CN204810248U - Power delay switch circuit and have terminal of this circuit - Google Patents
Power delay switch circuit and have terminal of this circuit Download PDFInfo
- Publication number
- CN204810248U CN204810248U CN201520505862.XU CN201520505862U CN204810248U CN 204810248 U CN204810248 U CN 204810248U CN 201520505862 U CN201520505862 U CN 201520505862U CN 204810248 U CN204810248 U CN 204810248U
- Authority
- CN
- China
- Prior art keywords
- circuit
- triggering
- pin
- schmidt trigger
- output
- 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
- Electronic Switches (AREA)
Abstract
The utility model provides a power delay switch circuit and have terminal of this circuit includes: the switch button, the RC charging and discharging circuit who links to each other with the switch button, interfering signal's in the control signal of filtering RC charging and discharging circuit output anti -jamming circuit is linked to each other with RC charging and discharging circuit, link to each other with the anti -jamming circuit, receive the control signal after the filtering is disturbed, generate triggering signal's trigger circuit, the switch circuit that under triggering signal's triggering switch on is linked to each other with trigger circuit. The utility model discloses a power delay switch circuit, through setting up the anti -jamming circuit between RC charging and discharging circuit and trigger circuit, realize carrying out anti -interference processing to the control signal of RC charging and discharging circuit output, the filtering is at the in -process of delay circuit work because the interfering signal that factors such as equipment shake or electromagnetic interference were brought, the condition of having avoided the unit exception start or having shut down has further promoted terminal job stabilization nature to satisfy higher stable demand.
Description
Technical field
The application relates to technical field of intelligent traffic, in particular, particularly relates to a kind of power supply delay switch circuit and has the terminal of this circuit.
Background technology
Along with the development of science and technology, the life of people is more convenient, and in intelligent transportation field, handheld terminal is widely used in scenes such as parking fee collective systems gradually, does not tightly accelerate operating efficiency, ensure that normalization and the convenience of the whole course of work simultaneously.
But, because handheld terminal is carried with by staff usually, the stability problem of its equipment that brings simultaneously can not avoided easily.Such as, touch unintentionally the on & off switch of handheld terminal, cause some misoperations, also bring the loss of electricity, or shut down unintentionally in process of exchange, cause the transaction processed to interrupt, impact works normally.
Usually utilize delay switch circuit to reduce the occurrence probability of this situation in prior art.
But, because practical work situation is very complicated, although said method to a certain extent can the stability of lifting means, also fail to meet higher durability requirements.
Utility model content
In view of this, the object of the application is the terminal providing a kind of power supply delay switch circuit and have this circuit, cannot meet the problem of requirements at the higher level to solve handheld terminal stability in prior art.
A kind of power supply delay switch circuit, comprising:
Switch key;
Be connected with described switch key, repeat the RC charge-discharge circuit of charge and discharge process under the state of described switch key conducting, the signal exported during described RC charge-discharge circuit electric discharge is control signal;
Be connected with described RC charge-discharge circuit, the anti-jamming circuit of the interference signal in the control signal that RC charge-discharge circuit described in filtering exports;
Be connected with described anti-jamming circuit, receive the control signal after filtering interfering, generate the circuits for triggering of triggering signal;
Be connected with described circuits for triggering, the switching circuit of conducting under the triggering of described triggering signal.
Preferably, described anti-jamming circuit comprises:
Schmidt trigger circuit, the input of described Schmidt trigger circuit is connected with the output of described RC charge-discharge circuit, and the output of described Schmidt trigger circuit is connected with the input of described circuits for triggering.
Preferably, described Schmidt trigger circuit comprises: the first anti-phase Schmidt trigger and negative circuit;
The input pin of described first anti-phase Schmidt trigger is the input of described Schmidt trigger circuit, is connected with the output of described RC charge-discharge circuit;
The output pin of described first anti-phase Schmidt trigger is connected with the input of described negative circuit;
The output of described negative circuit is the output of described Schmidt trigger circuit, is connected with the input of described circuits for triggering.
Preferably, described negative circuit is the second anti-phase Schmidt trigger, and the output pin of described first anti-phase Schmidt trigger is connected with the input pin of described second anti-phase Schmidt trigger by the first resistance.
