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  • Donald Haas
    replied
    Originally posted by Michael John Nunnerley View Post
    Just incase you have no load on output of your fet, will not work, you have to load the fet. Hope that is the problem

    Mike
    Hi Mike

    Circuit is working .......... lighting lights and running motors.

    bro d

    Leave a comment:


  • Michael John Nunnerley
    replied
    need load

    Originally posted by Donald Haas View Post
    Hi All,

    Been working with a PWM circuit that has the following:

    UFO Voltage Regulator -PS=coil pulse batt 24v

    555/393 adj freq/duty%-PS=voltage rugulator

    JS 555 driver-PS=adj PSU from wall - 15v

    two mosfets-PS=24v batt

    I can get a clean scope shot from the driver when it is not hooked to fets,

    But cannot get a clean (normal sq wave) when fets are hooked.

    The scope and the adj PSU are on the same wall circuit.

    Grounding issues?

    I have the 1000uF cap accross batt but very close to the fets and coil (soldered directly to both)

    Circuit is working well. No heat problems and easily controlled input amperage..

    Did a demo for a friend.

    I've tried the neg scope probe clip at every ground connection.

    Maybe someone can help me understand grounding hookup.

    Thanks,

    bro d
    Just incase you have no load on output of your fet, will not work, you have to load the fet. Hope that is the problem

    Mike

    Leave a comment:


  • Donald Haas
    replied
    Clean scope shot?

    Hi All,

    Been working with a PWM circuit that has the following:

    UFO Voltage Regulator -PS=coil pulse batt 24v

    555/393 adj freq/duty%-PS=voltage rugulator

    JS 555 driver-PS=adj PSU from wall - 15v

    two mosfets-PS=24v batt

    I can get a clean scope shot from the driver when it is not hooked to fets,

    But cannot get a clean (normal sq wave) when fets are hooked.

    The scope and the adj PSU are on the same wall circuit.

    Grounding issues?

    I have the 1000uF cap accross batt but very close to the fets and coil (soldered directly to both)

    Circuit is working well. No heat problems and easily controlled input amperage..

    Did a demo for a friend.

    I've tried the neg scope probe clip at every ground connection.

    Maybe someone can help me understand grounding hookup.

    Thanks,

    bro d

    Leave a comment:


  • prochiro
    replied
    Donald
    Glad you see the light. As a solid 12.5 volts should be hitting fet base it should work fine. John S. has said that just a little more might be good as it helps the fet open and close fully and sharper. Keep doing this and playing with it until you own it in your mind.
    Dana

    Leave a comment:


  • Donald Haas
    replied
    555 fet driver

    Originally posted by Donald Haas View Post
    Thanks Dana,
    I'll be doing JohnStone's 555 driver and sending the square wave from your circuit to it. How much voltage should the sq wave to the 555 driver be.

    I see a separate PS of 12v for the driver. Don't want a conflict.

    Also, what's best for a parallel bifilar coil (turns and wire size)?

    Thanks,

    bro d
    Hi Dana and all,

    I just tried JohnStone's 555 timer fet driver.
    It scopes vertical ons and offs at every frequency that I tried.

    I gave me many more frequency and duty cycle combo's that "lit the light".

    Thankyou Mr Stone!

    I just went with the output pwm that I have been working with into the driver.

    Time to build a keeper.

    bro d


    bro d

    Leave a comment:


  • Donald Haas
    replied
    PWM to driver voltage?

    Originally posted by prochiro View Post
    Donald
    13.5 is enough to run the primary part of the circuit. Actually less voltage will also do at first part. How the other voltages are ramped up is 12V is injected into the output square wave signal using a 1K resistor before the fet driver. At the fet driver, 12,24 or 36 volts is input directly to fet input. ????? Do you understand ????? See John Stones circuit for example and set up fet driver like this for starters. He has a new driver design you should use later. With that many fet you should drive many lights. It only takes one to do the job of one light. Good work so far and keep reading and doing research.
    Dana
    Thanks Dana,
    I'll be doing JohnStone's 555 driver and sending the square wave from your circuit to it. How much voltage should the sq wave to the 555 driver be.

    I see a separate PS of 12v for the driver. Don't want a conflict.

    Also, what's best for a parallel bifilar coil (turns and wire size)?

    Thanks,

    bro d

    Leave a comment:


  • Cornboy 555
    replied
    Me Too.

    Originally posted by Donald Haas View Post
    Hi Cornboy,

    I'll give my wife and her creator all the credit.

    She's almost 20 yrs younger and I'm retrired as of 2011.

    She is very quiet and gentle like a peaceful mother hen.

    Our youngest is 4 so it's still like living in a nursury school.

    I'm the only problem child but there's hope.

    bro d

    Yeh, i'm like a naughty big kid too.

    Regards Cornboy.

    Leave a comment:


  • Donald Haas
    replied
    Retiree with young wife

    Originally posted by Cornboy 555 View Post
    Hello Donald, ten Kids is more than a full time job just on it's own, how you find the time to do extra is a credit to you and your wife.

    Warm Regards Cornboy.
    Hi Cornboy,

    I'll give my wife and her creator all the credit.

