Electronic Speed Control (ESC) Brushless ULTRA CONTROL 20A Race BLHELI, no BEC

S3056
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The Graupner Ultra Control 20 A Race is the ideal controller for all multicopters, but especially... more
The Graupner Ultra Control 20 A Race is the ideal controller for all multicopters, but especially racecopters used in FPV racing. The 20 A Race combines a compact design (23 x 12 x 5 mm), light weight (7 g), super-fast response times and settings optimized for Racecopter.
The Ultra Control 20 A has the open source BLHeli software version 14.2 installed. The flight controller is the only open source electronic speed control that uses the modern 50 MHz Silabs processors and is adjustable and updatable with the Graupner update cable 7168.6. The processor has twice the clock rate of its predecessors. This guarantees higher maximum speeds and precise timing at high speeds.
The power amplifier is located in a 3.3 x 3.3 DFN package. The field effect transistors (FET) have an extremely low internal resistance (<1.7 mOhm). Special FET drivers provide a more effective active freewheel and better cooling of the power amplifier.
The ceramic capacitors used allow very fast start-up times and guarantee high operational safety.
The controller has pre-activated the Damped Light mode. This allows a more precise flight behavior.
The Ultra Control 20 A Race automatically detects normal (PPM) receiver pulses as well as OneShot. The controller and servo paths are already optimized for the GR-18 and Racecopter settings. A 100mm receiver cable is preinstalled.
The speed limit of the 20 A Race is 400,000 rpm for 2-pole motors.
The 50 MHz Silabs processor of the 20 A can be updated and programmed using the Graupner update cable (Part No. 7168.6) and the included adapter.

Characteristics:
  • Open Source BL Heli Software 14.2
  • Only open source ESCs with Silabs processor, updateable and programmable via the Graupner update cable No. 7168.6
  • The new Silabs processor doubles the wire speed for higher maximum speeds and more precise timing at high speeds
  • High DFN 3.3x3.3 EP FET amplifiers with low internal resistance <1.7 mOhm
  • Special fast FET drivers for more effective active freewheeling and cooler condensators
  • Ceramic capacitors for super fast start-up and high operational safety
  • High-precision resistors for faster and more accurate motor start
  • Damped Light mode preset for precise flight characteristics
  • Automatic detection for normal receiver pulses and OneShot mode
  • Preset servo travels and all other settings for the GR-18 and Race Copter
  • Receiver cable 100 mm
  • Speed limit: 400,000 U / min with 2 pole motors

Related links to "Electronic Speed Control (ESC) Brushless ULTRA CONTROL 20A Race BLHELI, no BEC"
Technical information
Dimensions approx. : 23 x 12 x 5
Battery plug connection: Cable
Operating voltage(V) language dependent: 7,4 - 15,2
Width [mm]: 12
Brushless: Yes
Max. continous current [A]: 20
Weight incl. leads [g]: 7
Weight excl. leads [g]: 2.3
Height [mm]: 5
Overall length [mm]: 23
Max. continous current [A]: 20
Pulse frequency [kHz]: 24
Type: Opto
Cell count, LiPo, Lilo, LiFe: 2 - 4S
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