CN205992954U - A kind of television set and its power panel circuit - Google Patents
A kind of television set and its power panel circuit Download PDFInfo
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- CN205992954U CN205992954U CN201620961911.5U CN201620961911U CN205992954U CN 205992954 U CN205992954 U CN 205992954U CN 201620961911 U CN201620961911 U CN 201620961911U CN 205992954 U CN205992954 U CN 205992954U
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Abstract
This utility model belongs to power circuit technical field, more particularly, to a kind of television set and its power panel circuit.In this utility model embodiment, the power panel circuit of television set includes TV mainboard and LED lamp bar, the power panel circuit of described television set also includes main power board and the auxiliary power plate being connected respectively with described TV mainboard and LED lamp bar, when TV standby, main power board provides voltage for TV mainboard, auxiliary power plate is stopped power supply, and it is big thus can to meet power panel power, thickness of thin and the low requirement of stand-by power consumption.
Description
Technical field
This utility model belongs to power circuit technical field, more particularly, to a kind of television set and its power panel circuit.
Background technology
Now, 85 cun of television sets do not have diaphragm (if increasing diaphragm, due to Gravity Problem it is easy to occur due to the inside
Situations such as diaphragm deformation), but brightness requires to reach more than 450cd/m2 again, so be necessary for increase backlight lamp bar quantity coming in fact
Existing, lamp bar quantity more than one, that relatively right power is also just much bigger.Backlight power on the market is almost in 400W now
Left and right, along with the electrical equipment such as T-CON and mainboard and power amplifier, general power want 510W about it is contemplated that margin of operation problem, institute
Requirement could be met with the power panel of 600W at least to be designed.And television set is all that the ratio designing is relatively thin now, large-sized
Whole machine thickness ability 40mm about, it is contemplated that safe distance etc. requires in safety, the power panel maximum gauge≤17mm of design, electricity
Source plate is thinner, and power more can not do greatly, otherwise is unfavorable for producing because power supply plate suqare is too big.If so it is defeated to be 600W
The power panel going out, but also will beneficial to produce, that must consider with two block power supply plates collocation get up complete design, averagely each electricity
Source plate exports the power of 300W, closes one of power panel using relay, so ensure that standby work(when standby
Rate is less than 0.5W.Thus power panel meets design requirement：Power is big, thickness of thin and the low condition of stand-by power consumption.
Utility model content
The purpose of this utility model embodiment is to provide a kind of television set and its power panel circuit it is intended to solve present
The power panel of television set has meeting that power is big and thickness of thin simultaneously.
This utility model embodiment is achieved in that a kind of power panel circuit of television set, the power supply of described television set
Plate circuit includes TV mainboard and LED lamp bar, the power panel circuit of described television set also include respectively with described TV mainboard and LED
Main power board and auxiliary power plate that bar connects, when TV standby, described main power board provides voltage, institute for described TV mainboard
State auxiliary power plate to stop power supply.
The another object of this utility model embodiment is to provide a kind of television set, and described television set includes the electricity of television set
Source plate circuit, the power panel circuit of described television set includes TV mainboard and LED lamp bar, and the power panel circuit of described television set also wraps
Include the main power board being connected respectively and auxiliary power plate, when TV standby, described main power source with described TV mainboard and LED lamp bar
Plate provides voltage for described TV mainboard, and described auxiliary power plate is stopped power supply.
In this utility model embodiment, the power panel circuit of television set includes TV mainboard and LED lamp bar, described television set
Power panel circuit also include the main power board and the auxiliary power plate that are connected respectively with described TV mainboard and LED lamp bar, work as television set
When standby, main power board provides voltage for TV mainboard, and auxiliary power plate is stopped power supply, and thus can meet power panel power greatly,
Thickness of thin and the low requirement of stand-by power consumption.
Brief description
Fig. 1 is the structure chart of the power panel circuit of television set that this utility model embodiment provides.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
Fig. 1 shows the structure of the power panel circuit of the television set of electronic equipment that this utility model embodiment provides, and is
It is easy to illustrate, illustrate only the part related to this utility model embodiment.
A kind of power panel circuit of television set, the power panel circuit of described television set includes TV mainboard 1 and LED lamp bar 2, institute
The power panel circuit stating television set also includes the main power board 3 and the auxiliary power that are connected respectively with described TV mainboard 1 and LED lamp bar 2
Plate 4, when TV standby, described main power board 3 provides voltage for described TV mainboard 1, and described auxiliary power plate 4 is stopped power supply.
