CN207995245U - The start control circuit and television set of television set - Google Patents
The start control circuit and television set of television set Download PDFInfo
- Publication number
- CN207995245U CN207995245U CN201820459181.8U CN201820459181U CN207995245U CN 207995245 U CN207995245 U CN 207995245U CN 201820459181 U CN201820459181 U CN 201820459181U CN 207995245 U CN207995245 U CN 207995245U
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- television set
- signal
- connect
- 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.)
- Expired - Fee Related
Links
Landscapes
- Television Receiver Circuits (AREA)
Abstract
The utility model discloses a kind of start control circuit of television set and television sets, the start control circuit of the television set includes the power end for providing supply voltage, key circuit for exporting first threshold voltage signal according to the key command of user, for carrying out voltage division processing to first threshold voltage signal and exporting the first comparison circuit of second threshold voltage signal, for to second threshold voltage signal carry out voltage division processing and export booting trigger signal the second comparison circuit, and machine control signal is opened to the booting control terminal of television set to control the trigger of television boot-strap for being exported when receiving booting trigger signal；The utility model can realize the identification to autonomous button voltage, to significantly reduce the power consumption of television set.
Description
Technical field
The utility model is related to electronic technology field, more particularly to the start control circuit and television set of a kind of television set.
Background technology
Currently, the key circuit of each electronic equipment (such as television set) is by CPU by being identified after AD conversion, CPU when standby
Need whether the key switch constantly monitored on key circuit is pressed, therefore, CPU, which need to be operated ceaselessly, just can guarantee and work as user
When pushing button, CPU can monitor that corresponding button is pressed and control other corresponding function modules work, and CPU locates always
It is excessively high so as to cause the power consumption of television set in standby mode.
Utility model content
The main purpose of the utility model is to provide a kind of start control circuit of television set, it is intended to solve in the prior art
Whether the key switch that CPU need to monitor key circuit in real time is pressed, and CPU is constantly in standby mode, leads to the work(of television set
Consume excessively high problem.
To achieve the above object, the utility model proposes a kind of television set start control circuit, including television set
Booting control terminal, the power end for providing supply voltage are believed for exporting first threshold voltage according to the key command of user
Number key circuit, for carrying out voltage division processing to the first threshold voltage signal and exporting the of second threshold voltage signal
One comparison circuit compares for carrying out voltage division processing to the second threshold voltage signal and exporting the second of booting trigger signal
Circuit, and for receive it is described booting trigger signal when output open machine control signal to television set booting control terminal with
Control the trigger of the television boot-strap；
Wherein, the power input of the key circuit is connect with the power end, the signal output of the key circuit
End is connect with the signal input part of first comparison circuit, and the signal output end of first comparison circuit compares with described second
Signal input part compared with circuit connects, and the signal output end of second comparison circuit connects with the signal input part of the trigger
It connects, the signal output end of the trigger is connect with the booting control terminal of the television set.
Preferably, the first comparator circuit includes the first bleeder circuit and the first PNP triode；
The signal input part of first bleeder circuit is connect with the signal output end of the key circuit, and described first
The emitter of PNP triode is connect with the signal output end of the key circuit, the first bleeder circuit signal output end with
The base stage of first PNP triode connects, the letter of the collector of first PNP triode and second comparator circuit
The connection of number input terminal.
Preferably, first bleeder circuit includes first resistor and second resistance；
One end of the first resistor is connect with the signal output end of the key circuit, the other end of the first resistor
It is connect with the base stage of first PNP triode, one end of the second resistance and the base stage of first PNP triode connect
It connects, the other end ground connection of the second resistance.
Preferably, second comparator circuit includes the second bleeder circuit, the 5th resistance and the second NPN triode；
The signal input part of second bleeder circuit is connect with the signal output end of first comparison circuit, and described
The signal output end of two bleeder circuits is connect with the base stage of second NPN triode, the collector of second NPN triode
It is connect with one end of the 5th resistance, the other end of the 5th resistance connects with the signal output end of first comparison circuit
It connects, the emitter ground connection of second NPN triode.
