An FOC electronic speed controller (ESC) for which we can supply different chipset combinations to match the application — drones, portable oxygen concentrators, home ventilators, industrial fans and more. Common configurations include a compact 20A~40A FOC ESC measuring 18mm×35mm, and an ultra-compact 10A FOC ESC measuring 20mm×16mm (which can be shrunk further if required).
Solution Overview
The solution uses advanced sensorless FOC technology, delivering energy savings, quiet operation, fast response and reliable start-up from zero speed. It includes multiple protection mechanisms: overvoltage, undervoltage, overcurrent, stall, phase loss, no-load and drive-circuit self-test. A choice of control interfaces is available, including CAN, UART, I2C, SPI and PWM communication. Alongside outstanding performance, product reliability is assured.
Recommended MCU
- KV series: MKV30F64VFM10 — Arm® Cortex®-M4 core, motor-dedicated MCU family; 100MHz core clock; 16kB RAM / 64kB Flash; 12bit ADC, 16bit motor-dedicated PWM
Core Components
- MCU: MKV30F64VFM10 (NXP)
- LDO: MPS, full part number available on request
- Mosfet: Nexperia, full part number available on request
- Op-amp: 3Peak, full part number available on request
- Power module: MPS, full part number available on request
Key Features
- Energy efficient — 5%~20% less power consumption than a square-wave ESC
- Fast acceleration and deceleration — more than twice as fast as a square-wave ESC
- Low noise — sinusoidal current means no current whine from start-up to top speed
- Reliable start-up — zero-speed start, with over 3000 consecutive reliable instant starts from standstill to top speed
- Stable high speed — more than 5% higher speed than a typical square-wave ESC
- Adaptive propeller support — automatically adapts to any propeller, no parameter tuning needed
- Automatic compensation — compensates for motor parameter drift on the fly while running
Applications
Drones, medical, industrial, IoT
Reference Design ESC-20A-NANO3
- Suitable for palm-sized drones, agricultural drones, air purifiers, home ventilators and more
- Small size, high power, customizable to requirements
- Built on the AMetal-FOC motor library, covered by multiple national patents
- Delivers excellent performance while assuring product reliability
Functional Block Diagram
