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Recent content by GoKid

  1. GoKid

    infrared conducting epoxy

    Can you recommend a brand...something you trust or have worked with?
  2. GoKid

    infrared conducting epoxy

    700-890nm...
  3. GoKid

    infrared conducting epoxy

    Sorry - 700nm +
  4. GoKid

    infrared conducting epoxy

    Does anyone know where to obtain transparent infrared conducting epoxy/substrates to "paint" on materials?
  5. GoKid

    materials

    My goal is to have a dual plane grid of IR conductors spaced 1mm apart, that you can essentially see through. I want to scan both glass edges (x glass and y glass) and calculate via signal processing the cartesian coordinates of an infrared beam striking the glass. I don't have aproblem with the...
  6. GoKid

    materials

    Is anyone familiar with how to produce virtually transparent laticework of infrared conducting material on a 14" by 14" glass sheet for example? Are there clear infrared epoxies available?
  7. GoKid

    LT1264 and charge pump IC as supply

    I was using a transformer based -5 supply to the LT1264 Bandpass filter without a problem until I tried using Microchip TC962 negative charge pump for the same negative supply instead of the transformer. The TC962 has 80ma output LT1264=23ma, max. Any conceptual blunders in trying this approach?
  8. GoKid

    ultrasonic transmitter cable

    Its a single 40KHz wave repeated every 10ms.
  9. GoKid

    ultrasonic transmitter cable

    Current source to transducer is only 0.4a. Transducer can't draw more than what's available. Sounds like I am making an ultrasonic weapon more than a transmitter by your concern. I will ponder your concerns. Thanks for both replies. GoKid!
  10. GoKid

    ultrasonic transmitter cable

    Hi folks, I want to send 150v 0.4amp to a remote ultrasonic transducer that has 200 ohm impedance. The NPN driving ciruitry will be about 3-4' from the transducer housing. Digital circuitry will be nearby. What specific brand name/type cable would one recommend - it may bump or rub up against...
  11. GoKid

    seperating sensor from circuitry

    Thanks to all -
  12. GoKid

    seperating sensor from circuitry

    Ok, thats a start, thanks. Do I also need any line drivers/amps to reduce signal attentuation to the receiver circuitry from the receiver transducer? Even without a line in between the signal is in the millivolt to microvolt region. GoKid!
  13. GoKid

    seperating sensor from circuitry

    Hi folks, I want to drive ultrasonic transducers at 40KHz 3-4 feet away from the transducer drive circuitry itself- is this possible with twisted pair wires? Like-wise I would like to seperate the transducer receivers from their reciver circuitry by about 3 feet and keep the several receiver...
  14. GoKid

    can turn on 1 FET but not another

    I am driving a transducer with a 200ohm load resistor connected to the push-pull output. Are you suggesting that getting a converter with a higher output amperage may solve the problem? That would make sense as other lower voltage higher amp sources have worked while this one doesn't.
  15. GoKid

    can turn on 1 FET but not another

    I corrected my drawing per Zeitghosts comment, it wasn't actually connected that way. Benta I will look into those dedicated drivers to strengthen my design. Replacing the P channel 9630 with an IRF9640 and the circuit above began working (bad FET?). I used a 9v battery test source for the...
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