Preferably, described anti-jamming circuit is filter circuit, and described filter circuit comprises high pass filter.
Preferably, described circuits for triggering comprise:
First d type flip flop and the second d type flip flop, wherein, the clock input pin of described first d type flip flop is the input of described circuits for triggering, be connected with the output of described Schmidt trigger circuit, the data-out pin of described first d type flip flop is connected with the first power supply with power input pin, grounding pin and set pin ground connection, and anti-phase output pin puts sky, reset pin is by the first capacity earth, and forward output pin to be connected with described first electric capacity by the second resistance and to be grounded;
The clock input pin of described second d type flip flop is connected with the forward output pin of described first d type flip flop, data-out pin is connected with anti-phase output pin, set pin ground connection, reset pin is by the 3rd grounding through resistance, and, be connected with described first power supply by the second electric capacity, described anti-phase output pin is the output of described circuits for triggering.
Preferably, described RC charge-discharge circuit comprises:
The first transistor, the emitter of described the first transistor is connected with one end of key switch, and ground connection, the base stage of described the first transistor is connected with the other end of described key switch, the base stage of described the first transistor is connected with the first power supply by the 4th resistance, and, by the 5th grounding through resistance;
The 6th resistance be connected with described first crystal pipe collector;
Positive pole is connected with described 4th resistance, the electrochemical capacitor of minus earth;
Positive pole is connected with the collector electrode of described the first transistor, the rectifier diode that negative pole is connected with the positive pole of described electrochemical capacitor.
Preferably, described switching circuit is PMOS electronic switch, and the output of described circuits for triggering is connected with the grid of the POMS pipe in described PMOS electronic switch.
A kind of handheld terminal, described handheld terminal comprises power delay circuit as above.
A kind of electronic tag issue terminal, described electronic tag issue terminal comprises power delay circuit as above.
Power supply delay switch circuit disclosed in the present application, by arranging anti-jamming circuit between RC charge-discharge circuit and circuits for triggering, the control signal realized RC charge-discharge circuit exports carries out anti-interference process, filtering is in the process of delay circuit work, due to the interference signal that the factors such as equipment shake or electromagnetic interference are brought, avoid the situation of unit exception start or shutdown, improve the stability of terminal works further, to meet higher durability requirements.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of Fig. 1 a kind of power supply delay switch circuit disclosed in the embodiment of the present application;
Anti-jamming circuit structure schematic diagram in Fig. 2 power supply delay switch circuit disclosed in the embodiment of the present application;
Fig. 3 is another anti-jamming circuit structure schematic diagram disclosed in the embodiment of the present application;
The structural representation of Fig. 4 RC charge-discharge circuit disclosed in the embodiment of the present application;
The structural representation of Fig. 5 circuits for triggering disclosed in the embodiment of the present application;
The structural representation of Fig. 6 switching circuit disclosed in the embodiment of the present application;
The structural representation of Fig. 7 another power supply delay switch circuit disclosed in the embodiment of the present application.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The power supply delay switch circuit that the embodiment of the present application provides is applied to handheld terminal, such as, in POS.By arranging the mode of anti-jamming circuit in the middle of RC charge-discharge circuit and circuits for triggering, filtering interference signals, the stability of terminal of having deducted a percentage further.
The structure of power supply delay switch circuit disclosed in the embodiment of the present application as shown in Figure 1.Comprise:
Switch key 101, is connected with switch key, and the signal exported when RC charge-discharge circuit 102, the RC charge-discharge circuit 102 repeating charge and discharge process under the state of switch key conducting discharges is control signal.
Be connected with RC charge-discharge circuit 102, the anti-jamming circuit 103 of the interference signal in the control signal that filtering RC charge-discharge circuit 102 exports.
Be connected with anti-jamming circuit 103 circuit, receive the control signal after filtering interfering, generate the circuits for triggering 104 of triggering signal.
Be connected with circuits for triggering 104, the switching circuit of conducting under the triggering of triggering signal.
