CN206441115U - Starting key circuit and electronic equipment - Google Patents
Starting key circuit and electronic equipment Download PDFInfo
- Publication number
- CN206441115U CN206441115U CN201621443863.7U CN201621443863U CN206441115U CN 206441115 U CN206441115 U CN 206441115U CN 201621443863 U CN201621443863 U CN 201621443863U CN 206441115 U CN206441115 U CN 206441115U
- Authority
- CN
- China
- Prior art keywords
- circuit
- switch
- starting
- signal
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Keying Circuit Devices (AREA)
Abstract
The utility model discloses a kind of starting key circuit and electronic equipment, and the starting key circuit includes feeder ear, the pull-up resistor being connected successively with feeder ear, the starting-up signal input for being used to be connected with standby power, and starting-up signal output end；Starting key circuit also includes：First switch detects circuit, and its power end is connected with feeder ear, and its test side is connected with starting-up signal input；Second switch detects circuit, and its power end is connected with feeder ear, and its test side is connected with starting-up signal input；On-off circuit, its controlled end detects that the output end of circuit is connected with second switch, and its input detects that the output end of circuit is connected with first switch, and its output end is connected with starting-up signal output end.The utility model realize starting key circuit need not using CPU can normal boot-strap so that reduce CPU it is standby when idling consumption, more energy-conserving and environment-protective.
Description
Technical field
The utility model is related to starting key field of circuit technology, and more particularly to a kind of starting key circuit and electronics are set
It is standby.
Background technology
At present, the electronic equipment such as existing television set uses parallel button operation mode mostly：One pull-up resistor
Connect it is multiple it is in parallel pull down switch to switch different voltage, then voltage swing judged by CPU come recognize it is different by
Key is instructed, to complete different button operations.
But, CPU is needed when standby to consume certain energy, and if CPU power supply is disconnected, electronics is set
Standby start-up command can not be realized.
Utility model content
Main purpose of the present utility model is to propose a kind of starting key circuit and electronic equipment, it is intended to reduce electronic equipment
In CPU stand-by power consumptions.
To achieve the above object, the utility model proposes a kind of starting key circuit, including for being connected with standby power
Feeder ear, the pull-up resistor being connected successively with the feeder ear, starting-up signal input, and for exporting starting-up signal
Starting-up signal output end；The starting key circuit also includes：
First switch detects circuit, and the power end of first switch detection circuit is connected with the feeder ear, described the
The test side of one switch detection circuit is connected with the starting-up signal input；The first switch detection circuit is used in detection
During to starting-up signal, corresponding first trigger signal is exported；
Second switch detects circuit, and the power end of second switch detection circuit is connected with the feeder ear, described the
The test side of two switch detection circuits is connected with the starting-up signal input；The second switch detection circuit is used in detection
During to the starting-up signal, corresponding second trigger signal is exported；
On-off circuit, the controlled end of the on-off circuit detects that the output end of circuit is connected with the second switch, described
The input of on-off circuit and the first switch detect that the output end of circuit is connected, the output end of the on-off circuit with it is described
Starting-up signal output end is connected；
The on-off circuit, it is when being used to receive first trigger signal at the same time for receiving at the same time and described
Second trigger signal is opened, and exports starting-up signal to signal output part.Preferably, first switch detection circuit includes the
One partial pressure unit and first switch pipe, the input of first partial pressure unit detect the power supply of circuit for the first switch
End, the output end of first partial pressure unit is connected with the controlled end of the first switch pipe, the input of the first switch pipe
The test side that circuit is detected for the first switch is held, the output end of the first switch pipe detects circuit for the first switch
Output end.
Preferably, first partial pressure unit includes second resistance and 3rd resistor, and the first end of the second resistance is
The input of first partial pressure unit, the second end of the second resistance is the output end of first partial pressure unit, and with
The first end connection of the 3rd resistor；The second end ground connection of the 3rd resistor.
Preferably, the second switch detection circuit includes the second partial pressure unit and second switch pipe, second partial pressure
The input of unit is the power end that the second switch detects circuit, the output end of second partial pressure unit and described second
The controlled end connection of switching tube, the input of the second switch pipe detects the test side of circuit for the second switch, described
The output end of second switch pipe is the output end that the second switch detects circuit.
Preferably, second partial pressure unit includes the 4th resistance and the 5th resistance, and the first end of the 4th resistance is
The input of second partial pressure unit, the second end of the 4th resistance is the output end of second partial pressure unit, and with
The first end connection of 5th resistance；The second end ground connection of 5th resistance.
