Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

my transistor gets hot, line follower/dark sensor

Status
Not open for further replies.

leonheard

Newbie level 3
Newbie level 3
Joined
Jan 26, 2013
Messages
4
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Visit site
Activity points
1,308
hi!

i have almost made a line following car (toy) but i have 1 problem.... my transistor gets hot after a while... am using about 7 volts power supply, i have 2 transistor as a darlingon " bc337 transistors "( when i put the light off the dc motor run very fast like i want ) but when i touch the transistor 2, is hot! )

then i changed the transistor 2 to a 2N2219 ( it was working okei, but also hot, and i think its broke, cuz it doesnt work anymore ) then i used a BD243 transistor, its still alive, but it gets hot 2,

i use resistors, so i dont know what to do....
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top