Disclosed in the embodiment of the present application, the course of work of power supply delay switch circuit is as follows:
After staff presses switch key 101, make circuit turn-on, RC charge-discharge circuit 102 starts charging, and the electric capacity both end voltage trigger in RC charge-discharge circuit 102 rises.Time needed for its charging process can obtain according to following formulae discovery:
V
t=V
0+ (V
u-V
0) * [1-e
(-t/RC)] formula (1)
Wherein, V
0for the initial voltage value on electric capacity; V
ufor electric capacity is full of final voltage value; V
tfor any time t, the magnitude of voltage on electric capacity.If, voltage be E power supply by resistance to initial value be 0 electric capacity C charge V
0=0, charging limit V
u=E, therefore, any time t, the voltage on electric capacity is:
V
t=E* [1-e
(-t/RC)], formula (2)
So, t=RC*Ln [E/ (E-V
t)].Formula (3)
If the voltage V on certain moment electric capacity known
t, time t can be calculated according to constant.
During electric discharge, V
0=E, V
u=0, thus capacitor discharge, any time t, the voltage on electric capacity is:
V
t=E*e
(-t/RC), formula (4)
So, t=RC*Ln [E/V
t].Formula (5)
So, the time of being pressed by button is only had to be more than or equal to t, namely, the time of circuit ON is when ensureing on its charging duration, RC charge-discharge circuit just can reach certain voltage, as control signal, anti-jamming circuit is by the interference filtering in control signal, and then control triggering electric circuit work, generates triggering signal, as control signal, anti-jamming circuit is by the interference filtering in control signal, and then control triggering electric circuit work, generates triggering signal, triggering signal is sent to switching circuit by circuits for triggering, opening device.After switch key is switched on, RC charge-discharge circuit needs to wait for that RC charge-discharge circuit reaches certain voltage, just control signal can be continued to send to switching circuit, realizes delay control switch open with this.
In like manner, when shutting down, again switch key is pressed, the time that button is pressed is more than or equal to t, that is, when the time of circuit ON ensures on its charging duration, RC charge-discharge circuit just can reach certain voltage, as control signal, anti-jamming circuit by the interference filtering in control signal, then control triggering electric circuit work, generate triggering signal, trigger finally exports an anti-phase signal, cuts off circuit, then now equipment shutdown.Therefore, after pressing switch key, need to wait for that RC charge-discharge circuit reaches certain voltage, equipment shutdown could be realized, realize the shutoff of delay control switch with this.
In the embodiment of the present application, by arranging anti-jamming circuit between RC charge-discharge circuit and circuits for triggering, the control signal realized RC charge-discharge circuit exports carries out anti-interference process, filtering is in the process of delay circuit work, due to the interference signal that the factors such as equipment shake or electromagnetic interference are brought, avoid the situation of unit exception start or shutdown, improve the stability of terminal works further, to meet higher durability requirements.
Further, anti-jamming circuit disclosed in the embodiment of the present application is Schmidt circuit, namely utilizes the characteristic of Schmidt trigger to realize anti-interference.Concrete, as shown in Figure 2, comprise the first anti-phase Schmidt trigger S1 and negative circuit 22, wherein negative circuit is not gate to the structure of Schmidt trigger circuit.
The input pin A of the first anti-phase Schmidt trigger S1 is the input of described Schmidt trigger circuit, is connected with the output of described RC charge-discharge circuit; The output pin Y of described first anti-phase Schmidt trigger is connected with the input of described negative circuit; The output of described negative circuit 22 is the output of described Schmidt trigger circuit, is connected with the input of described circuits for triggering.The power pins VCC of the first anti-phase Schmidt trigger is connected with the first power supply VSW, grounding pin GND ground connection.
Due to the output of the first anti-phase Schmidt trigger with input in anti-phase, then by negative circuit, output signal is adjusted to and input signal homophase.
First anti-phase Schmidt trigger S1 utilizes self characteristic, when control signal does not reach the situation of forward preset voltage or is reduced to reverse threshold voltage, do not respond, thus avoid when delay circuit at work, POS when vibrated or electromagnetic interference, the disturbance current occurred is directly inputted to circuits for triggering, causes the exception start of POS or the situation of shutdown.