As this utility model one embodiment, described auxiliary power plate 4 connects AC power supplies by an AC input line, described auxiliary power
Plate 4 connects described main power board 3 also by AC switching stand and another AC input line, and described auxiliary power plate 4 also includes a control institute
State the relay 41 of auxiliary power plate 4 and AC power supplies break-make.
As this utility model one embodiment, described auxiliary power plate 4 includes the 2nd PFC and circuit of reversed excitation, and (in figure is not shown
Go out), described 2nd PFC and circuit of reversed excitation connect the power amplifier of described TV mainboard 1 by power amplifier supply lines, and described auxiliary power plate 4 passes through
Two LED output leads connect two LED lamp bar 2.
As this utility model one embodiment, described main power board 3 includes a PFC and circuit of reversed excitation, and (in figure is not shown
Go out), described main power board 3 connects described TV mainboard 1 by main board power supply control line, and described main power board 3 passes through Control
Line connects described relay 41, and described TV mainboard 1 connects described main power board 3, described main power source by a backlight switch machine holding wire
Plate 3 connects described auxiliary power plate 4 by another backlight switch machine holding wire.
As this utility model one embodiment, described main power board 3 connects other two also by other two LED output leads
LED lamp bar 2.
This utility model embodiment also provides a kind of television set, and described television set includes the power panel circuit of television set, institute
The power panel circuit stating television set includes TV mainboard 1 and LED lamp bar 2, the power panel circuit of described television set also include respectively with
The main power board 3 of described TV mainboard 1 and LED lamp bar 2 connection and auxiliary power plate 4, when TV standby, described main power board 3
There is provided voltage for described TV mainboard 1, described auxiliary power plate 4 is stopped power supply.
As this utility model one embodiment, described auxiliary power plate 4 connects AC power supplies by an AC input line, described auxiliary power
Plate 4 connects described main power board 3 also by AC switching stand and another AC input line, and described auxiliary power plate 4 also includes a control institute
State the relay 41 of auxiliary power plate 4 and AC power supplies break-make.
As this utility model one embodiment, described auxiliary power plate 4 includes the 2nd PFC and circuit of reversed excitation, and (in figure is not shown
Go out), described 2nd PFC and circuit of reversed excitation connect the power amplifier of described TV mainboard 1 by power amplifier supply lines, and described auxiliary power plate 4 passes through
Two LED output leads connect two LED lamp bar 2.
As this utility model one embodiment, described main power board 3 includes a PFC and circuit of reversed excitation, and (in figure is not shown
Go out), described main power board 3 connects described TV mainboard 1 by main board power supply control line, and described main power board 3 passes through Control
Line connects described relay 41, and described TV mainboard 1 connects described main power board 3, described main power source by a backlight switch machine holding wire
Plate 3 connects described auxiliary power plate 4 by another backlight switch machine holding wire.
As this utility model one embodiment, described main power board 3 connects other two also by other two LED output leads
LED lamp bar 2.
The operation principle of the power panel circuit of television set is：
AC power supplies is input to auxiliary power plate 4, and the AC switching stand on auxiliary power plate 4 is linked by AC input line simultaneously
Main power board 3, when standby, main power board 3 provides 5V voltage for TV mainboard 1, when TV mainboard 1 receives remote-controlled start-up instruction, TV
Mainboard 1 can provide STBY voltage to main power board 3 by main board power supply control line, main power board 3 will a PFC and
Circuit of reversed excitation is opened, and is in normal operating conditions, also can connect described relay 41 by Control line simultaneously, make relay
Closure switch after coil switch power, allow the exchange of auxiliary power plate 4 to electrically connect, open the 2nd PFC and circuit of reversed excitation, by power amplifier
The power amplifier that supply lines connects described TV mainboard 1 is powered, after main power board 3 and auxiliary power plate 4 can be in normal work, TV mainboard 1
The switching on and shutting down signal of backlight, the backlight electricity of such main power board 3 and auxiliary power plate 4 can be provided by backlight switch machine holding wire again
Portion begins to work, goes to light four lamp bars by four LED output leads respectively.In whole work process, effectively accomplish
Close auxiliary power plate 4 it is ensured that stand-by power consumption is within 0.5W when standby.
