Joined: 09 Aug 2004 Posts: 768 Location: Silicon Valley
60Hz from ECCP
Posted: Sat Jan 28, 2012 8:17 pm
Folks,
I’d like to drive an H-bridge with 60Hz square waves with large dead time. This is for a DC to AC inverter.
I wonder. As long as PIC's clock is no faster than 13.1Mhz, it should be possible to generate such slow waveform with ECCP. Right
Of course, there are other options:
- generate the waveform with a timer ISR. 60Hz is pretty slow.
- separate dead time generator (GAL or analog RC delay).
- Nick _________________ Read the label, before opening a can of worms.
Well you don't say which PIC you're using....but it's a piece of cake to use the 16C84 to make a DC-AC invertor using the H-bridge topology at 60 Hz...
bkamen
Joined: 07 Jan 2004 Posts: 1615 Location: Central Illinois, USA
Posted: Mon Jan 30, 2012 2:14 am
yea... 60hz is so slow (I just did something similar recently) -- that a simple timer ISR should do the trick.
-Ben _________________ Dazed and confused? I don't think so. Just "plain lost" will do. :D
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