Preferably, second bleeder circuit includes 3rd resistor and the 4th resistance；
One end of the 3rd resistor is connect with the signal output end of first comparison circuit, the 3rd resistor it is another
One end is connect with the base stage of second NPN triode, the base stage of one end and second NPN triode of the 4th resistance
Connection, the other end ground connection of the 4th resistance.
Preferably, the key circuit includes the 6th resistance, the 7th resistance and at least one key switch；
One end of 7th resistance is connect with the power end, the other end and the key switch of the 7th resistance
One end interconnection, the other end of the key switch connect with one end of the 6th resistance, the other end of the 6th resistance
Ground connection, the 7th resistance are connect with the interconnection end of the key switch with the signal input part of first comparison circuit.
Preferably, the first threshold voltage is equal to the second threshold voltage.
In addition, the utility model additionally provides a kind of television set, the television set includes opening for television set as described above
Machine control circuit.
The utility model provides a kind of start control circuit of television set, and the start control circuit of the television set includes TV
The booting control terminal of machine, the power end for providing supply voltage, for according to the key command of user export first threshold electricity
Press the key circuit of signal, for carrying out voltage division processing to first threshold voltage signal and exporting the of second threshold voltage signal
One comparison circuit, for second threshold voltage signal carry out voltage division processing and export booting trigger signal the second comparison it is electric
Road, and machine control signal is opened to the booting control terminal of television set to control electricity for being exported when receiving booting trigger signal
Depending on the trigger of machine booting；Wherein, the power input of key circuit is connect with power end, the signal output end of key circuit with
The signal input part of first comparison circuit connects, and the signal of the signal output end of the first comparison circuit and the second comparison circuit inputs
The signal input part of end connection, the signal output end of the second comparison circuit and trigger connects, the signal output end of trigger with
The booting control terminal of television set connects.The utility model is since the trigger when receiving booting trigger signal, just open by output
To control television boot-strap work, i.e. television set need to only receive open machine control signal without standby in real time in the trigger
Just be switched on work when machine control signal, to significantly reduce the power consumption of television set.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structure diagram of one embodiment of start control circuit of the utility model television set；
Fig. 2 is the structural schematic diagram of one embodiment of start control circuit of the utility model television set；
Fig. 3 is the starting-up signal oscillogram of the start control circuit of the utility model television set.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining relative position relation, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand
To indicate or implying its relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution
Conflicting or cannot achieve when occur will be understood that the combination of this technical solution is not present, also not in the requires of the utility model
Protection domain within.
Referring to Fig.1, the utility model provides a kind of start control circuit of television set, the booting control electricity of the television set
Road includes the booting control terminal 20 of television set, the power end 10 for providing supply voltage, for the key command according to user
Export the key circuit 12 of first threshold voltage signal, for carrying out voltage division processing to first threshold voltage signal and exporting second
First comparison circuit 13 of threshold voltage signal is triggered for carrying out voltage division processing to second threshold voltage signal and exporting booting
Second comparison circuit 14 of signal, and machine control signal is opened to television set for being exported when receiving booting trigger signal
The control terminal 20 that is switched on is to control the trigger 15 of television boot-strap；
Wherein, the power input of key circuit 12 and power end 10 interconnect, the signal output end of key circuit 12 and the
The signal input part of one comparison circuit 13 connects, and the first threshold voltage signal of 12 signal output end of key circuit output is inputted
To the signal input part of the first comparison circuit 13, the signal of the signal output end of the first comparison circuit 13 and the second comparison circuit 14
Input terminal connects, the output second threshold voltage letter after first threshold voltage signal is carried out voltage division processing by the first comparison circuit 13
Number to the second comparison circuit 14, the signal output end of the second comparison circuit 14 is connect with the signal input part of trigger 15, and second
Comparison circuit 14 carries out voltage division processing after receiving second threshold voltage signal and exports booting trigger signal, the signal of trigger 15
The booting control terminal 20 of output end and television set connects, the output booting control letter when receiving booting trigger signal of trigger 15
Number, to control television boot-strap work.
