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Recent content by 761TJ

  1. 761TJ

    12 volt to 240 inverter with 10-25% duty cycle

    Greater photon density and longer lifetime of source.
  2. 761TJ

    12 volt to 240 inverter with 10-25% duty cycle

    Is there some reason you must have a specific pulse shape? It works very well. Much better than other waveforms or DC.
  3. 761TJ

    12 volt to 240 inverter with 10-25% duty cycle

    IR emmiter I need 240 Volts for 1.25mS @120Hz and 0volts for 7.1mS 12 volt battery is all I have avaiable to me in this remote location. Ed
  4. 761TJ

    12 volt to 240 inverter with 10-25% duty cycle

    Descriptively I guess I want a pulsed dc output. I can get what I want from my HP signal generator. I set it for 6oHz, square wave, 10 volts P-P, and it puts out a symmetric square wave and indicates a 50% duty cycle. I then select the variable duty cycle mode and reduce it to 15%. I can then...
  5. 761TJ

    12 volt to 240 inverter with 10-25% duty cycle

    I am using 50% as the standard square wave, which can be observed on a scope, 50% positive saturation 50% negative saturation or 50% on 50% off. I want a pulse on (240V) for 15% of the time and off (0V) for 85% of the time and I want the efficiency of an inverter. Higher frequency 120Hz=...
  6. 761TJ

    12 volt to 240 inverter with 10-25% duty cycle

    I would buy one if I could find one. The reduced duty cycle is very important but commercial units are all 50% duty cycle for obvious reasons.
  7. 761TJ

    12 volt to 240 inverter with 10-25% duty cycle

    I am looking for help designing a 12V dc to 240v AC 60 or 120 Hz 1000W inverter whose duty cycle is only about 10-25%. The load is purely resistive. Ed
  8. 761TJ

    Second piston controlled valving

    Thanks Terry that is what I am looking for.
  9. 761TJ

    Second piston controlled valving

    I saw a video of an engine on a motorcycle that used a piston in the cylinder head as the valving. Excellent torque. Anyone know what I am refering to? Thanks, Ed
  10. 761TJ

    Peak Cylinder Pressures

    Anyone have any experience with HCCI peak pressures? Ed
  11. 761TJ

    Increasing coeff of friction on wet steel

    I need to increase the coefficient of friction of wet steel on steel temporarily. I am looking at the application of a tackifier resin emulsion. Ed
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