CN207743728U - A kind of wireless adapter power supply circuit - Google Patents
A kind of wireless adapter power supply circuit Download PDFInfo
- Publication number
- CN207743728U CN207743728U CN201721856059.6U CN201721856059U CN207743728U CN 207743728 U CN207743728 U CN 207743728U CN 201721856059 U CN201721856059 U CN 201721856059U CN 207743728 U CN207743728 U CN 207743728U
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- power supply
- boost pressure
- controller
- supply circuit
- battery
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Abstract
The utility model discloses a kind of wireless adapter power supply circuit, which includes buck controller, boost pressure controller, super capacitor and wireless module；The input terminal of buck controller is connected with battery, and the output end of buck controller is connected to the input terminal of boost pressure controller, is also associated with to the super capacitor of reserve power between buck controller and boost pressure controller；The output end of boost pressure controller is connected to the power interface of wireless module.The utility model makees the buffer of battery using super capacitor, using two-stage power supply mode, ensures the power supply efficiency that system is improved while battery life.
Description
Technical field
The utility model belongs to radio transmission technical field, is related to a kind of power supply circuit and method, especially a kind of wireless
The power supply circuit of adapter.
Background technology
There are many circuit working methods of wireless power, for low power consuming devices using battery powered application scenario to electricity
The technology in pond is more demanding, and especially wireless telecommunications electric current when emitting data is larger, a common lithium thionyl chloride cell
Capacity and supply current be linear relationship；
Conventional wireless device uses a common lithium thionyl chloride cell for system power supply at this stage, and system can timing
It wakes up and starts gathered data, and by wireless communication transmission data, entire system power dissipation is dynamic change.Lithium-thionyl
The service life of acyl chlorides battery and output current have a larger relationship, when high current electric discharge can reduce the service life, lead to complete machine uses the longevity
Life is shorten to 1~2 year.It can ensure that battery is operated under the current status of restriction using the patent circuit, to improve entirety
The service life of equipment improves the efficiency of power supply.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of wireless adapter power supply electricity
The buffer of battery is made on road using super capacitor, using two-stage power supply mode, ensures to improve system while battery life
Power supply efficiency.
The purpose of this utility model is achieved through the following technical solutions：
The wireless adapter power supply circuit of the utility model, including buck controller, boost pressure controller, super capacitor and nothing
Wire module；The input terminal of the buck controller is connected with battery, and the output end of buck controller is connected to boost pressure controller
Input terminal is also associated between buck controller and boost pressure controller to the super capacitor of reserve power；The boosting control
The output end of device processed is connected to the power interface of wireless module.
Further, above-mentioned battery is single-unit ER34615 batteries.
Further, the peak point current of above-mentioned wireless module is 100mA.
Further, the overall power of above-mentioned power supply circuit is within 10 milliamperes.
Further, the input voltage of above-mentioned buck controller is 3.6V, output voltage 3.0V.
Further, the input voltage range of above-mentioned boost pressure controller is 1.8~5.5V, and boost pressure controller is wireless module
Supply voltage be 3.3V.
The utility model has the advantages that：
In the wireless adapter power supply circuit of the utility model, decompression switching controller is made to be operated in constant current mode, and
Super capacitor is devised between buck controller and boost pressure controller and does battery buffer, when wireless module is needed in high current work
When making work status, the utility model uses super capacitor auxiliary power supply, this design that can extend a lithium thionyl chloride cell
Working life, while improving the power-efficient of system, while increasing the working life of battery.
Description of the drawings
Fig. 1 is the system principle diagram of the utility model；
Fig. 2 is the performance comparison schematic diagram of a lithium thionyl chloride cell 3.6V.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1：The wireless adapter power supply circuit of the utility model, including buck controller A1, boost pressure controller B1,
Super capacitor C1 and wireless module D1.The input terminal of wherein buck controller A1 is connected with battery, the output of buck controller A1
End is connected to the input terminal of boost pressure controller B1, is also associated with to lay between buck controller A1 and boost pressure controller B1
The super capacitor C1 of electric energy；The output end of boost pressure controller B1 is connected to the power interface of wireless module D1.
