CN209462558U - A kind of power-off restoration device and earphone, speaker - Google Patents
A kind of power-off restoration device and earphone, speaker Download PDFInfo
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- CN209462558U CN209462558U CN201920177360.7U CN201920177360U CN209462558U CN 209462558 U CN209462558 U CN 209462558U CN 201920177360 U CN201920177360 U CN 201920177360U CN 209462558 U CN209462558 U CN 209462558U
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Abstract
The utility model belongs to electronic technology field, discloses a kind of power-off restoration device and earphone, speaker, including transient pulse generation module, reseting module and control module；Transient pulse generation module generates transient pulse according to the access of external power supply；Reseting module disconnects the DC power supply according to the transient pulse to generate reset signal；Control module is resetted according to the reset signal；Due to without being resetted by the reset terminal of the microprocessor in control module, it is resetted without by software, therefore avoid the problem of can not carrying out normal reset when being interfered and dysfunction occur, it realizes in electrification, power-off restoration individually is carried out to microprocessor and powers off influence to other circuits to avoid local circuit, also avoids tearing machine open and tears the amateur operation such as battery open the personal portable devices bring such as earphone is damaged.
Description
Technical field
The utility model belongs to electronic technology field more particularly to a kind of power-off restoration device and earphone, speaker.
Background technique
All types of microprocessors on the market generally have independent reset terminal at present, and traditional power-off restoration device uses
The reset terminal is resetted, and some can also realize reset function by resetting the execution of software accordingly.But work as microprocessor
It is interfered and dysfunction occurs, external reset signal and software reset's program are all unable to normal reset.
Therefore traditional power-off restoration device exist can not be carried out when being interfered and dysfunction occur normal reset lack
It falls into.
Utility model content
The utility model provides a kind of power-off restoration device and earphone, speaker, it is intended to solve traditional power-off restoration dress
Set existing the problem of can not carrying out normal reset when being interfered and dysfunction occur.
The utility model is realized in this way a kind of power-off restoration device, the power-off restoration device include:
The transient pulse generation module of transient pulse is generated for the access according to external power supply；
Connect with the transient pulse generation module, for according to the transient pulse disconnect the DC power supply with
Generate the reseting module of reset signal；
It is connect with the reseting module, the control module for being resetted according to the reset signal.
The power-off restoration device in one of the embodiments, further include:
It is connect with the transient pulse generation module, for being connected to the USB interface of the external power supply.
The reseting module includes: in one of the embodiments,
It is connect with the transient pulse generation module, for generating the control signal of control signal according to the transient pulse
Generation module；
Connect with the control signal generation module, for according to the control signal disconnection DC power supply with
Generate the switch module of reset signal.
The control signal generation module includes the first triode and first resistor in one of the embodiments,；
The base stage of first triode and the first end of the first resistor collectively form the control signal and generate mould
The input terminal of block, the output end of the extremely described control signal generation module of the transmitting of first triode, the one or three pole
The second end of the emitter of pipe and the first resistor is connected to power ground altogether.
The switch module includes the second triode and second resistance in one of the embodiments,；
The base stage of second triode and the first end of the second resistance collectively form the control of the switch module
Signal input part, the collector of second triode and the second end of the second resistance collectively form the switch module
Power input, the reset signal output end of the extremely described switch module of transmitting of second triode.
The transient pulse generation module includes first capacitor in one of the embodiments,；
The first end of the first capacitor is the external power input of the transient pulse generation module, first electricity
The first end of appearance is the transient pulse output end of the transient pulse generation module.
The control module includes microprocessor in one of the embodiments,；
The power end of the microprocessor is the reset signal input terminal of the control module.
The utility model embodiment also provides a kind of earphone, which is characterized in that the earphone includes as above-mentioned power-off is multiple
Position device.
The utility model embodiment also provides a kind of speaker, which is characterized in that the speaker includes as above-mentioned power-off is multiple
Position device.
The utility model embodiment is by including transient pulse generation module, reseting module and control module；Instantaneous arteries and veins
It rushes generation module and transient pulse is generated according to the access of external power supply；Reseting module disconnects the direct current according to the transient pulse
Power supply is to generate reset signal so that control module is resetted according to the reset signal；Due to without passing through control mould
The reset terminal of microprocessor in block is resetted, and is resetted without by software, therefore is avoided when the appearance that is interfered
It the problem of can not carrying out normal reset when dysfunction, realizes in electrification, individually microprocessor power off multiple
Position powers off influence to other circuits to avoid local circuit, also avoids tearing machine open and tears the amateur operation such as battery open to earphone etc.
The damage of people's portable device bring.
Detailed description of the invention
It is novel in order to illustrate more clearly of the technical application in the utility model embodiment, it below will be in embodiment description
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the one of the utility model
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is a kind of function structure chart of power-off restoration device provided by the embodiment of the utility model；
Fig. 2 is another function structure chart of power-off restoration device provided by the embodiment of the utility model；
Fig. 3 is a kind of function structure chart of power-off restoration device reseting module provided by the embodiment of the utility model；
Fig. 4 is the exemplary circuit structure chart of power-off restoration device provided by the embodiment of the utility model.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Fig. 1 shows the modular structure of power-off restoration device provided by the embodiment of the utility model, for ease of description, only
Part relevant to the utility model embodiment is shown, details are as follows:
Above-mentioned power-off restoration device includes transient pulse generation module 01, reseting module 02 and control module 03.
Transient pulse generation module 01 generates transient pulse according to the access of external power supply；Reseting module 02 and transient pulse
Generation module 01 connects, for disconnecting DC power supply according to transient pulse to generate reset signal；Control module 03 and multiple
Position module 02 connects, for being resetted according to reset signal.
As shown in Fig. 2, power-off restoration device further includes USB interface 04
USB interface 04 is connect with transient pulse generation module 01, for being connected to external power supply.
The power supply adaptor of 5V voltage is connected to by USB interface 04, in connection moment, transient pulse generation module 01 is generated
One of short duration high level pulse realizes the access of external power supply so that microprocessor is resetted.Since USB interface 04 is answered
Popular style improves the convenience of power-off restoration device application.
As shown in figure 3, reseting module 02 includes control signal generation module 021 and switch module 022.
Control signal generation module 021 is connect with transient pulse generation module 01, is controlled for being generated according to transient pulse
Signal；Switch module 022 with control signal generation module 021 connect, for according to control signal disconnection DC power supply with
Generate reset signal.
It is realized by control signal generation module 021 and switch module 022 and reset signal is generated according to transient pulse,
Circuit is simple and reliable.
Fig. 4 shows the exemplary circuit structure of power-off restoration device provided by the embodiment of the utility model, for the ease of saying
It is bright, part relevant to the utility model embodiment is illustrated only, details are as follows:
Controlling signal generation module 021 includes the first triode Q1 and first resistor R1.The base stage of first triode Q1 and
The first end of first resistor R1 collectively forms the input terminal of control signal generation module 021, and the transmitting of the first triode Q1 is extremely
The output end of signal generation module 021 is controlled, the emitter of the first triode Q1 and the second end of first resistor R1 are connected to electricity altogether
Source.
Switch module 022 includes the second triode Q2 and second resistance R2.The base stage and second resistance of second triode Q2
The first end of R2 collectively forms the control signal input of switch module 022, the collector and second resistance of the second triode Q2
The second end of R2 collectively forms the power input of switch module 022, the transmitting extremely switch module 022 of the second triode Q2
Reset signal output end.
Transient pulse generation module 01 includes first capacitor C1.The first end of first capacitor C1 is transient pulse generation module
01 external power input, the first end of first capacitor C1 are the transient pulse output end of transient pulse generation module 01
Control module 03 includes microprocessor U1.The power end of microprocessor U1 is that the reset signal of control module 03 inputs
End.
It is described further below in conjunction with working principle to shown in Fig. 4:
In the specific implementation process under normal circumstances, DC power supply VBAT+ passes through second resistance R2 conducting second
Triode Q2, DC power supply VBAT+ give microprocessor U1 normal power supply, and equipment operates normally.When microprocessor U1 is by different
Chang Yinsu interference failure, when occurring resetting the case where software can not execute, the power adaptation of 5V voltage is connected to by USB interface 04
Device, in connection moment, first capacitor C1 generates an of short duration high level pulse, the appearance in pulse duration and first capacitor C1
It is worth related, capacitance is bigger, and the pulse duration is longer.The first triode Q1 is opened in pulse, by the base stage of the second triode Q2
Voltage pull-down closes the second triode Q2, and the power supply of instantaneous trip microprocessor U1 is realized and resetted.
