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LiPo technology - cheap light and powerful.
Yep the only catch is dont over discharge them.
Yep the only catch is dont over discharge them.
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You are right, but there are chips around that do most of the clever stuff for you.....so it should not be a big deal.....Originally posted by 6666 View PostComment
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There is one more gotcha with Lipos and it is this. If you let a cell voltage go below their lower limit - they can swell on recharge and you need to dispose of them. Plus if you are real unlucky they can cause fire. S There are cheap dedicated chargers for lipos - Aero modellers are Lipo experts they were early adopters of these cells. If you need to know, ask an electric flight modeller.Comment
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Boost switcher noise
" Turned out to be more difficult than I thought, as a majority of the switchers I looked at created enormous amounts of supply noise, especially at the high boost (low voltage) end."
Had same trouble in a commercial radio Tx design - The only way to remove the Tx modulation spurs from the switcher was to boost a little higher than required - then turn it off for the Tx duration and freewheel for Tx slot. This gave silent operation when I needed it.
It may be possible to synch the Boost to cut off for the Rx period - bit of a long shot. I had the luxury of 7 of 8 timeslots to recover the rail with the switcher on. SComment
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Deleted my comment.Comment
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