CN207337336U - One kind charging reset circuit and electronic equipment - Google Patents
One kind charging reset circuit and electronic equipment Download PDFInfo
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- CN207337336U CN207337336U CN201721087112.0U CN201721087112U CN207337336U CN 207337336 U CN207337336 U CN 207337336U CN 201721087112 U CN201721087112 U CN 201721087112U CN 207337336 U CN207337336 U CN 207337336U
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Abstract
The utility model discloses one kind charging reset circuit and electronic equipment, it is related to wearable device technical field, which includes：Sequentially connected MCU, rectification circuit, delay circuit and reset circuit, wherein, the reset circuit is connected with the MCU；The MCU exports square wave to rectification circuit progress rectification and switchs to DC voltage, controls delay circuit and the reset circuit cut-off to work normally the MCU successively by DC voltage；When the MCU is abnormal, the delay circuit is charged and turning on the reset circuit resets the MCU.The utility model embodiment is applied when on the wearable device of no reset key, physical button of the prior art is not required, whether detected automatically by its circuit currently needs to reset, MCU normal works can make reset circuit not work with output control signal, when MCU is abnormal, reset circuit automatically resets the MCU, simple in structure, cost is greatly reduced, while is provided convenience for the miniaturization of product.
Description
Technical field
It the utility model is related to wearable device technical field, more particularly to a kind of charging reset circuit and electronic equipment.
Background technology
Wearable device is quickly grown in recent years, and user's pursues so that explosive growth occurs in Intelligent hardware market, in the past
Product usually uses button hand-reset, this more than ten years, and science and technology is evolving, and many element circuits are integrated, miniaturization so that
Current electronic product size realizes reset to miniaturization without the mode of space increase button.
During the utility model is realized, inventor has found that at least there are the following problems in the prior art：Minimizing
Wearable device on because corresponding button cannot be set, can not realize reset function.
Utility model content
In order to overcome the shortcomings of Related product in the prior art, the utility model proposes one kind charging reset circuit and electronics
Equipment, solves the problems, such as that small size electronic product can not realize reset function because that cannot set corresponding button.
The utility model provides a kind of charging reset circuit, including：Sequentially connected MCU (Microcontroller
Unit micro-control units), rectification circuit, delay circuit and reset circuit, wherein, the reset circuit is connected with the MCU；
The MCU exports square wave to rectification circuit progress rectification and switchs to DC voltage, controls described prolong successively by DC voltage
When circuit and reset circuit cut-off work normally the MCU；When the MCU is abnormal, the delay circuit charges
And turning on the reset circuit resets the MCU.
As further improvement of the utility model, the rectification circuit includes capacitance C3, C5, diode D1, D2, resistance
R2, R5 and triode Q1；Described capacitance C5 one end connects the MCU, and the other end of the capacitance C5 connects diode respectively
The connecting pin of the cathode of D1 and the anode of diode D2；The plus earth of the diode D2；The anode of the diode D1
The connecting pin of resistance R2 and capacitance C3 is connected respectively；Another connecting pin end ground connection of the capacitance C3；The resistance R2's is another
One connecting pin connects the connecting pin of the base stage of resistance R5 and triode Q1, the emitter ground connection of the triode Q1, collection respectively
Electrode connects the delay circuit.
As further improvement of the utility model, the delay circuit includes charge power supply, resistance R1, R3, capacitance C1
And triode Q2, the charge power supply connect the connecting pin of the collector of resistance R1 and triode Q2, the resistance R1 respectively
The collector of another connecting pin difference connecting triode Q1, capacitance C1 and triode Q2 base stage connecting pin；The resistance
One end ground connection of R3, the other end of the resistance R3 connect the emitter of the triode Q2 and the reset circuit respectively,
The other end ground connection of the capacitance C1.
As further improvement of the utility model, the reset circuit includes resistance R4, capacitance C2, C4 and triode
One end of Q3, the capacitance C2 connect the emitter of the triode Q2 and the connecting pin of resistance R3 respectively, the capacitance C2's
The other end connects the base stage of the triode Q3；The emitter ground connection of the triode Q3, the collector point of the triode Q3
Not Lian Jie resistance R4, the connecting pin of capacitance C4 and MCU reseting port；The other end ground connection of the capacitance C4；The R4's
The other end connects external power supply and the power port of MCU respectively.
The utility model provides a kind of electronic equipment, it is characterised in that multiple including such as above-mentioned any one of them charging
Position circuit.
Compared with prior art, the utility model has the advantage that：
Charging reset circuit described in the utility model embodiment is applied when on the wearable device of no reset key, is not required to
Physical button of the prior art is wanted, whether currently need reset, MCU normal works can export if detecting automatically by its circuit
Control signal makes reset circuit not work, and when MCU is abnormal, reset circuit automatically resets the MCU, simple in structure, greatly
Cost is reduced, while is provided convenience for the miniaturization of product.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the theory structure schematic diagram of charging reset circuit described in the utility model；
Fig. 2 is the reference circuit schematic diagram of charging reset circuit described in the utility model.
