Programmable direct-current power supply with constant power and wide-range output

Abstract

The utility model relates to the technical field of direct-current power supplies, and discloses a constant-power wide-range output programmable direct-current power supply, which comprises a display screen, a control panel, an output interface, an external interface, a machine body and a handle, and is characterized in that the side surfaces of the display screen, the control panel, the output interface and the external interface are fixedly connected with the side surface of the machine body; the side face of the machine body is fixedly connected with the two ends of a handle, the side face of a display screen is fixedly connected with the side face of a microprocessor, the side face of a control panel is fixedly connected with the side face of an operation software module, and the bottom ends of the microprocessor, the operation software module, a power amplifier and an output circuit are fixedly connected with the bottom of an inner cavity of the machine body. The side face of the machine body is fixedly connected with the side face of the cooling fan, through the arrangement of the LCD display screen and the graphical upper computer operation software, a user can operate and monitor the working state of the power supply conveniently, and through the arrangement of the cooling fan, the machine body can be cooled effectively in time.

Description

Technical Field

[0001] The utility model relates to the technical field of direct current power supplies, and more specifically to a programmable direct current power supply with constant power and wide range output. Background Art

[0002] The programmable DC power supply with constant power and wide range output is a high-performance power supply device. It can automatically adjust the output voltage and current within the set range to achieve constant power output. This power supply has the advantages of wide range output, large current, low ripple noise, fast transient response, high resolution, high precision, etc. It is suitable for electronic research and development, power electronics laboratories, new energy, photovoltaic inverters and other fields. The realization of the programmable DC power supply with constant power and wide range output mainly depends on the coordinated work of core components such as the microprocessor, digital signal processor, power amplifier and so on inside the power supply. This power supply can change the output voltage and current by controlling the internal program to meet different needs. This power supply equipment has a wide range of uses. Its use can ensure the accuracy and repeatability of the test results. It is an indispensable and important equipment in many fields.

[0003] Insufficient existing technology: The use of programmable DC power supply requires certain electronic technology and programming skills. For people who are not familiar with electronic equipment and computer control, it is difficult to use and maintain this equipment. Secondly, the heat dissipation problem also needs to be improved. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a programmable DC power supply with constant power and wide range output to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a programmable DC power supply with constant power and wide range output, comprising a display screen, and also comprising: a control panel, an output interface, an external interface, a fuselage, and a handle, wherein the sides of the display screen, the control panel, the output interface, and the external interface are fixedly connected to the sides of the fuselage, and the sides of the fuselage are fixedly connected to the two ends of the handle, a control panel is provided on one side of the display screen, an external interface is provided on the other side of the display screen, an output interface is provided on the bottom end of the control panel, a side of the display screen is fixedly connected to the side of a microprocessor, a side of the control panel is fixedly connected to the side of an operating software module, one end of the output interface is fixedly connected to the side of a power amplifier and an output circuit, the bottom ends of the microprocessor, the operating software module, the power amplifier, and the output circuit are fixedly connected to the bottom of the inner cavity of the fuselage, a power module and a digital signal processor are provided inside the fuselage, a side of the fuselage is fixedly connected to the side of a cooling fan, and a side of the fuselage is fixedly connected to the side of a switch.

[0006] Furthermore, the display screen is an LCD display screen, and the operating software module adopts a graphical host computer operating software.

[0007] Furthermore, a side surface of the microprocessor is electrically connected to a side surface of the operating software module.

[0008] Furthermore, the control panel includes function keys, direction keys and a numeric keypad.

[0009] Furthermore, the output interface has three groups, each group includes a positive output terminal and a negative output terminal, and the output modes of the three groups of output channels include constant voltage, constant power supply and constant power output.

[0010] Furthermore, the side surfaces of the power amplifier and the output circuit are electrically connected to the side surfaces of the digital controller.

[0011] Furthermore, the external interface includes a USB interface, which can be connected to an external device.

[0012] Furthermore, there are electrical connections between the digital controller and the power module, between the power module and the digital signal processor, and between the digital signal processor and the microprocessor.

[0013] Furthermore, the handle can rotate 360 ​​degrees.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The utility model reduces the difficulty of user operation by providing an LCD display screen, graphical host computer operating software, a friendly user interface and powerful monitoring functions, which is conducive to convenient user operation and monitoring of the working status of the power supply.

[0016] 2. The utility model is provided with a heat dissipation fan, which is beneficial to good ventilation inside the fuselage and timely and effectively performs the heat dissipation work of the fuselage.

[0017] 3. The utility model has multiple working modes, including constant voltage, constant current, constant power and other working modes, which can meet the needs of different tests and applications.

[0018] 4. The utility model adopts high-speed DSP to perform PID calculation, has high-precision and low-ripple output, and can provide stable power supply.

[0019] 5. The utility model is provided with a programmable function, which allows the user to set and adjust the output parameters according to the needs. Through programming, the user can easily adjust the voltage, current, power and other parameters to meet different testing and application requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the operation panel of the utility model;

[0022] Figure 3 It is a schematic diagram of the internal structure of the fuselage of the utility model.

[0023] The accompanying drawings are marked as follows: 1. display screen; 101. microprocessor; 2. control panel; 201. operating software module; 202. function keys; 203. direction keys; 204. numeric keypad; 3. output interface; 301. power amplifier and output circuit; 302. digital controller; 4. external interface; 5. body; 501. power module; 502. cooling fan; 503. switch; 504. digital signal processor; 6. handle. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The present invention involves a programmable DC power supply with a constant power and wide range output, and is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Reference Figures 1 to 3 The utility model provides a programmable DC power supply with constant power and wide range output, including a display screen 1, a control panel 2, an output interface 3, an external interface 4, a body 5, and a handle 6. The sides of the display screen 1, the control panel 2, the output interface 3, and the external interface 4 are fixedly connected to the sides of the body 5, and the sides of the body 5 are fixedly connected to the two ends of the handle 6. The control panel 2 is arranged on one side of the display screen 1, and the external interface 4 is arranged on the other side of the display screen 1. The output interface 3 is arranged at the bottom of the control panel 2. The control panel 2 includes function keys 202, direction keys 203, and a numeric keyboard 204. The side of the display screen 1 is connected to the side of the microprocessor 101. The side of the control panel 2 is fixedly connected to the side of the operating software module 201, one end of the output interface 3 is fixedly connected to the side of the power amplifier and output circuit 301, the bottom ends of the microprocessor 101, the operating software module 201 and the power amplifier and output circuit 301 are fixedly connected to the bottom of the inner cavity of the fuselage 5, the interior of the fuselage 5 is provided with a power module 501 and a digital signal processor 504, the side of the fuselage 5 is fixedly connected to the side of the cooling fan 502, the cooling fan 502 can maintain good ventilation inside the fuselage 5, and promptly and effectively perform the heat dissipation work of the fuselage 5, and the side of the fuselage 5 is fixedly connected to the side of the switch 503.

[0026] The display screen 1 is an LCD display screen, and the operating software module 201 uses a graphical host computer operating software with a friendly user interface and powerful monitoring functions.

[0027] The side of the microprocessor 101 is electrically connected to the side of the operating software module 201. The operating software module 201 transmits the control signal input by the user to the microprocessor 101 through the electrical connection. The microprocessor 101 calculates the required output voltage and current according to these signals.

[0028] Among them, there are three groups of output interfaces 3, each group includes a positive output terminal and a negative output terminal, and the output modes of the three groups of output channels include constant voltage, constant power supply and constant power output. Different working modes can meet the needs of different tests and applications.

[0029] Among them, the side of the control panel 2 is electrically connected to the side of the digital controller 302, and the user can send instructions to the digital controller 302 through the control panel 2. There is an electrical connection between the digital controller 302 and the power module 501, the power module 501 and the digital signal processor 504, and the digital signal processor 504 and the microprocessor 101.

[0030] The external interface 4 includes a USB interface, which can be connected to an external device, and the device can be programmed and parameters adjusted through the external device.

[0031] The handle 6 can rotate 360 ​​degrees, and the user can conveniently adjust the position and angle of the device through the handle 6.