In this utility model embodiment, the power panel circuit of television set includes TV mainboard and LED lamp bar, described television set
Power panel circuit also include the main power board and the auxiliary power plate that are connected respectively with described TV mainboard and LED lamp bar, work as television set
When standby, main power board provides voltage for TV mainboard, and auxiliary power plate is stopped power supply, and thus can meet power panel power greatly,
Thickness of thin and the low requirement of stand-by power consumption.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in this utility model
Protection domain within.
Claims (10)
1. a kind of power panel circuit of television set is it is characterised in that the power panel circuit of described television set includes TV mainboard and LED
Lamp bar, the power panel circuit of described television set also includes main power board and the pair being connected respectively with described TV mainboard and LED lamp bar
Power panel, when TV standby, described main power board provides voltage for described TV mainboard, and described auxiliary power plate is stopped power supply.
2. the power panel circuit of television set as claimed in claim 1 is it is characterised in that described auxiliary power plate passes through an AC input
Line connects AC power supplies, and described auxiliary power plate connects described main power board, described secondary electricity also by AC switching stand and another AC input line
Source plate also includes the relay of a control described auxiliary power plate and AC power supplies break-make.
3. the power panel circuit of television set as claimed in claim 2 is it is characterised in that described auxiliary power plate includes the 2nd PFC
And circuit of reversed excitation, described 2nd PFC and circuit of reversed excitation connect the power amplifier of described TV mainboard, described auxiliary power plate by power amplifier supply lines
Connect two LED lamp bar by two LED output leads.
4. the power panel circuit of television set as claimed in claim 3 is it is characterised in that described main power board includes a PFC
And circuit of reversed excitation, described main power board connects described TV mainboard by main board power supply control line, and described main power board passes through relay
Control line connects described relay, and described TV mainboard connects described main power board, described main power source by a backlight switch machine holding wire
Plate connects described auxiliary power plate by another backlight switch machine holding wire.
5. the power panel circuit of television set as claimed in claim 4 is it is characterised in that described main power board is also by other two
Root LED output lead connects other two LED lamp bar.
6. a kind of television set is it is characterised in that described television set includes the power panel circuit of television set, the power supply of described television set
Plate circuit includes TV mainboard and LED lamp bar, the power panel circuit of described television set also include respectively with described TV mainboard and LED
Main power board and auxiliary power plate that bar connects, when TV standby, described main power board provides voltage, institute for described TV mainboard
State auxiliary power plate to stop power supply.
7. television set as claimed in claim 6 is it is characterised in that described auxiliary power plate connects AC power supplies by an AC input line,
Described auxiliary power plate connects described main power board also by AC switching stand and another AC input line, and described auxiliary power plate also includes one
Control the relay of described auxiliary power plate and AC power supplies break-make.
8. television set as claimed in claim 7 is it is characterised in that described auxiliary power plate includes the 2nd PFC and circuit of reversed excitation, institute
State the power amplifier that the 2nd PFC and circuit of reversed excitation connect described TV mainboard by power amplifier supply lines, it is defeated that described auxiliary power plate passes through two LED
Outlet connects two LED lamp bar.
9. television set as claimed in claim 8 is it is characterised in that described main power board includes a PFC and circuit of reversed excitation, institute
State main power board and described TV mainboard connect by main board power supply control line, described main power board by Control line connect described in continue
Electrical equipment, described TV mainboard connects described main power board by a backlight switch machine holding wire, and described main power board is by another backlight
Switching on and shutting down holding wire connects described auxiliary power plate.
10. television set as claimed in claim 9 is it is characterised in that described main power board is also by other two LED output leads
Connect other two LED lamp bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620961911.5U CN205992954U (en) | 2016-08-26 | 2016-08-26 | A kind of television set and its power panel circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620961911.5U CN205992954U (en) | 2016-08-26 | 2016-08-26 | A kind of television set and its power panel circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205992954U true CN205992954U (en) | 2017-03-01 |
Family
ID=58107293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620961911.5U Active CN205992954U (en) | 2016-08-26 | 2016-08-26 | A kind of television set and its power panel circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205992954U (en) |
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2016
- 2016-08-26 CN CN201620961911.5U patent/CN205992954U/en active Active
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