The embodiment of the present application does not limit the adjustment utilizing negative circuit to realize output signal, another anti-phase Schmidt trigger can also be utilized to realize, its structure as shown in Figure 3, comprising: the first anti-phase Schmidt trigger S1 and the second anti-phase Schmidt trigger S2.
Wherein, the power pins VCC of the first anti-phase Schmidt trigger S1 is connected with the first power supply VSW, grounding pin GND ground connection, its output pin Y is connected with the input pin A of the second anti-phase Schmidt trigger S2, the power pins VCC of the second anti-phase Schmidt trigger S2 is connected with the first power supply VSW, grounding pin GND ground connection, the second anti-phase Schmidt trigger S2 output pin Y is as the output of whole anti-jamming circuit.The output pin of the first anti-phase Schmidt trigger is connected with the input pin of the second anti-phase Schmidt trigger by the first resistance R1.
In the present embodiment, utilize two anti-phase Schmidt triggers except guarantee circuit output signal and input signal homophase, also utilize the second anti-phase Schmidt trigger S2 to carry out further anti-interference operation, improve the stability of terminal further.
Disclosed in the embodiment of the present application, the model of the first anti-phase Schmidt trigger is 74HC1G14, and the model of the second anti-phase Schmidt trigger is 74HC1G04.Certainly, the application does not limit it can only this kind of way of realization.
Embodiment disclosed in the present application does not limit and anti-phase Schmidt trigger can only be utilized to form anti-jamming circuit.It can also directly utilize forward Schmidt trigger.Further, the embodiment of the present application does not limit anti-jamming circuit yet and Schmidt trigger can only be utilized to form, and it can utilize filter circuit equally, and such as, anti-jamming circuit can also comprise high pass filter, utilizes high pass filter filtering interference signals.Therefore, every circuit structure that can realize anti-interference function is all the protection range of the application.
Disclosed in the embodiment of the present application, the structure of RC charge-discharge circuit as shown in Figure 4, comprising:
The first transistor Q1, the emitter of described the first transistor Q1 is connected with one end of key switch K, and ground connection, the base stage of described the first transistor is connected with the other end of described key switch K, the base stage of described the first transistor is connected with the first power supply VSW by the 4th resistance R4, further, by the 5th resistance R5 ground connection;
The 6th resistance R6 be connected with described the first transistor Q1 collector electrode;
Positive pole is connected with described 4th resistance R4, the electrochemical capacitor C1 of minus earth;
Positive pole is connected with the collector electrode of described the first transistor Q1, the rectifier diode RD1 that negative pole is connected with the positive pole of described electrochemical capacitor C1;
The first transistor Q1 collector electrode is connected with the first power supply by the 7th resistance R7.
Disclosed in the embodiment of the present application, the structure of RC charge-discharge circuit can be applied in any one embodiment above-mentioned, and the application does not limit the structure of RC charge-discharge circuit can only be as shown in Figure 4.Any circuit structure that can realize RC charging/discharging function is all the scope of the embodiment of the present application protection.
The structure of circuits for triggering disclosed in the embodiment of the present application as shown in Figure 5, comprising:
First d type flip flop 51 and the second d type flip flop 52, wherein, the clock input pin CLK of described first d type flip flop 51
1for the input of described circuits for triggering, be connected with the output of described Schmidt trigger circuit, the data-out pin D of described first d type flip flop
1with power input pin VDD
1be connected with the first power supply VSW, grounding pin VSS
1with SET
1with set pin ground connection, anti-phase output pin
put sky, reset pin RST
1by the first electric capacity C
1ground connection, forward output pin Q
1by the second resistance R
2with described first electric capacity C
1be connected and be grounded;
The clock input pin CLK of described second d type flip flop 52
2with the forward output pin Q of described first d type flip flop
1be connected, data-out pin D
2with anti-phase output pin
be connected, set pin SET
2ground connection, reset pin RST
2by the 3rd resistance R
3ground connection, and, by the second electric capacity C
2be connected with described first power supply VSW, described anti-phase output pin
for the output of described circuits for triggering.
