Hello.
I'd like to have your comments on the following design.
I need the batteries to power my unit which consumes 3.3V @ 80mA.
I wanted to ask a few questions please.
**broken link removed**
1. Did I design it correctly?
I'd set the ?VAC and the ?:? ratio after understanding numerous things with your help.
2. Should I use a capacitor post the bridge-rectifier?
3.
I thought of using 3 or 4 1.5V AAA batteries and a 3.3V regulator to power my unit.
Any better way?
Would 3 be ok, or since the current drawing is pretty high, I'd need 4?
4. How long will batteries last at such rated current?
Shall I decrease the current drawing?
5. Say that the batteries in series consume X voltage totally, what would be Vrectifer(out) according to x?
Thank you very much.
I'd like to have your comments on the following design.
I need the batteries to power my unit which consumes 3.3V @ 80mA.
I wanted to ask a few questions please.
**broken link removed**
1. Did I design it correctly?
I'd set the ?VAC and the ?:? ratio after understanding numerous things with your help.
2. Should I use a capacitor post the bridge-rectifier?
3.
I thought of using 3 or 4 1.5V AAA batteries and a 3.3V regulator to power my unit.
Any better way?
Would 3 be ok, or since the current drawing is pretty high, I'd need 4?
4. How long will batteries last at such rated current?
Shall I decrease the current drawing?
5. Say that the batteries in series consume X voltage totally, what would be Vrectifer(out) according to x?
Thank you very much.
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