CN208316364U - A kind of battery power-supplying circuit - Google Patents
A kind of battery power-supplying circuit Download PDFInfo
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- CN208316364U CN208316364U CN201820979509.9U CN201820979509U CN208316364U CN 208316364 U CN208316364 U CN 208316364U CN 201820979509 U CN201820979509 U CN 201820979509U CN 208316364 U CN208316364 U CN 208316364U
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Abstract
The utility model discloses a kind of battery power-supplying circuits, include battery；Single-chip microcontroller；Common cathode diode；Boot-strap circuit, which is provided with startup switch, and the input side of boot-strap circuit is electrically connected with the battery；Shutdown circuit which is provided with shutdown switch, and the input side of shutdown circuit is electrically connected with the battery, and the outlet side of shutdown circuit and the off signal input terminal of single-chip microcontroller are electrically connected；First switch tube, the input terminal of first switch tube is electrically connected with the battery, the controlled end of first switch tube is electrically connected with the outlet side of the switching on and shutting down signal output end of single-chip microcontroller and boot-strap circuit respectively by common cathode diode, and the output end of first switch tube and the energization input of single-chip microcontroller and off signal input terminal are electrically connected.The level change of the controlled end of startup switch or switch control first switch tube of shutting down and make first switch tube on or off, be connected or disconnected to control battery with single-chip microcontroller, battery is fully disconnected with single-chip microcontroller when shutdown connect, meet demand.
Description
Technical field
The utility model relates to a kind of battery power-supplying circuits.
Background technique
Most electrification pool equipments both domestic and external at present, there is no complete isolation battery and power consumption one end in the power-offstate
Power supply, so cause the professional standard of current notebook, mobile phone etc. to be not more than 5MAH, this shape in the shutdown state
State has the battery-powered time of equipment and service life different degrees of influence, places unused set especially for long-time
There are extreme influence in standby battery over-discharge and service life.For this reason it would be desirable to which electric current that equipment can be shut down further decreases, that is, to keep away
Exempting from the control devices such as the battery of equipment and the single-chip microcontroller of power consumption when shutdown, there is also electric connections, to greatly prolong the power supply of battery
Time and battery life.
Utility model content
The technical problem to be solved by the utility model is to provide it is a kind of facilitate it is easy to operate and shut down when equipment electricity
The battery power-supplying circuit of the cut-off connection of the control devices such as the single-chip microcontroller of pond and power consumption.
In order to solve the above-mentioned technical problem, the utility model discloses following technical solutions.A kind of battery power supply control electricity
Road includes: a battery, for providing power supply；One single-chip microcontroller；One common cathode diode；One boot-strap circuit which is provided with one and open
Machine switch, the input side of the boot-strap circuit and the battery are electrically connected；One shutdown circuit which is provided with shutdown switch,
The input side of the shutdown circuit and the battery are electrically connected, the shutdown of the outlet side of the shutdown circuit and the single-chip microcontroller
Signal input part is electrically connected；One first switch tube, the input terminal of the first switch tube and the battery are electrically connected, described
The controlled end of first switch tube by the common cathode diode respectively with the switching on and shutting down signal output end of the single-chip microcontroller and institute
The outlet side for stating boot-strap circuit is electrically connected, the energization input and pass of the output end of the first switch tube and the single-chip microcontroller
Machine signal input part is electrically connected.
Its further technical solution are as follows: the boot-strap circuit further includes having a second switch, a first resistor and one
The controlled end of two resistance, the second switch is electrically connected by the output end of the first resistor and the battery, described
The controlled end of second switch is also grounded by the startup switch, and the input terminal of the second switch passes through second electricity
Resistance and the output end of the battery are electrically connected, and the input terminal of the second switch is also positive with the one of the common cathode diode
Pole is electrically connected, the output end ground connection of the second switch.
Its further technical solution are as follows: the shutdown circuit further includes having a third switching tube, the third switching tube
Controlled end is electrically connected by the shutdown switch with the output end of the battery, the input terminal of the third switching tube with it is described
The off signal input terminal of single-chip microcontroller is electrically connected, the output end ground connection of the third switching tube.
Its further technical solution are as follows: the first switch tube is a NMOS tube.
Its further technical solution are as follows: the second switch is a NMOS tube.
Its further technical solution are as follows: the third switching tube is a NMOS tube.
Its further technical solution are as follows: the startup switch and shutdown switch be switch open in usual.
Its further technical solution are as follows: the output end of the battery is also connected with one first DC-DC power source chip.
Its further technical solution are as follows: the output end of the first switch tube is also connected with one second DC-DC power source chip.