[0032] The working principle of the utility model is as follows: when using the device, the power supply is connected to the power module 501, and the switch 503 is turned on. The power module 501 is responsible for converting the input power into a stable DC voltage and current. The user inputs instructions by observing the display screen 1 and operating the control panel 2. The side of the control panel 2 is electrically connected to the side of the digital controller 302. The user can send instructions to the digital controller 302 through the control panel 2. The digital controller 302 is electrically connected to the power module 501, the power module 501 is electrically connected to the digital signal processor 504, and the digital signal processor 504 is electrically connected to the microprocessor 101. The operating software module 201 transmits the control signal input by the user to the microprocessor 101 through an electrical connection. The microprocessor 101 calculates the required output voltage and current according to these signals. The digital signal processor 504 is responsible for converting the signal calculated by the microprocessor 101 into an analog signal to control the power amplifier. The digital controller 302 is the core part of the programmable DC power supply. It is responsible for receiving the user's input and adjusting the output voltage and current according to the input instructions. The user can control the output voltage and current through the panel control, remote control or computer. The digital controller 302 sends instructions to the digital controller 302 by control and other means to specify the required output voltage and current values. The digital controller 302 converts the received instructions into control signals and adjusts the output voltage and current by controlling the working state of the power amplifier. The power amplifier is responsible for controlling the size of the output voltage and current. It will receive the control signal from the digital signal processor 504 and convert it into an analog signal to control the power output. The processed current is output to the powered device through the output circuit. The output modes of the constant power supply include constant voltage, constant current and constant power modes. Different modes can be automatically switched according to the actual needs of the load to maintain a stable output power. In the constant power mode, the output voltage and current are inversely proportional, that is, the output power remains unchanged. When the load resistance changes, the power supply automatically adjusts the ratio of the output voltage and current to keep the output power constant. The side of the fuselage 5 is fixedly connected to the side of the cooling fan 502. The cooling fan 502 can maintain good ventilation inside the fuselage 5 and perform heat dissipation work of the fuselage 5 in a timely and effective manner. The handle 6 can rotate 360 ​​degrees, and the user can conveniently adjust the position and angle of the device through the handle 6.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A programmable DC power supply with constant power and wide range output, comprising a display screen (1), characterized in that: Also includes: A control panel (2), an output interface (3), an external interface (4), a body (5), and a handle (6); the sides of the display screen (1), the control panel (2), the output interface (3), and the external interface (4) are fixedly connected to the sides of the body (5); the sides of the body (5) are fixedly connected to the two ends of the handle (6); the control panel (2) is provided on one side of the display screen (1); the external interface (4) is provided on the other side of the display screen (1); the output interface (3) is provided at the bottom end of the control panel (2); the side of the display screen (1) is fixedly connected to the side of the microprocessor (101); the control panel (2) is provided on the other side of the display screen (1); The side of the board (2) is fixedly connected to the side of the operating software module (201), one end of the output interface (3) is fixedly connected to the side of the power amplifier and output circuit (301), the bottom ends of the microprocessor (101), the operating software module (201) and the power amplifier and output circuit (301) are fixedly connected to the bottom of the inner cavity of the body (5), the body (5) is provided with a power module (501) and a digital signal processor (504), the side of the body (5) is fixedly connected to the side of the cooling fan (502), and the side of the body (5) is fixedly connected to the side of the switch (503).

2. A programmable DC power supply with constant power and wide range output according to claim 1, characterized in that: The display screen (1) is an LCD display screen, and the operating software module (201) uses graphical host computer operating software.

3. A programmable DC power supply with constant power and wide range output according to claim 1, characterized in that: The side surface of the microprocessor (101) is electrically connected to the side surface of the operating software module (201).

4. The programmable DC power supply with constant power and wide range output according to claim 1, characterized in that: The control panel (2) comprises function keys (202), direction keys (203) and a numeric keyboard (204).

5. The programmable DC power supply with constant power and wide range output according to claim 1, characterized in that: The output interface (3) has three groups, each group includes a positive output terminal and a negative output terminal, and the output modes of the three groups of output channels include constant voltage, constant power supply and constant power output.

6. The programmable DC power supply with constant power and wide range output according to claim 1, characterized in that: The side surface of the power amplifier and output circuit (301) is electrically connected to the side surface of the digital controller (302).

7. The programmable DC power supply with constant power and wide range output according to claim 1, characterized in that: The external interface (4) comprises a USB interface, which can be connected to an external device.

8. The programmable DC power supply with constant power and wide range output according to claim 6, characterized in that: The digital controller (302) and the power module (501), the power module (501) and the digital signal processor (504), and the digital signal processor (504) and the microprocessor (101) are all electrically connected.

9. The programmable DC power supply with constant power and wide range output according to claim 1, characterized in that: The handle (6) can rotate 360 ​​degrees.

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