In the present embodiment, the switching logic of double D trigger to delay circuit is utilized to control.When RC charge-discharge circuit discharges, the input of anti-jamming circuit becomes high level, and its output also exports high level signal, and the high level exported from anti-jamming circuit is linked into the clock input pin CLK of the first d type flip flop
1, trigger Q at rising edge
1export high level, by Q
1be linked into the clock input pin CLK of the second d type flip flop
2, trigger second d type flip flop at rising edge
export; Q
1after exporting rising edge, the RST of the first d type flip flop
1high level reset Q1, and by Q1,
be latched as low level, until RC charge-discharge circuit is activated again.
The first d type flip flop in the present embodiment and the model of the second d type flip flop are CD4013.
The model that the application does not limit d type flip flop can only be CD4013, and the d type flip flop of any one model can be applied in the scheme of the application.
Meanwhile, the application does not limit circuits for triggering yet and can only be realized by d type flip flop, can also complete for the trigger of rest-set flip-flop or other types.As long as the circuit structure that can realize Trigger Function is all the scope of the embodiment of the present application protection.
The application also discloses the structure of switching circuit, and as shown in Figure 6, switching circuit disclosed in the present embodiment is PMOS electronic switch, comprising: PMOS Q
2, Q
2grid G be connected with the output of circuits for triggering, source class S is by the 8th resistance R
8be connected with grid G, drain D is connected with second source VCC, and, by the 3rd electric capacity C
3ground connection.
Switching circuit disclosed in the present application is made up of PMOS, then when circuits for triggering output low level, and PMOS conducting, switch conduction.
Comprehensively each embodiment above-mentioned, the overall structure of power supply delay switch circuit disclosed in the embodiment of the present application as shown in Figure 7.
Its course of work can with reference to above-described embodiment.
In power supply delay switch circuit disclosed in the present application, circuits for triggering can also pass through the 9th resistance R
9be connected with switching circuit.
In the open circuit of the embodiment of the present application, do not limit switching circuit and select PMOS electronic switch, it also can select NMOS electronic switch.Just need to adjust accordingly circuits for triggering, make it export and become high level.Concrete adjustment mode can be, such as, at the output of existing circuits for triggering external negater circuit, a not gate.Also can, by changing the inner connecting way of circuits for triggering, it be made directly to export high level.
Power supply delay switch circuit disclosed in the embodiment of the present application by arranging anti-jamming circuit between RC charge-discharge circuit and circuits for triggering, the control signal realized RC charge-discharge circuit exports carries out anti-interference process, filtering is in the process of delay circuit work, due to the interference signal that the factors such as equipment shake or electromagnetic interference are brought, avoid the situation of unit exception start or shutdown, improve the stability of terminal works further, to meet higher durability requirements.
Meanwhile, this application discloses a kind of handheld terminal, it includes above-described embodiment any one power delay circuit disclosed.Disclosed herein as well is a kind of electronic tag issue terminal, it includes above-described embodiment any one power delay circuit disclosed simultaneously.
Power delay circuit disclosed in the embodiment of the present application can be applied in any one to be needed to use in the equipment of power delay circuit.No matter which kind of equipment it is applied in, all can embody its stronger antijamming capability, and accordingly, the distinguishing feature of the stability of lifting means work.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For device class embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising key element and also there is other identical element.
To the above-mentioned explanation of the disclosed embodiments, those skilled in the art are realized or uses the utility model.To be apparent for a person skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Below be only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. a power supply delay switch circuit, is characterized in that, comprising:
Switch key;
Be connected with described switch key, repeat the RC charge-discharge circuit of charge and discharge process under the state of described switch key conducting, the signal exported during described RC charge-discharge circuit electric discharge is control signal;
Be connected with described RC charge-discharge circuit, the anti-jamming circuit of the interference signal in the control signal that RC charge-discharge circuit described in filtering exports;
Be connected with described anti-jamming circuit, receive the control signal after filtering interfering, generate the circuits for triggering of triggering signal;
Be connected with described circuits for triggering, the switching circuit of conducting under the triggering of described triggering signal.
