I still have memories of some analog switching done with bipolars , only using reverse saturation (collector reversed with emmitter - picture a npn with the emmitter tied at a more positive potential than the collector) . The trick was yielding lower Uce in saturation. Lots of people were quick to point out that the schematic had an error ;)
Best Regards, Matt Tudor , MSEE http://www.gigahertzelectronics.com ----- Original Message ----- From: "Bagotronix Tech Support" <[EMAIL PROTECTED]> To: "Protel EDA Forum" <[EMAIL PROTECTED]> Sent: Tuesday, July 02, 2002 10:33 AM Subject: Re: [PEDA] SPICE sim question > BTW, in engineering school I knew some straight-A students that did nothing > but simulation. When they actually built the circuits, none of them ever > worked as desired. ...... > There were 2 other guys that were electronics whizzes. > Some of the A students came to us for help. One had an interesting design > methodology: he would plug resistor values into the SPICE circuit and keep > simulating it until it worked. Then he built it on a solderless breadboard. > Guess what - it didn't work. At his request, I looked over his circuit. He > had connected the transistors wrong. I pointed this out, and his response > was "shouldn't those transistors work any way you connect them?". > > Best regards, > Ivan Baggett > Bagotronix Inc. > website: www.bagotronix.com * * * * * * * * * * * * * * * * * * * * * * ************************************************************************ * Tracking #: EFD8011DD1CE714E9035A1AC3B979E17105F468E * ************************************************************************ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[email protected] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
