Motor Speed Controller PWM 12v 2A 30W
A tiny, all-in-one speed/brightness controller you can stick straight onto your projects. Feed it 6–30 V DC (12 V is most common), hook up a motor or LED strip, and turn the knob to dial in exactly how fast your motor spins or how bright your lights glow.
Plug-and-Play: Four screw terminals (Vin+, Vin–, Vout+, Vout–) make wiring a breeze—no soldering required.
Smooth Control: The knob gives silky-smooth adjustment, so you can creep a fan up to whisper-quiet speed or fade LEDs without flicker.
Built-in Protections: It includes basic diode protection against motor back-EMF and a tiny fuse for minor overloads—ideal for experimenting without instantly frying your gear.
| Feature | Description |
|---|---|
| Operating Voltage | DC 6–30 V (typically used at 12 V) |
| Power Rating | Up to ~30 W at 12 V (≈2.5 A continuous), with momentary peaks up to ~4 A |
| Load Types | DC motors, LED strips, small resistive/heating loads |
| Switching Method | High-frequency PWM (pulse-width modulation) for very low audible noise and smooth control |
| PWM Frequency | ~20 kHz (inaudible humming), set by the onboard driver IC |
| Duty Adjustment | 10 KΩ multi-turn potentiometer (green block + black knob) for fine, repeatable duty-cycle setting |
| Input/Output | 4-pin screw terminal block (Vin+, Vin–, Vout+, Vout–) for easy wiring and polarity clarity |
| Power MOSFET | Low-RDS(on) transistor (under the 8-pin IC) that chops the DC rail according to the PWM waveform |
| 8-pin PWM controller/driver (likely a dedicated motor-drive or comparator chip) | |