CN210038588U - Controllable power supply based on single chip microcomputer design - Google Patents
Controllable power supply based on single chip microcomputer design Download PDFInfo
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- CN210038588U CN210038588U CN201920995691.1U CN201920995691U CN210038588U CN 210038588 U CN210038588 U CN 210038588U CN 201920995691 U CN201920995691 U CN 201920995691U CN 210038588 U CN210038588 U CN 210038588U
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Abstract
The utility model relates to a controllable power based on singlechip design, include: the system comprises a program-controlled power supply, a touch display screen and an MCU module; the MCU module includes: the device comprises an ADC acquisition module, a DAC output module, a TEMP test module and an RS485 interface; the programmable power supply is respectively connected with the ADC acquisition module, the DAC output module and the TEMP test module, and the RS485 interface is connected with the touch display screen and also can be connected with the communication interface. The utility model discloses built-in closed-loop control rectifies easily, and sets up and overflows, overheat protection, prevents to burn out the load to can come control power output with touch-control display screen or communication interface, the output precision is high, convenient operation, and the reliability is higher, circuit structure is simple.
Description
Technical Field
The utility model relates to an electricity field, more specifically say, relate to a controllable power based on singlechip design.
Background
In electronic equipment, the fault rate of a direct current stabilized power supply is the highest, the output voltage of the stabilized power supply can change along with the fluctuation of a power grid or the change of load current, if the power supply of the electronic equipment is unstable, a plurality of problems can be caused, modern electronic products have more and more powerful functions, and higher requirements on the reliability, the output precision and the stability of the power supply are met.
The existing solution has the following disadvantages:
1. the output precision is poor, and the requirement is difficult to meet;
2. the device does not have overcurrent and overheat protection in a certain range, and the load is easily burnt out due to overcurrent and overheat;
3. difficult to calibrate and inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves lies in how to export the precision height through adopting a controllable power based on singlechip design, and built-in closed-loop control rectifies easily, and sets up overcurrent, overheat protection, prevents to burn out the load to can control power output with the touch-sensitive screen, also can control with communication interface. Aiming at the defects of the prior art, a controllable power supply based on a single chip microcomputer design is provided.
The utility model provides a technical scheme that its technical problem adopted is: a controllable power supply designed based on a single chip microcomputer is constructed, the high resolution of a D/A converter and the automatic detection technology design of the single chip microcomputer are utilized, the output precision is high, in addition, the closed-loop control is built in, the correction is easy, the overcurrent and overheat protection is set, the burning-out of a load is prevented, an RS485 interface is arranged outside the programmable power supply, any output voltage or current can be set by using a display screen, the secondary development can also be performed, the interface communication and debugging instructions are provided, the applicability is stronger, the operation is convenient, the use is simple, and the reliability is higher.
A controllable power supply based on singlechip design in, a controllable power supply based on singlechip design, include: the system comprises a program-controlled power supply, a touch display screen and an MCU module;
the MCU module includes: the device comprises an ADC acquisition module, a DAC output module, a TEMP test module and an RS485 interface;
the programmable power supply is respectively connected with the ADC acquisition module, the DAC output module and the TEMP test module, and the RS485 interface is connected with the touch display screen.
The utility model discloses an among the controllable power based on singlechip design, the input voltage of programmable power supply is 24 ~ 42V's direct current voltage.
The utility model discloses an in the controllable power based on singlechip design, the RS485 interface can also be connected with communication interface for interface communication and debugging instruction.
The utility model discloses an in the controllable power based on singlechip design, but touch-control display screen is used for setting up programmable power supply's output current and voltage.
The utility model discloses an in the controllable power based on singlechip design, but the setting value of touch-control display screen with output current and voltage sends MCU.
The utility model discloses an among the controllable power based on singlechip design, MCU gives programmable power supply through DAC output module output DAC signal according to the setting value, and programmable power supply passes through DAC signal regulation output.
The utility model discloses an in the controllable power based on singlechip design, ADC collection module is used for gathering programmable power supply's output voltage and electric current.
In the controllable power supply designed based on the single chip microcomputer, the output voltage of the programmable power supply is 0-12V and is adjustable; the output current is 0-3A.
The utility model discloses an among the controllable power based on singlechip design, the output ripple of programme-controlled power is less than 10mv, and minimum fast response time of closing is 40 ns.
The utility model discloses an in the controllable power based on singlechip design, TEMP test module is used for monitoring the temperature of programme-controlled power.
According to the above scheme the utility model discloses, its beneficial effect lies in, the utility model provides a controllable power based on singlechip design, built-in closed-loop control rectifies easily, and sets up and overflows, overheat protection, prevents to burn out the load to can control power output with touch-control display screen or communication interface, output precision is high, convenient operation, and the reliability is higher, circuit structure is simple.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a block diagram of a circuit structure of the present invention with adjustable protection range.
In the figure, 1, an MCU module; 2. an ADC acquisition module; 3. a DAC output module; 4. a TEMP test module; 5. an RS485 interface; 6. a program-controlled power supply; 7. a touch-sensitive display screen; 8. a communication interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a controllable power supply based on a single chip microcomputer design includes: the system comprises a program-controlled power supply 6, a touch display screen 7 and an MCU module 1;
the MCU module 1 includes: the device comprises an ADC acquisition module 2, a DAC output module 3, a TEMP test module 4 and an RS485 interface 5;
the programmable power supply 6 is respectively connected with the ADC acquisition module 2, the DAC output module 3 and the TEMP test module 4, and the RS485 interface 5 is connected with the touch display screen 7.
Furthermore, the input voltage of the programmable power supply 6 is 24-42V DC voltage.
Furthermore, the RS485 interface 5 can also be connected with the communication interface 8, and can also be used for secondary development, for interface communication and debugging instructions.
