2SA1742 2SC4550 A1742 C4550 TO220F switch transistor is a testament to this evolution, offering a modern solution for those seeking to utilize a transistor as a relay or to implement gate all around transistor designs. With its semiconductor properties and compatibility with ltspice transistor ...
Something else I noticed was this - the supply voltage is 5.1V (comes from a 5.1V Zener regulator). But measured from the Cathode to ground of D1 the meter shows around 5.6V how can this be? This unit works which means the circuit works, Ltspice simulation also does work apart from ...
As it turns out, at least one of the calculations in the comments was a bit high. However, I’ve updated the post at the end to explore what was in the comments, and talk a bit more about how you compute power dissipation with or without LTSpice. If you read that post, you might...
I have not tested Bo's design myself but it does look fine on paper. Bo has nicely included the LTSpice files so you can tune this design to suit your own needs and he built it in hardware as final proof that it works as the spice simulator suggested. A 3-transistor +12v to -5.4...