Hi I am just an old guy trying to pick up some electronic knowledge this was inspiring for me I would like to say a big thank you the way you explained how to breakdown the circuit and arrive at the values is priceless, many thanks.
EE here. hFE is an abbreviated term for "Hybrid parameter forward current gain, common emitter". I believe the abbreviation came about when it was used on multimeters. A kind of crude short hand for the test of current gain in a common emitter configuration.
This is a great video, for a complete NOOB like me - thank you. You've explained everything clearly and at a normal speaking-speed [I feel that most electronic tutorials online, are narrated by bored ex-electricians-or-electrical-engineers who sound like they are in a RUSH to catch a bus or something - speeding through some gnarly techno-jargon that only other electricians and/or electrical-engineers would/could understand - which defeats the purpose of a TUTORIAL, which is meant for those of US, who want to LEARN. NOT those who already know.]. Please make more videos, I'm learning a lot. I've pressed the LIKE button and I've subscribed to your channel. Thanks again. Stay safe. Cheers!
@@TheElectricAcademy I'm watching the other videos right now. Keep making them !! It's fun and for me it's excellent for freshing up my dusty memory. It's all coming back now... ;-)
Hi, Thanks for the video. I am new to circuits, can you please explain why you wouldnt just connect a 1k resistor to Q2 gate and remove Q1 all together to get the same result? I think im missing something
Awesome Video Thanks. Question Please : Can you run more than one pair of transistors? Maybe Triple or Quad (eg : Darlington Quad?) or more and if so would that be exponential current gains? Or can you only parallel Darlington pairs to reach your required amperage?
I can’t see why not but you will have the disadvantage of the voltage drop multiplied by the number of Vbe’s and that 3rd transistor would need to dissipate so much heat. That’s just my 2 cents and I’ll admit I have no experience improvising transistor circuits IRL but I have years of experience troubleshooting industrial logic circuits and the positive logic sensor/switches were at most a Darlington with other passive elements. The way I see it, the third device downstream might as well be an ice cube relay with a fly back diode across the coil contacts or the input terminal of a PLC.
Great video. It will help me a lot with my final exams... BTW, there's no link to the worksheet you mention in minute 3:00, is it possible that you put the link?
