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Thread: Stan_Ham diode driver (analog)

  1. #141
    Join Date
    Jul 2008
    Location
    Rotterdam, Netherlands
    Posts
    789

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    It's nice to see people still working on the board.
    Sadfully i can't help you guys at this moment.

    maybe in the future i will be able to visit the forum more and startup the hobby again...

    it's like pyrotechnics...... the love for the hobby is a virus thats in the gene's

  2. #142
    Join Date
    Jul 2010
    Location
    Germany
    Posts
    197

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    Hello, I am new here. Could someone tell me what this pad is used for?


  3. #143
    Join Date
    Jan 2007
    Location
    Sheepsville, Wales, UK
    Posts
    3,406

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    Look at the first post - its very clear from this info what its for.
    Rob
    If you need to ask the question 'whats so good about a laser' - you won't understand the answer.
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  4. #144
    Join Date
    Jul 2010
    Location
    Germany
    Posts
    197

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    Sorry but I can't find it :/
    I can't find a component which is placed there.. I am a bit confused with that part of the schematic. Any help would be appreciated.

    p.S i am learning electronics on my own for now.

  5. #145
    Join Date
    Aug 2008
    Location
    the hills
    Posts
    983

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    It's the modulation input.

  6. #146
    Join Date
    Jul 2010
    Location
    Germany
    Posts
    197

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    Quote Originally Posted by mophead View Post
    It's the modulation input.
    Which means? Can you also show me which pads are used for the power supply?

  7. #147
    Join Date
    Nov 2007
    Location
    Cairns, Australia
    Posts
    1,896

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    The modulation input is where you put 0-5V, an analog or TTL signal to switch the diode. This is so when you use it in a scanner, you can turn the diode on and off at specific times. To make the driver output something to start with, connect that to 5V.

    The power input connections are infront of the capacitor, the 2 pads.

  8. #148
    Join Date
    Aug 2008
    Location
    the hills
    Posts
    983

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    Look at the 2nd picture in the first post. it shows where everything is located.

    Then look at post #7. Shows one built and ready to go.

  9. #149
    Join Date
    Jul 2008
    Location
    Rotterdam, Netherlands
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    789

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    Quote Originally Posted by mophead View Post
    It's the modulation input.
    Thats correct!!!!

  10. #150
    Join Date
    Jul 2010
    Location
    Germany
    Posts
    197

    Default

    Thanks, I understand where everything is connected. And the monitor pads are for checking the current flowing in the driver?

    @ mophead, from what I have read, that ready circuit is not exact as the one described in the first post. I saw a component was replaced. Am I wrong?

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