#avr Logs

Mar 02 2019

01:24 AM inflex: Any recommendations on a low power (5V 10mA ?) isolated DC-DC converter?
01:29 AM inflex: This is just to power an AN226 volts/amps i2c sensor independent of the line it's measuring
02:08 AM rue_mohr: 10mA
02:09 AM rue_mohr: can you capacitor couple a squarewave?
03:30 AM inflex: well, I imagine you can
03:36 AM rue_mohr: so, if you have two square waves, inverted, and use 2 caps to your isolated circuit, then rectify it on the far side of the caps, you have your power.
03:37 AM rue_mohr: 10mA should be 10uF min., say, 22uF?
03:37 AM rue_mohr: 10mA you can run from a microcontroller output
03:37 AM rue_mohr: a I ahead of ya?
04:40 AM inflex: might be worth a shot
04:40 AM inflex: Was happy to pay for a commercial one, but they're almost all rated 1W or higher
04:40 AM inflex: which is a tremendous overkill
12:03 PM rue_bed2: two 22uF caps are pretty small
12:03 PM rue_bed2: whats the isolation difference?
12:03 PM rue_bed2: 16V?
12:04 PM rue_bed2: less?
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01:35 PM rue_: --
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