2. circuit according to claim 1, is characterized in that, described anti-jamming circuit comprises:
Schmidt trigger circuit, the input of described Schmidt trigger circuit is connected with the output of described RC charge-discharge circuit, and the output of described Schmidt trigger circuit is connected with the input of described circuits for triggering.
3. circuit according to claim 2, is characterized in that, described Schmidt trigger circuit comprises: the first anti-phase Schmidt trigger and negative circuit;
The input pin of described first anti-phase Schmidt trigger is the input of described Schmidt trigger circuit, is connected with the output of described RC charge-discharge circuit;
The output pin of described first anti-phase Schmidt trigger is connected with the input of described negative circuit;
The output of described negative circuit is the output of described Schmidt trigger circuit, is connected with the input of described circuits for triggering.
4. circuit according to claim 3, it is characterized in that, described negative circuit is the second anti-phase Schmidt trigger, and the output pin of described first anti-phase Schmidt trigger is connected with the input pin of described second anti-phase Schmidt trigger by the first resistance.
5. circuit according to claim 1, is characterized in that, described anti-jamming circuit is filter circuit, and described filter circuit comprises high pass filter.
6. according to the circuit in claim 1-5 described in any one, it is characterized in that, described circuits for triggering comprise:
First d type flip flop and the second d type flip flop, wherein, the clock input pin of described first d type flip flop is the input of described circuits for triggering, be connected with the output of described Schmidt trigger circuit, the data-out pin of described first d type flip flop is connected with the first power supply with power input pin, grounding pin and set pin ground connection, and anti-phase output pin puts sky, reset pin is by the first capacity earth, and forward output pin to be connected with described first electric capacity by the second resistance and to be grounded;
The clock input pin of described second d type flip flop is connected with the forward output pin of described first d type flip flop, data-out pin is connected with anti-phase output pin, set pin ground connection, reset pin is by the 3rd grounding through resistance, and, be connected with described first power supply by the second electric capacity, described anti-phase output pin is the output of described circuits for triggering.
7. circuit according to claim 6, is characterized in that, described RC charge-discharge circuit comprises:
The first transistor, the emitter of described the first transistor is connected with one end of key switch, and ground connection, the base stage of described the first transistor is connected with the other end of described key switch, the base stage of described the first transistor is connected with the first power supply by the 4th resistance, and, by the 5th grounding through resistance;
The 6th resistance be connected with described first crystal pipe collector;
Positive pole is connected with described 4th resistance, the electrochemical capacitor of minus earth;
Positive pole is connected with the collector electrode of described the first transistor, the rectifier diode that negative pole is connected with the positive pole of described electrochemical capacitor.
8. circuit according to claim 7, is characterized in that, described switching circuit is PMOS electronic switch, and the output of described circuits for triggering is connected with the grid of the POMS pipe in described PMOS electronic switch.
9. a handheld terminal, is characterized in that, described handheld terminal comprises the power delay circuit described in any one of claim 1 to 8.
10. an electronic tag issue terminal, is characterized in that, described electronic tag issue terminal comprises the power delay circuit described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520505862.XU CN204810248U (en) | 2015-07-13 | 2015-07-13 | Power delay switch circuit and have terminal of this circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520505862.XU CN204810248U (en) | 2015-07-13 | 2015-07-13 | Power delay switch circuit and have terminal of this circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204810248U true CN204810248U (en) | 2015-11-25 |
Family