Further, the touch-sensitive display screen 7 is used for setting the output current and voltage of the programmable power supply 6.
Furthermore, the touch display screen 7 is simple to operate and convenient to use, and required voltage and current parameters can be directly set on the touch screen.
Further, the touch-sensitive display 7 sends the set values of the output current and the voltage to the MCU.
Furthermore, the MCU outputs the DAC signal to the programmable power supply 6 through the DAC output module 3 according to the set value, and the programmable power supply 6 adjusts the output through the DAC signal.
Further, the ADC acquisition module 2 is configured to acquire the output voltage and current of the programmable power supply 6, and acquire the voltage and current parameters of the programmable power supply 6 in real time.
Furthermore, voltage and current are set through the touch screen, the MCU module 1 outputs DAC signals to the programmable power supply 6 through the DAC output module 3 according to the set value, the programmable power supply 6 adjusts output, and then the ADC acquisition module 2 acquires output voltage and current, so that closed-loop control is formed, the output precision is high, and the response is fast.
Furthermore, the output voltage of the programmable power supply 6 is 0-12V and is adjustable; the output current is 0-3A.
Further, the output ripple of the programmable power supply 6 is less than 10mv and the minimum fast-switching response time is 40 ns.
Furthermore, the TEMP test module 4 is used for monitoring the temperature of the programmable power supply 6 in real time, preventing the programmable power supply 6 from overheating, and transmitting data in real time to realize an overheating protection function.
Furthermore, 12-bit AD acquisition is carried out, voltage and current are monitored in real time, overcurrent and overheating protection can be set, and load burnout is prevented.
The utility model provides a controllable power based on singlechip design adopts simple circuit, easy operation, and convenient to use can directly set up voltage, the current parameter that needs on can the touch-control display screen to voltage output precision is high, and the response is fast, possesses overcurrent, overheat protection function, can also be used in doing the secondary development on some other equipment, and not only the reliability is higher, has still further improved the security performance.
Although the present invention has been described in connection with the above embodiments, the scope of the present invention is not limited thereto, and modifications, replacements, and the like to the above members are all within the scope of the claims of the present invention without departing from the concept of the present invention.
Claims (10)
1. The utility model provides a controllable power based on singlechip design which characterized in that includes: the system comprises a program-controlled power supply, a touch display screen and an MCU module;
the MCU module includes: the device comprises an ADC acquisition module, a DAC output module, a TEMP test module and an RS485 interface;
the programmable power supply is respectively connected with the ADC acquisition module, the DAC output module and the TEMP test module, and the RS485 interface is connected with the touch display screen.
2. The controllable power supply designed based on the single chip microcomputer according to claim 1, wherein the input voltage of the controllable power supply is a direct current voltage of 24-42V.
3. The controllable power supply designed based on the single chip microcomputer as claimed in claim 1, wherein the RS485 interface is further connectable to a communication interface for interface communication and instruction debugging.
4. The controllable power supply designed based on the single chip microcomputer according to claim 1, wherein the touch-controllable display screen is used for setting the output current and voltage of the programmable power supply.
5. The controllable power supply designed based on the single chip microcomputer according to claim 4, wherein the touch display screen sends set values of output current and voltage to the MCU.
6. The MCU of claim 5, wherein the MCU outputs a DAC signal to the programmable power supply via the DAC output module according to the setting value, and the programmable power supply adjusts the output via the DAC signal.
7. The controllable power supply designed based on the single chip microcomputer of claim 5 or 6, wherein the ADC acquisition module is used for acquiring the output voltage and current of the programmable power supply.
8. The controllable power supply designed based on the single chip microcomputer according to claim 7, wherein the output voltage of the controllable power supply is 0-12V and is adjustable; the output current is 0-3A.
9. The controllable power supply designed based on the single chip microcomputer as claimed in claim 7, wherein the output ripple of the programmable power supply is less than 10mv, and the minimum fast-switching response time is 40 ns.
10. The controllable power supply designed based on the single chip microcomputer of claim 1, wherein the TEMP test module is used for detecting the temperature of the controllable power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920995691.1U CN210038588U (en) | 2019-06-28 | 2019-06-28 | Controllable power supply based on single chip microcomputer design |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920995691.1U CN210038588U (en) | 2019-06-28 | 2019-06-28 | Controllable power supply based on single chip microcomputer design |
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| CN210038588U true CN210038588U (en) | 2020-02-07 |
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| CN201920995691.1U Active CN210038588U (en) | 2019-06-28 | 2019-06-28 | Controllable power supply based on single chip microcomputer design |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945276A (en) * | 2021-02-06 | 2021-06-11 | 南京工业职业技术大学 | Automatic power supply environment and functional performance testing device for subway vehicle electronic odometer |
| CN113009236A (en) * | 2020-10-16 | 2021-06-22 | 东莞市明信技术有限公司 | Micro-ohm resistance testing module based on single chip microcomputer design |
-
2019
- 2019-06-28 CN CN201920995691.1U patent/CN210038588U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009236A (en) * | 2020-10-16 | 2021-06-22 | 东莞市明信技术有限公司 | Micro-ohm resistance testing module based on single chip microcomputer design |
| CN112945276A (en) * | 2021-02-06 | 2021-06-11 | 南京工业职业技术大学 | Automatic power supply environment and functional performance testing device for subway vehicle electronic odometer |
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Address after: 518000 the first floor, second floor, third floor, fourth floor and fifth floor of 16 workshops in antuoshan high tech Industrial Park, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Mingxin testing equipment Co., Ltd Address before: Baoan District manhole Street Xinsha road Shenzhen city Guangdong province 518000 security supporting mountain High-tech Industrial Park 16 Patentee before: SHENZHEN MASON TEST EQUIPMENT Co.,Ltd. |