CN109426321A - A kind of charging reset circuit and electronic equipment - Google Patents
A kind of charging reset circuit and electronic equipment Download PDFInfo
- Publication number
- CN109426321A CN109426321A CN201710753574.XA CN201710753574A CN109426321A CN 109426321 A CN109426321 A CN 109426321A CN 201710753574 A CN201710753574 A CN 201710753574A CN 109426321 A CN109426321 A CN 109426321A
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- China
- Prior art keywords
- mcu
- triode
- capacitor
- reset circuit
- resistance
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/24—Resetting means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/0721—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment within a central processing unit [CPU]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0793—Remedial or corrective actions
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of charging reset circuit and electronic equipments, are related to wearable device technical field, which includes: sequentially connected MCU, rectification circuit, delay circuit and reset circuit, wherein the reset circuit is connect with the MCU；MCU output square wave to the rectification circuit carries out rectification and switchs to DC voltage, and the delay circuit and reset circuit cut-off are successively controlled by DC voltage works normally the MCU；When the MCU exception, the delay circuit is charged and the reset circuit, which is connected, resets the MCU.The embodiment of the present invention is applied when on the wearable device of no reset key, physical button in the prior art is not needed, it is detected by its circuit and currently whether is needed to be reset automatically, MCU normal work, which can export control signal, makes reset circuit not work, when MCU exception, reset circuit automatically resets the MCU, and structure is simple, cost is greatly reduced, while being provided convenience for the miniaturization of product.
Description
Technical field
The present invention relates to wearable device technical field more particularly to a kind of charging reset circuits and electronic equipment.
Background technique
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 key hand-reset, this more than ten years, science and technology is evolving, and many element circuits are integrated, minimize, so that
For Current electronic product size to miniaturization, the mode for increasing key without space realizes reset.
In realizing process of the present invention, at least there are the following problems in the prior art for inventor's discovery: in wearing for miniaturization
It wears in equipment because corresponding key cannot be arranged, cannot achieve reset function.
Summary of the invention
In order to overcome the shortcomings of Related product in the prior art, the present invention proposes that a kind of charging reset circuit and electronics are set
It is standby, solve the problems, such as that small size electronic product cannot achieve reset function because corresponding key cannot be arranged.
The present invention provides a kind of charging reset circuits, comprising: sequentially connected MCU (Microcontroller Unit
Micro-control unit), rectification circuit, delay circuit and reset circuit, wherein the reset circuit is connect with the MCU；It is described
MCU output square wave to the rectification circuit carries out rectification and switchs to DC voltage, and the delay electricity is successively controlled by DC voltage
Road and reset circuit cut-off work normally the MCU；When the MCU exception, the delay circuit is charged and is led
Leading to the reset circuit resets the MCU.
As a further improvement of the present invention, the rectification circuit includes capacitor C3, C5, diode D1, D2, resistance R2,
R5 and triode Q1；The one end the capacitor C5 connects the MCU, and the other end of the capacitor C5 is separately connected diode D1's
The connecting pin of the cathode of anode and diode D2；The plus earth of the diode D2；The cathode of the diode D1 is distinguished
Connect the connecting pin of resistance R2 and capacitor C3；Another connecting pin end of the capacitor C3 is grounded；Another company of the resistance R2
Connect the connecting pin that end is separately connected the base stage of resistance R5 and triode Q1, the emitter ground connection of the triode Q1, collector
Connect the delay circuit.
As a further improvement of the present invention, the delay circuit includes charge power supply, resistance R1, R3, capacitor C1 and
Triode Q2, the charge power supply are separately connected the connecting pin of the collector of resistance R1 and triode Q2, and the resistance R1's is another
One connecting pin is separately connected the connecting pin of the base stage of the collector of triode Q1, capacitor C1 and triode Q2；The resistance R3's
One end ground connection, the other end of the resistance R3 is separately connected the emitter and the reset circuit of the triode Q2, described
The other end of capacitor C1 is grounded.
As a further improvement of the present invention, the reset circuit includes resistance R4, capacitor C2, C4 and triode Q3,
One end of the capacitor C2 is separately connected the emitter of the triode Q2 and the connecting pin of resistance R3, and the capacitor C2's is another
End connects the base stage of the triode Q3；The emitter of the triode Q3 is grounded, and the collector of the triode Q3 connects respectively
The reseting port of connecting resistance R4, the connecting pin of capacitor C4 and MCU；The other end of the capacitor C4 is grounded；The R4's is another
End is separately connected external power supply and the power port of MCU.
The present invention provides a kind of electronic equipment, which is characterized in that resets electricity including charging as described in any one of the above embodiments
Road.
Compared with prior art, the present invention has the following advantages:
Charging reset circuit described in the embodiment of the present invention is applied when on the wearable device of no reset key, is not needed existing
There is the physical button in technology, detected by its circuit and currently whether needed to be reset automatically, MCU normal work can export control
Signal makes reset circuit not work, and when MCU exception, reset circuit automatically resets the MCU, and structure is simple, can be greatly reduced
Cost, while providing convenience for the miniaturization of product.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the theory structure schematic diagram of charging reset circuit of the present invention；
Fig. 2 is the reference circuit schematic diagram of charging reset circuit of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is only
A part of the embodiment of the present invention gives presently preferred embodiments of the present invention instead of all the embodiments in attached drawing.The present invention can
To realize in many different forms, however it is not limited to embodiment described herein, on the contrary, provide the mesh of these embodiments
Be to make the disclosure of the present invention more thorough and comprehensive.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.In description and claims of this specification and above-mentioned attached drawing
Term " includes " and " having " and their any deformations, it is intended that cover and non-exclusive include.Such as contain a system
The process, method, system, product or equipment of column step or unit are not limited to listed step or unit, but optional
Ground further includes the steps that not listing or unit, or optionally further comprising intrinsic for these process, methods, product or equipment
Other step or units.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
Containing at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly 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 connect with the MCU, as shown in fig.2, for charging reset circuit of the present invention
Reference circuit schematic diagram；MCU output square wave to the rectification circuit carries out rectification and switchs to DC voltage, passes through DC voltage
Successively controlling the delay circuit and reset circuit cut-off works normally the MCU；It is described to prolong when the MCU exception
When circuit charged and the reset circuit, which is connected, resets the MCU.
The rectification circuit includes capacitor C3, C5, diode D1, D2, resistance R2, R5 and triode Q1；The capacitor
The one end C5 connects the MCU, and the other end of the capacitor C5 is separately connected the anode of diode D1 and the cathode of diode D2
Connecting pin；The plus earth of the diode D2；The cathode of the diode D1 is separately connected resistance R2's and capacitor C3
Connecting pin；Another connecting pin end of the capacitor C3 is grounded；Another connecting pin of the resistance R2 be separately connected 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, and capacitor C1 and triode Q2, the charge power supply are divided
Not Lian Jie resistance R1 and triode Q2 collector connecting pin, another connecting pin of the resistance R1 is separately connected triode Q1
Collector, capacitor C1 and triode Q2 base stage connecting pin；One end of the resistance R3 is grounded, and the resistance R3's is another
End is separately connected the emitter and the reset circuit of the triode Q2, the other end ground connection of the capacitor C1.
The reset circuit includes resistance R4, and capacitor C2, C4 and triode Q3, one end of the capacitor C2 are separately connected
The emitter of the triode Q2 and the connecting pin of resistance R3, the other end of the capacitor C2 connect the base of the triode Q3
Pole；The emitter of the triode Q3 is grounded, and the collector of the triode Q3 is separately connected the connecting pin of resistance R4, capacitor C4
And the reseting port of MCU；The other end of the capacitor C4 is grounded；The other end of the R4 be separately connected external power supply and
The power port of MCU.
