
Controller for BLDC ceiling fans (also called DC ceiling fans) using a sensorless FOC algorithm for quiet operation and stable speed. Works over a wide mains voltage range of 180–250 VAC, with a full set of protection functions and conformal coating.
Specifications
| Power input | |
|---|---|
| Rated voltage | 220 VAC ±10% |
| Operating voltage range | 180–250 VAC |
| Mains frequency | 50/60 Hz |
| Standby power | < 0.7 W |
| Surge immunity (IEC 61000-4-5) | 1 kV differential / 2 kV common mode |
| Motor and power stage | |
| Motor type | BLDC |
| Maximum motor power | 50 W |
| Control method | FOC |
| Position sensing | Sensorless |
| Speed | |
| Speed levels | 5 |
| Lowest speed | 80 RPM |
| Highest speed | 300 RPM |
| Speed accuracy | ±2% |
| Control | |
| Control type | Speed selector box |
| Protection | |
| Protection functions | Overcurrent, short circuit, locked rotor, over/under voltage, phase loss |
| Mechanical and environmental | |
| PCB size | 100 × 100 mm |
| Operating temperature | -10 to +50 °C |
| Storage temperature | -20 to +70 °C |
| Humidity | 20–90 %RH, non-condensing |
| Conformal coating | Yes |
| Connectors / leads | Terminal block |
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Controllers designed and manufactured by HTK Technology (Thai Hung Khang)

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