    She's almost 20 yrs younger and I'm retrired as of 2011.

    She is very quiet and gentle like a peaceful mother hen.

    Our youngest is 4 so it's still like living in a nursury school.

    I'm the only problem child but there's hope.

    bro d

    Leave a comment:


  • Cornboy 555
    replied
    10 KIDS, What.

    Originally posted by Donald Haas View Post
    Hi All,

    Dana helped me with a solid basic circuit and now I've added UFO's voltage regulator and have it running with 5 mosfets.

    The slightest change requires new tuning.

    I'm getting 13.7v from regulator but it seems that it drops too much for 6 mosfets with 330ohm gate R's so I'll try a little more voltage from regulator or a little less resistance on gates.

    At present all is bread boarded except the mosfets are on a AL angle iron.

    I'm surprised at the heat in the mosfets at 36v.

    Full brightnes with cfl at about .3a.

    Are we recovering from yesterday's proceedings. (Dec 25) My wife and 10 kids plus the cat are coming along fine.

    bro d


    Hello Donald, ten Kids is more than a full time job just on it's own, how you find the time to do extra is a credit to you and your wife.

    Warm Regards Cornboy.

    Leave a comment:


  • prochiro
    replied
    Donald
    13.5 is enough to run the primary part of the circuit. Actually less voltage will also do at first part. How the other voltages are ramped up is 12V is injected into the output square wave signal using a 1K resistor before the fet driver. At the fet driver, 12,24 or 36 volts is input directly to fet input. ????? Do you understand ????? See John Stones circuit for example and set up fet driver like this for starters. He has a new driver design you should use later. With that many fet you should drive many lights. It only takes one to do the job of one light. Good work so far and keep reading and doing research.
    Dana

    Leave a comment:


  • Donald Haas
    replied
    Through the paces

    Hi All,

    Dana helped me with a solid basic circuit and now I've added UFO's voltage regulator and have it running with 5 mosfets.

    The slightest change requires new tuning.

    I'm getting 13.7v from regulator but it seems that it drops too much for 6 mosfets with 330ohm gate R's so I'll try a little more voltage from regulator or a little less resistance on gates.

    At present all is bread boarded except the mosfets are on a AL angle iron.

    I'm surprised at the heat in the mosfets at 36v.

    Full brightnes with cfl at about .3a.

    Are we recovering from yesterday's proceedings. (Dec 25) My wife and 10 kids plus the cat are coming along fine.

    bro d

    Leave a comment:


  • iflewmyown
    replied
    Thanks for this.
    Garry

    Leave a comment:


  • prochiro
    replied
    arduino

    @ All
    This is not a promotion for arduino, but on youtube there is a guy named jeremy that has 15 videos about learning electronic basics thru advanced work with the arduino as an aid. He is good and a beginner can learn the basics of what we are working on there. If you are also interested and ever want to try arduino I would suggest the new Leonardo. Just watch the videos and learn.
    Dana

    Here is the first one of 15.


    Tutorial 01 for Arduino: Getting Acquainted with Arduino - YouTube

    Leave a comment:


  • Donald Haas
    replied
    ebay power supply

    Cherokee international CAR4030L1 48v 80 amp power supply

    starting bid $100

    Leave a comment:


  • Ufopolitics
    replied
    Same as above post...

    Originally posted by sawa25 View Post
    Thanks! photogallery make an impression.
    but which one the circuit (to try) where you deep in to water fluorescent lamp? want to start with it,or this is wrong first step?
    as for your Pulse Wave Modulator circuit-not sure- where to connect lamp
    and where to connect coil, and wether it is for that?(on PatricK site Chapter3 page 3-134 there is one with lamp similar to PWM,but differences confuse me,because i am much far from profi in this
    exuse for oftop: seems very important your remark, about lure RE: condition when it manifest itself(doing work) not the same that make it to begin, so we should tune the starting and continuating processes Probably because of this i don't know one, who get sucсess in replicating Don Smith(the most popular board of his devices), no way to tune for startup .(not sure i correct say in English what i want . )
    Hello Sawa,

    Please read my above post to Warren...is there...and yes it is that one the circuit I use to go on water...
    And yes, that is a better way to start this Race to Free Energy...

    The Circuit Output (Drain Negative and Source Positive) goes to Coil...One Ohm or more total resistance...18 gauge...parallel bifilar better if possible...BUT Diodes NTE576/UF505 MUST be connected there...it is above in a correction from a member here...a couple of pages back...please guys read!...like I said before...it is ALL HERE!!

    I really have very limited Time...and I hate not to answer to ALL of you...so you may think that I am rude and ignoring you...BUT it is really disappointing when I keep reading that you keep asking questions that I KNOW are ALL HERE!!


    Just because I have written most of them...

    So please...help me...by reading carefully all pages in the past...learn how to FILTER NOISE...and NOT to pay attention to Garbage also written here...learn to discern the great from the bad data...the wrong attitude Posts, ignore them...even though, and sometimes they attract reading them...but THEN...You get behind in progress and evolution Time...



    Thanks again and Regards


    Ufopolitics
    Last edited by Ufopolitics; 12-20-2012, 06:54 PM.

    Leave a comment:

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