Skip to content

ITP Physical Computing

Syllabus
Lessons
Videos
Labs
Resources
Pcomp @ ITP

LabHighCurrentLoad_schem

Schematic drawing of a transistor controlling a DC motor. At left, there is a power plug. The positive terminal of the power plug is connected to the voltage input of a 7805 voltage regulator (the terminal on the left as it faces you). The negative terminal of the power plug is connected to the ground terminal of the regulator (the terminal in the middle). A 1 kilohm resistor is connected to the regulator's output. The other side of the resistor is connected to the base pin of a TIP120 transistor. A DC motor connects to the voltage line between the DC plug and the voltage regulator. The motor's other pin is connected to the transistor's collector pin. The transistor's emitter pin is connected to ground. A diode's cathode is connected to the emitter as well, and its anode is connected to the transistor's collector.

Schematic drawing of a transistor controlling a DC motor.

Posted on August 31, 2014August 23, 2018 Full size 577 × 245

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Comment *

Name *

Email *

Website

Save my name, email, and website in this browser for the next time I comment.

Post navigation

Published inLab: Using a Transistor to Control a High Current Load

Search for:

Syllabus
Lessons
Videos
Labs
Resources
Pcomp @ ITP

ITP Physical Computing Proudly powered by WordPress