DC Motor Speed Controller Circuit Electronic.
How to connect the circuit:
1. Always connect the two motor wires to M+ and M– on the terminal block.
2. Always connect the power supply to the kit (5V-16V DC) to the terminal block V+ and V-
3. You have a choice whether to use the same DC voltage to both the motor and the kit, or to use a different voltage for the motor (eg, it might be a 24V motor) from the 5-16V for the kit. If you use the same voltage (5V – 16V) for both the kit and the motor then just add the link LK1 as marked on the PCB. Nothing goes into the E+ and E- positions on the terminal block.
If running the motor from its own supply then do not insert the link LK1. Connect the motor external positive and negative supply to the terminal block E+ and E-.
This schematic diagram come from circuit: DC Motor Speed Controller
Go to that page to read the explanation about above circuit design.
In the electrical sector, a schematic diagram is usually used to describe the design or model of equipment. Schematic diagrams are usually utilized for the maintenance and repair of electronic and electromechanical devices / units. Original schematics were made by hand, using standardized templates or pre-printed adhesive symbols, but nowadays Electrical CAD computer software is often used.
In electronic design automation, until the 1980s schematics were virtually the only formal representation for circuits. More lately, using the progress of computer system technology, other representations were introduced and specialized computer languages were developed, because with the explosive development of the complexity of electronic circuits, classic schematics are getting less practical. As an example, hardware description languages are indispensable for contemporary digital circuit design.