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Recent content by auriuman78

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    How to add a Li-Ion charging circuit to board design

    Ended up choosing the MAX1873 at Maxim. It's a QSOP smt 16 pin package so I'll be able to hand solder it to my pcb. Just ordered it. I'll be sure to let you know how it goes once I get it. It's pretty cost effective too, $1.98 ea and they do sell them singly. I did purchase 4 just in case I...
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    How to add a Li-Ion charging circuit to board design

    Most excellent advice, thanks for that. I'll be checking those out shortly - I'll report back what I find and my results with said choice.
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    How to add a Li-Ion charging circuit to board design

    I had planned on keeping my original rectifier check circuit in place to prevent back current. Would that not work in this setup? Previously I'd been using a 12.6v 1.2A DC pack direct to a 12v SLA battery but I had to keep track of how long I'd been charging it. I know Li-Po and Li-Ion are a...
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    How to add a Li-Ion charging circuit to board design

    Thank you very much. The help is appreciated. I'll post after I've implemented it to report my results!
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    How to add a Li-Ion charging circuit to board design

    Hello world! I've currently got a tube headphone amplifier that I built using a 12au7 tube. It's powered by a 12v SLA battery / linear external 12.6v dc supply with a rectifier valve to check the battery when on external. The SLA battery is not performing to what I'd hoped however. I was...
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    RCM 3000 Rabbit Module Test fixture

    Hi, I work with rabbit 3000 modules (AT56C55-UL2T processor/RTL8019AS comm) on a daily basis and I need a better way than I currently have to test them. I'm placing it in programming because I'll need advice in this area to build a test fixture. Currently I place them in operational...
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