input audio signal; The input of mainboard voltage change-over circuit is the power input of signal processing circuit, and the output of mainboard voltage change-over circuit is connected with the power input of high-frequency digital signal processing unit; First VT of high-frequency digital signal processing unit is connected with the input of image processing circuit, the output of image processing circuit is connected with first video signal input terminal of video amplifier circuit, second VT of high-frequency digital signal processing unit is connected with second video signal input terminal of video amplifier circuit, and the output of video amplifier circuit is the VT of signal processing circuit; The audio signal input end of signal processing circuit, the input of voicefrequency circuit all are connected with the output that integrated circuit is put in senior middle school, and the output of voicefrequency circuit is the audio signal output end of signal processing circuit.
3. the two-in-one circuit board that is used for television set according to claim 2, it is characterized in that: described input/output interface comprises the AV socket, the AV socket is connected with the first I/O end of high-frequency digital signal processing unit.
4. the two-in-one circuit board that is used for television set according to claim 2, it is characterized in that: described input/output interface comprises the VGA socket, the VGA socket is connected with the second I/O end of high-frequency digital signal processing unit.
5. the two-in-one circuit board that is used for television set according to claim 2, it is characterized in that: described input/output interface comprises the HDMI socket, the HDMI socket is connected with the 3rd I/O end of high-frequency digital signal processing unit.
6. according to any described two-in-one circuit board that is used for television set of claim 1 to 5, it is characterized in that: described power circuit comprises electromagnetic interface filter, input rectifying and filter circuit, the power transfer transformer, output rectification and filter circuit, the input of electromagnetic interface filter is the input of power circuit, the output of electromagnetic interface filter is connected with the input of input rectifying and filter circuit, the output of input rectifying and filter circuit is connected with the input of power transfer transformer, the output of power transfer transformer is connected with the input of output rectification and filter circuit, and the output of output rectification and filter circuit is the output of power circuit.
7. the two-in-one circuit board that is used for television set according to claim 6; it is characterized in that: described power circuit further comprises capability correction and feedback circuit; capability correction and feedback circuit comprise the auxiliary unit circuit; control unit circuit; the protected location circuit; the detection feedback element circuit; the input of auxiliary unit circuit is connected with the output of electromagnetic interface filter; first output of auxiliary unit circuit is connected with the first input end of control unit circuit; second output of auxiliary unit circuit is connected with the first input end of protected location circuit; the output of protected location circuit is connected with second input of control unit circuit; the output of control unit circuit is connected with the control end of power transfer transformer; the input of detection feedback element circuit is connected with the output of output rectification and filter circuit, and the output of detection feedback element circuit is connected with second input of protected location circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200298239U CN201937746U (en) | 2011-01-28 | 2011-01-28 | Two-in-one circuit board for television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200298239U CN201937746U (en) | 2011-01-28 | 2011-01-28 | Two-in-one circuit board for television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201937746U true CN201937746U (en) | 2011-08-17 |
Family
ID=44449249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200298239U Expired - Lifetime CN201937746U (en) | 2011-01-28 | 2011-01-28 | Two-in-one circuit board for television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201937746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427513A (en) * | 2011-10-10 | 2012-04-25 | 深圳市金锐显数码科技有限公司 | Television host and power supply integration board |
-
2011
- 2011-01-28 CN CN2011200298239U patent/CN201937746U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427513A (en) * | 2011-10-10 | 2012-04-25 | 深圳市金锐显数码科技有限公司 | Television host and power supply integration board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |