CN105472281B - Device standby circuit, television standby circuit and TV - Google Patents
Device standby circuit, television standby circuit and TV Download PDFInfo
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- CN105472281B CN105472281B CN201511010859.1A CN201511010859A CN105472281B CN 105472281 B CN105472281 B CN 105472281B CN 201511010859 A CN201511010859 A CN 201511010859A CN 105472281 B CN105472281 B CN 105472281B
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- circuit
- standby
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- control circuit
- control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/63—Generation or supply of power specially adapted for television receivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
- H04N21/42221—Transmission circuitry, e.g. infrared [IR] or radio frequency [RF]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
- H04N21/42224—Touch pad or touch panel provided on the remote control
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention discloses a kind of device standby circuit, television standby circuit and TVs, realize a kind of Opportunity awaiting control for linear mode that long-acting, at low cost and experience effect is good.Including signal transceiver circuit, comparison circuit, edge triggered flip flop and ON-OFF control circuit;Signal transceiver circuit includes signal projector and signal receiver;The first input end of comparison circuit connects power supply, the signal output end of second input terminal connection signal receiver of comparison circuit, the input terminal and triggering input terminal of the output end connection edge triggered flip flop of comparison circuit, the control terminal of the output end connection switch control circuit of edge triggered flip flop, the input terminal of ON-OFF control circuit connects standby trigger signal source, and the output end of ON-OFF control circuit connects readiness control circuit;When ON-OFF control circuit is connected, readiness control circuit is enabled to receive standby trigger signal, to control the standby of equipment or booting.
Description
Technical field
The invention belongs to technical field of circuit design, specifically, being to be related to a kind of device standby circuit, television standby electricity
Road and TV.
Background technique
Equipment it is standby usually there are two types of implementation, it is a kind of for by the standby of remote controller control device and starting, separately
A kind of switch key realization in operation equipment.
Switch key is mechanical key, the problem of will appear key damage is pressed for a long time, although touch key-press can be avoided
Mechanical key is but at high cost due to pressing the insensitive problem occurred for a long time, and it is limited to touch effect.
Summary of the invention
This application provides a kind of device standby circuit, television standby circuit and TV, binding signal transmitting and signal are connect
It receives, by touch signal transmitter and signal receiver, realizes a kind of Opportunity awaiting control for linear that long-acting, at low cost and experience effect is good
Mode.
In order to solve the above technical problems, the application is achieved using following technical scheme:
It is proposed a kind of device standby circuit, including readiness control circuit, signal transceiver circuit, comparison circuit, edge
Trigger and ON-OFF control circuit;The signal transceiver circuit includes signal projector and signal receiver;The comparison
The first input end of circuit connects power supply, and the second input terminal of the comparison circuit connects the signal of the signal receiver
Output end, the output end of the comparison circuit connect the input terminal and triggering input terminal of the edge triggered flip flop, the edge touching
The output end of hair device connects the control terminal of the ON-OFF control circuit, and the input terminal of the ON-OFF control circuit connects standby triggering
The output end of signal source, the ON-OFF control circuit connects the readiness control circuit;When the ON-OFF control circuit is connected, make
Standby trigger signal can be received by obtaining the readiness control circuit, to control the standby of equipment or booting.
Further, the device standby circuit further includes equipment governor circuit and frequency selection circuit;The frequency selection circuit
Input terminal connects the signal output end of the signal receiver, and the output end of the frequency selection circuit connects the equipment governor circuit
A port I/O;The another port I/O of the equipment governor circuit connects the readiness control circuit;The equipment master control electricity
The frequency-selecting carrier wave that roadbed is exported in the frequency selection circuit output end exports standby trigger signal to the readiness control circuit, makes
Obtain the standby or booting of the readiness control circuit control equipment.
Further, the signal projector and signal receiver are installed on the inside of device housings, opposite installation on shell
Position offers beam orifice;And the relatively described signal projector of the signal receiver is installed inside equipment.
Further, the comparison circuit includes comparator;The non-inverting input terminal of the comparator is the comparison circuit
First input end, by pull-up resistor connect power supply, be grounded by pull down resistor;The inverting input terminal of the comparator
For the second input terminal of the comparison circuit;The output end of the comparator is the output end of the comparison circuit, passes through current limliting
Resistance connects the triggering input terminal and input terminal of the edge triggered flip flop.
Further, the edge triggered flip flop is edge D flip-flop.
Further, the ON-OFF control circuit includes optocoupler and NMOS tube;The input terminal of the optocoupler passes through current limliting electricity
Resistance connects the output end of the edge triggered flip flop, and the output end of the optocoupler connects the grid of the NMOS tube by current-limiting resistance
And the readiness control circuit, the source electrode of the NMOS tube are grounded by pull down resistor;The optocoupler also passes through current-limiting resistance
The standby trigger signal source is connected, the drain electrode of the NMOS tube connects the standby trigger signal source.
Further, the ON-OFF control circuit further includes protection diode, the anode connection institute of the protection diode
The source electrode of NMOS tube is stated, the cathode of the protection diode is grounded by current-limiting resistance.
A kind of television standby circuit is proposed, including above-mentioned device standby circuit.Device standby circuit includes Opportunity awaiting control for linear
Circuit, signal transceiver circuit, comparison circuit, edge triggered flip flop and ON-OFF control circuit;The signal transceiver circuit
Including signal projector and signal receiver;The first input end of the comparison circuit connects power supply, the comparison circuit
The second input terminal connect the signal output end of the signal receiver, the output end of the comparison circuit connects the edge touching
The input terminal and triggering input terminal, the output end of the edge triggered flip flop for sending out device connect the control terminal of the ON-OFF control circuit,
The input terminal of the ON-OFF control circuit connects standby trigger signal source, the output end connection of the ON-OFF control circuit it is described to
Machine control circuit;When the ON-OFF control circuit is connected, the readiness control circuit is enabled to receive standby trigger signal,
To control the standby of equipment or booting.
A kind of TV is proposed, including above-mentioned television standby circuit.Television standby circuit includes readiness control circuit, signal
Transceiver circuit, comparison circuit, edge triggered flip flop and ON-OFF control circuit;The signal transceiver circuit includes signal hair
Emitter and signal receiver;The first input end of the comparison circuit connects power supply, the second input of the comparison circuit
End connects the signal output end of the signal receiver, the output end of the comparison circuit connects the defeated of the edge triggered flip flop
Enter end and triggering input terminal, the output end of the edge triggered flip flop connects the control terminal of the ON-OFF control circuit, the switch
The input terminal of control circuit connects standby trigger signal source, and the output end of the ON-OFF control circuit connects the Opportunity awaiting control for linear electricity
Road;When the ON-OFF control circuit is connected, the readiness control circuit is enabled to receive standby trigger signal, is set with control
Standby standby or booting.
Further, the signal projector and signal receiver are installed at the remote-control indicating lamp of TV.
Compared with prior art, the advantages of the application and good effect is: the embodiment of the present application proposes a kind of device standby
Circuit, television standby circuit and TV, increase signal transceiver circuit, comparison are electric on the basis of existing readiness control circuit
Road, edge triggered flip flop and ON-OFF control circuit when user needs to control device standby, use hand touch signal transmitter and signal
The case surface of receiver installation site, signal projector transmitting signal wire by hand blocking and return, the signal quilt of return
Signal receiver receives, and then the electric signal of signal receiver output is loaded into the second input terminal of comparison circuit;Comparison circuit
Thus the voltage of jump is exported, so that edge triggered flip flop exports high level, so that ON-OFF control circuit is connected, after conducting
ON-OFF control circuit input standby touch signal, after readiness control circuit receives the standby touch signal, control equipment is from opening
Machine state switch to it is standby, or from standby mode switch to be switched on work.As it can be seen that the device standby circuit that the embodiment of the present application proposes,
As long as the control to device standby or booting can be realized with the position where hand touch signal transmitter and signal receiver,
Compared to touch key-press, it is this be similar to operation touch key-press Opportunity awaiting control for linear mode it is at low cost, compared to mechanical key, it is this to
Machine control mode is hardly damaged using long-acting, realizes a kind of Opportunity awaiting control for linear mode that long-acting, at low cost and experience effect is good.
And in the embodiment of the present application, after increasing equipment governor circuit and frequency selection circuit, frequency selection circuit can be selected
The control signal of remote controler transmitting excludes the signal that user blocks signal projector return with hand, and the remote controler of selection is sent out
The control signal penetrated is sent to equipment governor circuit, and equipment governor circuit is sent out after implementing judgement decoding to readiness control circuit
Standby trigger signal is sent, readiness control circuit controls the standby of equipment or booting according to standby trigger signal, this makes standby
Circuit can also receive standby or booting the control instruction of remote controler transmitting, improve the practicability of device standby circuit.
After the detailed description of the application embodiment is read in conjunction with the figure, other features and advantages of the application will become more
Add clear.
Detailed description of the invention
Fig. 1 is the circuit frame figure for the device standby circuit that the embodiment of the present application proposes;
Fig. 2 is the circuit frame figure for the device standby circuit that the embodiment of the present application proposes;
Fig. 3 is a kind of specific implementation circuit diagram for the device standby circuit that the embodiment of the present application proposes.
Specific embodiment
The specific embodiment of the application is described in more detail with reference to the accompanying drawing.
As shown in Figure 1, the circuit block diagram of the device standby circuit proposed for the embodiment of the present application, equipment is existing any
Kind has the electronic products such as the electronic device, such as TV, set-top box of idle function.
The device standby circuit includes readiness control circuit U5, signal transceiver circuit, comparison circuit U1, edging trigger
Device U2 and ON-OFF control circuit 11.
Signal transceiver circuit includes signal projector D1 and signal receiver D2;The first input end of comparison circuit connects
Connect power supply VCC, the signal output end of the second input terminal connection signal receiver D2 of comparison circuit, the output of comparison circuit
The input terminal D of end connection edge triggered flip flop U2 and the output end connection switch of triggering input terminal CP, edge triggered flip flop U2 control electricity
The input terminal of the control terminal Ctl on road, ON-OFF control circuit connect standby trigger signal source Sig_standby, ON-OFF control circuit
11 output end connects readiness control circuit U5;When ON-OFF control circuit 11 is connected, readiness control circuit U5 is received
To standby trigger signal, to control the standby of equipment or booting, that is, controlling device standby in device power-up, being waited in equipment
When machine, device power-up is controlled.
Signal projector D1 and signal receiver D2 is installed on the inside of device housings, and relative mounting location offers on shell
Beam orifice;And signal receiver relative signal transmitter is installed inside equipment.This relatively close inside of signal receiver
Setting signal receiver can be made to be easier to receive reflected signal when user's hand blocks signal projector.
No matter equipment is in open state or standby mode, and the signal of signal projector transmitting is returned not being blocked
Hui Shi, signal receiver make the output level of comparison circuit there is no jumping because signal is not received by, then edge
Trigger exports low level, and ON-OFF control circuit disconnects the access of standby trigger signal source and readiness control circuit, so that standby
Control circuit does not work.
User is installed when needing to control device standby or booting using hand touch signal transmitter and signal receiver
The case surface of position, signal projector transmitting signal by hand blocking and return, the signal of return is connect by signal receiver
It receives, and then signal receiver is connected, so that being loaded into the voltage decline of the second input terminal of comparison circuit, comparison circuit is thus defeated
Level is jumped out, so that edge triggered flip flop exports high level, so that ON-OFF control circuit is connected, the switch control after conducting
Circuit processed inputs standby touch signal, and after readiness control circuit receives the standby touch signal, control equipment turns from open state
It is standby, or switchs to the work that is switched on from standby mode.
As it can be seen that the device standby circuit that the embodiment of the present application proposes, as long as being received with hand touch signal transmitter and signal
The control to device standby or booting can be realized in position where device, compares touch key-press, and this touch similar to operation is pressed
The Opportunity awaiting control for linear mode of key is at low cost, and compared to mechanical key, this Opportunity awaiting control for linear mode is hardly damaged using long-acting, realizes
A kind of Opportunity awaiting control for linear mode long-acting, at low cost and experience effect is good.
It is above-mentioned, readiness control circuit be according to the standby trigger signal of input, facilities and equipments switch to from booting it is standby, or from
The standby circuit for switching to booting;The comparison of two inputs according to above-mentioned comparison circuit, exports high level or low level control
The circuit of signal;Above-mentioned ON-OFF control circuit is the high-level control signal or low level control signal inputted according to control terminal,
The circuit of connection or truncation between control input and output;The embodiment of the present application all not limits.Above-mentioned signal transmitting
Device and signal receiver, preferably infrared transmitter and infrared remote receiver.
The preferred edge D flip-flop of edge triggered flip flop, edge D flip-flop allow to be added in a flash before coming in CP triggering defeated
Enter signal, in this way, the time that input terminal is disturbed is greatly lowered a possibility that greatly shortening, be disturbed maloperation, therefore,
The circuit anti-interference being made of edge D flip-flop is stronger, works in practical work environment more stable, reliable.
As shown in Fig. 2, the device standby circuit that the embodiment of the present application proposes further includes equipment governor circuit U4 and frequency-selecting electricity
Road 12;The output end connection of the signal output end of the input terminal connection signal receiver D2 of frequency selection circuit 12, frequency selection circuit 12 is set
A port I/O of standby governor circuit U4;The another port I/O of equipment governor circuit U4 connects readiness control circuit U5;Equipment master
The frequency-selecting carrier wave that control circuit U 4 is exported based on 12 output end of frequency selection circuit, exports standby trigger signal to readiness control circuit, makes
Obtain the standby or booting of readiness control circuit control equipment.
It is above-mentioned, equipment governor circuit and frequency selection circuit are increased in device standby circuit, frequency selection circuit is configured to
Select the signal of setpoint frequency, such as 38KHZ infrared remote-controlled signal used in existing TV.Letter is blocked using hand in user
When number transmitter, it is the infrared signal of non-setpoint frequency that signal receiver is received, then frequency selection circuit not selects, device standby
Circuit is according to above-mentioned content efforts, and when user uses the remote controller control device of equipment standby or booting, signal is received
What device received is the infrared signal of the setpoint frequency of remote controler transmitting, then the infrared signal of setpoint frequency passes through frequency-selecting electricity first
Road is simultaneously transferred to equipment governor circuit, without being triggered to comparison circuit.
By frequency selection circuit, the signal that user blocks signal projector return with hand is excluded, and the remote controler of selection is sent out
The control signal penetrated is sent to equipment governor circuit, and equipment governor circuit is sent out after implementing judgement decoding to readiness control circuit
Standby trigger signal is sent, readiness control circuit controls the standby of equipment or booting according to standby trigger signal, this makes standby
Circuit can also receive standby or booting the control instruction of remote controler transmitting, improve the practicability of device standby circuit.Choosing
Frequency circuit selects any circuit that can select setpoint frequency signal, and the embodiment of the present application not limits.
As shown in figure 3, a specific embodiment circuit diagram of the device standby circuit proposed for the embodiment of the present application, signal
Signal projector and signal receiver in transceiver circuit select infrared transmitter and infrared remote receiver.Wherein, signal is sent out
It penetrates and receives in circuit, infrared transmitter D1 passes through pull-up electricity by pull-up resistor R1 connection power supply VCC, infrared remote receiver D2
Hinder R2 connection power supply VCC.
The signal output end of infrared remote receiver D2 passes through the second input terminal of current-limiting resistance R15 connection comparison circuit.
Comparison circuit is made of comparator u1 and configuration circuit, and the non-inverting input terminal of comparator is the first defeated of comparison circuit
Enter end, by pull-up resistor R6 connection power supply VCC, is grounded by pull down resistor R7;The inverting input terminal of comparator be than
Compared with the second input terminal of circuit, it is connect by current-limiting resistance R15 with infrared remote receiver D2 output end;The output end of comparator be than
Compared with the output end of circuit, pass through the triggering input terminal CP and input terminal D of current-limiting resistance R8 connection edge triggered flip flop U2.
ON-OFF control circuit includes optocoupler U3 and NMOS tube Q1;The input terminal 1 of optocoupler passes through current-limiting resistance R9 connection edge
The output end of trigger, grid and the Opportunity awaiting control for linear electricity that the output end 4 of optocoupler U3 passes through current-limiting resistance R12 connection NMOS tube Q1
The source electrode of the port I/O on road, NMOS tube Q1 is grounded by pull down resistor R13;It is standby that optocoupler U3 also passes through current-limiting resistance R11 connection
The drain electrode of trigger signal source Sig_standby, NMOS tube Q1 connect standby trigger signal source Sig_standby.
The ON-OFF control circuit further includes protection diode D4, the source of the anode connection NMOS tube Q1 of protection diode D4
The cathode of pole, protection diode D4 is grounded by current-limiting resistance R13.
Frequency selection circuit is made of resistance R3, R4, R5 and capacitor C1, C2 and C3;The one end R3 is connect with the one end R15, the other end
It is connect with R4, R4 other end ground connection;One end that the one end R5 connection R3 is connect with R15, the other end of R5 connect equipment governor circuit
The port I/O and the one end capacitor C2, the capacitor C2 other end connect the one end C3, the C3 other end ground connection;The one end capacitor C1 connects R3
With the junction of R4, the other end connects the junction of C2 and C3.
No matter equipment is in open state or standby mode, and the infrared ray of infrared transmitter D1 transmitting is not being hidden
When gear returns, infrared remote receiver D2 because be not received by infrared signal and by, by the configuration to resistance R2, R15 and R6,
So that the inverting input terminal voltage of comparator is higher than non-inverting input terminal voltage, then comparator exports low level, so that edging trigger
Device U2 exports low level, then optocoupler U3 and NMOS tube Q1 cut-off, so that standby trigger signal source can not input readiness control circuit,
Then readiness control circuit does not work.
User touches infrared transmitter D1 and infrared remote receiver D2 when needing to control device standby or booting, using hand
The case surface of installation site, infrared transmitter transmitting infrared ray by hand blocking and return, the infrared signal of return is red
Outer receiver D2 is received, and infrared remote receiver D2 is opened, due to it is received be not the setpoint frequency of such as 38KHZ, then frequency selection circuit
It does not work, because of the opening of infrared remote receiver, is loaded into the voltage decline of the inverting input terminal of comparator, is less than non-inverting input terminal
Voltage, then it is high level output that the output end of comparator is jumped from low level, so that edge triggered flip flop U2 exports high level, in turn
So that optocoupler U3 and NMOS tube Q1 are connected, and then standby trigger signal source and readiness control circuit U5 are turned on, so that standby
Trigger signal source inputs readiness control circuit as standby trigger signal, after readiness control circuit receives the standby touch signal,
Control equipment switch to from open state it is standby, or from standby mode switch to be switched on work.
If user uses remote control device device power-up or standby, it is remotely controlled the remote signal quilt of the setpoint frequency of sending
Infrared remote receiver D2 is received, and due to the presence of frequency selection circuit, received infrared signal, which passes through frequency selection circuit first and is transferred to, to be set
Standby governor circuit U4, without being triggered to comparator, equipment governor circuit U4(can be the main control chip of equipment) judgement decoding
Standby trigger signal is sent to readiness control circuit U5 by the port I/O again afterwards, readiness control circuit receives standby triggering
After signal, control equipment switch to from open state it is standby, or from standby mode switch to be switched on work.
It should be noted that can be broken again since standby trigger signal each time is loaded into readiness control circuit later
It opens, so needing to pin infrared transmitter and infrared remote receiver certain time to realize stable standby or power-on operation
It realizes, such as 1 second.
Based on above-mentioned device standby circuit, the embodiment of the present application is directed to tv product, proposes a kind of television standby circuit
With the TV for using television standby circuit, design method is identical as above-mentioned device standby circuit.In tv product, signal hair
Emitter and signal receiver are preferably mounted at the remote-control indicating lamp of TV, and user is needing to control television standby or booting
When, need to only touch indicator light can be realized the standby of TV or booting.
The device standby circuit and television standby circuit that above-mentioned the embodiment of the present application proposes, cleverly signal projector and
Signal receiver is independently mounted at equipment, such as the designated position of TV ontology simultaneously, such as at indicator light, and wherein signal is sent out
Emitter, to be easier to receive reflected signal, is needing to control inside outside, the relatively close equipment of signal receiver
When television standby or booting, as long as being touched at indicator light with hand, by reflect the signal that emits of signal projector to
Signal receiver is realized and is controlled the standby of TV or booting, is not influenced signal receiver but and is normally received remote controler transmission
Remote signal, to be realized with a low cost the high-touch feature of " touch key-press ", service life is long-acting, and improve user uses body
It tests, improves the product quality of TV.
It should be noted that the above description is not a limitation of the present invention, the present invention is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made within the essential scope of the present invention, are also answered
It belongs to the scope of protection of the present invention.
Claims (10)
1. a kind of device standby circuit, including readiness control circuit, which is characterized in that further include signal transceiver circuit, ratio
Compared with circuit, edge triggered flip flop and ON-OFF control circuit;
The signal transceiver circuit includes signal projector and signal receiver;The first input end of the comparison circuit connects
Power supply is connect, the second input terminal of the comparison circuit connects the signal output end of the signal receiver, and the comparison is electric
The output end on road connects the input terminal and triggering input terminal of the edge triggered flip flop, and the output end of the edge triggered flip flop connects institute
The control terminal of ON-OFF control circuit is stated, the input terminal of the ON-OFF control circuit connects standby trigger signal source, the switch control
The output end of circuit processed connects the readiness control circuit;When the ON-OFF control circuit is connected, so that the Opportunity awaiting control for linear is electric
Road can receive standby trigger signal, to control the standby of equipment or booting;
When needing to control device standby or booting, the outer of hand touch signal transmitter and signal receiver installation site is used
Shell surface, signal projector transmitting signal by hand blocking and return, the signal of return is received by signal receiver, Jin Erxin
The conducting of number receiver, so that being loaded into the voltage decline of the second input terminal of comparison circuit, thus comparison circuit export jump electric
Flat, so that edge triggered flip flop exports high level, so that ON-OFF control circuit is connected, the ON-OFF control circuit after conducting is defeated
Enter standby touch signal, after readiness control circuit receives the standby touch signal, control equipment switch to from open state it is standby, or
Switch to the work that is switched on from standby mode.
2. device standby circuit according to claim 1, which is characterized in that the device standby circuit further includes equipment master
Control circuit and frequency selection circuit;The input terminal of the frequency selection circuit connects the signal output end of the signal receiver, the frequency-selecting
The output end of circuit connects a port I/O of the equipment governor circuit;The another port I/O of the equipment governor circuit connects
The readiness control circuit;
The frequency-selecting carrier wave that the equipment governor circuit is exported based on the frequency selection circuit output end exports standby trigger signal to institute
Readiness control circuit is stated, so that the standby or booting of readiness control circuit control equipment.
3. device standby circuit according to claim 1, which is characterized in that the signal projector and signal receiver peace
Loaded on the inside of device housings, relative mounting location offers beam orifice on shell;And the relatively described signal of the signal receiver
Transmitter is installed inside equipment.
4. device standby circuit according to claim 1, which is characterized in that the comparison circuit includes comparator;It is described
The non-inverting input terminal of comparator is the first input end of the comparison circuit, power supply is connected by pull-up resistor, under
Pull-up resistor ground connection;The inverting input terminal of the comparator is the second input terminal of the comparison circuit;The output of the comparator
End is the output end of the comparison circuit, and the triggering input terminal and input terminal of the edge triggered flip flop are connected by current-limiting resistance.
5. device standby circuit according to claim 1, which is characterized in that the edge triggered flip flop is edge D flip-flop.
6. device standby circuit according to claim 1, which is characterized in that the ON-OFF control circuit include optocoupler and
NMOS tube;
The input terminal of the optocoupler connects the output end of the edge triggered flip flop by current-limiting resistance, and the output end of the optocoupler is logical
Grid and the readiness control circuit that current-limiting resistance connects the NMOS tube are crossed, the source electrode of the NMOS tube passes through drop-down electricity
Resistance ground connection;The optocoupler also passes through current-limiting resistance and connects the standby trigger signal source, described in the drain electrode connection of the NMOS tube
Standby trigger signal source.
7. device standby circuit according to claim 6, which is characterized in that the ON-OFF control circuit further includes protection two
Pole pipe, the anode of the protection diode connect the source electrode of the NMOS tube, and the cathode of the protection diode passes through current limliting electricity
Resistance ground connection.
8. a kind of television standby circuit, which is characterized in that including the described in any item device standby circuits of such as claim 1-7.
9. a kind of TV, which is characterized in that including television standby circuit as claimed in claim 8.
10. TV according to claim 9, which is characterized in that the signal projector and signal receiver are installed on electricity
Depending on remote-control indicating lamp at.
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CN201511010859.1A CN105472281B (en) | 2015-12-30 | 2015-12-30 | Device standby circuit, television standby circuit and TV |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US5953080A (en) * | 1997-09-09 | 1999-09-14 | Thomson Consumer Electronics, Inc. | Standby circuit for a television |
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CN205304969U (en) * | 2015-12-30 | 2016-06-08 | 歌尔声学股份有限公司 | Equipment stand -by circuit, TV stand -by circuit and TV |
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CN104238421A (en) * | 2014-09-16 | 2014-12-24 | 福建捷联电子有限公司 | Method and circuit for achieving electronic product zero power consumption standby |
CN104301643A (en) * | 2014-09-22 | 2015-01-21 | 青岛歌尔声学科技有限公司 | Television LLC topology direct standby low-power-dissipation circuit |
CN104917982A (en) * | 2015-05-20 | 2015-09-16 | 青岛歌尔声学科技有限公司 | Standby circuit and television set with same |
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