john*michael
- Joined Sep 18, 2014
- 43
yes. But the 10K resistor only draws current when the bulb is on, about 1 milliamp. when off, basically zero
The huge quest for ultra low RDSon with MOSFETs was because on early devices it was difficult to match the typically 0.4 VCEsat that an average transistor could do, there were special low VCEsat types with around 0.2V.The collector-to-emitter voltage will be higher on a bipolar, hence it will get hot, as you have already learned.