CN211830578U - Secondary power supply conversion circuit device - Google Patents

Abstract

The utility model relates to a secondary power supply conversion circuit device, which comprises an acquisition equipment module and an external voltage source module, wherein the secondary power supply conversion module is arranged between the acquisition equipment module and the external voltage source module; the secondary power supply conversion module comprises a main control circuit board, a first chip, a second chip, a component interface and a heat dissipation module, wherein the first chip, the second chip, the component interface and the heat dissipation module are welded on the main control circuit board; and respectively welding the first chip and the second chip with a plurality of capacitors on the main control circuit board by taking the middle point of the main control circuit board as a center. When the secondary power supply conversion module is used, an external voltage source is connected to the acquisition equipment module through a ground power line, and voltage is reduced to 5V/12V after voltage intermediate conversion is carried out through the first chip and the second chip. The 5V voltage after the conversion provides the collection equipment module, and the 12V voltage provides wireless transmission module, has reached and has solved the unmatched problem of unmanned aerial vehicle busbar voltage and DSP circuit board and wireless data transfer radio station supply voltage.

Description

Secondary power supply conversion circuit device

Technical Field

The utility model relates to a secondary power supply converting circuit device for in aspect of unmanned aerial vehicle ground sampling equipment power supply.

Background

With the continuous development of modern electronic technology, the circuit design is continuously advancing towards high speed and integration, and the problem of electromagnetic compatibility of high-speed and high-density electronic products is increasingly highlighted, so that the related influence and requirements of EMC in the design of printed circuit boards are made. The electromagnetic compatibility refers to that the equipment can normally work in an electromagnetic environment in a working environment without generating electromagnetic interference capability which cannot be borne by other equipment in the environment. Unmanned aerial vehicle ground sampling equipment can carry out real-time acquisition to its each item index data during unmanned aerial vehicle test operation. And after data are collected in real time, the data are transmitted to a small monitoring station for data analysis and processing, and the next action is executed according to the analysis and processing result. The ground sampling equipment consists of modules such as wireless network transmission, data acquisition and processing and the like, and is connected with the unmanned aerial vehicle comprehensive control machine through a serial port to carry out real-time data interaction. The wireless network transmission module uses an MDS SD4 data transmission radio station to carry out wireless network communication, and the working voltage is + 12V. The data acquisition and processing module is a circuit board with a DSP chip as a core, and the working starting voltage is 5V. And unmanned aerial vehicle busbar voltage is + 27V, makes the unmatched problem of unmanned aerial vehicle busbar voltage and DSP circuit board and wireless data transfer station supply voltage easily.

Disclosure of Invention

In view of this, the utility model aims to solve the technical problem that a secondary power supply switching circuit device that can solve the voltage outfit problem between unmanned aerial vehicle busbar voltage and DSP circuit board and the wireless data transfer station power supply is provided.

Therefore, the technical solution of the present invention is to provide a secondary power conversion circuit device, which includes an acquisition device module directly placed on the ground, and an external voltage source module placed on the ground, wherein a secondary power conversion module for converting an external power supply voltage 27V into a secondary power supply of 5V/12V respectively is provided between the acquisition device module and the external voltage source module, and the secondary power conversion module is used by the acquisition device module; the secondary power supply conversion module comprises a main control circuit board, a first chip, a second chip, a component interface and a heat dissipation module, wherein the first chip, the second chip, the component interface and the heat dissipation module are welded on the main control circuit board; and respectively welding the first chip and the second chip with a plurality of capacitors on the main control circuit board by taking the middle point of the main control circuit board as a center.

Further, the main control circuit board is formed by adopting a 4-layer printed circuit board, the first chip, the second chip and 330 muF capacitor are uniformly distributed on the main control circuit board, and a power line with the width of 20mil is distributed on each layer of printed circuit board.

Further defined, the first chip is a voltage chip of model DPBL16-W24S5, which converts the external 27V power supply to the 5V starting voltage for the DSP circuit to work. The voltage chip is provided with 6 pins, the + Vin pin is connected with 27V external voltage, -Vin, the GND pin is connected with a digital ground, REM is a reference voltage source, and the NP pin is suspended.

The first chip is internally provided with a first chip circuit which comprises a voltage chip U1, a capacitor C1, a capacitor C4 and a capacitor C6 which are connected to the voltage chip U1, wherein the capacitor C1, the capacitor C4 and the capacitor C6 are connected to the voltage chip U1 in parallel, a capacitor C2 and a capacitor C3 which are connected to the voltage chip U1 in parallel, and the capacitor C2 and the capacitor C3 are connected to the voltage chip U1 in parallel.

Further, the second chip is a voltage chip with model number PE75-24S12, which converts external 27 power into +12V power required by the wireless data transmission device to work, the voltage chip has 8 pins, the + Vin pin is connected with 27V external voltage, the-Vin, GND and the-S pin are connected with digital ground, REM is a reference voltage source, and the pin Vo1 outputs 12V working voltage.

