CN206099771U - Signal output unit - Google Patents
Signal output unit Download PDFInfo
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- CN206099771U CN206099771U CN201621147533.3U CN201621147533U CN206099771U CN 206099771 U CN206099771 U CN 206099771U CN 201621147533 U CN201621147533 U CN 201621147533U CN 206099771 U CN206099771 U CN 206099771U
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- circuit
- switch pipe
- signal
- controller
- input power
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Abstract
The utility model relates to a signal output unit, including input power, switch circuit and controller, switch circuit's input, the control end that switch circuit is connected to the controller are connected to the input power, and switch circuit's output is used for connecting signal reception equipment, the input power is used for output voltage to switch circuit, break -make that the controller can outlet driving signal control switch circuit to make switch circuit according to inputing voltage output pulse signal to the signal reception equipment that the power provided. When being applied to the disconnect -type mainboard of TV set with this signal output unit, can export the required control signal of disconnect -type mainboard by the analog control mainboard, improve product development efficiency.
Description
Technical field
This utility model is related to electronic device field, more particularly to a kind of signal output apparatus.
Background technology
TV SKD includes power supply mainboard, backlight drive circuit and control mainboard, wherein, power supply mainboard is used to power,
Backlight drive circuit is used to carry out backlight drive, and control mainboard can output control signals to backlight drive circuit, such as PS_ON letters
Number, BL_ON signals and ADJ signals.Generally, TV SKD is three-in-one mainboard (referring to Fig. 1) or separate type mainboard (referring to figure
2)；Three-in-one mainboard refers to power supply mainboard, backlight drive circuit and control mainboard connection same PCB (Printed Circuit
Board printed circuit boards), separate type mainboard refers to that power supply mainboard and backlight drive circuit are connected to same PCB and constitute single supply
Module, control mainboard is in another PCB.
The control signal for using control mainboard output is needed to carry out product test during single supply Development of Module.And for
Separate type mainboard, traditional development scheme is single supply module and control mainboard concurrent development, is even opened by different manufacturers
Send out.Therefore, the development phase of single supply module there is a problem of providing control signals without control mainboard or other tools, product is opened
Send out efficiency low.
Utility model content
Based on this, it is necessary to for the problems referred to above, there is provided a kind of signal output apparatus of raising product development efficiency.
A kind of signal output apparatus, including controller, input power and on-off circuit, the input of the on-off circuit connects
The input power is connect, the control end of the on-off circuit connects the controller, and the outfan of the on-off circuit is used to connect
Connect signal receiver；
The controller distinguishes output drive signal to the on-off circuit, and the on-off circuit receives the drive signal
On or off afterwards, to export default control signal to the signal receiver.
Above-mentioned signal output apparatus, input power is used to provide voltage, by the input of input power connecting valve circuit
End, the control end of controller connecting valve circuit, controller can with the break-make of output drive signal controlling switch circuit so that
The voltage output pulse signal that on-off circuit is provided according to input power is to signal receiver.By the signal output apparatus application
When the separate type mainboard of television set, the control signal required for control mainboard output separate type mainboard can be simulated, improve and produce
Product development efficiency.
Description of the drawings
Fig. 1 is the schematic diagram of three-in-one mainboard；
Fig. 2 is separate type mainboard relation schematic diagram；
Fig. 3 is the structured flowchart of signal output apparatus in an embodiment；
Fig. 4 is the circuit diagram of an embodiment breaker in middle circuit；
Fig. 5 is the signal of the PS_ON signals, BL_ON signals and ADJ signals of three on-off circuit output in an application examples
Figure.
Specific embodiment
With reference to Fig. 3, the signal output apparatus in an embodiment, including controller 110, input power 130 and on-off circuit
150, the input connection input power 130 of on-off circuit 150, the control end connection controller 110 of on-off circuit 150, switch
The outfan of circuit 150 is used to connect signal receiver 200.
The output drive signal of controller 110 to on-off circuit 150, the output voltage of input power 130 to on-off circuit 150,
On-off circuit 150 receives on or off after drive signal, and output pulse signal is to signal receiver 200.
Drive signal is used for the break-make of controlling switch circuit 150.Controller 110 can be according to predeterminated frequency, default duty
Than exporting corresponding drive signal, so as to the pulsewidth of the pulse signal of the output of controlling switch circuit 150.Specifically, on-off circuit
During 150 conducting, the voltage of the output of input power 130 is exported by on-off circuit 150, now corresponds to output high level；Open
When powered-down road 150 turns off, disconnect between input power 130 and signal receiver 200, now correspond to output low level.
The driving force of pulse signal is determined that the driving force of input power 130 is bigger by the driving force of input power 130, correspondence
The driving force of pulse signal is bigger.Compared to the output pulse signal of controller 110 is directly adopted, by adopting input power
130, can be with the restriction of the driving force of uncontrolled on-off circuit 150.
