CN213240933U - Simple QC conversion board - Google Patents
Simple QC conversion board Download PDFInfo
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- CN213240933U CN213240933U CN202022404711.9U CN202022404711U CN213240933U CN 213240933 U CN213240933 U CN 213240933U CN 202022404711 U CN202022404711 U CN 202022404711U CN 213240933 U CN213240933 U CN 213240933U
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Abstract
The utility model discloses a simple QC conversion board, be provided with QC converting circuit, QC converting circuit includes output interface J1, output interface J1's positive output termination output interface J1's 2 pins, diode D1's positive pole divides two the tunnel, 3 pins of resistance R3 wiring stabiliser U1 are crossed all the way, another way connects the D + end of output interface J1 through resistance R1, linear stabiliser U1's 1 pin ground connection, a termination output interface J1's D-end of switch K1, another termination of switch K1 divides two the tunnel, a termination resistance K3 is crossed all the way and is connected the node between resistance R1 and diode D1's positive pole, another way connects the node between resistance R3 and linear stabiliser U1's 3 pin through resistance R2, a termination resistance R3 of boost button K2 and the node between linear stabiliser U1's 3 pins, another termination resistance R1 and the D57 + node between output interface J1, compared with the prior art, the technical scheme is simple, quick in development, low in cost and quick in batch production.
Description
Technical Field
The utility model relates to a simple QC conversion board, especially a simple QC conversion board.
Background
In order to intelligently control the output voltage, a technical scheme that the MCU controls the output voltage is often adopted, but the technical scheme is complicated, consumes a lot of development time and cost, and is slow in mass production.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a simple QC conversion plate with short development time, low cost and convenient batch production.
The utility model provides a technical scheme that its technical problem adopted is:
a simple QC conversion board is provided with a QC conversion circuit, the QC conversion circuit comprises an output interface J1, a linear voltage regulator U1, a boost key K2, a buck key K3, a resistor R1, a resistor R2, a resistor R3, a diode D1 and a switch K1, the model of the linear voltage regulator U1 is 7133, the positive output end of the output interface J1 is connected with the 2 pin of the linear voltage regulator U1, the negative electrode of the diode D1 is grounded, the positive electrode of the diode D1 is divided into two paths, one path is connected with the 3 pin of the linear voltage regulator U1 through the resistor R3, the other path is connected with the D + end of the output interface J1 through the resistor R1, the 1 pin of the linear voltage regulator U1 is grounded, one end of the switch K1 is connected with the D-end of the output interface J1, the other end of the switch K1 is divided into two paths, and the other path is connected with the node between the positive electrode 1 of the resistor R1 and the diode K3, the other path is connected with a node between the resistor R3 and the pin 3 of the linear voltage regulator U1 through the resistor R2, one end of the boosting key K2 is connected with a node between the resistor R3 and the pin 3 of the linear voltage regulator U1, and the other end of the boosting key K2 is connected with a node between the resistor R1 and the D + end of the output interface J1.
The utility model has the advantages that: the utility model discloses a switch K1 decides whether output voltage, the button K2 that steps up and the button K3 that steps down are used for controlling the voltage difference between output interface J1's D + end and the D-end, because resistance R1 and resistance R2 establish ties, through the resistance partial pressure, at every turn according to the button K3 that steps down, the voltage difference between output interface J1's D + end and the D-end reduces, at every turn according to the button K2 that steps up, output interface J1's D + end and the voltage difference between the D-end improve, compare with prior art, the technical scheme of the utility model is simpler, and the development is fast, and is with low costs, and batch production is fast.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
Referring to fig. 1, a simple QC conversion board is provided with a QC conversion circuit, the QC conversion circuit includes an output interface J1, a linear regulator U1, a boost key K2, a buck key K3, a resistor R1, a resistor R2, a resistor R3, a diode D1, and a switch K1, the model of the linear regulator U1 is 7133, the positive output terminal of the output interface J1 is connected to the 2 pin of the linear regulator U1, the negative terminal of the diode D1 is grounded, the positive terminal of the diode D1 is connected in two ways, one way is connected to the 3 pin of the linear regulator U1 through the resistor R3, the other way is connected to the D + terminal of the output interface J1 through the resistor R1, the 1 pin of the linear regulator U1 is grounded, one end of the switch K1 is connected to the D-terminal of the output interface J1, the other end of the switch K1 is connected in two ways, and one way is connected to the positive node 1 between the resistor R36 3 and the positive terminal of the diode R1, the other path is connected with a node between the resistor R3 and the pin 3 of the linear voltage regulator U1 through the resistor R2, one end of the boosting key K2 is connected with a node between the resistor R3 and the pin 3 of the linear voltage regulator U1, and the other end of the boosting key K2 is connected with a node between the resistor R1 and the D + end of the output interface J1.
The switch K1 decides whether to output voltage, the voltage boosting key K2 and the voltage reducing key K3 are used for controlling the voltage difference between the D + end and the D-end of the output interface J1, because the resistor R1 is connected with the resistor R2 in series, the voltage is divided through resistors, the voltage reducing key K3 is pressed once, the voltage difference between the D + end and the D-end of the output interface J1 is reduced (0.2V), the voltage boosting key K2 is pressed once, the voltage difference between the D + end and the D-end of the output interface J1 is improved (0.2V), compared with the prior art, the technical scheme is simpler, the development is fast, the cost is low, and the batch production speed is fast.
The above embodiments do not limit the scope of the present invention, and those skilled in the art can make equivalent modifications and variations without departing from the overall concept of the present invention.
Claims (1)
1. A simple QC conversion board is provided with a QC conversion circuit, and is characterized in that the QC conversion circuit comprises an output interface J1, a linear voltage stabilizer U1, a boosting key K2, a voltage reduction key K3, a resistor R1, a resistor R2, a resistor R3, a diode D1 and a switch K1, the model of the linear voltage stabilizer U1 is 7133, the anode output end of the output interface J1 is connected with the 2 pin of the linear voltage stabilizer U1, the cathode of the diode D1 is grounded, the anode of the diode D1 is divided into two paths, one path is connected with the 3 pin of the linear voltage stabilizer U1 through the resistor R3, the other path is connected with the D + end of the output interface J1 through the resistor R1, the 1 pin of the linear voltage stabilizer U1 is grounded, one end of the switch K1 is connected with the D-end of the output interface J1, the other end of the switch K1 is divided into two paths, and the other path is connected with the positive node 1 between the resistor R3 and the anode of the diode R1, the other path is connected with a node between the resistor R3 and the pin 3 of the linear voltage regulator U1 through the resistor R2, one end of the boosting key K2 is connected with a node between the resistor R3 and the pin 3 of the linear voltage regulator U1, and the other end of the boosting key K2 is connected with a node between the resistor R1 and the D + end of the output interface J1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022404711.9U CN213240933U (en) | 2020-10-26 | 2020-10-26 | Simple QC conversion board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022404711.9U CN213240933U (en) | 2020-10-26 | 2020-10-26 | Simple QC conversion board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213240933U true CN213240933U (en) | 2021-05-18 |
Family
ID=75880967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022404711.9U Active CN213240933U (en) | 2020-10-26 | 2020-10-26 | Simple QC conversion board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213240933U (en) |
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2020
- 2020-10-26 CN CN202022404711.9U patent/CN213240933U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A simple QC conversion board Effective date of registration: 20230927 Granted publication date: 20210518 Pledgee: Shanghai Pudong Development Bank Limited by Share Ltd. Zhongshan branch Pledgor: ZHONGSHAN BAOLIJIN ELECTRONIC Co.,Ltd. Registration number: Y2023980059564 |