CN203645638U - Toggle switch circuit and electronic device provided with same - Google Patents
Toggle switch circuit and electronic device provided with same Download PDFInfo
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- CN203645638U CN203645638U CN201320885355.4U CN201320885355U CN203645638U CN 203645638 U CN203645638 U CN 203645638U CN 201320885355 U CN201320885355 U CN 201320885355U CN 203645638 U CN203645638 U CN 203645638U
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- toggle switch
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- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model provides a toggle switch circuit and an electronic device provided with the same in order to solve a problem that the connection stability of an existing toggle switch is reduced because of aging or poor switching in the process of long-term use. A defect that the state of a product is abnormal because of suspension of the common pin is avoided through changing the connecting mode of a common pin of the toggle switch and additionally arranging a state maintenance port on the common pin. The connection stability of the toggle switch is effectively improved without increasing the cost or with a minimum cost.
Description
Technical field
The utility model relates to a kind of toggle switch circuit and has the electronic equipment of this circuit.
Background technology
Toggle switch is by toggle switch handle, circuit to be switched on or switched off, thereby reaches the object of commutation circuit.Thisly substitute by physical connection the switching circuit that electronic component is barricaded as, there is cost low, take the advantages such as pcb board area is little.Thereby do less and less along with electronic product size at present, the application of toggle switch on portable type electronic product is more and more extensive, rationally uses toggle switch design can increase the attractive in appearance and reliability of the ID of product.
In use there is following defect in above-mentioned toggle switch: toggle switch can be because switch be aging or the bad toggle switch connective stability that causes of switch reduces in long-term use procedure, and all there is an intermediateness as mechanical switch in toggle switch, be that contact or copper sheet have certain probability to rest between two shell fragments, make the unsettled disconnection that is connected with other pins of public pin, cause Product Status abnormal.
Utility model content
Can be because switch be aging or the bad problem that causes toggle switch connective stability to reduce of switch in long-term use procedure for solving existing toggle switch, the utility model proposes a kind of toggle switch circuit, comprise toggle switch, system power supply and controller, described toggle switch comprises ON pin, OFF pin and public pin, the Enable Pin of this public pin connected system power supply, the output of described system power supply is connected to the power input of described controller, wherein, the second road input/output port of described controller is connected on described public pin in order to detect the state of toggle switch, first via input/output port is connected to the Enable Pin of described system power supply in order to control the operating state of described system power supply.
Further, between described public pin and ground, be connected with electrostatic protection device.
Based on above-mentioned toggle switch circuit, the utility model also proposes a kind of electronic equipment that comprises described toggle switch circuit.
In addition, the utility model also proposes a kind of toggle switch circuit, comprise toggle switch, system power supply and controller, described toggle switch comprises ON pin, OFF pin and public pin, the Enable Pin of this public pin connected system power supply, the output of described system power supply is connected to the power input of described controller, wherein, the first via input/output port of described controller is by being connected and disconnection between ON pin described in electronic switching circuit control and the Enable Pin of described system power supply, the control end of described electronic switching circuit is connected to the first via input/output port of described controller, the first conduction terminal is connected to described ON pin, the second conduction terminal is connected to the Enable Pin of described system power supply.
Further, described electronic switching circuit comprises control switch and PMOS pipe, the control end of described control switch is connected to the first via input/output port of described controller, the first conduction terminal ground connection, the second conduction terminal is connected to the grid of PMOS pipe, the source electrode of PMOS pipe is connected to described ON pin, and drain electrode is connected to the Enable Pin of described system power supply.
Further, described control switch is NPN type triode, and the base stage of this NPN type triode is connected to the first via input/output port of described controller, grounded emitter, and collector electrode is connected to the grid of PMOS pipe.
Further, the second road input/output port of described controller is connected on described public pin in order to detect the state of toggle switch.
Further, between the first via input/output port of described controller and ground, be connected with electrostatic protection device.
Based on above-mentioned toggle switch circuit, the utility model also proposes a kind of electronic equipment with described toggle switch circuit.
Compared with prior art, advantage of the present utility model and good effect are as follows:
The utility model design is by the connected mode of the public pin of change toggle switch, after start, on public pin, add a state and maintain mouth, avoid the unsettled abnormal defect of Product Status that causes of public pin, do not increased cost or effectively improving the connective stability of toggle switch with minimum cost.
Read by reference to the accompanying drawings after embodiment of the present utility model, other features of the present utility model and advantage will become clearer.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model embodiment mono-toggle switch circuit theory diagrams;
Fig. 2 is the utility model embodiment bis-toggle switch circuit theory diagrams.
Embodiment
Because toggle switch is mechanical switch, its contact or copper sheet have certain probability to rest between two shell fragments, make the unsettled disconnection that is connected with other pins of public pin, cause Product Status abnormal.The utility model is connected to system power supply circuit take toggle switch is starting point, finds to change the connected mode of public pin by great many of experiments, on public pin, increases a state and maintains mouth, can effectively avoid the unsettled product that causes of public pin abnormal.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment mono-, the present embodiment maintains power work state automatically by controller MCU, with reference to figure mono-, the present embodiment switching circuit comprises toggle switch, system power supply and controller, described toggle switch comprises ON pin, OFF pin and public pin, the Enable Pin of this public pin connected system power supply, the output of described system power supply is connected to the power input of described controller, it is upper in order to detect the state of toggle switch that the second road input/output port I/O2 of described MCU is connected to described public pin, first via input/output port I/O1 is connected to the Enable Pin of described system power supply in order to control the operating state of described system power supply.
When use, when switching toggle is to ON pin and after starting shooting, the I/O1 of MCU can send high level and maintain power-supply system work, causes switch loose contact if touched by mistake, and MCU runs well by I/O1 assurance equipment; While I/O2 can judge as monitoring mouth a state for toggle switch, and when user thinks initiatively shutdown and switching toggle is arrived after OFF pin, I/O2 can monitor and by MCU, I/O1 be set low to realize shutdown.
Repeatedly stir public pin and easily produce static, for the harmful effect that prevents that generation of static electricity from bringing, the present embodiment is connected with electrostatic protection device D between described public pin and ground, and this electrostatic protection device D can be the diode of two reversal connections.
The present embodiment toggle switch circuit can be applied on the electronic equipment such as earphone, game paddle, can effectively improve its open state stability.
Embodiment bis-, the present embodiment is built " virtual " switch by electronic component, be equivalent to in boot action insurance.Particularly, with reference to figure 2, the present embodiment toggle switch circuit comprises toggle switch, system power supply and MCU, described toggle switch comprises ON pin, OFF pin and public pin, the Enable Pin of this public pin connected system power supply, the output of described system power supply is connected to the power input of described MCU, wherein, the first via input/output port I/O1 of described MCU is by being connected and disconnection between ON pin described in electronic switching circuit control and the Enable Pin of described system power supply, the control end of described electronic switching circuit is connected to the first via input/output port I/O1 of described MCU, the first conduction terminal is connected to described ON pin, the second conduction terminal is connected to the Enable Pin of described system power supply.
Consider and reduce costs, the present embodiment electronic switching circuit comprises NPN type triode and PMOS pipe, the base stage of this NPN type triode is connected to the first via input/output port I/O1 of described MCU, grounded emitter, collector electrode is connected to the grid of PMOS pipe, the source electrode of PMOS pipe is connected to described ON pin, and drain electrode is connected to the Enable Pin of described system power supply.Select NPN triode because its cost is minimum, certainly, disregard cost, triode also can change PMOS pipe into.
When practical application, switching toggle is after ON pin start, MCU can utilize the electronic circuit shown in Fig. 2 (NPN triode+P channel MOS tube) to build a virtual switch, even if cause switch to disconnect because touch by mistake, MCU is in a moment powering on, can send high level to first via input/output port I/O1, control the conducting of NPN triode, and then PMOS conducting, the Enable Pin of ON pin and system power supply is in connected state, so, virtual switch plays the effect that substitutes mechanical switch, thereby can guarantee the normal operation of equipment.The present embodiment selects PMOS can guarantee that large electric current passes through.
