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Thread: SSG Monopole with Capacitor Discharge

  1. #11

    Just to clarify so you use 1 resistor for the opto and the LED?

    Thanks JohnK

    Will give it a go.

    Just to clarify so you use 1 resistor for the opto and the LED?

    On the attached schematic, the resistor in question is 2.2K ohm, that is quite a leap from 300 ohm, any ideas?


    Theunis
    Attached Images Attached Images

  2. #12
    Theunis,

    this is JB's op amp Sch charging a 36V battery bank. and was running at a full 15V on the op amp.....

    so with a 12V battery bank, the op amp is not going to run at a full 15V, Depending on what voltage the OP Amp is running at, start with a 680 ohm and go down from there, till you get a fully on pulse from the Cap pulser circuit with the largest value of resistor, this will make the op amp circuit pull the least amount of current that you can get away with to fire the cap pulser fully on....... Your LED can be in series with the OPTO LED and the resistor......



    Quote Originally Posted by Prinsloo View Post
    Thanks JohnK

    Will give it a go.

    Just to clarify so you use 1 resistor for the opto and the LED?

    On the attached schematic, the resistor in question is 2.2K ohm, that is quite a leap from 300 ohm, any ideas?


    Theunis
    Last edited by RS_; 12-27-2012 at 08:35 AM.

  3. #13
    @ RS

    I have sent you a PM

    Thanks

    Theunis

  4. #14
    Question?

    Is there any way to get these post with out coming to this web page to read them?

    All I get is a Email that tells me that there has been a post made.

    It would be nice to have the post being sent to me by email, is that posible?

    Do you have the same thing in that you have to come on line to read them?

    I hope you can help me in this.
    Ron Hammar
    Rlhammar@gmail.com

  5. #15
    Senior Member Tom C's Avatar
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    Quote Originally Posted by Ron Hammar View Post
    Question?

    Is there any way to get these post with out coming to this web page to read them?

    All I get is a Email that tells me that there has been a post made.

    It would be nice to have the post being sent to me by email, is that posible?

    Do you have the same thing in that you have to come on line to read them?

    I hope you can help me in this.
    Ron Hammar
    Rlhammar@gmail.com
    I come online to read them all.

    Tom C


    experimental Kits, chargers and solar trackers

  6. #16
    Ron,
    What type phone do you have?
    K

  7. #17
    Kevin,

    I have a Wireless dish set up to get on the internet and do not use the phone.

    Ron

  8. #18

    Trouble reading foggy pic

    Hi RS and all,

    The cap pulser cct w/ Comparator trigger is very hard for me to make out the details.

    Can we get a better resolution for this one.

    Also snag 324 is a little difficult also.

    I've been hoping for the comparator trg cct so am anxious to see it clearly.

    Thanks for being here and for all the great help that is being offered.

    Donald

  9. #19
    Hi Donald

    I did get snag 324 working with some help and component changes,

    (sorry I have very little experience in electronics, so anybody please feel free to chime in, maybe I did it wrong so any advice will be appreciated as well !)

    Change:
    R32 and R33 change to 4.7K or bigger (47R started smoking after a while)
    C3 to 100uF
    You need to swap the 2 pins, inverting and the non inverting pins on the LM741,

    the rest works fine, depending what caps sizes you are dumping make sure you have heavy Mosfets.

    Theunis
    Last edited by Prinsloo; 01-24-2013 at 12:40 PM.
    Hey !
    WHAT HAVE YOU DONE WITH THE PORTION OF SOLAR ENERGY THAT WAS ALLOCATED TO YOU TODAY? !
    JUST THINK ABOUT IT . . .

  10. #20
    Hi RS and all,

    I have 7 power strand SSG running that was built according to the intermediate manual. Matched components.

    I etched the camp dump circuit that is in the same manual and have been running it with 2, 15,000uF caps.

    It has a 555timer and a voltage regulator to power switching of mosfet. The VR is powered off the caps. and the opto side is powered off the input. I've run it with FWBR and with just an added diode into the POS of the caps. Havn't decided which way is better.

    I'm going to etched it again with a separate hand wired section for the caps and fets.

    Charging lawn and tractor batt.

    The caps will over fill in about 2 seconds to 70v so I have to be careful.

    Can get a 2.6A pulse at about 30v iin a little less than a sec per pulse.

    I tune the pulse by watching the cap voltage and the pulse amperage.

    Batts are not charging very well. Could be bad batts.

    The vertical peak of the h wave climbs between pulses.

    On a dual trace shot it looks like the pulse which triggers downward on my scope, is driving the vertical peak down.

    The wide traces on my etched board for the cap pulser, are blowing out. These traces that are connected directly to the caps.

    Any insights as to why my batts are not charging very well?

    Thanks for being here,

    bro d

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