Refer: Silicon Chip Magazine February/March, 2014.
A significant improvement on our successful KC-5478 10A Motor Controller Kit. Designed for controlling the speed of power tools such as electric drills, lawn edgers, circular saws, routers or any other appliance with a universal (brush-type) motor, rated up to 10A. The new design is easier to build, has a smoother control, more "grunt" at low speed, features soft start to avoid dangerous kick-back, and improved overload protection. The case has the tricky cut-outs pre-machined, but a little bit of fine tuning may be required to complete the project. Kit includes screen printed machined case, double-sided PCB, GPO, programmed micro and electronic components.
Features:
- Extremely smooth and precise motor speed control
- Speed can be controlled from zero to maximum
- Superb speed regulation under load
- Adjustable speed regulation with feedback control
- Excellent low-speed motor operation
- 2300W (10A) rating
- Cycle-by-cycle current overload protection
- Over-current limiting
- Soft starting
- NTC Thermistor for initial surge current limiting
- Fused protection
- Rugged case with interference suppression included
- For 230VAC brush (universal) motors
- Speed adjustment: Zero to motor’s maximum
- PWM frequency: 980Hz
- Cycle-by-cycle current limiting: 23A peak
- Average current limiting: 15A
- Soft start rate: Up to 2.54s from zero to full speed
- NTC thermistor: 10-ohm at 20°C, <0.1-ohm@10A
Note: Not suitable for inducted or shaded-pole motors
| Output terminals | 3 Pin AU/NZ Mains Plug / Socket |
| Output voltage selection | Potentiometer |
| Kit Form | Full Form (circuit and enclosure) |
| Kit Group | General Projects |
| Difficulty | Complex |
| Contains High Voltage Components | |
| Instructions Included | |
| Application Field | Motor Speed Controller |
| Estimated Construction Time | 4hr |
| Tools required | Soldering Iron,Long Nose Pliers,Flat Head Screwdriver |
| Recommended Minimum Age | 18Yr |
| AC Voltage rating | 240V |
| AC current rating | 10A |