It should be noted that first threshold voltage is equal to second threshold voltage, third threshold voltage is less than second threshold electricity
Pressure or first threshold voltage, booting trigger signal are high level signal.
In the present embodiment, key circuit 12 includes the 6th resistance R6, the 7th resistance R7 and at least one key switch J1；
One end of 7th resistance R7 is connect with power end 10, and the other end of the 7th resistance R7 is interconnected with one end of key switch J1, button
The other end of switch J1 is connect with one end of the 6th resistance R6, the other end ground connection of the 6th resistance R6, the 7th resistance R7 and button
The interconnection end of switch J1 is connect with the signal input part of the first comparison circuit 13.
In the present embodiment, the 6th resistance R6 is divider resistance, and the key switch of above-mentioned key circuit 12 can be multiple, but
At least one is the key switch J1 of electric power starting, and each key switch has the divider resistance of corresponding electrical connection, threshold
The range of threshold voltage can be preset according to the key switch quantity that key circuit 12 is arranged, when the electricity of the key switch J1 pressed
When being pressed in threshold voltage ranges, then television boot-strap works, and the other key switches being arranged on key circuit 12 restore button
Identification function；Conversely, when the voltage for the key switch pressed is not in threshold voltage ranges, then television set is not switched on work.
It should be understood that key circuit 12 shown in FIG. 1 is explanation attached drawing provided by the utility model, in fact,
Key circuit 12 is not limited to structure shown in Fig. 1, can also increase other function buttons switch and corresponding
Divider resistance, one end of newly-increased key switch are connect with the 7th resistance R7, the other end of key switch and corresponding point
Piezoresistance one end connects, divider resistance other end ground connection.
In the present embodiment, the supply voltage of power end 10 can be set as needed, in the present embodiment, working power
The supply voltage at end 10 is 3.3V, and in other embodiments, the supply voltage of working power end 10 may be 5V, this practicality is new
Type is not limited to this.
The utility model on the basis of existing key circuit 12 by increasing the first comparison circuit 13 and second ratio
Compared with circuit 14, the first threshold voltage signal that key circuit 12 exports is subjected to voltage division processing through the first comparison circuit 13 and is exported
Second threshold voltage signal, the second comparison circuit 14 carry out voltage division processing to second threshold voltage signal and export booting triggering letter
Number, the output when receiving booting trigger signal of trigger 15 opens machine control signal to the booting control terminal 20 of television set, with control
NTSC television system NTSC machine is switched on, television set powered operation；By using the technical solution of the utility model, television set without in real time it is standby,
Only need to just be switched on work when trigger 15 receives out machine control signal, and foregoing circuit can be realized to autonomous button voltage
Identification, to significantly reduce the power consumption of television set.
Fig. 2 be the utility model television set one embodiment of start control circuit structural schematic diagram, together referring to Fig.1 and
Fig. 2, in the present embodiment, first comparison circuit 13 includes the first bleeder circuit 130 and the first PNP triode Q1.Specifically
The signal input part on ground, the first bleeder circuit 130 is connect with the signal output end of key circuit 12, the first PNP triode Q1's
Emitter is connect with the signal output end of key circuit 12,130 signal output end of the first bleeder circuit and the first PNP triode Q1
Base stage connection, the collector of the first PNP triode Q1 connect with the signal input part of the second comparison circuit 14；By this first
After the first threshold voltage that bleeder circuit 130 exports 12 signal output end of key circuit carries out voltage division processing, then through the first PNP
The collector of triode Q1 exports second threshold voltage signal.