In the most preferred embodiment of the utility model, battery is single-unit ER34615 batteries.The peak point current of wireless module D1
For 100mA.The overall power of power supply circuit is within 10 milliamperes.The input voltage of buck controller A1 is 3.6V, output voltage
For 3.0V.The input voltage range of boost pressure controller B1 is 1.8~5.5V, and boost pressure controller B1 is the power supply of wireless module D1
Voltage is 3.3V.
Based on the above wireless adapter power supply circuit, utility model works principle is as follows：
Battery is buck controller A1 power supplies, and on the one hand the buck controller A1 powers to boost pressure controller B1, another
Aspect charges to super capacitor C1；Wireless module D1 is powered by boost pressure controller B1；Super capacitor C1 carries out electric energy
Deposit, is controlled by boost pressure controller B1 and is powered by super capacitor C1 when there is high power requirements.
In conclusion the cell voltage of 3.6V is reduced to by the design of the utility model entirety by buck controller
3.0V, while charging for super capacitor.Wireless module power supply is controlled supply voltage in 3.3V by boost pressure controller, should
Boost module input range is 1.8~5.5V, can adapt to wide scope power supply boost conversion automatically.Promote super capacitor simultaneously
Power supply efficiency.
Fig. 2 is the performance comparison schematic diagram of a lithium thionyl chloride cell 3.6V, as can be seen from the figure：
The relationship of battery capacity and discharge current：
For the electric current of battery work in 100mA, the discharge time of battery is 10.5Ah.
For the operating current of battery in 10mA, the discharge time of battery is 16.5Ah.
Using this patent circuit, the emission current of complete machine is limited within 10mA, and the peak point current of battery is limited from 100mA
It is set to 10mA, battery capacity increases 6Ah.
System sent a data according to 1000 seconds, and sending time length is 3 seconds, then average current is：
(1mA* (1000-3) S+98.6mA*3S)/1000=1.2928mA
If using the battery of 1000mAh to system power supply, theoretical time is：
1000mAh/3.928=773.51 (h)=32.229 day
It is 16.5-10.5=6Ah to increase according to battery capacity, then uses the patent circuit, can increase the system power supply time
For：
32.229 its * 6Ah=193 days.
Claims (6)
1. a kind of wireless adapter power supply circuit, which is characterized in that including buck controller (A1), boost pressure controller (B1), surpass
Grade capacitance (C1) and wireless module (D1)；The input terminal of the buck controller (A1) is connected with battery, buck controller (A1)
Output end be connected to the input terminal of boost pressure controller (B1), also connect between buck controller (A1) and boost pressure controller (B1)
It is connected to the super capacitor (C1) to reserve power；The output end of the boost pressure controller (B1) is connected to wireless module (D1)
Power interface.
2. wireless adapter power supply circuit according to claim 1, which is characterized in that the battery is single-unit ER34615
Battery.
3. wireless adapter power supply circuit according to claim 1, which is characterized in that the peak value of the wireless module (D1)
Electric current is 100mA.
4. wireless adapter power supply circuit according to claim 1, which is characterized in that the overall power of the power supply circuit
Within 10 milliamperes.
5. wireless adapter power supply circuit according to claim 1, which is characterized in that the buck controller (A1) it is defeated
It is 3.6V, output voltage 3.0V to enter voltage.
6. wireless adapter power supply circuit according to claim 1, which is characterized in that the boost pressure controller (B1) it is defeated
It is 1.8~5.5V to enter voltage range, and boost pressure controller (B1) is that the supply voltage of wireless module (D1) is 3.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721856059.6U CN207743728U (en) | 2017-12-27 | 2017-12-27 | A kind of wireless adapter power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721856059.6U CN207743728U (en) | 2017-12-27 | 2017-12-27 | A kind of wireless adapter power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207743728U true CN207743728U (en) | 2018-08-17 |
Family
ID=63119973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721856059.6U Active CN207743728U (en) | 2017-12-27 | 2017-12-27 | A kind of wireless adapter power supply circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN207743728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919713A (en) * | 2017-12-27 | 2018-04-17 | 西安安森智能仪器股份有限公司 | A kind of wireless adapter power supply circuit and its method of supplying power to |
-
2017
- 2017-12-27 CN CN201721856059.6U patent/CN207743728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919713A (en) * | 2017-12-27 | 2018-04-17 | 西安安森智能仪器股份有限公司 | A kind of wireless adapter power supply circuit and its method of supplying power to |
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