Preferably, the on-off circuit includes current-limiting resistance and the 3rd switching tube, and the first end of the current-limiting resistance is institute
The controlled end of on-off circuit is stated, the second end of the current-limiting resistance is connected with the controlled end of the 3rd switching tube；Described 3rd
The input of switching tube is the input of the on-off circuit, and the output end of the 3rd switching tube is the defeated of the on-off circuit
Go out end.
Preferably, the first switch pipe, second switch pipe and the 3rd switching tube are PNP type triode.
Preferably, the key-press circuit for switch also include capacitor, the capacitor be connected in series in the feeder ear with
Between the controlled end of the first switch pipe.
Preferably, the key-press circuit for switch also includes pull down resistor, and the pull down resistor is connected in series in the switch
Between the controlled end and ground of circuit.
The utility model also proposes a kind of electronic equipment, and the electronic equipment includes standby power and start as described above
Key circuit, the starting key circuit connects including the feeder ear for being connected with the standby power, successively with the feeder ear
Pull-up resistor, the starting-up signal input connect, and for exporting the starting-up signal output end of starting-up signal；The starting key
Circuit also includes：First switch detects circuit, and the power end of the first switch detection circuit is connected with the feeder ear, described
The test side of first switch detection circuit is connected with the starting-up signal input；The first switch detection circuit is used in inspection
When measuring starting-up signal, corresponding first trigger signal is exported；Second switch detects circuit, the second switch detection circuit
Power end is connected with the feeder ear, and the test side of the second switch detection circuit is connected with the starting-up signal input；
The second switch detection circuit is used for when detecting the starting-up signal, exports corresponding second trigger signal；Switch electricity
Road, the controlled end of the on-off circuit detects that the output end of circuit is connected with the second switch, the input of the on-off circuit
Hold and detect that the output end of circuit is connected with the first switch, the output end of the on-off circuit and the starting-up signal output end
Connection, the on-off circuit is used to open when receiving second trigger signal and first trigger signal at the same time, and
Starting-up signal is exported to signal output part.
The utility model starting key circuit detects that circuit and second switch detect circuit in inspection by using first switch
When measuring the starting-up signal of starting-up signal input input, the first trigger signal and the second trigger signal are exported respectively, so that institute
State when on-off circuit receives second trigger signal and the first trigger signal at the same time and open, and export starting-up signal to opening
Machine signal output part.The utility model starting key circuit need not can realize normal boot-strap using CPU, so as to reduce CPU
Idling consumption when standby, more energy-conserving and environment-protective.Further, since the utility model need not can realize electronic equipment by CPU
Start, therefore, in the electronic device during CPU power remove, it can also realize electronic equipment normal boot-strap.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the functions of modules figure that the utility model starting key circuit is applied in electronic equipment；
Fig. 2 is the electrical block diagram of starting key circuit in Fig. 1.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 10 | First switch detects circuit | R1 | Pull-up resistor |
| 20 | Second switch detects circuit | R2 | Second resistance |
| 30 | On-off circuit | R3 | 3rd resistor |
| 11 | First partial pressure unit | R4 | 4th resistance |
| 21 | Second partial pressure unit | R5 | 5th resistance |
| Q1 | First switch pipe | R6 | 6th resistance |
| Q2 | Second switch pipe | R7 | Pull down resistor |
| Q3 | 3rd switching tube | Key | Starting-up signal input |
| C1 | Capacitor | Vout | Starting-up signal output end |
| SB | Feeder ear |
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of the utility model protection.
If it is to be appreciated that related in the utility model embodiment directionality indicate (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality indicates to be only used for explaining relative between each part under a certain particular pose (as shown in drawings)
Position relationship, motion conditions etc., if the particular pose changes, directionality indicates also correspondingly therewith to change.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is only used for describing purpose, and it is not intended that indicating or implying its relative importance or implicit indicate meaning
The quantity of the technical characteristic shown.Thus, " first " is defined, the feature of " second " can express or implicitly include at least one
Individual this feature.In addition, the technical scheme between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, when the combination appearance of technical scheme is conflicting or can not realize it will be understood that this technical side
The combination of case is not present, also not within the protection domain of the utility model requirement.
The utility model proposes a kind of starting key circuit.
In reference picture 1, the embodiment of the utility model one, the starting key circuit includes：For what is be connected with power supply
Feeder ear SB, the pull-up resistor R1 being connected successively with the feeder ear SB, starting-up signal input Key, letter of being started shooting for output
Number starting-up signal output end vo ut, and first switch detection circuit 10, second switch detection circuit 20 and on-off circuit 30.
Specifically, the power end of the first switch detection circuit 10 is connected with the feeder ear SB, the first switch
The test side of detection circuit 10 is connected with the starting-up signal input Key；Second switch detects circuit 20, the second switch
The power end of detection circuit 20 is connected with the feeder ear SB, the test side of the second switch detection circuit 20 and the start
Signal input part Key connections；On-off circuit 30, controlled end and the second switch of the on-off circuit 30 detect circuit 20
Output end is connected, and input and the first switch of the on-off circuit 30 detect that the output end of circuit 10 is connected, described to open
The output end on powered-down road 30 is connected with the starting-up signal output end vo ut.
It is understood that when starting key circuit is applied in the electronic equipments such as television set, starting-up signal input
Key accesses key switch and the pull down resistor (not shown) being connected with key switch (not shown).Wherein, pull-up resistor
The power supply signal of R1 output standby powers makes starting-up signal input Key be maintained at high level shape to starting-up signal input Key
State, in this way, when starting key is pressed, pull-up resistor R1 connected with pull down resistor partial pressure and and output key signal, that is,
Say, when pull-up resistor R1 resistance value keeps constant, different voltages can just be exported by the resistance for adjusting pull down resistor
Push button signalling, in this way, when realizing that different key switches are pressed, exporting the push button signalling of different voltages, it is possible to realize not
Same key command.In addition, starting-up signal input Key is always maintained at high level state, key switch can be also avoided to be used as it
During his keypress function, producing interference signal makes first switch detect that circuit 10 and second switch detection circuit 20 produce misoperation.
In the present embodiment, when starting key is pressed, pull-up resistor R1 connected with pull down resistor partial pressure and and output key
Signal, now, the first switch detection circuit 10 detect starting-up signal, and export corresponding first trigger signal；Meanwhile,
Second switch detection circuit 20 detects the starting-up signal, exports corresponding second trigger signal；When on-off circuit 30 simultaneously
Opened when receiving first trigger signal and second trigger signal, output starting-up signal to signal output part, control
Television boot-strap.
In the present embodiment, it is to be understood that first switch detects that circuit 10 and second switch detection circuit 20 are logical
Switch detection triggering is crossed, and if only if when detecting starting-up signal, and the first trigger signal and the second trigger signal are just exported respectively
Opened with controlling switch circuit 30.If the test side of second switch detection circuit 20 and first switch detect the input of circuit 10
Starting-up signal is not detected by, then exports the second trigger signal and the first trigger signal is turned off with controlling switch circuit 30, and it is defeated
Go out low level signal, so that electronic equipment keeps current state, now starting key circuit does not consume electric energy.
The utility model starting key circuit detects that circuit 10 and second switch detect circuit 20 by using first switch
When detecting the starting-up signal of starting-up signal input Key inputs, the first trigger signal and the second trigger signal are exported respectively,
So that the on-off circuit 30 is opened when receiving second trigger signal and the first trigger signal at the same time, and export start
Signal is to signal output part；And be other buttons detect that starting-up signal input Key do not input starting-up signal or input
It is failure to actuate during signal, now whole circuit does not consume electric energy.So, electronic equipment can also realize that electronics is set when CPU does not work
Standby reliable start.The utility model starting key circuit need not can realize normal boot-strap using CPU, be treated so as to reduce CPU
Idling consumption during machine, more energy-conserving and environment-protective.Further, since the utility model need not can realize that electronic equipment is opened by CPU
Machine, therefore, in the electronic device during CPU power remove, it can also realize electronic equipment normal boot-strap.
It is understood that and if only if when detecting the push button signalling of start for the utility model starting key circuit,
Export starting-up signal, and when electronic equipment normal work, starting key circuit detect other push button signallings as suspended, it is quiet
It is failure to actuate during the push button signallings such as sound, so that the CPU of electronic equipment can accurately receive signal and respond key command.It can also manage
Solution, when the CPU of electronic equipment is in holding state, namely CPU power supply normal power supply when, electronic equipment may be used also
Start is realized by CPU, to realize that a variety of start-up modes of electronic equipment are compatible.
Reference picture 2, in a preferred embodiment, the first switch detection circuit 10 are preferred to use the first partial pressure unit 11
And first switch pipe Q1 is implemented.Wherein, the first switch detection circuit 10 includes the first partial pressure unit 11 and first switch
Pipe Q1, the input of first partial pressure unit 11 detects the power end of circuit 10, first partial pressure for the first switch
The output end of unit 11 is connected with the controlled end of the first switch pipe Q1, and the input of the first switch pipe Q1 is described the
The test side of one switch detection circuit 10, the output end of the first switch pipe Q1 detects the defeated of circuit 10 for the first switch
Go out end.In the present embodiment, the first partial pressure unit 11 exports first after carrying out partial pressure for the standby power for inputting feeder ear SB
Switching tube Q1 controlled end, so that first switch pipe Q1 works.First switch pipe Q1 is used for having starting key signal in input
Turned on during input, and export the second trigger signal.In the present embodiment, first switch pipe Q1 is preferably PNP type triode, wherein,
The base stage of PNP type triode is first switch pipe Q1 controlled end, and the transmitting extremely first switch pipe Q1's of PNP type triode is defeated
Enter end, the current collection extremely first switch pipe Q1 output end of PNP type triode.Certainly, in other embodiments, first switch pipe
Q1 can also be implemented using other electronic switches, and this is not restricted.
Further, in above-described embodiment, first partial pressure unit 11 is preferred to use second resistance R2 and 3rd resistor
R3, the second resistance R2 first end are the input of first partial pressure unit 11, the second end of the second resistance R2
For the output end of first partial pressure unit 11, and it is connected with the first end of the 3rd resistor R3；The 3rd resistor R3's
Second end is grounded.
In the present embodiment, second resistance R2 and 3rd resistor R3 carry out partial pressure to control first switch pipe Q1 to turn on, so,
Just first switch pipe Q1 conducting degree can be adjusted by adjusting second resistance R2 and/or 3rd resistor R3 resistance, entered
And the identification lower limit of starting key signal is set, usually, the lower voltage limit of the starting-up signal of the electronic equipment such as television set is
2.2v, during the upper limit is 2.8v, the present embodiment, by selecting the second resistance R2 and 3rd resistor R3 of suitable resistance, can opened
During the voltage of machine signal as little as 2.2v, the Q1 conductings of triggering first switch pipe are remained able to, to realize start detection, it is ensured that start inspection
The accuracy of survey.In the present embodiment, second resistance R2 and 3rd resistor R3 are preferred to use the resistance of high value, higher to be formed
Impedance, so that when avoiding the input of other push button signallings, the first switch detection misoperation of circuit 10.
Reference picture 2, in a preferred embodiment, the second switch detection circuit 20 are preferred to use the second partial pressure unit 21
And second switch pipe Q2 is implemented.Wherein, the second switch detection circuit 20 includes the second partial pressure unit 21 and second switch
Pipe Q2, the input of second partial pressure unit 21 detects the power end of circuit 20, second partial pressure for the second switch
The output end of unit 21 is connected with the controlled end of the second switch pipe Q2, and the input of the second switch pipe Q2 is described the
The test side of two switch detection circuits 20, the output end of the second switch pipe Q2 detects the defeated of circuit 20 for the second switch
Go out end.
In the present embodiment, the power supply that the second partial pressure unit 21 is used to inputting feeder ear SB exported after partial pressure the
Two switching tube Q2 controlled end, so that second switch pipe Q2 works.Second switch pipe Q2 is used for having starting key letter in input
Number input when turn on, and export the second trigger signal.In the present embodiment, second switch pipe Q2 is preferably PNP type triode, its
In, the base stage of PNP type triode is second switch pipe Q2 controlled end, the transmitting extremely second switch pipe Q2 of PNP type triode
Input, the current collection extremely second switch pipe Q2 output end of PNP type triode.Certainly, in other embodiments, second open
Closing pipe Q2 can also be implemented using other electronic switches, and this is not restricted.
Further, in above-described embodiment, second partial pressure unit 21 is preferred to use the 4th resistance R4 and the 5th resistance
R5, the 4th resistance R4 first end are the input of second partial pressure unit 21, the second end of the 4th resistance R4
For the output end of second partial pressure unit 21, and it is connected with the first end of the 3rd resistor R3；The 3rd resistor R3's
Second end is grounded.