The advantageous effects of the utility model are: the battery power-supplying circuit includes a battery, a single-chip microcontroller, one
Common cathode diode, a boot-strap circuit, a shutdown circuit and a first switch tube, boot-strap circuit are equipped with a startup switch, close
Electromechanical road is equipped with a shutdown switch, and when booting, the outlet side that startup switch controls boot-strap circuit exports high level, common cathode two
Pole pipe exports the controlled end of high level to first switch tube, first switch tube conducting, and battery is single-chip microcontroller power supply, single-chip microcontroller work
And its switching on and shutting down signal output end output high level is controlled so that first switch tube constant conduction；When shutdown, switch control of shutting down
The outlet side of shutdown circuit drags down the level of the off signal input terminal of single-chip microcontroller, and single-chip microcontroller obtains off signal and control it opening
Off signal output end exports low level, and common cathode diode exports controlled end of the low level to first switch tube, first switch
Pipe cut-off, battery disconnect the power supply of single-chip microcontroller, and the on-off state of the circuit passes through a startup switch and a shutdown switch difference
Control, it is simple to operate, and battery and the cutting of the single-chip microcontroller of power consumption connect after shutdown, the power consumption of the circuit is well below row
Industry standard, meets industry requirement.
Detailed description of the invention
Fig. 1 is the circuit connection diagram of one embodiment of the application.
Specific embodiment
It is further below with reference to technical solution of the schematic diagram to the application in order to more fully understand the technology contents of the application
It introduces and illustrates, but not limited to this.
As shown in Figure 1, in this application, which includes a battery, a single-chip microcontroller U1, a common cathode
Pole diode D1, a boot-strap circuit 1, a shutdown circuit 2 and a first switch tube Q1, wherein battery is for providing power supply, common cathode
Pole diode D1 includes two anodes and a common cathode, and boot-strap circuit 1 is equipped with a startup switch K1, the input side of boot-strap circuit 1
It is electrically connected with the battery；Shutdown circuit 2 is equipped with a shutdown switch K2, and the input side of shutdown circuit 2 is electrically connected with the battery, closes
The outlet side on electromechanical road 2 and the off signal input terminal of single-chip microcontroller U1 are electrically connected；The input terminal and battery of first switch tube Q1
It is electrically connected, the controlled end of first switch tube Q1 is exported with the switching on and shutting down signal of single-chip microcontroller U1 respectively by common cathode diode D1
The outlet side of end and boot-strap circuit 1 is electrically connected, the output end of first switch tube Q1 and the energization input of single-chip microcontroller U1 and pass
Machine signal input part is electrically connected.
When work, which passes through startup switch K1 or shutdown switch K2 control input first switch
The level of the controlled end of pipe Q1 changes and makes first switch tube Q1 on or off, to control battery and single-chip microcontroller U1 company
It connects or disconnects.Specifically, when booting, the outlet side that startup switch K1 controls boot-strap circuit 1 exports high level, common cathode two
Pole pipe D1 exports the controlled end of high level to first switch tube Q1, first switch tube Q1 conducting, and battery is single-chip microcontroller U1 power supply, and
Single-chip microcontroller U1 controls its switching on and shutting down signal output end output high level so that first switch tube Q1 constant conduction；When shutdown, shutdown
The outlet side of switch K2 control shutdown circuit 2 drags down the level of the off signal input terminal of single-chip microcontroller U1, and single-chip microcontroller U1, which is obtained, to close
Machine signal simultaneously controls its switching on and shutting down signal output end output low level, and common cathode diode D1 exports low level to first switch tube
The controlled end of Q1, first switch tube Q1 cut-off, battery disconnect the power supply of single-chip microcontroller U1.The on-off state of the circuit is opened by one
The shutdown of machine switch K1 and one switch K2 is controlled respectively, simple and convenient, and battery and the single-chip microcontroller U1 of power consumption cutting connect after shutdown,
The power consumption of the circuit is well below professional standard.
In the present embodiment, as shown in Figure 1, battery is not shown in the figure for connecting battery power supply in the port Vin.Single-chip microcontroller
The energization input of U1 corresponds to the 8th pin of single-chip microcontroller U1, and the off signal input terminal of single-chip microcontroller U1 corresponds to the 1st of single-chip microcontroller U1 the
The switching on and shutting down signal output end of pin, single-chip microcontroller U1 corresponds to the 7th pin of single-chip microcontroller U1.
In addition, startup switch K1 and shutdown switch K2 generally use switch open in usual and realize, switching on and shutting down need to grow when operating
By startup switch K1 or shutdown switch K2 make startup switch K1 or shutdown switch K2 place circuit communication, device power-up or
Unclamping after shutdown can be realized booting or shutdown, easy to operate.
