You said the supply is 14V to 24V but you also say it is a motor from a toy car. I've never seen a toy operate on 24V!HolyMustard said:i'm just wondering how it's working without generating mass heat or even blowing up? cuz by what you guys are saying is the transistors are being worked hard or that it shouldn't even work? (could it be that i'm not actually running it continuously for more than 2secs?)
The motor has spec's for how much heat it can dissipate, transistors also have heat spec's. The amount of heat is calculated from the voltage across it times the current through it.
The base resistors were a high value so the transistors didn't turn on very well. Therefore the motor didn't get anywhere near the full supply voltage and was saved from burning up.