Embodiment
It is real below in conjunction with the utility model in order to make those skilled in the art more fully understand the utility model
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, it is described
Embodiment is only the utility model part of the embodiment, instead of all the embodiments, the utility model is given in attached drawing
Preferred embodiment.The utility model can be realized in many different forms, however it is not limited to embodiment described herein,
On the contrary, the purpose for providing these embodiments is the understanding more thorough and comprehensive made to the disclosure of the utility model.It is based on
Embodiment in the utility model, those of ordinary skill in the art are obtained all without creative efforts
Other embodiment, shall fall within the protection scope of the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to the technology of the utility model
The normally understood implication of technical staff in domain is identical.It is simply in the term used in the description of the utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.The specification and right of the utility model will
Ask the term " comprising " and " having " in book and above-mentioned attached drawing and their any deformations, it is intended that cover non-exclusive bag
Contain.Such as contain process, method, system, product or the equipment of series of steps or unit and be not limited to the step listed
Rapid or unit, but the step of not listing or unit are alternatively further included, or alternatively further include for these processes, side
Other intrinsic steps of method, product or equipment or unit.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the utility model., which there is the phrase, in each position in the description to be each meant
Identical embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art are explicit
Ground and implicitly understand, embodiment described herein can be combined with other embodiments.
As shown in fig.1, the charging reset circuit includes sequentially connected MCU, rectification circuit, delay circuit and answers
Position circuit, wherein, the reset circuit is connected with the MCU, as shown in fig.2, resetting electricity for charging described in the utility model
The reference circuit schematic diagram on road；The MCU exports square wave to rectification circuit progress rectification and switchs to DC voltage, passes through direct current
Voltage controls delay circuit and the reset circuit cut-off to work normally the MCU successively；When the MCU is abnormal, institute
Stating delay circuit and being charged and turn on the reset circuit makes the MCU resets.
The rectification circuit includes capacitance C3, C5, diode D1, D2, resistance R2, R5 and triode Q1；The capacitance
C5 one end connects the MCU, and the other end of the capacitance C5 connects the cathode of diode D1 and the anode of diode D2 respectively
Connecting pin；The plus earth of the diode D2；The anode of the diode D1 connects resistance R2's and capacitance C3 respectively
Connecting pin；Another connecting pin end ground connection of the capacitance C3；Another connecting pin of the resistance R2 connect respectively resistance R5 and
The connecting pin of the base stage of triode Q1, the emitter ground connection of the triode Q1, collector connect the delay circuit.
The delay circuit includes charge power supply, resistance R1, R3, capacitance C1 and triode Q2, the charge power supply point
Not Lian Jie resistance R1 and triode Q2 collector connecting pin, another connecting pin difference connecting triode Q1 of the resistance R1
Collector, capacitance C1 and triode Q2 base stage connecting pin；One end ground connection of the resistance R3, the resistance R3's is another
End connects the emitter of the triode Q2 and the reset circuit, the other end ground connection of the capacitance C1 respectively.
The reset circuit includes resistance R4, and capacitance C2, C4 and triode Q3, one end of the capacitance C2 connect respectively
The emitter of the triode Q2 and the connecting pin of resistance R3, the other end of the capacitance C2 connect the base of the triode Q3
Pole；The emitter ground connection of the triode Q3, the collector of the triode Q3 connect resistance R4, the connecting pin of capacitance C4 respectively
And the reseting port of MCU；The other end ground connection of the capacitance C4；The other end of the R4 connect respectively external power supply and
The power port of MCU.
In the utility model embodiment, when wearable device is working properly, i.e., when described MCU is worked normally, the MCU
Square wave is exported to the rectification circuit, rectification switchs to DC voltage after diode D1, D2 and capacitance C3 successively, described
The triode Q1 conductings under the action of DC voltage, the collector of the triode Q1 drag down the base stage electricity of the triode Q2
Pressure is kept it turned off, and since the triode Q2 ends and then causes the triode Q3 to end, the reseting port of MCU is without change at this time
Change, the wearable device normal work.
When wearable device, which works, to crash, i.e., described MCU normally exception when, the MCU can not export square wave to described whole
Current circuit, the triode Q1 cut-offs, exporting+5V voltages by charge power supply at this time turns on the triode Q2, successively
By after the collector of Q2 to emitter and capacitance C2 by base stage of the voltage output to triode Q3, the triode Q3 conductings
The reseting port of the MCU is set to produce reset signal afterwards, the MCU is resetted, and the reset for completing the wearable device is restarted
Function.
Charging reset circuit described in the utility model embodiment is applied when on the wearable device of no reset key, is not required to
Physical button of the prior art is wanted, whether currently need reset, MCU normal works can export if detecting automatically by its circuit
Control signal makes reset circuit not work, and when MCU is abnormal, reset circuit automatically resets the MCU, simple in structure, greatly
Cost is reduced, while is provided convenience for the miniaturization of product.
On the basis of above-described embodiment, the utility model embodiment further includes a kind of electronic equipment, including above-mentioned implementation
Charging reset circuit described in example, and possess all technical characteristic and beneficial effect of the charging reset circuit, it please specifically join
Read the embodiment of above-mentioned charging reset circuit.
It these are only the embodiment of the utility model, be not intended to limit the scope of the claims of the utility model, although with reference to before
State embodiment the utility model is described in detail, for those skilled in the art comes, it still can be right
Technical solution described in foregoing each embodiment is modified, or carries out equivalent replace to which part technical characteristic
Change.Every equivalent structure done using the utility model specification and accompanying drawing content, it is related to be directly or indirectly used in other
Technical field, similarly within the utility model patent protection domain.
Claims (5)
1. one kind charging reset circuit, it is characterised in that including：Sequentially connected MCU, rectification circuit, delay circuit and multiple
Position circuit, wherein, the reset circuit is connected with the MCU；
The MCU exports square wave to rectification circuit progress rectification and switchs to DC voltage, controls institute successively by DC voltage
Stating delay circuit and reset circuit cut-off works normally the MCU；When the MCU is abnormal, the delay circuit carries out
Charge and turning on the reset circuit resets the MCU.
2. charging reset circuit according to claim 1, it is characterised in that：The rectification circuit includes capacitance C3, C5, and two
Pole pipe D1, D2, resistance R2, R5 and triode Q1；Described capacitance C5 one end connects the MCU, the other end of the capacitance C5
The connecting pin of the cathode of diode D1 and the anode of diode D2 is connected respectively；The plus earth of the diode D2；It is described
The anode of diode D1 connects the connecting pin of resistance R2 and capacitance C3 respectively；Another connecting pin ground connection of the capacitance C3；Institute
State resistance R2 another connecting pin connect respectively resistance R5 and triode Q1 base stage connecting pin, the hair of the triode Q1
Emitter grounding, collector connect the delay circuit.
3. charging reset circuit according to claim 2, it is characterised in that：The delay circuit includes charge power supply, electricity
R1, R3 are hindered, capacitance C1 and triode Q2, the charge power supply connect the connection of the collector of resistance R1 and triode Q2 respectively
The company of the base stage of the collector of connecting triode Q1, capacitance C1 and triode Q2 is distinguished in end, another connecting pin of the resistance R1
Connect end；One end ground connection of the resistance R3, the other end of the resistance R3 connect respectively the triode Q2 emitter and
The reset circuit, the other end ground connection of the capacitance C1.
4. charging reset circuit according to claim 3, it is characterised in that：The reset circuit includes resistance R4, capacitance
One end of C2, C4 and triode Q3, the capacitance C2 connect the connection of the emitter and resistance R3 of the triode Q2 respectively
End, the other end of the capacitance C2 connect the base stage of the triode Q3；The emitter ground connection of the triode Q3, three pole
The collector of pipe Q3 connects the reseting port of resistance R4, the connecting pin of capacitance C4 and MCU respectively；The other end of the capacitance C4
Ground connection；The other end of the R4 connects external power supply and the power port of MCU respectively.
5. a kind of electronic equipment, it is characterised in that including such as claim 1-4 any one of them charging reset circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721087112.0U CN207337336U (en) | 2017-08-29 | 2017-08-29 | One kind charging reset circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721087112.0U CN207337336U (en) | 2017-08-29 | 2017-08-29 | One kind charging reset circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207337336U true CN207337336U (en) | 2018-05-08 |
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ID=62370659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721087112.0U Active CN207337336U (en) | 2017-08-29 | 2017-08-29 | One kind charging reset circuit and electronic equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN207337336U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194317A (en) * | 2018-09-05 | 2019-01-11 | 潍坊歌尔电子有限公司 | A kind of reset circuit and wearable device |
| CN109426321A (en) * | 2017-08-29 | 2019-03-05 | 深圳市三诺数字科技有限公司 | A kind of charging reset circuit and electronic equipment |
| CN115001467A (en) * | 2022-08-08 | 2022-09-02 | 南昌龙旗信息技术有限公司 | Charging trigger reset control circuit for system abnormal crash |
-
2017
- 2017-08-29 CN CN201721087112.0U patent/CN207337336U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109426321A (en) * | 2017-08-29 | 2019-03-05 | 深圳市三诺数字科技有限公司 | A kind of charging reset circuit and electronic equipment |
| CN109194317A (en) * | 2018-09-05 | 2019-01-11 | 潍坊歌尔电子有限公司 | A kind of reset circuit and wearable device |
| CN115001467A (en) * | 2022-08-08 | 2022-09-02 | 南昌龙旗信息技术有限公司 | Charging trigger reset control circuit for system abnormal crash |
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