In embodiments of the present invention, when wearable device is working properly, i.e. when the MCU is worked normally, the MCU output
Square wave is to the rectification circuit, and successively rectification switchs to DC voltage after diode D1, D2 and capacitor C3, in the direct current
The triode Q1 conducting, the base voltage that the collector of the triode Q1 drags down the triode Q2 make under the action of voltage
It ends, and since the triode Q2 ends and then the triode Q3 is caused to end, the reseting port of MCU is unchanged at this time,
The wearable device works normally.
When wearable device, which works, to crash, i.e., when the described MCU is normally abnormal, the MCU can not export square wave to described whole
Current circuit, the triode Q1 cut-off, is connected the triode Q2 by charge power supply output+5V voltage at this time, successively
By after the collector to emitter and capacitor C2 of Q2 by voltage output to the base stage of triode Q3, the triode Q3 conducting
The reseting port of the MCU is set to generate reset signal afterwards, the MCU is resetted, and the reset for completing the wearable device is restarted
Function.
Charging reset circuit described in the embodiment of the present invention is applied when on the wearable device of no reset key, is not needed existing
There is the physical button in technology, detected by its circuit and currently whether needed to be reset automatically, MCU normal work can export control
Signal makes reset circuit not work, and when MCU exception, reset circuit automatically resets the MCU, and structure is simple, can be greatly reduced
Cost, while providing convenience for the miniaturization of product.
On the basis of the above embodiments, the embodiment of the invention also includes a kind of electronic equipment, including above-described embodiment institute
The charging reset circuit stated, and have all technical features and beneficial effect of the charging reset circuit, referring specifically to upper
State the embodiment of charging reset circuit.
In above-described embodiment provided by the present invention, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the module, only
Only a kind of logical function partition, there may be another division manner in actual implementation, for example, multiple module or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.
The module as illustrated by the separation member may or may not be physically separated, aobvious as module
The component shown may or may not be physical module, it can and it is in one place, or may be distributed over multiple
In network unit.Some or all of the modules therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
The above is only the embodiment of the present invention, are not intended to limit the scope of the patents of the invention, although with reference to the foregoing embodiments
Invention is explained in detail, still can be to aforementioned each specific reality for coming for those skilled in the art
It applies technical solution documented by mode to modify, or equivalence replacement is carried out to part of technical characteristic.It is all to utilize this
The equivalent structure that description of the invention and accompanying drawing content are done directly or indirectly is used in other related technical areas, similarly
Within the invention patent protection scope.
Claims (5)
1. a kind of charging reset circuit characterized by comprising sequentially connected MCU, rectification circuit, delay circuit and multiple
Position circuit, wherein the reset circuit is connect with the MCU；
MCU output square wave to the rectification circuit carries out rectification and switchs to DC voltage, and institute is successively controlled by DC voltage
Stating delay circuit and reset circuit cut-off works normally the MCU；When the MCU exception, the delay circuit is carried out
It charges and the reset circuit, which is connected, resets the MCU.
2. charging reset circuit according to claim 1, it is characterised in that: the rectification circuit includes capacitor C3, C5, and two
Pole pipe D1, D2, resistance R2, R5 and triode Q1；The one end the capacitor C5 connects the MCU, the other end of the capacitor C5
It is separately connected the connecting pin of the anode of diode D1 and the cathode of diode D2；The plus earth of the diode D2；It is described
The cathode of diode D1 is separately connected the connecting pin of resistance R2 and capacitor C3；Another connecting pin end of the capacitor C3 is grounded；
Another connecting pin of the resistance R2 is separately connected the connecting pin of the base stage of resistance R5 and triode Q1, the triode Q1's
Emitter ground connection, 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, capacitor C1 and triode Q2, the charge power supply are separately connected the connection of the collector of resistance R1 and triode Q2
End, another connecting pin of the resistance R1 is separately connected the company of the base stage of the collector of triode Q1, capacitor C1 and triode Q2
Connect end；One end of the resistance R3 is grounded, the other end of the resistance R3 be separately connected the triode Q2 emitter and
The reset circuit, the other end ground connection of the capacitor C1.
