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  1. Fish4Fun

    AC circuit and PCB design questions

    sgraves66, I think relays for turning lights on/off and one or two "special purpose high-current" SSRs might make more sense than building 10 high current SSRs to handle X * < 1A loads and only using one or two for >10A loads...but that's just me....Unless you are driving inductive loads, I...
  2. Fish4Fun

    Constant current regulation with boost converter, PWM and 555 timer.

    AlgoJerViA, If the purpose of the project is learning and the venue is "hobby", then BY ALL MEANS lets work this out...if you just need a driver the link you sent for $11 (not sure what the cost to your country would be...) sounds like a "deal" to me...There are other drivers available from...
  3. Fish4Fun

    Constant current regulation with boost converter, PWM and 555 timer.

    Hi AlgoJerVia! Welcome to EP! What *Steve* said, but a couple of other things too.... First, a 100W LED driven by a buck-converter and a 12V source suggests the Vf of the LED should be << 9V and this in-turn implies the current will be >10A....not really a chore for a buck converter.... Next...
  4. Fish4Fun

    Alternative Energy.....

    @chopnhack....I agree about avoiding politics out and opinion to a bare minimum....not sure I agree about attempting to help people learn to view energy differently...but that is the point of THIS thread....I think a sticky should represent what the majority of members think/feel so as we flesh...
  5. Fish4Fun

    AC circuit and PCB design questions

    For turning lights on/off this SSR module is WAY overkill...it is designed to turn things like your STOVE on/off.....I honestly would press the "EASY BUTTON"....==>...
  6. Fish4Fun

    Alternative Energy.....

    @chopnhack....Thanks! And yes, I have NO DOUBT I could create a resource oriented post on Alternative Energy...but that would just be my thoughts, not necessarily representative of the majority of contributing forum members who get the opportunity to wade through 10 unrealistic AE posts a...
  7. Fish4Fun

    li-ion 3.5v inductive charging circuit

    Hey Sheldon! Welcome to EP! Hrmmm, where to start.....let's start with "inductive charger"....this is not really the right way to think about/discuss a charge controller, though I suppose it could be argued that many charge controllers use either an inductor or its first cousin a...
  8. Fish4Fun

    Alternative Energy.....

    @kris....Ahhhhhh, IC....so you think he thought I couldn't think? LMAO! It is all good, I was in-fact talking about Alternative Energy....Solar Panels/Collectors, Wind Turbines, Geothermal, Hydro etc...but 95% of the AE posts I see here and elsewhere involve Solar PV panels and far too many of...
  9. Fish4Fun

    -1kV pulse generator

    Hi Oseania, Welcome to EP! 1kV is not going to get a lot of corona discharge unless the gap is really short.....ignition coils are fairly robust/cheap/easy....if you assume a V8 has 4 ignition cycles per revolution and that most V8's are capable of at least 6,000RPM, this would suggest that...
  10. Fish4Fun

    Alternative Energy.....

    @ Harold....LMFAO...rut-rho elroy.what'd I do now.....? I was just thinking it might be easier to point people to a sticky rather than muddle through individual responses...or ignore them till they went away.....didn't mean to kick a hornet's nest..... Fish
  11. Fish4Fun

    LED Circuit

    1) "High Intensity LEDs" can mean anything from 30mA//20mW to 1A/12W.....so you need to define how much light you require first.....Ebay-China is a good source for cheap LEDs.... 2) See # 3 3) ****NOTE**** I did these calculations based on 4 R44 Batteries....Adjust for 3 as you see fit******...
  12. Fish4Fun

    Alternative Energy.....

    AE (Alternative Energy) seems to be @ the forefront of everyone's mind, so perhaps there should be a "sticky" thread that covers some of the basics....With this in mind, let's use this thread to "hash out" some of the common misconceptions, problems and "answers" to some of the more common...
  13. Fish4Fun

    Hybrid Solar Inverter

    Kipon Mor, Welcome to EP! Hrmm, from your configuration it would appear your purpose is to create a UPS (Uninterruptible Power Supply) with "solar charging back-up", but from your description you currently have a 1600VA 240V Battery Charger OR a 1600VA 24Vdc Input 240Vac output...
  14. Fish4Fun

    refresh rate for dot matrix

    Jigar Patel, Welcome to EP! Graphics is certainly not my strong suit, but I have a grasp on some of the basics....First question involves the uC.....does it have other tasks, or is it dedicated solely to the display? Next, is this display a "per-fabricated Display"....if so, link to a...
  15. Fish4Fun

    H-bridge 12v DC motor

    devatu, At the risk of over-simplifying your project, are relays an option? I know they aren't really popular with the savvy electronics crowd, but sometimes they are still a best-fit solution.....I mean who doesn't love a high tech H-Bridge with synchronous rectification, Active Power Factor...
  16. Fish4Fun

    IR2110 Mosfet Driver Capacitance Question

    Thanks Kris! I was 99% sure.....but I have let a lot of smoke out of perfectly good components when I was 99.99% sure ;-) The PCB is fully assembled...waiting patiently on my bench, but haven't had time to play with it yet......I will post back with results when I get a day to play... Fish
  17. Fish4Fun

    Old music centre to audio amplifier

    Edgars.....wow....this is going to be a lot of work to achieve music from a PC......fairly nice, brand new, "plug-n-play" powered speakers from a store can be purchased for << $20.....are you sure you really want to go down this path? If you want to learn about audio amplifiers there are tons...
  18. Fish4Fun

    New Bluetooth Project, NEED HELP!

    Hey Monty, welcome to EP! I think you might be in "over your head'. It sounds like what you are looking for is a solution, not a project....Bluetooth 4.0 is a "standard" communications protocol....from the "standard's point-of-view" it is your project's responsibility to comply with the...
  19. Fish4Fun

    IR2110 Mosfet Driver Capacitance Question

    Actually I have one more question about the (very standard circuit) that has been troubling me for quite some time.....in the numerous application notes, data sheets and example circuits I have seen there is a great deal of discussion about the boot strap capacitors, but nowhere have I ever...
  20. Fish4Fun

    IR2110 Mosfet Driver Capacitance Question

    Arouse/Kris.... Thank you for the input. @Arouse....In Fairchild's Application Note AN-6076...
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