CN213367637U - Multifunctional numerical control direct current adjustable power supply with multiple interfaces - Google Patents
Multifunctional numerical control direct current adjustable power supply with multiple interfaces Download PDFInfo
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- CN213367637U CN213367637U CN202022243077.5U CN202022243077U CN213367637U CN 213367637 U CN213367637 U CN 213367637U CN 202022243077 U CN202022243077 U CN 202022243077U CN 213367637 U CN213367637 U CN 213367637U
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Abstract
The utility model discloses a multi-functional numerical control direct current adjustable power supply with many interfaces is applied to power technology and instrument and meter technical field, include: the device comprises an MCU control module, a color display module, a serial communication module, a voltage conversion module, a power management module, a power input interface module, a PD decoy module, a half-bridge driving module, a BUCK synchronous arrangement topology module, a power output interface module and an ADC sampling circuit module. The utility model not only can provide a stable power supply for the electronic equipment, display the voltage, current and power equivalence of the electric equipment in real time, but also has constant voltage and constant current and various software and hardware protection; the auxiliary electric equipment development can also be connected with a computer and controlled by upper computer software; this equipment of both can real time control in the host computer, can also observe this equipment output voltage electric current wave form, derive data to more know the consumer condition, adopt the metal casing design, outward appearance simple structure is small and exquisite, portable.
Description
Technical Field
The technical field of power supply technology and instruments and meters, in particular to a multifunctional numerical control direct-current power supply with multiple interfaces.
Background
Various digital products are continuously popularized in the market at present, the supply voltage required by equipment is various, people need an adjustable power supply capable of randomly adjusting the voltage for supporting a power supply with strong compatibility, but most of the power supplies are adjusted through adjustable resistors, the required voltage value cannot be accurately and quickly adjusted, the size is large, and the display is single.
Therefore, how to provide an adjustable power supply, under the condition of ensuring small volume, the adjustable power supply can meet the requirements of quick and accurate adjustment, has wide adjustable range, also meets safe, reliable and multifunctional display, meets the basic requirements of an experiencer, is the problem which needs to be solved at present, and is the problem which needs to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a multi-functional numerical control direct current adjustable power with many interfaces.
In order to solve the problem, the utility model adopts the following technical scheme:
a multifunctional numerical control direct current adjustable power supply with multiple interfaces comprises:
an MCU control module;
the color display module is connected with the first connecting port of the MCU control module;
the serial port communication module is connected with a second connecting port of the MCU control module;
the first connection port of the voltage conversion module is connected with the fourth connection port of the MCU control module;
the first connection port of the power management module is connected with the fifth connection port of the MCU control module, the second connection port of the power management module is connected with the first connection port of the voltage conversion module, and the third connection port of the power management module is connected with the fourth connection port of the ADC sampling circuit module;
the first connecting port of the power input interface module is connected with the second connecting port of the voltage conversion module;
the first connecting port of the PD trapping module is connected with the second connecting port of the power input interface module, and the second connecting port of the PD trapping module is connected with the third connecting port of the voltage conversion module;
the first connecting port of the ADC sampling circuit module is connected with the third connecting port of the power input interface module, the second connecting port of the ADC sampling circuit module is connected with the second connecting port of the power output interface module, and the third connecting port of the ADC sampling circuit module is connected with the sixth connecting port of the MCU control module;
a half-bridge driving module, a first connection port of which is connected with a first output port of the voltage conversion module, and a second connection port of which is connected with a third connection port of the power management module;
a first connection port of the BUCK synchronous arrangement topology module is connected with a third connection port of the power input interface module, and a second connection port of the BUCK synchronous arrangement topology module is connected with a third connection port of the half-bridge drive module;
the device also comprises a power output interface module, wherein a first connecting port of the power output interface module is connected with a third connecting port of the BUCK synchronous finishing topology module.
Preferably, the MCU control module includes an ADC sampling processing unit, an SPI driving unit, and a PWM control unit.
Preferably, the power input interface module includes: the power supply comprises a first power supply input interface unit, a second power supply input interface unit and a third power supply input interface unit.
Preferably, the power output interface module includes: a first power output interface unit.
