Ttelmah
Joined: 11 Mar 2010
Posts: 19549
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 Posted: Wed Oct 27, 2010 3:54 am |
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Not really true, but possibly in parts.....
_Both_ chips require careful design.
The original 8051, was designed with ESD 'in mind', and has better protection than the standard PIC _but_ many '8051' chips that you will get now, are clones, and use similar technology to the PIC.... There are though special derivatives like the C8051F70x, which are latter versions again designed to help with noise immunity, and these are significantly more forgiving. The PIC16, is itself more forgiving than the PIC18 family.
With proper design, there are plenty of PIC's out there controlling large H-bridges (have a design in use, that handles 6KVA at 80V), with a PIC18, and some others going larger than this (one PIC based design controlling over 80KVA). However the latter is synthesizing three phase PWM sinusoids, rather than just an H-Bridge.
Generally, PICs tend perhaps to be used more commonly by people who have not got the general knowledge of how to design when handling power, so a lot more more problems are then seen....
The PIC can be used fine, but _you_ will need to look perhaps slightly more carefully at overall design.
Best Wishes |
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