In the present embodiment, the 4th resistance R4 and the 5th resistance R5 carry out partial pressure to control second switch pipe Q2 to turn on, so,
Second switch pipe Q2 conducting degree, Jin Ershe just can be adjusted by adjusting the 4th resistance R4 and the 5th resistance R5 resistance
Determine the identification upper limit of starting key signal, usually, the lower voltage limit of the starting-up signal of the electronic equipment such as television set is 2.2v, on
, can be in starting-up signal by selecting the 4th resistance R4 and the 5th resistance R5 of suitable resistance during limit is 2.8v, the present embodiment
During voltage up to 2.8v, the Q2 conductings of triggering second switch pipe are remained able to, to realize start detection, it is ensured that the accurate of detection of starting shooting
Property.In the present embodiment, the 4th resistance R4 and the 5th resistance R5 are preferred to use the resistance of high value, to form higher impedance, from
And when avoiding the input of other push button signallings, the second switch detection misoperation of circuit 20.
Reference picture 2, in a preferred embodiment, the on-off circuit 30 preferably on-off circuit 30 include current-limiting resistance
R6 and the 3rd switching tube Q3.
Wherein, the on-off circuit 30 includes current-limiting resistance R6 and the 3rd switching tube Q3, the first of the current-limiting resistance R6
Hold as the controlled end of the on-off circuit 30, the second end of the current-limiting resistance R6 and the controlled end company of the 3rd switching tube Q3
Connect；The input of the 3rd switching tube Q3 is the input of the on-off circuit 30, the output end of the 3rd switching tube Q3
For the output end of the on-off circuit 30.
In the present embodiment, current-limiting resistance R6 is used to carry out current limliting to the electric current inputted to the 3rd switching tube Q3, defeated to avoid
Enter the electric current to the 3rd switching tube Q3 excessive and burn switching tube.In the present embodiment, the 3rd switching tube Q3 is preferably the pole of positive-negative-positive three
Pipe, wherein, the base stage of PNP type triode is the 3rd switching tube Q3 controlled end, and the transmitting the extremely the 3rd of PNP type triode is switched
Pipe Q3 input, current collection extremely the 3rd switching tube Q3 output end of PNP type triode.Certainly, in other embodiments,
Three switching tube Q3 can also be implemented using other electronic switches, and this is not restricted.
Reference picture 2, in a preferred embodiment, the capacitor C1 are connected in series in the feeder ear SB and described first
Between switching tube Q1 controlled end.
In the present embodiment, capacitor C1 is used to filter out the alternating component in the power supply of feeder ear SB inputs, capacitor
C1 is additionally operable in powered on moment, can reliably be started shooting.
Reference picture 2, based on above-described embodiment, the key-press circuit for switch still further comprises pull down resistor R7, it is described under
Pull-up resistor R7 is connected in series between the controlled end of the on-off circuit 30 and ground.
In the present embodiment, pull down resistor R7 is used to realize when second switch pipe Q2 is turned on, and exports low level second and touches
Signal, to control the 3rd switching tube Q3 to turn on.
In order to preferably illustrate inventive concept of the present utility model, below in conjunction with Fig. 1 and Fig. 2, the utility model is started shooting
The operation principle of key circuit is illustrated：
Reference picture 1 and Fig. 2, when starting key input Key has the input of starting key signal, what is be connected with power end is upper
Pull-up resistor R1 switchs (not shown) the progress partial pressure of pull down resistor that (not shown) is connected with and with starting key, now
Partial pressure value causes first switch pipe Q1 to turn on, and exports high level signal to the 3rd switching tube Q3 input, while so that the
Two switching tube Q2 are turned on, and export low level signal to the 3rd switching tube Q3 controlled end, so that switching tube meets turn-on condition
And turn on.When the 3rd switching tube Q3 is turned on, the 3rd switching tube Q3 exports high level signal equivalent to short circuit, so that
Electronic equipment is booted up when receiving high level.
When starting key input Key is inputted without starting key signal, due to the pull-up resistor being connected with feeder ear SB
R1 is unsatisfactory for first switch pipe Q1 and/or second switch with and with the partial pressure value of pull down resistor that is connected of starting key switch
Pipe Q2 turn-on condition, first switch pipe Q1 and/or second switch pipe Q2 end, and then the 3rd switching tube Q3 ends and exports low
Level signal, electronic equipment is not responding to start-up command.
It is understood that the utility model starting key circuit is equivalent to a gating circuit, and if only if detects out
When what machine signal input part Key was inputted is starting key signal, first switch pipe Q1 is just both turned on second switch pipe Q2, and the
One switching tube Q1 exports high level, second switch pipe Q2 output low levels, and then the 3rd switching tube Q3 of triggering and turns on and export height
Level, to respond starting key instruction.And when first switch pipe Q1 and/or second switch pipe Q2 ends, the 3rd switching tube Q3
Low level is exported in cut-off state, key command is not responding to.
The utility model also proposes a kind of electronic equipment, and the electronic equipment includes standby power and start as described above is pressed
Key circuit, the concrete structure of the starting key circuit with reference to above-described embodiment, due to this electronic equipment employ above-mentioned start by
Whole technical schemes of all embodiments of key circuit, therefore at least there is the technical scheme institute of above-mentioned starting key circuit embodiments
All beneficial effects brought, this is no longer going to repeat them.
In the embodiment of the utility model one, the electronic equipment can be the electronic equipments such as television set, set top box, air-conditioning, this
Place is not limited.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
It is every under inventive concept of the present utility model, the equivalent structure made using the utility model specification and accompanying drawing content is become
Change, or directly/be used in other related technical fields indirectly and be included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of starting key circuit, it is characterised in that supplied including the feeder ear for being connected with standby power, successively with described
Pull-up resistor, the starting-up signal input of electric end connection, and for exporting the starting-up signal output end of starting-up signal；It is described to open
Machine key circuit also includes：
First switch detects circuit, and the power end of the first switch detection circuit is connected with the feeder ear, and described first opens
The test side for closing detection circuit is connected with the starting-up signal input；The first switch detection circuit is used to detect out
During machine signal, corresponding first trigger signal is exported；
Second switch detects circuit, and the power end of the second switch detection circuit is connected with the feeder ear, and described second opens
The test side for closing detection circuit is connected with the starting-up signal input；The second switch detection circuit is used for detecting
When stating starting-up signal, corresponding second trigger signal is exported；
On-off circuit, the controlled end of the on-off circuit detects that the output end of circuit is connected with the second switch, the switch
The input of circuit detects that the output end of circuit is connected with the first switch, the output end of the on-off circuit and the start
Signal output part is connected；
The on-off circuit, for receive at the same time during first trigger signal and second trigger signal open, and
Starting-up signal is exported to signal output part.
2. starting key circuit as claimed in claim 1, it is characterised in that the first switch detection circuit includes first point
Unit and first switch pipe are pressed, the input of first partial pressure unit detects the power end of circuit, institute for the first switch
The output end for stating the first partial pressure unit is connected with the controlled end of the first switch pipe, and the input of the first switch pipe is institute
The test side that first switch detects circuit is stated, the output end of the first switch pipe detects the output of circuit for the first switch
End.
3. starting key circuit as claimed in claim 2, it is characterised in that first partial pressure unit include second resistance and
3rd resistor, the first end of the second resistance is the input of first partial pressure unit, the second end of the second resistance
For the output end of first partial pressure unit, and it is connected with the first end of the 3rd resistor；Second end of the 3rd resistor
Ground connection.
4. starting key circuit as claimed in claim 2, it is characterised in that the second switch detection circuit includes second point
Unit and second switch pipe are pressed, the input of second partial pressure unit detects the power end of circuit, institute for the second switch
The output end for stating the second partial pressure unit is connected with the controlled end of the second switch pipe, and the input of the second switch pipe is institute
The test side that second switch detects circuit is stated, the output end of the second switch pipe detects the output of circuit for the second switch
End.
5. starting key circuit as claimed in claim 4, it is characterised in that second partial pressure unit include the 4th resistance and
5th resistance, the first end of the 4th resistance is the input of second partial pressure unit, the second end of the 4th resistance
For the output end of second partial pressure unit, and it is connected with the first end of the 5th resistance；Second end of the 5th resistance
Ground connection.
6. starting key circuit as claimed in claim 4, it is characterised in that the on-off circuit includes current-limiting resistance and the 3rd
Switching tube, the first end of the current-limiting resistance is the controlled end of the on-off circuit, the second end of the current-limiting resistance with it is described
The controlled end connection of 3rd switching tube；The input of 3rd switching tube is the input of the on-off circuit, the described 3rd
The output end of switching tube is the output end of the on-off circuit.
7. starting key circuit as claimed in claim 6, it is characterised in that the first switch pipe, second switch pipe and
Three switching tubes are PNP type triode.
8. starting key circuit as claimed in claim 2, it is characterised in that the key-press circuit for switch also includes capacitor,
The capacitor is connected in series between the controlled end of the feeder ear and the first switch pipe.
9. the starting key circuit as described in claim 1 to 8 any one, it is characterised in that the key-press circuit for switch is also
Including pull down resistor, the pull down resistor is connected in series between the controlled end of the on-off circuit and ground.
10. a kind of electronic equipment, it is characterised in that the electronic equipment includes standby power and as claim 1 to 9 is any one
Starting key circuit described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621443863.7U CN206441115U (en) | 2016-12-26 | 2016-12-26 | Starting key circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621443863.7U CN206441115U (en) | 2016-12-26 | 2016-12-26 | Starting key circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206441115U true CN206441115U (en) | 2017-08-25 |
Family
ID=59647477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621443863.7U Active CN206441115U (en) | 2016-12-26 | 2016-12-26 | Starting key circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206441115U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977297A (en) * | 2019-12-13 | 2021-06-18 | 北汽福田汽车股份有限公司 | Signal acquisition circuit, control method, vehicle control unit and vehicle |
| CN113589714A (en) * | 2021-07-05 | 2021-11-02 | 海信（山东）冰箱有限公司 | Clothes dryer and control method thereof |
-
2016
- 2016-12-26 CN CN201621443863.7U patent/CN206441115U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977297A (en) * | 2019-12-13 | 2021-06-18 | 北汽福田汽车股份有限公司 | Signal acquisition circuit, control method, vehicle control unit and vehicle |
| CN113589714A (en) * | 2021-07-05 | 2021-11-02 | 海信（山东）冰箱有限公司 | Clothes dryer and control method thereof |
| CN113589714B (en) * | 2021-07-05 | 2022-10-21 | 海信冰箱有限公司 | Clothes dryer and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109963393A (en) | A kind of flash switch detection circuit | |
| CN206441115U (en) | Starting key circuit and electronic equipment | |
| CN106104994B (en) | A kind of DC-DC power source and its low pressure switch off control circuit | |
| CN204376697U (en) | The circuit of electric equipment and reduction Switching Power Supply stand-by power consumption | |
| CN207281214U (en) | A kind of Type-C interfaces and its connection detection circuit | |
| CN207184795U (en) | Mute circuit and audio frequency apparatus | |
| CN103376748A (en) | Electronic device | |
| CN208588984U (en) | On/off circuit and unmanned plane for unmanned plane monitoring equipment | |
| CN207490595U (en) | Power-supplying circuit and electrical equipment | |
| CN110190841A (en) | I/O port multiplexing control circuit and electronic equipment | |
| CN208092205U (en) | A kind of closed-loop detection circuit for detecting relay output state | |
| CN206226400U (en) | Stand-by circuit, the socket with the stand-by circuit, plug and equipment | |
| CN104730971B (en) | Low power consumption standby system and equipment | |
| CN109814437A (en) | Zero-power-consumption standby wake-up circuit and electrical equipment | |
| CN206743411U (en) | TV standby power control circuit and television set | |
| CN206147508U (en) | Reset circuit and intelligent system | |
| CN109581227A (en) | A kind of intelligent door lock energy-saving voltage detection circuit | |
| CN214473649U (en) | Detection circuit and electronic equipment | |
| CN204442329U (en) | A kind of mechanical switch remote-control module and intelligent switch | |
| CN104935842B (en) | The control method and television system of stand-by circuit, stand-by circuit | |
| CN114019884A (en) | Household appliance power consumption control circuit and household appliance | |
| CN207625534U (en) | Low power consumption switch circuit and mobile robot | |
| CN209215904U (en) | Microcontroller power supply control circuit, single chip circuit and electrical equipment | |
| CN208580396U (en) | Data dump device and computer | |
| CN208723533U (en) | A kind of digital electric current relay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230411 Address after: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee after: Shenzhen Huaxi Investment Co.,Ltd. Address before: 518052 Room 201, building a, comprehensive office building of Qianhai Shenzhen Hong Kong Cooperation Zone Administration Bureau, No.1 liyumen street, Qianwan 1st Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen City, Guangdong Province Patentee before: SHENZHEN TCL DIGITAL TECHNOLOGY Ltd. |
|
| TR01 | Transfer of patent right |