|The following information
is provided by Electro-light:
continuing effort to improve our product, the MC-12 now has a larger
heatsink for cooler operating temperatures and increased reliability.
This circuit is designed to control the speed of a brushed
DC motor with a potentiometer that adjusts the duty ratio from 0% to 100%.
The control method is pulse-width-modulation (PWM).
The circuit is intended for 12 volt systems but will
operate from a 6 - 15 VDC supply.
The output current is rated at 20 amperes
Suitable for electric bicycles, electric scooters,
electric vehicles, and lighting and heating control.
Our customers have also found the MC-12 useful for HHO
generation and hydrogen boosting!
Supply/Motor Voltage: 6 - 15 VDC
Output Current: 0 - 20 amperes continuous
PWM switching frequency: 1250 hz - 120,000 Hz
Available fully assembled, or as a kit. The Kit includes:
(1) Printed circuit board (double-sided, plated-through holes, top and
bottom solder masks)
(1) 15 kΩ potentiometer (duty ratio adjustment)
(1) 100 kΩ potentiometer (frequency adjustment)
(2) Integrated circuits
(2) IC sockets
(1) Power MOSFET
(9) 1/4 W Resistors
(1) 4 Position Terminal Block Connector
(1) 1 Heatsink (1.9" W x 2.05" H x 0.75" D, 1.6 oz)
(1) MOSFET Mounting Hardware (#M-3 machine screw, lock washer, shoulder
washer, and TO-220 insulator).
(1) Complete circuit schematic with wiring diagram and assembly/soldering
- Wiring, assembly, and soldering skills
- A 12 volt battery or dc power supply
- 10 - 12 gauge hook-up wire between the power supply, motor, and PWM.