Drone PCB : Manufacturing and Design

Drone PCB : Manufacturing and Design

As drone technology continues to develop, its application areas are also expanding. As one of the core components of the drone, the production quality of the circuit board directly affects the performance of the drone. This article will introduce about what is drone PCB and tips of manufacturing and design.

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    Definition and composition of drone PCB

    Drone PCB or UAV circuit board refers to the circuit board used to connect and control various electronic components in drones. It is composed of multiple electronic components and wires. The design and manufacturing of drone PCB need to take into account the special needs of drones, such as lightweight, high strength, low power consumption, etc.

    Functions of drone PCB

    UAV circuit boards have multiple functions. First of all, it is the core control component of the drone, responsible for transmitting instructions, controlling flight and performing tasks. Secondly, the drone PCB can connect various sensors and actuators to realize data collection and control signal transmission. In addition, it can also provide functions such as power management and communication interfaces to support the stable operation of drones.

    Application fields of drone PCB

    What is drone PCB?
    What is drone PCB?

    Drone circuit boards are widely used in many fields. First of all, the military field is one of the important application scenarios of drone PCB boards, which are used for military reconnaissance, target tracking, strike and other tasks. Secondly, in the civilian field, drone circuit boards are used in aerial photography, logistics distribution, environmental monitoring, etc. In addition, scientific research institutions and educational institutions also use UAV circuit boards for experiments and teaching.

    Manufacturing Methods and Tips of drone PCB

    In the production process of drone PCBs, small details are particularly important.

    1. Pad positioning: protecting the pad and related to the stability of the circuit.

    In the production of drone PCB, the accuracy of soldering pad positioning plays a vital role in the welding quality and circuit stability. Correct pad positioning can ensure the quality of welding, and can also protect the pads to prevent short circuits or pad damage during excessive welding. Therefore, the positioning of the pads needs to be rigorous and accurate.

    2. Pad size: related to the convenience, accuracy and firmness of welding

    The pad size refers to the diameter of the copper around the pad. Its size will not only be directly related to the convenience and accuracy of welding, but also affect the firmness of the pad. If the pad is too small, a higher level of skill is required to perform welding accurately, and the welding firmness will be poor; if the pad is too large, it will occupy too much space on the circuit board, resulting in too large density of the circuit board.

    3. PCB layout: related to the circuit path and signal transmission

    PCB layout refers to the positional relationship and connection method of components, lines and pads on a circuit board. Whether the PCB layout planning is reasonable or not has a crucial impact on the circuit path and signal transmission. A good PCB layout plan should follow the principles of simple layout, shortest paths, shortest signal transmission, and reasonable distribution of components.

    4. Tracking traces: related to circuit paths and signal transmission

    Trace routing refers to the process of drawing circuit connecting lines on the circuit board according to the circuit layout design. The quality of trace traces is related to the circuit path and signal transmission, and also affects the appearance and engineering practicality of the circuit board. An excellent tracking routing solution should follow the principles of shortest path, layering, simplicity and beauty, and avoiding interference.

    About Drone PCB design

    Drone PCB design : problems and methods
    Drone PCB design : problems and methods

    The necessity of drone PCB design

    With the development of science and technology, drones are playing an increasingly important role in aerial photography, monitoring, transportation, military and other fields. PCB design is one of the key steps in the production of drones.

    On the one hand, it can optimize the performance and appearance of the drone, improve the level of aerodynamics and mechatronics, on the other hand, it can also reduce production costs and manufacturing difficulty, achieving rapid , the purpose of mass production of drones accurately and conveniently.

    But at the same time, due to the electromagnetic interaction between electronic components and circuit boards, problems such as electronic interference, turbulence, and noise will occur, which will affect the flight quality and signal stability of the drone.

    Causes and effects of electromagnetic compatibility problems

    Electromagnetic compatibility problems are mainly caused by the following factors:
    First, mutual interference occurs when electromagnetic waves propagate inside and outside the drone;

    Second, the changes in the electric and magnetic fields caused by the differences in the electromagnetic properties of the drone’s electronic components and metal components. These factors will have a serious impact on drones. For example, the transmission quality of drones will decrease, signal interference will increase, the stability of drones will decrease, and the fuselage will be susceptible to external interference, etc.

    Methods and techniques

    (1) Reasonable planning of PCB design

    In the design of drone PCB, electromagnetic compatibility issues must be fully considered and a reasonable PCB structure and wiring scheme must be planned. During the design process, the appropriate number of circuit board layers, pin arrangement, and grounding scheme should be adopted to avoid strong electromagnetic interference from signal lines, power lines, and ground wires.

    (2) Select appropriate electronic components

    In order to prevent electromagnetic interference, we need to choose appropriate electronic components. We should try our best to choose electronic components with strong radiation protection, anti-interference ability, and stable operation to effectively reduce electromagnetic wave noise that harms circuits.

    (3) Install filters and other components

    Functional components such as filters are reserved on the circuit board of the drone. By filtering the drone signal and power line, the generation of electromagnetic radiation and noise is reduced to achieve the purpose of protecting against interference.

    Electromagnetic compatibility is an important issue in drone PCB design. PCB designers should fully understand the factors and effects of electromagnetic interference and adopt appropriate techniques and methods to deal with the problem.

    About Drone controller circuit board

    Drone controller circuit board : composition and function
    Drone controller circuit board : composition and function

    Composition of drone controller circuit board

    The drone controller circuit board (i.e. flight control board) is one of the core components of UAV flight. It is composed of multiple circuit modules. In a general drone, its main circuit modules include flight control chip, remote control receiving module, motor drive module and battery power detection module.

    The flight control chip is the core part of the entire controller circuit board. It is responsible for receiving instructions from the remote controller and converting them into motor control signals. At the same time, the flight control chip also integrates multiple sensors, such as gyroscopes, accelerometers and magnetometers, to detect the attitude and acceleration information of the aircraft.

    The remote control receiving module is a module that receives the remote control signal and transmits it to the flight control chip. Drone controller circuit boards generally support multiple remote control frequency bands and signal formats to accommodate different brands and models of remote controls.

    The motor drive module is the part responsible for controlling the operation of the motor. UAV controllers usually have a four-axis or six-axis structure, and each axis is equipped with a motor. The motor drive module is responsible for converting the signal output by the flight control chip into a control signal for the motor.

    The battery power detection module is the part that detects the battery power. It can detect the power of the drone battery in real time and feed it back to the remote controller through the flight control chip to remind the pilot to charge or replace the battery in time.

    The function of the drone controller circuit board

    The function of the flight controller circuit board is to convert the instructions from the remote controller into control signals for the motor, and control the operation of the motor to maintain a certain degree of stability and attitude control during the flight of the aircraft.

    At the same time, the flight control chip will detect the attitude and acceleration information of the drone through internal sensors, and the controller circuit board will adjust the motor control signal in real time based on this information to maintain the stability and hovering state of the drone. In addition, the controller circuit board can also locate the aircraft’s position through an external GPS module and achieve precise navigation and track control.

    FAQ-about PCB

    Drone PCB or UAV circuit board refers to the circuit board used to connect and control various electronic components in drones. It is composed of multiple electronic components and wires.

    The drone controller circuit board (i.e. flight control board) is one of the core components of UAV flight. It is composed of multiple circuit modules. In a general drone, its main circuit modules include flight control chip, remote control receiving module, motor drive module and battery power detection module.

    UAV circuit boards have multiple functions. First of all, it is the core control component of the drone, responsible for transmitting instructions, controlling flight and performing tasks. Secondly, the drone PCB can connect various sensors and actuators to realize data collection and control signal transmission. In addition, it can also provide functions such as power management and communication interfaces to support the stable operation of drones.

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