ID=54594997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520505862.XU Active CN204810248U (en) | 2015-07-13 | 2015-07-13 | Power delay switch circuit and have terminal of this circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204810248U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106027005A (en) * | 2016-06-15 | 2016-10-12 | 湖南工业大学 | Single firewire switch |
| CN106033967A (en) * | 2016-06-15 | 2016-10-19 | 湖南工业大学 | Capacitive touch switch |
| CN106100629A (en) * | 2016-06-15 | 2016-11-09 | 湖南工业大学 | Single live wire soft-touch control |
| CN106155167A (en) * | 2016-06-15 | 2016-11-23 | 湖南工业大学 | Capacitance touch list live wire switchs |
| CN106600853A (en) * | 2016-12-06 | 2017-04-26 | 青岛海信智能商用系统股份有限公司 | Anti-jittering circuit used for charging or signal transmission of charging base, and charging base |
| CN106586346A (en) * | 2017-01-10 | 2017-04-26 | 任帆 | Garbage compacting box garbage scattering-free hopper |
| CN110703010A (en) * | 2019-09-25 | 2020-01-17 | 珠海亿智电子科技有限公司 | Test circuit |
-
2015
- 2015-07-13 CN CN201520505862.XU patent/CN204810248U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106027005A (en) * | 2016-06-15 | 2016-10-12 | 湖南工业大学 | Single firewire switch |
| CN106033967A (en) * | 2016-06-15 | 2016-10-19 | 湖南工业大学 | Capacitive touch switch |
| CN106100629A (en) * | 2016-06-15 | 2016-11-09 | 湖南工业大学 | Single live wire soft-touch control |
| CN106155167A (en) * | 2016-06-15 | 2016-11-23 | 湖南工业大学 | Capacitance touch list live wire switchs |
| CN106155167B (en) * | 2016-06-15 | 2017-10-20 | 湖南工业大学 | Capacitance touch list live wire is switched |
| CN106100629B (en) * | 2016-06-15 | 2019-01-04 | 湖南工业大学 | Single firewire soft-touch control |
| CN106027005B (en) * | 2016-06-15 | 2019-01-04 | 湖南工业大学 | Single firewire switch |
| CN106033967B (en) * | 2016-06-15 | 2019-03-01 | 湖南工业大学 | Capacitor type touch switch |
| CN106600853A (en) * | 2016-12-06 | 2017-04-26 | 青岛海信智能商用系统股份有限公司 | Anti-jittering circuit used for charging or signal transmission of charging base, and charging base |
| CN106586346A (en) * | 2017-01-10 | 2017-04-26 | 任帆 | Garbage compacting box garbage scattering-free hopper |
| CN106586346B (en) * | 2017-01-10 | 2018-11-02 | 任一帆 | A kind of garbage compression box rubbish is without shedding hopper |
| CN110703010A (en) * | 2019-09-25 | 2020-01-17 | 珠海亿智电子科技有限公司 | Test circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204810248U (en) | Power delay switch circuit and have terminal of this circuit | |
| CN205017207U (en) | Switching on and shutting down control circuit and switching power supply | |
| CN109194317B (en) | Reset circuit and wearable equipment | |
| CN205751476U (en) | A kind of power supply circuits of OLED display screen | |
| CN204886263U (en) | Super capacitor control circuit that discharges | |
| CN101860188B (en) | Switch power supply circuit | |
| CN206559133U (en) | Power supply switch circuit | |
| CN203590185U (en) | Starting-up and reset one-key circuit of intelligent terminal | |
| CN107197571A (en) | It is a kind of to prevent the BUCK type LED drive circuits of lower electric backflash | |
| CN204761290U (en) | Single bond the low voltage power supply ON -OFF control circuit | |
| CN102868387B (en) | A kind of level saltus step reset IC design circuit | |
| CN207732504U (en) | Power supply automatic switchover circuit and intelligent electric meter microcontroller chip | |
| CN206948673U (en) | A kind of BUCK type LED drive circuits for preventing lower electric backflash | |
| CN203313051U (en) | Efficient release circuit structure | |
| CN204947900U (en) | Power management circuit of electronic lock | |
| CN104281244A (en) | Time-delay device and time-delay circuits | |
| CN204697033U (en) | System reset circuit and electronic equipment | |
| CN204376859U (en) | Realize the system of autoboot after GNSS receiver power-off | |
| CN205212497U (en) | Power supply system is prevented in low -power consumption shutdown circuit and low -power consumption | |
| CN110165743A (en) | Automatic load detection circuit and automatic load detection method | |
| CN206506281U (en) | Battery low-voltage protection circuit and electronic equipment | |
| CN205015670U (en) | Dual power supply and outage time schedule control device | |
| CN211478984U (en) | Low-power consumption monostable circuit capable of being triggered repeatedly | |
| CN100495915C (en) | CMOS single stabilization circuit | |
| CN204290917U (en) | Hard triggering boot-strap circuit and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |