is an electronic speed controller primarily designed for small to mid-sized brushless RC airplanes and gliders, such as the Art-Tech Diamond 1100. It serves as the "brain" of the propulsion system, regulating motor speed based on signals from the flight receiver.
Key Specifications
Current Rating: 20A continuous output, typically capable of handling 25A–30A bursts for up to 10 seconds.
Battery Compatibility: Designed for 2S–3S LiPo batteries (7.4V to 11.1V) or 5–9 cell NiMH packs.
BEC (Battery Eliminator Circuit): Features a linear BEC (typically 5V/1A or 5V/2A) to power the receiver and up to 5 micro servos simultaneously.
Physical Specs: Compact and lightweight, usually weighing around 15g–19g with dimensions near 42 x 25 x 8mm.
Programmable Features
The controller is highly customizable through transmitter stick commands:
Brake Settings: Can be enabled for folding propellers (gliders) or disabled for standard flight.
Battery Type: Selectable between LiPo and NiCd/NiMH to ensure proper voltage management.
Cutoff Mode: Customizable low-voltage cutoff threshold to prevent battery over-discharge.
Startup & Timing: Adjustable soft-start for gearboxes and motor timing settings for improved efficiency and smoothness.
Safety and Protection
Safety Arming: The motor will not start upon battery connection unless the throttle stick is at its lowest position.
Thermal Protection: Automatically reduces output power if the ESC temperature exceeds a safe limit (e.g., 110°C).
Signal Loss Protection: Gradually reduces or cuts power if the radio signal is lost for more than 1–2 seconds to prevent flyaways