The present embodiment is selected whether to send high level to I/O1 by judging the power-up state of MCU, certainly, also can detect by the second road input/output port I/O2 the state of toggle switch, as the second input/output port I/O2 of embodiment mono-MCU is connected on public pin, in the time that MCU detects that public pin pushes ON pin, send high level by I/O1.
Equally, for the harmful effect that prevents that generation of static electricity from bringing, the present embodiment is connected with electrostatic protection element D between MCU mono-road input/output port I/O1 and ground.
The present embodiment toggle switch circuit can be applied on the electronic equipment such as earphone, game paddle equally.
The above, be only preferred embodiment of the present utility model, is not to restriction of the present utility model, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But, every technical solutions of the utility model content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection range of technical solutions of the utility model.
Claims (9)
1. a toggle switch circuit, comprise toggle switch, system power supply and controller, described toggle switch comprises ON pin, OFF pin and public pin, the Enable Pin of this public pin connected system power supply, the output of described system power supply is connected to the power input of described controller, it is characterized in that: the second road input/output port of described controller is connected on described public pin in order to detect the state of toggle switch, and first via input/output port is connected to the Enable Pin of described system power supply in order to control the operating state of described system power supply.
2. toggle switch circuit according to claim 1, is characterized in that: between described public pin and ground, be connected with electrostatic protection device.
3. a toggle switch circuit, comprise toggle switch, system power supply and controller, described toggle switch comprises ON pin, OFF pin and public pin, the Enable Pin of this public pin connected system power supply, the output of described system power supply is connected to the power input of described controller, it is characterized in that: the first via input/output port of described controller is by being connected and disconnection between ON pin described in electronic switching circuit control and the Enable Pin of described system power supply, the control end of described electronic switching circuit is connected to the first via input/output port of described controller, the first conduction terminal is connected to described ON pin, the second conduction terminal is connected to the Enable Pin of described system power supply.
4. toggle switch circuit according to claim 3, it is characterized in that: described electronic switching circuit comprises control switch and PMOS pipe, the control end of described control switch is connected to the first via input/output port of described controller, the first conduction terminal ground connection, the second conduction terminal is connected to the grid of PMOS pipe, the source electrode of PMOS pipe is connected to described ON pin, and drain electrode is connected to the Enable Pin of described system power supply.
5. toggle switch circuit according to claim 4, it is characterized in that: described control switch is NPN type triode, the base stage of this NPN type triode is connected to the first via input/output port of described controller, grounded emitter, and collector electrode is connected to the grid of PMOS pipe.
6. toggle switch circuit according to claim 5, is characterized in that: the second road input/output port of described controller is connected on described public pin in order to detect the state of toggle switch.
7. toggle switch circuit according to claim 6, is characterized in that: between the first via input/output port of described controller and ground, be connected with electrostatic protection device.
8. an electronic equipment, is characterized in that: on this electronic equipment, have the toggle switch circuit described in any one in claim 1-2.
9. an electronic equipment, is characterized in that: on this electronic equipment, have the toggle switch circuit described in any one in claim 3-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885355.4U CN203645638U (en) | 2013-12-31 | 2013-12-31 | Toggle switch circuit and electronic device provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885355.4U CN203645638U (en) | 2013-12-31 | 2013-12-31 | Toggle switch circuit and electronic device provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645638U true CN203645638U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885355.4U Expired - Lifetime CN203645638U (en) | 2013-12-31 | 2013-12-31 | Toggle switch circuit and electronic device provided with same |
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| Country | Link |
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| CN (1) | CN203645638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701441A (en) * | 2013-12-31 | 2014-04-02 | 青岛歌尔声学科技有限公司 | Toggle switch circuit and electronic equipment with same |
-
2013
- 2013-12-31 CN CN201320885355.4U patent/CN203645638U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701441A (en) * | 2013-12-31 | 2014-04-02 | 青岛歌尔声学科技有限公司 | Toggle switch circuit and electronic equipment with same |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |