Product overview
The MB30020 is a 20A electronic speed controller for brushless motors in radio-controlled aircraft, including multicopters and fixed-wing models. Its multicopter configuration uses updated SimonK firmware and the dedicated tgy_debug program, together with a high-stability crystal oscillator for the main controller. The unit measures 46mm long, 26mm wide and 11mm high, and weighs 22g. Its power stage includes high-power MOS devices with a separate heat sink, while a separate voltage-regulator IC supplies the microprocessor.
The MB30020 accepts DC 6–16.8V input, with a stated battery designation of 2–5S Lixx, and includes a BEC rated at 5V and 2A. Continuous output is rated at 20A, while 25A burst operation is limited to up to 10 seconds. Maximum supported motor speeds depend on pole count: 210000 RPM for 2-pole motors, 70000 RPM for 6-pole motors and 35000 RPM for 12-pole motors. At power-on, the motor does not start immediately, regardless of throttle-stick position.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and product identity | DongYang (DYS) MB30020 |
| Product type | MB30020; 20A electronic speed controller |
| Output current | 20A continuous; 25A burst for up to 10 secondsContinuous output rating; burst output is limited to 10 seconds. |
| Input voltage | DC 6–16.8V (2–5S Lixx)The manufacturer pairs this voltage range with the stated 2–5S Lixx designation. |
| BEC output | 5V, 2A |
| Product dimensions | 46mm × 26mm × 11mm (L × W × H)Dimensions are published in length × width × height order. |
| Weight | 22g |
| Supplied firmware | Updated SimonK firmware for multicoptersFirmware configuration for multicopter use. |
| Power-stage construction | Drive transistor and high-power MOS devices with a separate heat sink; PCB described as having extremely low output resistance and high current enduranceConstruction; resistance and current-endurance claims have no quantified measurements. |
| Power-input design | Input described as having extremely low output resistance, with claimed power-stability and battery-protection benefitsBenefits. |
| Power-on motor-start behavior | Motor does not start immediately when power is turned onApplies at power-on regardless of throttle-stick position. |
| Microprocessor voltage regulation | Separate voltage-regulator IC for the microprocessor, with claimed interference resistanceArchitecture and interference-resistance claim. |
| Maximum motor speed: 2 poles | 210000 RPMPublished maximum supported motor speed for a 2-pole motor. |
| Maximum motor speed: 6 poles | 70000 RPMPublished maximum supported motor speed for a 6-pole motor. |
| Maximum motor speed: 12 poles | 35000 RPMPublished maximum supported motor speed for a 12-pole motor. |
| Control program and oscillator | SimonK tgy_debug multicopter program and a high-stability crystal oscillator for the main controllerControl configuration; the claimed precision improvement has no quantified result. |
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