In the present embodiment, as shown in Figure 1, boot-strap circuit 1 further includes have a second switch Q2, a first resistor R1 and
The controlled end of one second resistance R2, second switch Q2 are electrically connected by the output end of first resistor R1 and battery, and second opens
The controlled end for closing pipe Q2 also passes through startup switch K1 and is grounded, and the input terminal of second switch Q2 passes through second resistance R2 and battery
Output end is electrically connected, and the input terminal of second switch Q2 is also electrically connected with an anode of common cathode diode D1, and second opens
Close the output end ground connection of pipe Q2.
When booting, startup switch K1, the controlled end ground connection of second switch Q2 are pressed, second switch Q2 is in cut-off shape
State, battery directly pass through second resistance R2 and connect with an anode of common cathode diode D1, an anode of common cathode diode D1
In high level state, thus, the common cathode of common cathode diode D1 exports high level, at this point, first switch tube Q1's is controlled
End is in high level state, first switch tube Q1 conducting, and battery is powered to single-chip microcontroller U1, and single-chip microcontroller U1 works on power and controls it
Switching on and shutting down signal output end persistently exports high level, i.e. another anode of common cathode diode D1 is continuously in high level state,
The common cathode of common cathode diode D1 persistently exports high level, the controlled end of first switch tube Q1 be continuously in high level state and
Conducting, even if unclamping startup switch K1 at this time, second switch Q2 conducting, the level of the input terminal of second switch Q2 is drawn
It is low, but since single-chip microcontroller U1 work makes its switching on and shutting down signal output end persistently export high level, in this way, common cathode diode D1
Common cathode persistently exports high level, and first switch tube Q1 is continuously on state, and battery is single-chip microcontroller U1 power supply always.
In the present embodiment, as shown in Figure 1, shutdown circuit 2, which further includes, a third switching tube Q3, third switching tube Q3's
Controlled end is electrically connected by the output end of shutdown switch K2 and battery, the input terminal of third switching tube Q3 and the pass of single-chip microcontroller U1
Machine signal input part is electrically connected, the output end ground connection of third switching tube Q3.
When shutdown, shutdown switch K2, third switching tube Q3 conducting is pressed, the level of the input terminal of third switching tube Q3 is drawn
Low, i.e., the off signal input end of single-chip microcontroller U1 obtains off signal in low level state, single-chip microcontroller U1 and controls its switch
Machine signal output end exports low level, and the common cathode of common cathode diode D1 exports low level, and first switch tube Q1 is in cut-off
State, battery disconnect the power supply of single-chip microcontroller U1.At this point, the battery in circuit is only that boot-strap circuit 1 and shutdown circuit 2 are powered, and
Only include second switch Q2, first resistor R1 and second resistance R2 in boot-strap circuit 1, is only opened including third in shutdown circuit 2
Pipe Q3 is closed, second switch Q2, first resistor R1, the power consumption of second resistance R2 and third switching tube Q3 are very low, probably exist
1MAH or so, thus, the service life of battery will not be caused boot-strap circuit 1 and shutdown circuit 2 are connect with battery for a long time more
It is big to influence.
In the present embodiment, as shown in Figure 1, first switch tube Q1 is realized using a NMOS tube, which draws for the First Five-Year Plan
The NMOS tube of foot allows high current to pass through, and is suitable for connecting energization between battery and single-chip microcontroller U1.
In the present embodiment, as shown in Figure 1, second switch Q2 and third switching tube Q3 are all made of NMOS tube realization,
NMOS tube has the characteristic of high level conducting, and the mesh of booting or shutdown is realized by the characteristic controling circuit that its high level is connected
, it is simple and convenient.
In addition, in the present embodiment, as shown in Figure 1, the output end of battery is also connected with one first DC-DC power source chip U2's
Input terminal, the output end connection boot-strap circuit 1 of the first DC-DC power source chip U2 and the power input port of shutdown circuit 2；First
The output end of switching tube Q1 is also connected with the input terminal of one second DC-DC power source chip U3, the output of the second DC-DC power source chip U3
The energization input and off signal input terminal of end connection single-chip microcontroller U1.Wherein, the first DC-DC power source chip U2 and the 2nd DC-
DC power supply chip U3, which is mainly used for working for circuit, provides stable power supply, meanwhile, the power consumption of the first DC-DC power source chip U2
Also very low, when shutdown, much influences will not be caused on the service life of battery it connect work with battery, can ignored not
Meter.
