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    NiMh cells - can I 'float' charge?

    simple nicad float charge circuit That's always been my major concern as well, but the problem still stands; I only have limited space in which to fit the cells and associated charging/control circuitry, and cost is also an issue. I think it might be necessary to conduct some trials to see...
  2. E

    NiMh cells - can I 'float' charge?

    nimh float capacity ups Iggyboy, A constant current charger shouldn't be a problem, I could make up something compact enough based around an LM317 and a few other components. I'll have to check the datasheets for the batteries I'm looking at using, but as a general conservative rule, what...
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    NiMh cells - can I 'float' charge?

    float charge lithium ion Thanks for the heaps of information. I should have mentioned that the application is for standby use, the circuit is basically a DC output UPS. While I know its acceptable to float charge a lead acid battery with a constant voltage with no need to terminate the charge...
  4. E

    NiMh cells - can I 'float' charge?

    nimh float charge Hi all. I have an application where I need to construct a DC power supply with battery backup. My initial intention was to use lead acid cells for the backup, but there is very limited space available inside the enclosure the circuit will be mounted in which rules this out...
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    Serial output from PIC - looking for resources

    Thanks for the advice, i'll take a look into it. In the meantime, i'm still open to any ideas. Many thanks, Matthew
  6. E

    Serial output from PIC - looking for resources

    vb6 serialoutput byte I'm currently designing a computer serial port interface using PIC BASIC and the 16F84A microcontroller. I have outputs all figured out, but I would also link to be able to input to the computer from the PIC. Of course I will be using the rx pin on the serial port for...

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