Preferably, the method further comprises the following steps: and the intelligent temperature control module is connected with the third connecting port of the MCU control module.
Preferably, the first power input interface unit adopts a Type-C female socket, the second power input interface unit adopts a DC005 socket, and the third power input interface unit adopts a 4mm banana head input socket.
Preferably, the color display module adopts a true color TFT-LCD screen, is driven by the MCU control module and can display in a diversified manner.
Preferably, serial port communication is achieved, online API upgrading firmware is achieved through computer end upper computer software and the multifunctional numerical control direct current power supply through the serial port communication, the power supply is controlled, and the use of an experiencer is facilitated.
Preferably, the ADC sampling circuit module accesses the ADC sampling processing unit in the MCU control circuit module through the ADC sampling circuit to process the input voltage, the output current, and the temperature, thereby obtaining the data to be collected.
Preferably, the power management module outputs voltage, and the output current is accessed to the power management module through the ADC sampling circuit, and is internally processed to generate a PWM waveform and transmit the PWM waveform to the half-bridge driving module, so as to drive the BUCK synchronous arrangement topology module to generate controllable voltage, thereby forming a closed loop.
Preferably, intelligence temperature control module, including the control by temperature change fan, when the temperature rise to a certain extent, the control by temperature change fan will start, guarantees the good operation of long-term of power.
Preferably, the MCU control module further comprises a software mechanism, wherein the software mechanism comprises an overvoltage protection, an overcurrent protection, an overtemperature protection, an overpower protection, and the like.
The utility model discloses the beneficial effect who realizes:
the equipment can not only provide a stable power supply for electronic equipment and display the voltage, current, power equivalence of the electric equipment in real time, but also has constant voltage and constant current and various software and hardware protection; the auxiliary electric equipment development can also be connected with a computer and controlled by upper computer software; this equipment of both can real time control in the host computer, can also observe this equipment output voltage electric current wave form, derive data to more know the consumer condition, adopt the metal casing design, outward appearance simple structure is small and exquisite, portable.
Drawings
FIG. 1 is a block diagram of the overall structure of the present invention;
FIG. 2 is a block diagram of the MCU control module of the present invention;
FIG. 3 is a block diagram of the power input interface module of the present invention;
fig. 4 is a block diagram of the power output interface module of the present invention;
FIG. 5 is a schematic diagram of a specific physical structure of embodiment 1 of the present invention
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached figure 1, the utility model discloses a multi-functional numerical control direct current adjustable power with many interfaces, include:
an MCU control module;
the color display module is connected with the first connecting port of the MCU control module;
the serial communication module is connected with a second connecting port of the MCU control module;
the first connecting port of the voltage conversion module is connected with the fourth connecting port of the MCU control module;
the first connection port of the power management module is connected with the fifth connection port of the MCU control module, and the second connection port of the power management module is connected with the first connection port of the voltage conversion module;
the first connecting port of the power input interface module is connected with the second connecting port of the voltage conversion module;
the first connecting port of the PD trapping module is connected with the second connecting port of the power input interface module, and the second connecting port of the PD trapping module is connected with the third connecting port of the voltage conversion module;
a half-bridge drive module, wherein a first connection port of the half-bridge drive module is connected with a first output port of the voltage conversion module, and a second connection port of the half-bridge drive module is connected with a third connection port of the power management module;
the first connecting port of the ADC sampling circuit module is connected with the third connecting port of the power input interface module, the second connecting port of the ADC sampling circuit module is connected with the second connecting port of the power output interface module, and the third connecting port of the ADC sampling circuit module is connected with the sixth connecting port of the MCU control module;
a first connection port of the BUCK synchronous arrangement topology module is connected with a third connection port of the power input interface module, and a second connection port of the BUCK synchronous arrangement topology module is connected with a third connection port of the half-bridge drive module;
the first connection port of the power output interface module is connected with the third connection port of the BUCK synchronous finishing topology module;
and the intelligent temperature control module is connected with the third connecting port of the MCU control module.
In one embodiment, as shown in fig. 2, the MCU control module includes an ADC sampling processing unit, an SPI driving unit, and a PWM control unit.
In one embodiment, as shown in fig. 3, the power input interface module includes: the power supply comprises a first power supply input interface unit, a second power supply input interface unit and a third power supply input interface unit.
In one embodiment, as shown in fig. 4, the power output interface module includes: a first power output interface unit.
In a specific embodiment, the first power input interface unit adopts a Type-C female socket, the second power input interface unit adopts a DC005 socket, and the third power input interface unit adopts a 4mm banana head input socket.
In one embodiment, the color display module adopts a true color TFT-LCD screen, is driven by the MCU control module and can display in a diversified manner.
In one specific embodiment, serial port communication is adopted, and the computer-side upper computer software and the multifunctional numerical control direct-current power supply realize online API (application program interface) upgrading firmware through the serial port communication, so that the power supply is controlled, and the use of an experiencer is facilitated.
In one embodiment, the intelligent temperature control module comprises a temperature control fan, and when the temperature rises to a certain degree, the temperature control fan is started to ensure long-term good operation of the power supply.
In another embodiment, the MCU control module further comprises software mechanisms including overvoltage protection, overcurrent protection, over-temperature protection, over-power protection, and the like.
Example 1
With reference to fig. 5, a multi-functional digital control dc adjustable power supply with multiple interfaces is disclosed, which comprises: the display panel comprises a shell front panel (101), a full-color TFT-LCD display panel (102), a control panel (103), a first metal shell (104), a second metal shell (105), a multi-interface main circuit PCB (106) and a shell rear panel (107); a full-color TFT-LCD display panel (102) is inserted on a control panel (103), the control panel (103) is connected with a multi-interface main circuit PCB (106) through a flat cable, the multi-interface main circuit PCB (106) is inserted into a clamping groove between a first metal casing (104) and a second metal casing (105), and a casing front panel (101) and a casing rear panel (107) are sealed with the first metal casing (104) and the second metal casing (105) through screws.
The front panel (101) of the shell is made of PMMA, and the display area is not sprayed with any colored patterns.
The back panel (107) of the shell is provided with a slot for a fan heat dissipation port and a power input interface module interface.
The multi-interface main circuit PCB (106) comprises: the device comprises a power input interface module, a PD decoy module, a voltage conversion module, a color display module, a BUCK synchronous rectification topology module, a half-bridge driving module, a power management module, an MCU control module, a serial port communication module and a power output interface module.
The power input interface module includes: a Type-C female socket, a DC005 socket and a 4mm banana socket; when the Type-C female socket is input, the input signal passes through the PD trapping module, if the input source equipment supports the PD protocol, the PD protocol is trapped to trigger a voltage (the maximum supports 20V) of the maximum PD gear of the input equipment, and when the input signal is input through the 4mm banana socket, reverse connection prevention processing is performed firstly, so that the equipment is prevented from being damaged due to the fact that the positive electrode and the negative electrode are connected reversely.
A voltage conversion module: the maximum input voltage of 80VDC-DC chip is converted into 5V, the voltage is converted into 9V through a synchronous rectification DC chip, the voltage is converted into 3.3V through LDO, various voltages are provided for supplying power to the inside of the multifunctional numerical control direct current adjustable power supply, and 3.3 voltage is output linearly through LDO, is relatively stable and supplies power to the MUC main control chip.
A color display module: a1.44 true color TFT-LCD screen is adopted, the resolution is 128x128, the aspect ratio of the resolution is 1:1, and the screen can rotate in 4 directions, so that a user can observe the tester through different angles. The display contents are respectively displayed according to functions, and the method comprises the following steps: setting output voltage and current, displaying input voltage, output voltage, current, power, electric quantity and energy, equipment running state and running time, and setting menus for common use and software protection.
The BUCK synchronous rectification topology module adopts the MCU control module to output two PWM signals, and two stable internal operational amplifiers connected with the control power management module by voltage are obtained through multi-order RC filtering to form a constant voltage and constant current loop setting, and then a signal is output to drive the BUCK synchronous rectification topology module to output a constant voltage through the half-bridge driving module, so that the overall conversion efficiency of the equipment is improved compared with an asynchronous rectification circuit.
