Product overview
The CKESC Breeze 40A-M FOC is a UAV electronic speed controller from Nanchang Changkong Technology Co., Ltd., intended for motor control within a propulsion system. Its FOC drive uses vfast observer technology and provides kinetic energy recovery. The controller measures 50 × 23 × 12.8 mm and weighs 30 g including wiring, giving integrators a compact component envelope. Electrical integration covers 6~14S operation and a 1000–2000 µs throttle range; serial control and output are available through customization.
The maximum continuous operating current is 40 A under specific cooling conditions, making heat management a material integration requirement. Above 120°C, protection gradually reduces maximum power, potentially to 40% of full-throttle power, and restores it as temperature falls. Voltage protections inhibit startup outside permitted limits, while startup, current, overload and battery protections manage other operating faults. Signal loss initiates a staged throttle reduction to shutdown. Stall protection attempts a restart, but a stall at high throttle can damage the controller.
Specifications
| Specification | Value & conditions |
|---|---|
| Model | CKESC Breeze 40A-M FOC |
| Rated specification | 40A 6~14S |
| Voltage | 6~14S |
| Dimensions | 50 × 23 × 12.8 mm |
| Weight | 30 gIncluding wiring. |
| Maximum continuous operating current | 40 AUnder specific cooling conditions. |
| Throttle travel range | 1000–2000 µs |
| Observer technology | Vfast observer technology |
| Motor control | FOC drive with an efficient algorithm, motor adaptability, high thrust efficiency, low noise and improved throttle linearity. |
| Energy recovery | Kinetic energy recovery. |
| Serial interface | Serial control and output.Available through customization. |
| Low-voltage protection | Prevents motor startup.Supply voltage below the permitted value. |
| High-voltage protection | Prevents motor startup.Supply voltage above the permitted value. |
| Startup protection | Limits startup current and automatically retries startup.Unsuccessful motor startup. |
| Stall protection | Attempts to restart the motor after a stall, generally caused by an external force.Motor stall during normal operation; a stall at high throttle may damage the ESC. |
| Overtemperature protection | Gradually reduces maximum output power, potentially to 40% of full-throttle power; restores the original power after the temperature falls.Temperature exceeds 120°C. |
| Overcurrent protection | Limits peak current to prevent it from exceeding the limit. |
| Overload protection | Limits maximum throttle to protect the propulsion system.An excessive motor load is detected. |
| Signal-loss protection | Gradually reduces output power, rapidly lowers throttle below 40% within 3 seconds, then slowly reduces throttle until the motor stops.Control signal has been lost for 500 ms. |
| Battery protection | Gradually limits output throttle to prevent battery overdischarge. |
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