With the rapid development of drone technology, drones have become an important tool in many industries. Especially driven by intelligence and automation, drones will penetrate deeper into all walks of life. As the “brain” of the drone, the flight controller monitors and adjusts the flight status of the drone in real time to ensure the accuracy and safety of the flight path.
The capacitor inside the flight controller is not just a basic component. Its performance and quality directly affect the flight stability and safety of the drone, making it a key component for achieving efficient control.
PART.01 Multilayer polymer solid aluminum electrolytic capacitor
During the flight of a drone, the flight controller will experience various dynamic changes, which often lead to fluctuations in current and voltage. In order to ensure that the flight controller can operate stably and avoid current ripples from interfering with the system, multilayer polymer solid aluminum electrolytic capacitors play a key filtering role in the controller, ensuring that the flight controller can operate stably and efficiently under high performance requirements.
01 Ultra-thin and miniaturized:
The extremely small volume advantage enables the laminated polymer solid aluminum electrolytic capacitor to occupy less space in the flight controller, which helps to reduce the overall weight of the flight controller and improve the flight efficiency and endurance of the drone.
02 Low impedance:
In the flight controller’s power supply system, the current demand is quickly responded to. Especially under high-frequency and high-speed control signals, low impedance can significantly reduce energy loss and ensure the stability of system voltage and high efficiency of power supply.
03 High capacitance density:
In flight controllers, capacitors need to quickly release large amounts of energy to cope with high loads, especially during sharp turns or acceleration. The high capacitance density of multilayer polymer solid aluminum electrolytic capacitors helps stabilize power fluctuations and prevent power shortages from causing unstable flight or loss of control.
04 Withstands large ripple current:
Flight controllers often encounter current fluctuations and ripples in complex tasks. Multilayer polymer solid capacitors have excellent ripple current tolerance, can effectively suppress current fluctuations, quickly absorb and release current, prevent ripple current from interfering with the aircraft’s control system, and ensure signal accuracy during flight.
PART.02 Chip Supercapacitor
The RTC clock chip in the UAV flight controller can provide an accurate time reference. The SMD supercapacitor serves as a backup power source for the RTC chip. When the flight controller power supply is temporarily interrupted or the voltage fluctuates, it can quickly charge and release power to continue to provide a stable power supply for the RTC clock chip, helping the flight controller to record flight time, control mission execution time nodes, etc., to ensure that the flight mission is executed accurately as planned. Its application advantages are as follows:
01 Wide temperature resistance:
SMD supercapacitors meet 260°C reflow soldering conditions, have a wide temperature range tolerance, and can work stably at high altitudes and extreme climate conditions. Even in rapidly changing temperatures or low temperature environments, capacitor reliability can be ensured to avoid RTC chip errors or data distortion caused by power supply fluctuations.
PART.03 Polymer solid aluminum electrolytic capacitor
The application advantages of polymer solid aluminum electrolytic capacitors in UAV flight controllers are mainly reflected in their miniaturization, high capacity, high efficiency, low impedance and large ripple current bearing capacity, which ensure the power supply stability and reliability of the aircraft in various environments.
01 High capacity density:
In flight controllers, especially under high load or fast dynamic control, polymer solid aluminum electrolytic capacitors can effectively provide high-efficiency energy storage and fast release, reduce space occupancy, and reduce system volume and weight.
02 Low impedance:
The flight controller frequently switches operating modes during operation, and the input current needs to be smoothed and filtered to cope with the sensitivity of various sensors and drive systems to current fluctuations. The low impedance of polymer solid aluminum electrolytic capacitors ensures efficient current transmission under high-frequency applications, smooths current fluctuations, and ensures system stability.
03 Withstands large ripple current:
The power supply system of the flight controller will encounter ripple currents of different frequencies and amplitudes. Polymer solid aluminum electrolytic capacitors have the ability to withstand large ripple currents and can provide stable current output when the current fluctuates greatly, thus avoiding instability or failure of the power supply system due to excessive ripple current.
As the application of drones continues to expand, the requirements for flight controllers will become higher and higher. Shanghai YMIN will continue to innovate and optimize various high-performance capacitors to help drone flight controllers perform more efficiently, more reliably, and more stably.
Post time: Feb-13-2025