How to Choose the ECS for Your FPV Drone
Posted by Jenny.
from the Hobbies category at
11 Jan 2024 02:44:11 am.
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MEPSKING has sixteen years of experience in the study and creation of UAV propulsion systems, including drone flight controller, fpv drone esc and 6s brushless motor. There goal is to create a recreational e-commerce platform with an emphasis on FPV propulsion technologies.
1. Understanding ESCs
An ESC, or Electronic Speed Controller, plays a critical role in managing motor speed in an FPV drone. It interprets throttle signals from the flight controller and regulates the brushless motor to achieve the desired speed. Opting for high-quality ESCs contributes to a dependable and smooth flight experience, although various other factors influence overall performance. ESCs are powered by direct current (DC) from the LiPo battery and receive motor signals from the flight controller, providing three-phase alternating current to drive the motor.
2. Types of ESCs
There are two primary types of ESCs: 4-in-1 ESC and single ESC. A 4-in-1 ESC combines four individual ESCs onto a single circuit board, each managing a separate motor. Typically, 4-in-1 ESCs match the flight controller's size, facilitating easy stacking and streamlined installation. With fewer solder joints, they require less soldering and wiring. While 4-in-1 ESCs offer convenience, if one ESC is damaged, replacing the entire board becomes necessary. However, modern 4-in-1 ESCs are highly reliable, minimizing concerns about such occurrences. Single ESCs control only one motor and were more prevalent in the past but have become less popular in recent times. Here I would like to recommend the meps 45A and the meps 60A ESC, which are popular products in there store.
3. Determining ESC Requirements
When selecting an ESC for your FPV drone, ensure compatibility with your battery's voltage and the capacity to handle the current draw from your chosen motor and propeller.
3.1 Voltage Ratings
Confirm that your ESCs support your battery's voltage to prevent damage. ESCs may support input voltages up to 6S or lower, where the terms 6S and 4S denote the cell count in your LiPo battery.
3.2 Current Ratings
ESC current rating, measured in Amps, indicates the maximum current an ESC can handle without damage. The amp rating cannot be too high, only too low. There are two current ratings: continuous and burst. Continuous current represents the sustained current the ESC can handle safely, while burst current indicates the maximum current for short periods, typically less than 10 seconds.
4. Choosing ESC Firmware
The performance difference between BLHeli_S and BLHeli_32 is marginal, making either option a suitable choice. Both firmware versions now support Bi-directional DShot, enabling RPM filtering in Betaflight. While BLHeli_S ESCs are more cost-effective, enabling RPM filtering may involve flashing third-party firmware (e.g., Bluejay), requiring a bit more effort. In contrast, BLHeli_32 works seamlessly out-of-the-box.
BLHeli_32, being the newer generation, boasts advanced features like ESC telemetry and RGB LED support, though these don't significantly impact flight performance. Opt for BLHeli_32 for a more future-proof ESC, or choose BLHeli_S if budget constraints are a consideration.
Tags: meps esc
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