4. charging reset circuit according to claim 3, it is characterised in that: the reset circuit includes resistance R4, capacitor
C2, C4 and triode Q3, one end of the capacitor C2 are separately connected the connection of the emitter and resistance R3 of the triode Q2
End, the other end of the capacitor C2 connect the base stage of the triode Q3；The emitter of the triode Q3 is grounded, three pole
The collector of pipe Q3 is separately connected the reseting port of resistance R4, the connecting pin of capacitor C4 and MCU；The other end of the capacitor C4
Ground connection；The other end of the R4 is separately connected external power supply and the power port of MCU.
5. a kind of electronic equipment, which is characterized in that including charging reset circuit according to any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753574.XA CN109426321A (en) | 2017-08-29 | 2017-08-29 | A kind of charging reset circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753574.XA CN109426321A (en) | 2017-08-29 | 2017-08-29 | A kind of charging reset circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109426321A true CN109426321A (en) | 2019-03-05 |
Family
ID=65501960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710753574.XA Pending CN109426321A (en) | 2017-08-29 | 2017-08-29 | A kind of charging reset circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109426321A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114597982A (en) * | 2020-12-04 | 2022-06-07 | 南昌逸勤科技有限公司 | Charging circuit, terminal device and charging system |
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| US20090268493A1 (en) * | 2008-04-28 | 2009-10-29 | Hon Hai Precision Industry Co., Ltd. | Power-on reset circuit and electronic device using the same |
| CN104300950A (en) * | 2014-09-23 | 2015-01-21 | 青岛歌尔声学科技有限公司 | Automatic triggering starting circuit integrating reset function and HMD equipment |
| CN104539274A (en) * | 2014-12-31 | 2015-04-22 | 广东志高空调有限公司 | Reset circuit and WiFi communication system |
| CN106951336A (en) * | 2017-03-24 | 2017-07-14 | 北京经纬恒润科技有限公司 | A kind of MCU repositioning method, apparatus and system |
| CN106972843A (en) * | 2017-03-28 | 2017-07-21 | 浙江大学 | Possess the electronic instrument control signal output circuit and implementation method of defencive function |
| CN207337336U (en) * | 2017-08-29 | 2018-05-08 | 深圳市三诺数字科技有限公司 | One kind charging reset circuit and electronic equipment |
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2017
- 2017-08-29 CN CN201710753574.XA patent/CN109426321A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334746A (en) * | 2007-06-25 | 2008-12-31 | 株式会社日立产机*** | Multi-component system |
| US20090268493A1 (en) * | 2008-04-28 | 2009-10-29 | Hon Hai Precision Industry Co., Ltd. | Power-on reset circuit and electronic device using the same |
| CN104300950A (en) * | 2014-09-23 | 2015-01-21 | 青岛歌尔声学科技有限公司 | Automatic triggering starting circuit integrating reset function and HMD equipment |
| CN104539274A (en) * | 2014-12-31 | 2015-04-22 | 广东志高空调有限公司 | Reset circuit and WiFi communication system |
| CN106951336A (en) * | 2017-03-24 | 2017-07-14 | 北京经纬恒润科技有限公司 | A kind of MCU repositioning method, apparatus and system |
| CN106972843A (en) * | 2017-03-28 | 2017-07-21 | 浙江大学 | Possess the electronic instrument control signal output circuit and implementation method of defencive function |
| CN207337336U (en) * | 2017-08-29 | 2018-05-08 | 深圳市三诺数字科技有限公司 | One kind charging reset circuit and electronic equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114597982A (en) * | 2020-12-04 | 2022-06-07 | 南昌逸勤科技有限公司 | Charging circuit, terminal device and charging system |
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