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  1. CDRIVE

    Magnet coil help (turns, gauge, for coilgun)

    Vital data above! Bob, there must be something contagious going around. This is twice, in just the last two days, that I failed to read vital data. :( Chris
  2. CDRIVE

    Magnet coil help (turns, gauge, for coilgun)

    Uh, I'll take your word for it. Chris
  3. CDRIVE

    Magnet coil help (turns, gauge, for coilgun)

    Are we going to see you in one of those "It only hurts when I laugh" episodes or maybe one of those "Inside Jail" shows? :rolleyes: Chris
  4. CDRIVE

    Cap charging time

    Ideally it would be near zero but in the real world nothing is going to be zero. Your wire gage, capacitor ESR, switching device transit time and any other resistance in the line are going to be your limiting factors. Chris
  5. CDRIVE

    Voltage Drop

    Study this simple circuit. You will note that there is no common or ground in this circuit. Flip it upside down or rotate it 180°. Nothing changes. Currents are all the same in a series circuit. Voltages and polarities are relative to the two points (nodes) measured. Chris
  6. CDRIVE

    analoge to PWM with a fixed 10 MHZ frequency

    Did you struggle to come up with this title? :rolleyes: What are you going to PWM at 10MHz? Chris
  7. CDRIVE

    Voltage Drop

    I've heard of this. It's called a "ladder schematic". :p Chris
  8. CDRIVE

    Voltage Drop

    Short answer is It doesn't matter which convention is used. The results will be the same. Chris
  9. CDRIVE

    Voltage Drop

    CC, have you researched how that happened? :D Chris
  10. CDRIVE

    For what value of L, will this circuit resonate at 332kHz?

    There are times when I b!tch about people that seemingly post suggestions without reading through the thread. It would appear that I'm now guilty of this myself... SMACK!!!, WHACK, WHACK!! There, I just whacked myself. I didn't realize that you have the existing circuit. What duke said is...
  11. CDRIVE

    800W SMSP

    The world we currently occupy has had the bar lowered as to not leave emotional scars on our youth. They're all winners now. It's now so low these kids are constantly tripping over it! :rolleyes: Chris
  12. CDRIVE

    800W SMSP

    There's the problem. Forum rules forbid us from doing students assignments, theses, etc. On the other hand there's nothing stopping you from making use of Google. Chris
  13. CDRIVE

    Time Delay circuit

    What's the supply voltage? Is this a common 20mA LED? Chris
  14. CDRIVE

    800W SMSP

    Has your instructor placed any restrictions on components used? Chris
  15. CDRIVE

    Battery charging regime for low charge rate?

    An Nicad expert I'm not. I do know what keeps them going though, and that's daily use and recharge cycles. They will give years of use when cycled daily. I'm happy to say that I've never heard of them termed as "emergency batteries" because that would be an oxymoron. ;) Chris
  16. CDRIVE

    For what value of L, will this circuit resonate at 332kHz?

    Unfortunately the source impedance and the terminating impedance form a key factor of filter design. Without this data it's impossible to design a bandpass filter. If you can post the complete schematic of the original device we may be able to guesstimate it. It was simulated in Tina by...
  17. CDRIVE

    Need help with strobe circuit

    Getting started with micros the painless way. One Picaxe 08M2 will flash your LEDs and do the Tango for you. The free .pdf documentation is nothing short of stellar. A complete nube can code 2 LEDs independently flashing in less than 30 minutes of reading time. The programming editor has a built...
  18. CDRIVE

    component for Serial data

    You're welcome. Enjoy the learning! Chris
  19. CDRIVE

    differential op amp to measure current

    I deleted my first reply before I posted it because I had so many questions that I was confusing myself! This is because this topic and your last one are definitely related. They both share a common fault though. Extremely pertinent information is being disseminated in dribs and drabs like a...
  20. CDRIVE

    Need help with strobe circuit

    Wow, another Kris Blue original! I think I'll call it "CircuitusCleverusMaximus". ;) Kool Suff! Chris
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