In the embodiment of the utility model, which includes a battery, a single-chip microcontroller U1, a common cathode
Diode D1, a boot-strap circuit 1, a shutdown circuit 2 and a first switch tube Q1, boot-strap circuit 1 are equipped with a startup switch K1,
Shutdown circuit 2 is equipped with a shutdown switch K2, and when booting, startup switch K1 controls the outlet side output high level of boot-strap circuit 1,
First switch tube Q1 is connected in common cathode diode D1 output high level, and battery is single-chip microcontroller U1 power supply, and single-chip microcontroller U1 works simultaneously
Its switching on and shutting down signal output end output high level is controlled so that first switch tube Q1 constant conduction；When shutdown, shutdown switch K2 control
The outlet side of shutdown circuit 2 processed drags down the level of the off signal input terminal of single-chip microcontroller U1, and single-chip microcontroller U1 obtains off signal simultaneously
Its switching on and shutting down signal output end output low level is controlled, common cathode diode D1 output low level ends first switch tube Q1,
Battery disconnects the power supply of single-chip microcontroller U1, and the on-off state of the circuit is controlled respectively by the shutdown of a startup switch K1 and one switch K2
System, it is simple and convenient, and battery and the single-chip microcontroller U1 of power consumption cutting connect after shutdown, the power consumption of the circuit is well below industry mark
Standard meets industry requirement.
It is that above-mentioned preferred embodiment should be regarded as application scheme embodiment for example, all with application scheme thunder
Same, approximate or technology deduction, replacement, improvement for making based on this etc., are regarded as the protection scope of this patent.
Claims (9)
1. a kind of battery power-supplying circuit, which is characterized in that include:
One battery, for providing power supply；
One single-chip microcontroller；
One common cathode diode；
One boot-strap circuit, which is provided with a startup switch, and the input side of the boot-strap circuit and the battery are electrically connected；
One shutdown circuit which is provided with shutdown switch, and the input side of the shutdown circuit and the battery are electrically connected, described
The off signal input terminal of the outlet side of shutdown circuit and the single-chip microcontroller is electrically connected；
One first switch tube, the input terminal of the first switch tube and the battery are electrically connected, the first switch tube by
It is defeated with the switching on and shutting down signal output end of the single-chip microcontroller and the boot-strap circuit respectively by the common cathode diode to control end
Side is electrically connected out, the energization input and off signal input terminal electricity of the output end of the first switch tube and the single-chip microcontroller
Property connection.
2. battery power-supplying circuit according to claim 1, which is characterized in that the boot-strap circuit further includes having one
Two switching tubes, a first resistor and a second resistance, the controlled end of the second switch by the first resistor with it is described
The output end of battery is electrically connected, and the controlled end of the second switch is also grounded by the startup switch, and described second opens
The input terminal for closing pipe is electrically connected by the output end of the second resistance and the battery, the input terminal of the second switch
It is also electrically connected with an anode of the common cathode diode, the output end ground connection of the second switch.
3. battery power-supplying circuit according to claim 1, which is characterized in that the shutdown circuit further includes having one
The controlled end of three switching tubes, the third switching tube is electrically connected by the output end of the shutdown switch and the battery, institute
The off signal input terminal of the input terminal and the single-chip microcontroller of stating third switching tube is electrically connected, the output of the third switching tube
End ground connection.
4. battery power-supplying circuit according to claim 1, which is characterized in that the first switch tube is a NMOS
Pipe.
5. battery power-supplying circuit according to claim 2, which is characterized in that the second switch is a NMOS
Pipe.
6. battery power-supplying circuit according to claim 3, which is characterized in that the third switching tube is a NMOS
Pipe.
7. battery power-supplying circuit according to claim 1, which is characterized in that the startup switch and shutdown switch are equal
For switch open in usual.
8. battery power-supplying circuit according to claim 1, which is characterized in that the output end of the battery is also connected with
One first DC-DC power source chip.
9. battery power-supplying circuit according to claim 1, which is characterized in that the output end of the first switch tube is also
It is connected with one second DC-DC power source chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820979509.9U CN208316364U (en) | 2018-06-25 | 2018-06-25 | A kind of battery power-supplying circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820979509.9U CN208316364U (en) | 2018-06-25 | 2018-06-25 | A kind of battery power-supplying circuit |
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| Publication Number | Publication Date |
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| CN208316364U true CN208316364U (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820979509.9U Active CN208316364U (en) | 2018-06-25 | 2018-06-25 | A kind of battery power-supplying circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865775A (en) * | 2021-01-07 | 2021-05-28 | 中国电子科技集团公司第四十三研究所 | Remote control startup and shutdown circuit |
-
2018
- 2018-06-25 CN CN201820979509.9U patent/CN208316364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865775A (en) * | 2021-01-07 | 2021-05-28 | 中国电子科技集团公司第四十三研究所 | Remote control startup and shutdown circuit |
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