Apr 9, 2020 #1 M marcogmaia Newbie level 5 Joined Apr 15, 2019 Messages 8 Helped 1 Reputation 2 Reaction score 1 Trophy points 3 Activity points 67 Hello, I've ran simulations with this driver circuitry, tested it in my bench, and is working nicely, but I've never seen this configuration before. If this topology have a name, what is it called? And what cautions should I take? I only need a max of 500Hz. Last edited: Apr 9, 2020
Hello, I've ran simulations with this driver circuitry, tested it in my bench, and is working nicely, but I've never seen this configuration before. If this topology have a name, what is it called? And what cautions should I take? I only need a max of 500Hz.
Apr 9, 2020 #2 d123 Advanced Member level 5 Joined Jun 7, 2015 Messages 2,505 Helped 494 Reputation 992 Reaction score 525 Trophy points 1,393 Location Spain Activity points 27,148 No idea... Common emitter driving common collector driving drain follower with slow rise and fall time output? I've seen a PNP used for fast FET turn off and to keep bounce loop inside MOS and PNP. I like this kind of circuit. What function does common collector serve? Along with diode, is it supposed to implement fast turn-on and fast turn-off?
No idea... Common emitter driving common collector driving drain follower with slow rise and fall time output? I've seen a PNP used for fast FET turn off and to keep bounce loop inside MOS and PNP. I like this kind of circuit. What function does common collector serve? Along with diode, is it supposed to implement fast turn-on and fast turn-off?
Apr 9, 2020 #3 M marcogmaia Newbie level 5 Joined Apr 15, 2019 Messages 8 Helped 1 Reputation 2 Reaction score 1 Trophy points 3 Activity points 67 Yes, I was trying to speed up the fall time of the FET
Apr 9, 2020 #4 KlausST Advanced Member level 7 Joined Apr 17, 2014 Messages 25,152 Helped 4,868 Reputation 9,757 Reaction score 5,535 Trophy points 1,393 Activity points 168,317 Hi, Not that bad. But a lot of effort. There are high side power switches ... with additional features. Maybe something like this: NCP45524I Klaus
Hi, Not that bad. But a lot of effort. There are high side power switches ... with additional features. Maybe something like this: NCP45524I Klaus
Apr 9, 2020 #5 M marcogmaia Newbie level 5 Joined Apr 15, 2019 Messages 8 Helped 1 Reputation 2 Reaction score 1 Trophy points 3 Activity points 67 For me cost is the problem, the circuit e in the picture costs about 10 - 15 cents.
Apr 9, 2020 #6 KlausST Advanced Member level 7 Joined Apr 17, 2014 Messages 25,152 Helped 4,868 Reputation 9,757 Reaction score 5,535 Trophy points 1,393 Activity points 168,317 Hi, I see. But you need to take the overall cost into consideration. * assembling cost for 8 additional parts * increased board size * stock costs * purchase costs * increased failure rate * and so on... Klaus
Hi, I see. But you need to take the overall cost into consideration. * assembling cost for 8 additional parts * increased board size * stock costs * purchase costs * increased failure rate * and so on... Klaus