Further, a second chip circuit is arranged inside the second chip, and the second chip circuit comprises a voltage chip U2, a capacitor C5 connected to the voltage chip U2, and a capacitor C7, wherein the capacitor C5 and the capacitor C7 are connected to the voltage chip U1 in parallel; a capacitor C8 and a capacitor C9 which are connected to the voltage chip U2, wherein the capacitor C8 and the capacitor C9 are connected to the voltage chip U1 in parallel.

The utility model has the advantages of: a secondary power supply conversion module for converting an external power supply voltage 27V into a secondary power supply of 5V/12V respectively for the acquisition equipment module is arranged between the acquisition equipment module and the external voltage source module; the secondary power supply conversion module comprises a main control circuit board, a first chip, a second chip, a component interface and a heat dissipation module, wherein the first chip, the second chip, the component interface and the heat dissipation module are welded on the main control circuit board; and respectively welding the first chip and the second chip with a plurality of capacitors on the main control circuit board by taking the middle point of the main control circuit board as a center. When the secondary power supply conversion module is used, an external voltage source is connected to the acquisition equipment module through a ground power line, and voltage is reduced to 5V/12V after voltage intermediate conversion is carried out through the first chip and the second chip. The 5V voltage after the conversion provides the collection equipment module, and the 12V voltage provides wireless transmission module, has reached and has solved the unmatched problem of unmanned aerial vehicle busbar voltage and DSP circuit board and wireless data transfer radio station supply voltage.

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and embodiments.

[ description of the drawings ]

Fig. 1 is a block schematic diagram of a secondary power conversion circuit device according to the present invention;

fig. 2 is a circuit diagram of a first chip circuit according to the present invention;

fig. 3 is a circuit diagram of a second chip circuit according to the present invention.

[ detailed description ] embodiments

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to fig. 3, a secondary power conversion circuit device is described below with reference to an embodiment, which includes an acquisition device module directly disposed on the ground, an external voltage source module disposed on the ground, and a secondary power conversion module disposed between the acquisition device module and the external voltage source module.

The secondary power supply conversion module is mainly used for converting external power supply voltage 27V into secondary power supplies of 5V/12V respectively for the acquisition equipment module. The secondary power supply conversion module comprises a main control circuit board, a first chip, a second chip, a component interface and a heat dissipation module, wherein the first chip, the second chip, the component interface and the heat dissipation module are welded on the main control circuit board; and respectively welding the first chip and the second chip with a plurality of capacitors on the main control circuit board by taking the middle point of the main control circuit board as a center. The main control circuit board is formed by adopting 4 layers of printed circuit boards, the first chip, the second chip and 330 mu F capacitors are uniformly distributed on the main control circuit board, and power lines with the width of 20mil are distributed on the printed circuit boards of all layers.

The first chip is a voltage chip of DPBL16-W24S5, which converts an external 27V power supply into a 5V starting voltage for the DSP circuit to work. The voltage chip is provided with 6 pins, the + Vin pin is connected with 27V external voltage, -Vin, the GND pin is connected with a digital ground, REM is a reference voltage source, and the NP pin is suspended. After the voltage is reduced by the secondary power conversion module, the pin Vo1 outputs 5V working voltage. A first chip circuit is arranged in the first chip and comprises a voltage chip U1, a capacitor C1, a capacitor C4 and a capacitor C6 which are connected to the voltage chip U1, a capacitor C1, a capacitor C4 and a capacitor C6 which are all connected to the voltage chip U1 in parallel, a capacitor C2 and a capacitor C3 which are connected to the voltage chip U1 in parallel, wherein the capacitor C2 and the capacitor C3 are connected to the voltage chip U1 in parallel.

The second chip is a voltage chip of PE75-24S12, the voltage chip converts an external 27 power supply into a +12V power supply required by the wireless data transmission equipment to work, the voltage chip is provided with 8 pins, the + Vin pin is connected with the 27V external voltage, the-Vin pin, the GND pin and the-S pin are connected with a digital ground, REM is a reference voltage source, and the pin Vo1 outputs 12V working voltage. The secondary power supply conversion module provides stable 5V and 12V voltage for the DSP chip and the wireless data transmission station under the control of the module chip and the full load condition. A second chip circuit is arranged in the second chip, and the second chip circuit comprises a voltage chip U2, a capacitor C5 connected to the voltage chip U2 and a capacitor C7, wherein the capacitor C5 and the capacitor C7 are connected to the voltage chip U1 in parallel; a capacitor C8 and a capacitor C9 which are connected to the voltage chip U2, wherein the capacitor C8 and the capacitor C9 are connected to the voltage chip U1 in parallel.

The secondary power supply conversion module is formed by a DC-DC voltage conversion chip and converts an external secondary power supply. The secondary power supply conversion is to convert the voltage of an external power supply into the voltage of ground acquisition equipment, and directly provide the voltage for a DSP chip in the acquisition equipment and wireless communication equipment for use. The power conversion is a bridge link for the operation of the converter system. External voltage source generally is the 27V voltage that the unmanned aerial vehicle generating line provided, connects on ground collection equipment through the cable. After voltage intermediate conversion is carried out by the voltage conversion chip, the voltage is reduced to 5V/12V. The converted 5V voltage is provided for the acquisition module, and the 12V voltage is provided for the wireless transmission module. The problem of unmanned aerial vehicle busbar voltage and DSP circuit board and wireless data transfer radio station supply voltage unmatched has been solved to the arrival.

In summary, a secondary power conversion module for converting the external power supply voltage 27V into the secondary power supplies of 5V/12V respectively is disposed between the collection device module and the external voltage source module; the secondary power supply conversion module comprises a main control circuit board, a first chip, a second chip, a component interface and a heat dissipation module, wherein the first chip, the second chip, the component interface and the heat dissipation module are welded on the main control circuit board; and respectively welding the first chip and the second chip with a plurality of capacitors on the main control circuit board by taking the middle point of the main control circuit board as a center. When the secondary power supply conversion module is used, an external voltage source is connected to the acquisition equipment module through a ground power line, and voltage is reduced to 5V/12V after voltage intermediate conversion is carried out through the first chip and the second chip. The 5V voltage after the conversion provides the collection equipment module, and the 12V voltage provides wireless transmission module, has reached and has solved the unmatched problem of unmanned aerial vehicle busbar voltage and DSP circuit board and wireless data transfer radio station supply voltage.

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, without thereby limiting the scope of the invention. Any modification, equivalent replacement and improvement made by those skilled in the art without departing from the scope and spirit of the present invention should be within the scope of the claims of the present invention.

Claims (6)

1. The utility model provides a secondary power supply converting circuit device, its includes directly arranges the collection equipment module on ground in, arranges the outside voltage source module on ground in which characterized in that: a secondary power supply conversion module for converting an external power supply voltage 27V into a secondary power supply of 5V/12V respectively for the acquisition equipment module is arranged between the acquisition equipment module and the external voltage source module; the secondary power supply conversion module comprises a main control circuit board, a first chip, a second chip, a component interface and a heat dissipation module, wherein the first chip, the second chip, the component interface and the heat dissipation module are welded on the main control circuit board; and respectively welding the first chip and the second chip with a plurality of capacitors on the main control circuit board by taking the middle point of the main control circuit board as a center.

2. The secondary power conversion circuit device according to claim 1, wherein: the main control circuit board is formed by adopting 4 layers of printed circuit boards, the first chip, the second chip and 330 mu F capacitors are uniformly distributed on the main control circuit board, and power lines with the width of 20mil are distributed on the printed circuit boards of all layers.

3. The secondary power supply conversion circuit device according to claim 1 or 2, characterized in that: the first chip is a voltage chip with the model of DPBL16-W24S5, and the voltage chip converts an external 27V power supply into 5V starting voltage for the DSP circuit to work; the voltage chip is provided with 6 pins, the + Vin pin is connected with 27V external voltage, -Vin, the GND pin is connected with a digital ground, REM is a reference voltage source, and the NP pin is suspended.

4. The secondary power supply conversion circuit device according to claim 1 or 2, characterized in that: a first chip circuit is arranged in the first chip, the first chip circuit comprises a voltage chip U1, a capacitor C1, a capacitor C4 and a capacitor C6 which are respectively connected to the voltage chip U1, and the capacitor C1, the capacitor C4 and the capacitor C6 are all connected to the voltage chip U1 in parallel; the capacitor C2 and the capacitor C3 are respectively connected to the voltage chip U1, and the capacitor C2 and the capacitor C3 are connected to the voltage chip U1 in parallel.

5. The secondary power supply conversion circuit device according to claim 1 or 2, characterized in that: the second chip is a voltage chip of PE75-24S12, the voltage chip converts an external 27 power supply into a +12V power supply required by the wireless data transmission equipment to work, the voltage chip is provided with 8 pins, the + Vin pin is connected with the 27V external voltage, the-Vin pin, the GND pin and the-S pin are connected with a digital ground, REM is a reference voltage source, and the pin Vo1 outputs 12V working voltage.

6. The secondary power supply conversion circuit device according to claim 1 or 2, characterized in that: a second chip circuit is arranged in the second chip, and the second chip circuit comprises a voltage chip U2, a capacitor C5 connected to the voltage chip U2 and a capacitor C7, wherein the capacitor C5 and the capacitor C7 are connected to the voltage chip U1 in parallel; a capacitor C8 and a capacitor C9 which are connected to the voltage chip U2, wherein the capacitor C8 and the capacitor C9 are connected to the voltage chip U1 in parallel.

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