The return pulse signal of signal receiver 200 can be used for exploitation test, and for example, in an embodiment, signal is received and set
Standby 200 is the separate type mainboard of television set, is made up of power supply mainboard and backlight drive circuit, and on-off circuit 150 specifically carry on the back by connection
Light drive circuit.It is appreciated that in other embodiments, signal receiver 200 can also need arteries and veins to fill signal for other
Equipment.
Above-mentioned signal output apparatus, input power 130 is used to provide voltage, by the connecting valve circuit of input power 130
150 input, the control end of the connecting valve circuit 150 of controller 110, controller 110 can be opened with output drive signal control
The break-make on powered-down road 150, so that the voltage output pulse signal that on-off circuit 150 is provided according to input power 130 is to signal
Receiving device 200.When the signal output apparatus to be applied to the separate type mainboard of television set, control mainboard output point can be simulated
Control signal required for formula mainboard, improves product development efficiency.
In one embodiment, controller 110 is single-chip microcomputer.Single-chip Controlling effect is good, easy to use, can improve signal defeated
Go out the ease of use of device.
In one embodiment, input power 130 is the DC source that output voltage is 5V (volt).Thus, on-off circuit 150
The corresponding high level of pulse signal of output is 5V, and the driving force of pulse signal is big.It is appreciated that in other embodiments,
Input power 130 can also be the power supply of other voltages.
In one embodiment, with reference to Fig. 4, on-off circuit 150 includes first switch pipe Q1, second switch pipe Q2, first electric
Resistance R1, second resistance R2,3rd resistor R3 and the 4th resistance R4.In the present embodiment, first switch pipe Q1 and second switch pipe Q2
For audion.
The input of first switch pipe Q1 and one end connection of first resistor R1, and common port is used as on-off circuit 150
Input connects input power 130；The first resistor R1 other end connects the input of second switch pipe Q2.First switch pipe Q1's
Control end connects the input of second switch pipe Q2 by second resistance R2.The outfan of first switch pipe Q1 is used as on-off circuit
150 outfan.
3rd resistor R3 and the 4th resistance R4 connect, and common port connects the control end of second switch pipe Q2；3rd resistor
The R3 other ends connect controller 110, the 4th resistance R4 other ends ground connection as the control end of on-off circuit 150.Second switch pipe
The output head grounding of Q2.
By using first switch pipe Q1, second switch pipe Q2, first resistor R1, second resistance R2,3rd resistor R3 and
4th resistance R4 constitutes on-off circuit 150, simple structure, it is easy to accomplish.
In one embodiment, with continued reference to Fig. 4, on-off circuit 150 also include the first electric capacity C1, the second electric capacity C2, the 3rd
Electric capacity C3, the first diode D1 and the second diode D2.
First electric capacity C1 one end connects input power 130, and the other end connects control end, the one or two pole of first switch pipe Q1
The negative electrode of the negative electrode of pipe D1 and the second diode D2；The anode connection first of the anode of the first diode D1 and the second diode D2
The one end of resistance R1 away from input power 130.The control end of first switch pipe Q1 connects first switch pipe by the second electric capacity C2
The outfan of Q1.3rd electric capacity C3 one end connects the control end of second switch pipe Q2, other end ground connection.
The first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the one or two pole are used by increasing in on-off circuit 150
Pipe D1 and the second diode D2, can protect to on-off circuit 150, and can improve the standard that on-off circuit 150 realizes break-make
True property.
In one embodiment, the quantity of on-off circuit 150 is 3.Controller 110 exports respectively different drive signals extremely
Each on-off circuit 150, makes each on-off circuit 150 export different pulse signals respectively, to provide different demands.Thus, can
The scope of application of increase signal output apparatus.
In the present embodiment, the quantity of controller 110 and input power 130 is all connected with for one, i.e. multiple switch circuit 150
Same controller 110 and input power 130, thus, the use of device, reduces cost can be reduced.It is appreciated that in other realities
In applying example, controller 110 and input power 130 can also be identical with the quantity of on-off circuit 150, i.e. each on-off circuit
150 correspondence one controller 110 of connection and input power 130.
In one embodiment, above-mentioned signal output apparatus also include button (not shown) and the display of connection controller 110
Device (not shown).
Controller 110 receives operational order by button, defeated according to parameter information according to input instruction adjusting parameter information
Go out corresponding drive signal, and output parameter information is shown to display.For example, parameter information includes time, dutycycle
And frequency.User can pass through the operational order of operation key-press input parameter information, such as the time increases, dutycycle reduces, control
Device processed 110 is according to entering the operating instructions execution respective operations.Thus, user can be facilitated to be carried out according to the information that display shows
Parameter adjustment, can improve the convenience that user uses.
In the present embodiment, button includes the parameter selection key (not shown) of connection controller 110, (figure is not to increase button
Show), reduce button (not shown) and switch key (not shown).Parameter selection key is used in the corresponding multiple ginsengs of parameter information
Selection is redirected between numerical value, increasing button is used to increase the parameter value of the parameter information currently chosen, and reducing button is used to reduce
The parameter value of the parameter information currently chosen, switch key is used to controlling the startup optimization of controller 110 and out of service.
