The ground on the MCU and the low side dont connect to the same place through what black magic? Or are you lugging a second battery around? That sounds like a waste of space, and an additional thing to fail or malfunction at the wrong moment.
I have built high current drivers, and I have yet to blow one or see one blow from an over-current. The one im designing for my tank even has closed loop current monitoring for additional protection. Actually come to think of it, SSRs are so inefficient and slow compared to mosfets I suspect for any power level you could affordably use an SSR, you would need very little heat sinking if any. On Fri, Oct 10, 2014 at 2:00 PM, Joe Sommer <[email protected]> wrote: > > > On Friday, October 10, 2014 8:21:21 AM UTC-4, True North Armouries wrote: >> >> I dont understand why anyone uses an SSR these days, when 200 amp mosfets >> can be had for <3$ each. >> > > Build some high current drivers. Be certain to mount hefty heat sinks. > Report back after you have fried a few. > > >> For your circuit to work, there must be a common ground. Ultimately the >> ground on your micro-controller and your load meet up no matter what you do. >> > > Incorrect - the GND on your microprocessor and the low-side power > for your load are NOT connected when you use an opto-isolator or SSR. > > > -- > -- > You are currently subscribed to the "R/C Tank Combat" group. > To post a message, send email to [email protected] > To unsubscribe, send email to [email protected] > Visit the group at http://groups.google.com/group/rctankcombat > > --- > You received this message because you are subscribed to the Google Groups > "R/C Tank Combat" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Isaac Goldman 5142334423 This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
