CN207339648U - A kind of voltage conversion circuit for Internet of Things single-site data acquisition - Google Patents
A kind of voltage conversion circuit for Internet of Things single-site data acquisition Download PDFInfo
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- CN207339648U CN207339648U CN201721046704.8U CN201721046704U CN207339648U CN 207339648 U CN207339648 U CN 207339648U CN 201721046704 U CN201721046704 U CN 201721046704U CN 207339648 U CN207339648 U CN 207339648U
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Abstract
The utility model discloses a kind of voltage conversion circuit for Internet of Things single-site data acquisition to include：First circuit, including the first capacitance C1, one end of chip AOZ1282, the first capacitance C1 are connected with+5V the power cords of access and are connected with the VIN5 pins of chip AOZ1282, and the other end of the first capacitance C1 is grounded and is connected with the GND2 pins of chip AOZ1282；Second circuit includes the second capacitance C2, first resistor R1, second resistance R2, diode D1, inductance L1 and the 3rd capacitance C3, the CB ends of a chip termination AOZ1282 of second capacitance C2, the other end of second capacitance C2 is connected with one end of inductance L1 and is connected with the SW ends of chip AOZ1282, the other end of inductance L1 is connected with first resistor R1 and exports+4V voltages, the other end of first resistor R1 is connected with the FB ends of chip AOZ1282 and one end of second resistance R2, the other end ground connection of second resistance R2, output+4V voltage ends are connected with one end of the 3rd capacitance C3, the other end ground connection of 3rd capacitance C3.To solve the voltage conversion of Internet of Things single-site data acquisition.
Description
Technical field
It the utility model is related to voltage conversion circuit field, more particularly to a kind of voltage for Internet of Things single-site data acquisition
Conversion circuit.
Background technology
With the development of power line, power line carrier meter reading system also develops therewith, and the inside uses GPRS module, it is necessary to
DC/DC is carried out to voltage, the utility model discloses a kind of voltage conversion circuit for Internet of Things single-site data acquisition, to solve
Certainly GPRS needs the problem of voltage DC/DC.
The content of the invention
The utility model discloses a kind of voltage conversion circuit for Internet of Things single-site data acquisition, pass through AOZ1282 cores
Piece solves the problems, such as that the GPRS of Internet of Things single-site data acquisition needs DC/DC to change voltage.
The utility model is used for the voltage conversion circuit of Internet of Things single-site data acquisition, including：
First circuit, second circuit, first circuit include the first capacitance C1, chip AOZ1282, first capacitance
One end of C1 is connected with+5V the power cords of access and is connected with the VIN5 pins of chip AOZ1282, the first capacitance C1
The other end be grounded and be connected with the GND2 pins of chip AOZ1282；The second circuit includes the second capacitance C2, the first electricity
Hinder R1, second resistance R2, diode D1, inductance L1 and the 3rd capacitance C3, a chip termination AOZ1282 of the second capacitance C2
CB ends, the other end of the second capacitance C2 is connected with one end of inductance L1 and is connected with the SW ends of chip AOZ1282, inductance L1
The other end be connected with first resistor R1 and export+4V voltages, the other end of first resistor R1 and the FB ends of chip AOZ1282
And one end of second resistance R2 is connected, the other end of the second resistance R2 is grounded, output+4V voltage ends and the 3rd electricity
The one end for holding C3 is connected, the other end ground connection of the 3rd capacitance C3.
The beneficial effects of the utility model are the voltage in circuit can be changed by AOZ1282 chips, and
The voltage conversion circuit noise is small, influence is small, voltage conversion efficiency is high.
Brief description of the drawings
Fig. 1 is the circuit diagram that the utility model embodiment provides.
Fig. 2 is the circuit diagram chips AOZ1282 interface connection diagrams that the utility model embodiment provides.
Embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment
A kind of voltage conversion circuit for Internet of Things single-site data acquisition is present embodiments provided, including：
First circuit, second circuit, first circuit include the first capacitance C1, chip AOZ1282, first capacitance
One end of C1 is connected with+5V the power cords of access and is connected with the VIN5 pins of chip AOZ1282, the first capacitance C1
The other end be grounded and be connected with the GND2 pins of chip AOZ1282；The second circuit includes the second capacitance C2, the first electricity
Hinder R1, second resistance R2, diode D1, inductance L1 and the 3rd capacitance C3, a chip termination AOZ1282 of the second capacitance C2
CB ends, the other end of the second capacitance C2 is connected with one end of inductance L1 and is connected with the SW ends of chip AOZ1282, inductance L1
The other end be connected with first resistor R1 and export+4V voltages, the other end of first resistor R1 and the FB ends of chip AOZ1282
And one end of second resistance R2 is connected, the other end of the second resistance R2 is grounded, output+4V voltage ends and the 3rd electricity
The one end for holding C3 is connected, the other end ground connection of the 3rd capacitance C3.
It is input+5V supply voltages in the present embodiment, by the input terminal VIN of AOZ1282 chips, input voltage and then warp
Cross inductance L1 and first resistor R1, output+4V supply voltages.Complete voltage and be converted to+4V voltages from+5V.
The present embodiment carries out circuit voltage conversion by using AOZ1282 circuits, and circuit is small, and ripple and noise are small,
Output current bigger, there is short-circuit protection function.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (1)
- A kind of 1. voltage conversion circuit for Internet of Things single-site data acquisition, it is characterised in that including：First circuit, second circuit, first circuit include the first capacitance C1, chip AOZ1282, the first capacitance C1's One end is connected with+5V the power cords of access and is connected with the VIN5 pins of chip AOZ1282, and the first capacitance C1's is another End is grounded and is connected with the GND2 pins of chip AOZ1282；The second circuit include the second capacitance C2, first resistor R1, Second resistance R2, diode D1, inductance L1 and the 3rd capacitance C3, the CB of a chip termination AOZ1282 of the second capacitance C2 End, the other end of the second capacitance C2 are connected with one end of inductance L1 and are connected with the SW ends of chip AOZ1282, and inductance L1's is another Hold and be connected and export+4V voltages, the other end of first resistor R1 and the FB ends of chip AOZ1282 and second with first resistor R1 One end of resistance R2 is connected, the other end of second resistance R2 ground connection, and the one of output+4V voltage ends and the 3rd capacitance C3 End is connected, the other end ground connection of the 3rd capacitance C3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721046704.8U CN207339648U (en) | 2017-08-21 | 2017-08-21 | A kind of voltage conversion circuit for Internet of Things single-site data acquisition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721046704.8U CN207339648U (en) | 2017-08-21 | 2017-08-21 | A kind of voltage conversion circuit for Internet of Things single-site data acquisition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207339648U true CN207339648U (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721046704.8U Active CN207339648U (en) | 2017-08-21 | 2017-08-21 | A kind of voltage conversion circuit for Internet of Things single-site data acquisition |
Country Status (1)
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| CN (1) | CN207339648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019223646A1 (en) * | 2018-05-21 | 2019-11-28 | 浙江正泰电器股份有限公司 | Frequency converter |
-
2017
- 2017-08-21 CN CN201721046704.8U patent/CN207339648U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019223646A1 (en) * | 2018-05-21 | 2019-11-28 | 浙江正泰电器股份有限公司 | Frequency converter |
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