Product overview
Nanchang ChangKong Technology’s CKESC Breeze 25A×4 FOC combines four UAV electronic speed controllers in an 82*36mm, 11.57g unit. Its specified configuration is 25A*4 with a 3~4S supply, and its continuous operating current is listed as 25A. FOC motor drive provides the control architecture, with features including improved throttle linearity, low noise and kinetic energy recovery. For integration planning, the unit has no BEC, while serial control and output are available through customization.
The controller manages electrical and motor faults through startup inhibition, current limiting, throttle reduction and restart attempts. Above 120°C, maximum output power gradually falls, potentially to 40% of full-throttle power, and returns after cooling. Signal loss for 500ms triggers a reduction below 40% throttle within 3 seconds, followed by gradual shutdown. Battery protection limits throttle below 9.6V for 3S or 12.8V for 4S. Stall recovery attempts do not eliminate the stated risk of ESC damage during a high-throttle stall.
Specifications
| Specification | Value & conditions |
|---|---|
| Model | CKESC Breeze 25A×4 FOC |
| Product architecture | Four-in-one UAV electronic speed controller |
| Rated configuration | 25A*4 3~4S |
| Supply voltage | 3~4S |
| Dimensions | 82*36mm |
| Weight | 11.57g |
| Continuous operating current | 25A |
| BEC | None |
| Motor control | FOC drive with an efficient algorithm, motor adaptability, high thrust efficiency, low noise and improved throttle linearity. |
| Serial interface | Serial control and output can be customized.Customizable configuration. |
| Power-stage features | Kinetic energy recovery, low MOS on-resistance and high-quality ceramic capacitors. |
| 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 after a stall, generally caused by external force.Motor stall during normal operation; a stall at high throttle may damage the ESC. |
| Overtemperature protection | Gradually reduces maximum output power, potentially down 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.Excessive motor load detected. |
| Signal-loss protection | Progressively reduces output power, rapidly lowers throttle below 40% within 3 seconds, then slowly reduces throttle until shutdown.Signal lost for 500ms. |
| Battery protection | Gradually limits output throttle to prevent battery overdischarge.3S battery voltage below 9.6V or 4S battery voltage below 12.8V. |
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