Product overview
The CKESC Breeze 55A FOC from Nanchang Changkong Technology is an electronic speed controller for model-aircraft brushless propulsion. Its field-oriented drive uses vfast observer technology and offers low noise and improved throttle linearity. The controller supports 3–4S power and incorporates a 5V 3A switching step-down BEC. Serial control and output can be customized. Throttle travel must be calibrated before first use and before changing the transmitter or other throttle-signal source to achieve accurate control.
The controller measures 47 × 18.5 × 11mm and weighs 24.2g including wiring. Its input leads are 100mm long and its output leads are 72mm long, both using 14AWG wire. Maximum continuous operating current is 55A with good cooling, while the 60A peak rating applies to a 3S supply. Integration requires suitable motor, propeller and voltage matching, together with a stable load. Mismatched propulsion components or incorrect voltage can reduce performance or damage the controller; prolonged high-temperature operation substantially shortens service life.
Above 120°C, thermal protection gradually reduces maximum output power, potentially to 40% of full-throttle power, and restores original power after cooling. After 500ms of signal loss, output power decreases, throttle falls below 40% within 3 seconds, and then declines slowly to shutdown. Battery protection progressively limits throttle below 9.6V for 3S or 12.8V for 4S. A high-throttle stall can damage the controller; a blocked propeller requires prompt throttle closure or power disconnection. The supply must absorb regenerative energy; battery power is preferred, and DC-supply testing requires avoiding rapid throttle reductions.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | CKESC, Nanchang Changkong Technology; Breeze 55A FOC model aircraft electronic speed controller |
| Control architecture | Uses vfast observer technology |
| Motor drive | Field-oriented control (FOC) drive with low noise and improved throttle linearity |
| Nominal specification | 55A, 3–4S |
| Input voltage configuration | 3–4S |
| Dimensions | 47 × 18.5 × 11mm |
| Weight | 24.2gIncluding wiring. |
| BEC | 5V 3A switching step-down BEC |
| Maximum continuous operating current | 55AWith good cooling. |
| Peak current | 60A3S supply. |
| Input wiring | 100mm, 14AWG |
| Output wiring | 72mm, 14AWG |
| Serial interface | Serial control and output can be customizedCustomizable configuration. |
| Undervoltage protection | Prevents motor startupSupply voltage below the permitted value. |
| Overvoltage protection | Prevents motor startupSupply voltage above the permitted value. |
| Startup protection | Limits starting current and automatically retries startupUnsuccessful motor startup. |
| Stall protection and limitation | Attempts to restart; a stall at high throttle may damage the ESCMotor stalls during normal operation. |
| Overtemperature protection | Gradually reduces maximum output power, potentially to 40% of full-throttle power; restores original power after coolingTemperature exceeds 120°C. |
| Overcurrent protection | Limits peak current to prevent it exceeding the limit |
| Overload protection | Limits maximum throttle to protect the propulsion systemExcessive motor load detected. |
| Signal-loss protection | Gradually reduces output power, rapidly lowers throttle below 40% within 3 seconds, then slowly reduces throttle until shutdownControl signal lost for 500ms. |
| Battery protection | Gradually limits output throttle to prevent battery overdischarge3S battery below 9.6V or 4S battery below 12.8V. |
| Throttle calibration | Throttle travel must be calibrated for accurate controlBefore first use and before replacing the transmitter or throttle-signal source. |
| Propulsion matching | Mismatched motors, propellers, non-propeller or varying loads, or incorrect voltage may reduce performance or damage the ESCAircraft installation. |
| Stall response requirement | Use a stable load; promptly close the throttle or disconnect power if the propeller is blockedPropeller externally stalled. |
| Cooling requirement | Maintain good cooling; prolonged high-temperature operation accelerates component aging and substantially shortens service lifeProlonged operation at high temperature. |
| Energy recovery and power-supply requirement | Returns energy to the supply, which must absorb sufficient regenerative energy to avoid ESC damage; battery power is preferred, and rapid throttle reduction should be avoided during DC-supply testingRegenerative operation; testing with a DC power supply. |
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