In the present embodiment, second comparison circuit 14 includes the second bleeder circuit 140, the 5th resistance R5 and second
NPN triode Q2.Specifically, the signal of the signal input part of second bleeder circuit 140 and the first comparison circuit 13 exports
End connection, the signal output end of the second bleeder circuit 140 are connect with the base stage of the second NPN triode Q2, the second NPN triode Q2
Collector connect with one end of the 5th resistance R5, the signal output end of the other end of the 5th resistance R5 and the first comparison circuit 13
Connection, the emitter ground connection of the second NPN triode Q2；First comparison circuit 13 is exported by second bleeder circuit 140
Second threshold voltage carries out voltage division processing, then the output booting trigger signal of the collector through the second NPN triode Q2.
In the present embodiment, first bleeder circuit 130 includes first resistor R1 and second resistance R2.First resistor R1's
One end is connect with the signal output end of key circuit 12, and the base stage of the other end of first resistor R1 and the first PNP triode Q1 connect
It connects, one end of second resistance R2 is connect with the base stage of the first PNP triode Q1, the other end ground connection of second resistance R2.This implementation
In example, the first threshold voltage of input is carried out voltage division processing by first resistor R1 and second resistance R2, to make tri- poles the first PNP
The threshold voltage of pipe Q1 base stages is less than the first threshold voltage of the first PNP triode Q1 emitters, the hair of the first PNP triode Q1
The base stage of emitter-base bandgap grading and the first PNP triode Q1 generate voltage difference, at this point, the first PNP triode Q1 conductings, the first PNP triode
The collector of Q1 exports second threshold voltage to the second comparison circuit 14.
In the present embodiment, the second bleeder circuit 140 includes 3rd resistor R3 and the 4th resistance R4；One end of 3rd resistor R3
It is connect with the signal output end of the first comparison circuit 13, the base stage of the other end of 3rd resistor R3 and the second NPN triode Q2 connect
It connects, one end of the 4th resistance R4 is connect with the base stage of the second NPN triode Q2, the other end ground connection of the 4th resistance R4.This implementation
In example, the second threshold voltage of input is carried out voltage division processing by 3rd resistor R3 and the 4th resistance R4, to make tri- poles the 2nd NPN
The threshold voltage of pipe Q2 base terminals is less than the second threshold voltage of the second NPN triode Q2 emitters, the second NPN triode Q2 bases
Pole generates voltage difference with its emitter, at this point, the second NPN triode Q2 cut-offs, the output booting of the second NPN triode Q2 collectors
Machine control signal is opened in trigger signal, the output when receiving booting trigger signal of trigger 15, to control the booting work of television set 20
Make；Therefore, the CPU of television set 20 is not necessarily to real-time standby power consumption, only need to just be switched on after the control signal for receiving trigger 15
Work, so as to reduce the power consumption of the work of television set 20.
In addition, it is necessary to illustrate, in the present embodiment, compare in order to not influence the output voltage of key circuit 12, first
The resistance value of circuit 13 and the second comparison circuit 14 need to be much larger than the resistance value of key circuit 12, i.e., according to the resistance value of key circuit 12,
The resistance value of first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4 are arranged as possible larger.
Fig. 3 is the starting-up signal oscillogram of the start control circuit of the utility model television set, together reference Fig. 2 and Fig. 3,
The waveform gradually risen after the comparison point a that first comparison circuit 13 generates, i.e. first threshold voltage are higher than a comparison point voltages, the
The base voltage difference of the emitter of one PNP triode Q1 and the first PNP triode Q1 are more than conducting voltage, then tri- poles the first PNP
Pipe Q1 conductings, the first comparison circuit 13 export second threshold voltage signal；
Second comparison circuit 14 generates the waveform being lower after comparison point b, i.e., second threshold voltage is higher than b comparison point electricity
Pressure, the base stage of the second NPN triode Q2 and the emitter voltage difference of the second NPN triode Q2 are more than conducting voltage, the 2nd NPN tri-
Pole pipe Q2 conductings, the second comparison circuit 14 export low level signal.