The ADC sampling circuit module is composed of circuits such as a resistor voltage divider, an amplifier and a voltage follower, and input voltage, output current and temperature are processed by an ADC sampling processing unit in the MCU control circuit module through the ADC sampling circuit, so that data to be collected are obtained.
The power management module outputs voltage and output current to be accessed into the power management module through the ADC sampling circuit, and PWM waveforms generated through internal processing are transmitted to the half-bridge driving module, so that the BUCK synchronous finishing topology module can be driven to generate controllable voltage and current, and two closed loops are formed.
A programmable control chip in the MCU control module comprises an ADC sampling function, a serial communication function, a PWM signal output function and an SPI communication function. SPI communication in the programmable control chip communicates with the TFT screen internal drive in the color display module to realize 16-bit full-color display; the internal ADC samples and collects data such as input voltage, output voltage, current, temperature and the like in real time.
The serial port communication realizes real-time interactive operation with computer upper computer software, and the upper computer comprises a series of convenient and rapid operations such as online API upgrading, real-time control, waveform display, waveform amplification and reduction, data export and the like.
And when the temperature rises to a certain height, the temperature control fan can be started, so that the long-term good operation of the equipment is ensured.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A multifunctional numerical control direct current adjustable power supply with multiple interfaces is characterized by comprising: at least
An MCU control module;
the color display module is connected with the first connecting port of the MCU control module;
the serial port communication module is connected with a second connecting port of the MCU control module;
the first connection port of the voltage conversion module is connected with the fourth connection port of the MCU control module;
the first connection port of the power management module is connected with the fifth connection port of the MCU control module, the second connection port of the power management module is connected with the first connection port of the voltage conversion module, and the third connection port of the power management module is connected with the fourth connection port of the ADC sampling circuit module;
the first connecting port of the power input interface module is connected with the second connecting port of the voltage conversion module;
the first connecting port of the PD trapping module is connected with the second connecting port of the power input interface module, and the second connecting port of the PD trapping module is connected with the third connecting port of the voltage conversion module;
the first connecting port of the ADC sampling circuit module is connected with the third connecting port of the power input interface module, the second connecting port of the ADC sampling circuit module is connected with the second connecting port of the power output interface module, and the third connecting port of the ADC sampling circuit module is connected with the sixth connecting port of the MCU control module;
a half-bridge driving module, a first connection port of which is connected with a first output port of the voltage conversion module, and a second connection port of which is connected with a third connection port of the power management module;
a first connection port of the BUCK synchronous arrangement topology module is connected with a third connection port of the power input interface module, and a second connection port of the BUCK synchronous arrangement topology module is connected with a third connection port of the half-bridge drive module;
the device also comprises a power output interface module, wherein a first connecting port of the power output interface module is connected with a third connecting port of the BUCK synchronous finishing topology module.
2. The multifunctional digital control direct current adjustable power supply with multiple interfaces according to claim 1, wherein the MCU control module comprises an ADC sampling processing unit, an SPI driving unit and a PWM control unit.
3. The multifunctional digitally controlled dc adjustable power supply with multiple interfaces of claim 1, wherein the power input interface module comprises: the power supply comprises a first power input interface unit, a second power input interface unit and a third power input interface unit, wherein the first power input interface unit, the second power input interface unit and the third power input interface unit are connected in parallel.
4. The multifunctional digitally controlled dc adjustable power supply with multiple interfaces of claim 1, wherein the power output interface module comprises: a first power output interface unit.
5. The multifunctional numerical control direct current adjustable power supply with multiple interfaces according to any one of claims 1 to 4, characterized by further comprising:
and the intelligent temperature control module is connected with the third connecting port of the MCU control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022243077.5U CN213367637U (en) | 2020-10-10 | 2020-10-10 | Multifunctional numerical control direct current adjustable power supply with multiple interfaces |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022243077.5U CN213367637U (en) | 2020-10-10 | 2020-10-10 | Multifunctional numerical control direct current adjustable power supply with multiple interfaces |
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| Publication Number | Publication Date |
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| CN213367637U true CN213367637U (en) | 2021-06-04 |
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| CN202022243077.5U Active CN213367637U (en) | 2020-10-10 | 2020-10-10 | Multifunctional numerical control direct current adjustable power supply with multiple interfaces |
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