Control signal required for backlight drive circuit includes PS_ON signals, BL_ON signals and ADJ signals, most of electricity
It is as follows to three semaphore requests depending on mainboard：
1、t1>200ms (millisecond), t2>100ms, t3>50ms (t1, t2, t3 be respectively PS_ON signals, BL_ON signals and
The unlatching momentary intervals time of ADJ signals).
2nd, the level under correspondence PS_ON signals, BL_ON signals correspondence normal operating conditions is 2.5V-5V, corresponding standby shape
Level under state is 0V.
3rd, the high level of ADJ signals is 2.5～5V, and low level is 0V, and for square-wave signal, frequency is fixed, and can be 180Hz
(hertz) or 200Hz, dutycycle is adjustable, and span is 30%～100%.
In a concrete application example, above-mentioned signal output apparatus are used to provide pulse letter for the separate type mainboard of television set
Number.The quantity of on-off circuit 150 is 3, by carrying out to on-off circuit 150 to the burned existing known program of controller 110
Control.The ADJ signal dutyfactors of the wherein output of an on-off circuit 150 are that 1%-100% is adjustable, and frequency range is 150Hz-
250Hz is adjustable；Three on-off circuits 150 are corresponding, and to open momentary intervals time t1-t3 be that 20ms～1000ms is adjustable.Three are opened
The pulse signal high level of the output of powered-down road 150 is that 2.5V, 3.3V, 5V are optional.The three kinds of pulses exported in one concrete application example
The schematic diagram of signal is as shown in Figure 5.Thus, the control signal demand of separate type mainboard development process can be met, improve product and open
Send out efficiency.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, some deformations and improvement can also be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be defined by claims.
Claims (8)
1. a kind of signal output apparatus, it is characterised in that including controller, input power and on-off circuit, the on-off circuit
Input connect the input power, the control end of the on-off circuit connects the controller, the on-off circuit it is defeated
Go out end for connecting signal receiver；
The controller output drive signal to the on-off circuit, the input power output voltage to the on-off circuit,
The on-off circuit receives on or off after the drive signal, and output pulse signal is to the signal receiver.
2. signal output apparatus according to claim 1, it is characterised in that the controller is single-chip microcomputer.
3. signal output apparatus according to claim 1, it is characterised in that the input power is that output voltage is 5V's
DC source.
4. signal output apparatus according to claim 1, it is characterised in that the on-off circuit include first switch pipe,
Second switch pipe, first resistor, second resistance, 3rd resistor and the 4th resistance；
The input of the first switch pipe and one end connection of the first resistor, and common port is used as the on-off circuit
Input connects the input power, and the first resistor other end connects the input of the second switch pipe, and described first
The control end of switching tube connects the input of the second switch pipe, the output of the first switch pipe by the second resistance
Hold the outfan as the on-off circuit；
The 3rd resistor and the 4th resistant series, and common port connects the control end of the second switch pipe, described the
The three resistance other ends connect the controller, the 4th resistance other end ground connection, institute as the control end of the on-off circuit
State the output head grounding of second switch pipe.
5. signal output apparatus according to claim 4, it is characterised in that the on-off circuit also include the first electric capacity,
Second electric capacity, the 3rd electric capacity, the first diode and the second diode；
Described first electric capacity one end connects the input power, the other end connect the control end of the first switch pipe, described the
The sun of the negative electrode of the negative electrode of one diode and second diode, the anode of first diode and second diode
Pole connects the one end of the first resistor away from the input power, and the control end of the first switch pipe is electric by described second
Hold the outfan of the connection first switch pipe, described 3rd electric capacity one end connects the control end of the second switch pipe, another
End ground connection.
6. signal output apparatus according to claim 1, it is characterised in that the quantity of the on-off circuit is 3.
7. signal output apparatus according to claim 1, it is characterised in that also including the display for connecting the controller
And button.
8. signal output apparatus according to claim 7, it is characterised in that the button includes the connection controller
Parameter selection key, increase button, reduction button and switch key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621147533.3U CN206099771U (en) | 2016-10-21 | 2016-10-21 | Signal output unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621147533.3U CN206099771U (en) | 2016-10-21 | 2016-10-21 | Signal output unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099771U true CN206099771U (en) | 2017-04-12 |
Family
ID=58484424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621147533.3U Active CN206099771U (en) | 2016-10-21 | 2016-10-21 | Signal output unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206099771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465340A (en) * | 2017-08-11 | 2017-12-12 | 昊翔电能运动科技(昆山)有限公司 | Power-supply management system and method |
| CN112562574A (en) * | 2020-12-01 | 2021-03-26 | Tcl华星光电技术有限公司 | Switch module and display device |
-
2016
- 2016-10-21 CN CN201621147533.3U patent/CN206099771U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465340A (en) * | 2017-08-11 | 2017-12-12 | 昊翔电能运动科技(昆山)有限公司 | Power-supply management system and method |
| CN112562574A (en) * | 2020-12-01 | 2021-03-26 | Tcl华星光电技术有限公司 | Switch module and display device |
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