The waveform generated by the first comparison circuit 13 in the present embodiment and both waveforms of the second comparison circuit 14 generation have
Crosspoint, so Vout output waveforms are the output voltage wave of two voltage comparison point of a comparison points and b comparison points, i.e. booting is touched
Signalling output waveform；The region of a comparison points and b comparison points is the voltage threshold range of booting analog voltage signal, as long as pressing
Under key switch voltage in the threshold voltage ranges of a comparison points and b comparison points, then the second comparison circuit 14 output booting
Trigger signal.
It should be noted that causing booting triggering bad to reduce temperature or the inconsistent caused error of device, a compares
The threshold voltage of the setting of point and b comparison points should differ larger, and the threshold voltage of b comparison points is more than the threshold value electricity of a comparison points
Pressure.
The start control circuit of the present embodiment television set is using less component, that is, alternative more complex in the prior art
Key switch machine control circuit, therefore, the present embodiment can not only avoid CPU generate higher power dissipation, reduce complete machine work
Power consumption, and simple circuit design through this embodiment, also have the advantages that at low cost.
In addition, the utility model also provides a kind of television set, which includes the television set described in above-described embodiment
Start control circuit, the structure of the switching on and shutting down control circuit of the television set can refer to above-described embodiment, and details are not described herein.Reason
Should, it, should since the television set of the present embodiment uses the technical solution of the start control circuit of above-mentioned television set
Television set has all advantageous effects of the start control circuit of above-mentioned television set.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
It is every under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (8)
1. a kind of start control circuit of television set, which is characterized in that booting control terminal including television set, for providing power supply
The power end of voltage, is used for described the key circuit for exporting first threshold voltage signal according to the key command of user
First threshold voltage signal carries out voltage division processing and exports the first comparison circuit of second threshold voltage signal, for described the
Two threshold voltage signals carry out voltage division processing and export booting trigger signal the second comparison circuit and for receiving
Output opens machine control signal to the booting control terminal of television set to control touching for the television boot-strap when stating booting trigger signal
Send out device；
Wherein, the power input of the key circuit is connect with the power end, the signal output end of the key circuit with
The signal input part of first comparison circuit connects, and the signal output end of first comparison circuit and second comparison are electric
The signal input part on road connects, and the signal output end of second comparison circuit is connect with the signal input part of the trigger,
The signal output end of the trigger is connect with the booting control terminal of the television set.
2. the start control circuit of television set as described in claim 1, which is characterized in that the first comparator circuit includes
First bleeder circuit and the first PNP triode；
The signal input part of first bleeder circuit is connect with the signal output end of the key circuit, the first PNP tri-
The emitter of pole pipe is connect with the signal output end of the key circuit, the first bleeder circuit signal output end and described the
The base stage of one PNP triode connects, and the collector of first PNP triode and the signal of second comparator circuit input
End connection.
3. the start control circuit of television set as claimed in claim 2, which is characterized in that first bleeder circuit includes the
One resistance and second resistance；
One end of the first resistor is connect with the signal output end of the key circuit, the other end of the first resistor and institute
The base stage connection of the first PNP triode is stated, one end of the second resistance is connect with the base stage of first PNP triode, institute
State the other end ground connection of second resistance.
4. the start control circuit of television set as described in any one of claims 1 to 3, which is characterized in that described second compares
Device circuit includes the second bleeder circuit, the 5th resistance and the second NPN triode；
The signal input part of second bleeder circuit is connect with the signal output end of first comparison circuit, described second point
The signal output end of volt circuit is connect with the base stage of second NPN triode, the collector of second NPN triode and institute
One end connection of the 5th resistance is stated, the other end of the 5th resistance is connect with the signal output end of first comparison circuit,
The emitter of second NPN triode is grounded.