The utility model embodiment also provides a kind of earphone, and the earphone includes such as above-mentioned power-off restoration device.
The utility model embodiment also provides a kind of speaker, and the speaker includes such as above-mentioned power-off restoration device.
The utility model embodiment is by including transient pulse generation module, reseting module and control module；Instantaneous arteries and veins
It rushes generation module and transient pulse is generated according to the access of external power supply；Reseting module disconnects the direct current according to the transient pulse
To generate reset signal so that control module is resetted according to the reset signal, overcoming ought be interfered out power supply
The defect that normal reset can not be carried out when existing dysfunction, realizes in electrification, individually powers off to microprocessor
Reset the influence for avoiding local circuit from powering off to other circuits；It also avoids tearing open machine and tears the amateur operation such as battery open to earphone etc.
The damage of people's portable device bring.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of power-off restoration device, which is characterized in that the power-off restoration device includes:
The transient pulse generation module of transient pulse is generated for the access according to external power supply；
It connect with the transient pulse generation module, is resetted for disconnecting DC power supply according to the transient pulse with generating
The reseting module of signal；
It is connect with the reseting module, the control module for being resetted according to the reset signal.
2. power-off restoration device as described in claim 1, which is characterized in that the power-off restoration device further include:
It is connect with the transient pulse generation module, for being connected to the USB interface of the external power supply.
3. power-off restoration device as described in claim 1, which is characterized in that the reseting module includes:
It is connect with the transient pulse generation module, the control signal for generating control signal according to the transient pulse generates
Module；
It is connect with the control signal generation module, for disconnecting the DC power supply according to the control signal to generate
The switch module of reset signal.
4. power-off restoration device as claimed in claim 3, which is characterized in that the control signal generation module includes the one or three
Pole pipe and first resistor；
The base stage of first triode and the first end of the first resistor collectively form the control signal generation module
Input terminal, the output end of the extremely described control signal generation module of the transmitting of first triode, first triode
The second end of emitter and the first resistor is connected to power ground altogether.
5. power-off restoration device as claimed in claim 3, which is characterized in that the switch module includes the second triode and the
Two resistance；
The base stage of second triode and the first end of the second resistance collectively form the control signal of the switch module
Input terminal, the collector of second triode and the second end of the second resistance collectively form the power supply of the switch module
Input terminal, the reset signal output end of the extremely described switch module of transmitting of second triode.
6. power-off restoration device as described in claim 1, which is characterized in that the transient pulse generation module includes the first electricity
Hold；
The first end of the first capacitor is the external power input of the transient pulse generation module, the first capacitor
First end is the transient pulse output end of the transient pulse generation module.
7. power-off restoration device as described in claim 1, which is characterized in that the control module includes microprocessor；
The power end of the microprocessor is the reset signal input terminal of the control module.
8. a kind of earphone, which is characterized in that the earphone includes power-off restoration dress as claimed in any one of claims 1 to 7
It sets.
9. a kind of speaker, which is characterized in that the speaker includes power-off restoration dress as claimed in any one of claims 1 to 7
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920177360.7U CN209462558U (en) | 2019-01-30 | 2019-01-30 | A kind of power-off restoration device and earphone, speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920177360.7U CN209462558U (en) | 2019-01-30 | 2019-01-30 | A kind of power-off restoration device and earphone, speaker |
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| Publication Number | Publication Date |
|---|---|
| CN209462558U true CN209462558U (en) | 2019-10-01 |
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ID=68046457
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920177360.7U Active CN209462558U (en) | 2019-01-30 | 2019-01-30 | A kind of power-off restoration device and earphone, speaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113329286A (en) * | 2020-02-29 | 2021-08-31 | Oppo广东移动通信有限公司 | Wireless earphone and wireless earphone system |
-
2019
- 2019-01-30 CN CN201920177360.7U patent/CN209462558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113329286A (en) * | 2020-02-29 | 2021-08-31 | Oppo广东移动通信有限公司 | Wireless earphone and wireless earphone system |
| CN113329286B (en) * | 2020-02-29 | 2022-08-02 | Oppo广东移动通信有限公司 | Wireless earphone and wireless earphone system |
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