5. the start control circuit of television set as claimed in claim 4, which is characterized in that second bleeder circuit includes the
Three resistance and the 4th resistance；
One end of the 3rd resistor is connect with the signal output end of first comparison circuit, the other end of the 3rd resistor
It is connect with the base stage of second NPN triode, one end of the 4th resistance connects with the base stage of second NPN triode
It connects, the other end ground connection of the 4th resistance.
6. the start control circuit of television set as claimed in claim 5, which is characterized in that the key circuit includes the 6th electricity
Resistance, the 7th resistance and at least one key switch；
One end of 7th resistance is connect with the power end, the other end of the 7th resistance and the one of the key switch
End interconnection, the other end of the key switch are connect with one end of the 6th resistance, the other end ground connection of the 6th resistance,
7th resistance is connect with the interconnection end of the key switch with the signal input part of first comparison circuit.
7. the start control circuit of television set as claimed in claim 6, which is characterized in that the first threshold voltage is equal to institute
State second threshold voltage.
8. a kind of television set, which is characterized in that include the booting control electricity such as claim 4 to 7 any one of them television set
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820459181.8U CN207995245U (en) | 2018-04-03 | 2018-04-03 | The start control circuit and television set of television set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820459181.8U CN207995245U (en) | 2018-04-03 | 2018-04-03 | The start control circuit and television set of television set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207995245U true CN207995245U (en) | 2018-10-19 |
Family
ID=63830509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820459181.8U Expired - Fee Related CN207995245U (en) | 2018-04-03 | 2018-04-03 | The start control circuit and television set of television set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207995245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109688265A (en) * | 2018-12-21 | 2019-04-26 | Tcl移动通信科技（宁波）有限公司 | Mobile terminal emergency call dials control method, mobile terminal and storage medium |
-
2018
- 2018-04-03 CN CN201820459181.8U patent/CN207995245U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109688265A (en) * | 2018-12-21 | 2019-04-26 | Tcl移动通信科技（宁波）有限公司 | Mobile terminal emergency call dials control method, mobile terminal and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202841089U (en) | Power on-off circuit and electronic device having power on-off circuit | |
| CN206077348U (en) | A kind of on/off circuit and its device of mobile terminal | |
| CN204216616U (en) | A kind of portable power source | |
| CN102332898A (en) | Switching circuit with zero standby power consumption | |
| CN209448720U (en) | A kind of electric appliance reset circuit and electrical equipment | |
| CN206441115U (en) | Starting key circuit and electronic equipment | |
| CN207995245U (en) | The start control circuit and television set of television set | |
| CN103095257A (en) | Anti-shake circuit | |
| CN202495920U (en) | Reset circuit and set-top box having the circuit | |
| CN207010642U (en) | Key switch circuit | |
| CN205847223U (en) | A kind of singly-bound Sofe Switch electromechanics road possessing hardware forced shutdown function | |
| CN105897240A (en) | Single-button soft on-off circuit with hardware forced power-off function | |
| CN104122803A (en) | Solar standby power supply device | |
| CN103376748A (en) | Electronic device | |
| CN222073142U (en) | Interface multiplexing circuit | |
| CN107066021B (en) | A kind of button multiplexing circuit and electronic equipment | |
| CN206270864U (en) | Reset circuit | |
| CN205232185U (en) | Power supply switch control circuit | |
| CN209046611U (en) | A kind of power switch button circuit | |
| CN101374167A (en) | Anti-theft device for telephone circuit | |
| CN207265995U (en) | It is a kind of to use the key switch electromechanics road with ena-bung function linear voltage regulator | |
| CN207339408U (en) | Low-power consumption standby circuit | |
| CN110518543A (en) | A kind of short-circuit protection circuit and power supply system | |
| CN206601675U (en) | Reset and factory reset two-in-one circuit | |
| CN102736524A (en) | Power switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |