Recent content by johndeverill

  1. johndeverill

    re-wiring to use batteries???

    Hi Ante, Yup it worked OK connected to the PC. The circuit below is a bit simplistic but is colour coded as per the PC molex connectors.
  2. johndeverill

    re-wiring to use batteries???

    Hi all, There is probably a very straightforward answer to this so you will have to excuse my ignorance. I have a PC fan controller that I want to run on batteries. It came with the standard 12v,-ve,-ve,5v molex connector. I connected the 12v wire to a 12v battery pack +ve. I then connected...
  3. johndeverill

    Pressure switch output??

    Hi Ed, That's great. Ill give it a try. Many Thanks John
  4. johndeverill

    Pressure switch output??

    Hi Ed, AFAIK it's the ISE4B PNP. Cheers John
  5. johndeverill

    Pressure switch output??

    Hi, Here's how it all connected
  6. johndeverill

    Pressure switch output??

    Hi, I have an SMC digital pressure switch. Basically it has three wires +,- and output. I want a 12v solenoid to activate upon reaching a set pressure. This is being used in a car. I connected it all up to the 12v battery. I then connected the output to a multimeter. All seemed fine, no signal...
  7. johndeverill

    Transducer digital output to analogue

    Absolutely fantastic!  :) Cheers guys John
  8. johndeverill

    Transducer digital output to analogue

    Hi MP, That's great. At least I feel I am going in the right direction now. A transistor will have one conection with a varying voltage that acts to switch the circuit won't it? If so, would i then need to pass the differential output of the tranducer to an op-amp and connect that single...
  9. johndeverill

    Transducer digital output to analogue

    Hi Guys, Many thanks for the info. I am very new to electronics so what I may be stating above may seem like a load of gobbledeegook, apologies. What i am trying to build is a pressure display/switch circuit. I have a LDR switch circuit currently and somehow was trying to replace the ldr with...
  10. johndeverill

    Transducer digital output to analogue

    Hi, Sorry PDF was too large to attach so I've attached some zipped images from it if of any help. Thanks John trans.zip
  11. johndeverill

    Transducer digital output to analogue

    I have a trnasducer which outputs a 0-330mV +/- digital signal. I want to transform this to a 0-330mV analogue signal. Can I do this via an op-amp and can anyone give any advice on how to do this? Many Thanks John
  12. johndeverill

    Differential inputs and outputs

    Many thanks Alun, You have been a great help. Regards John
  13. johndeverill

    Differential inputs and outputs

    Hi Alun, Thanks for the confirmation. I suspected it would be nice and easy...for a change! I also want to convert the signal to a uni-polar signal aswell. Am I on the right track by thinking that you would connect the bi-polar to an op-amp? Many Thanks John
  14. johndeverill

    Differential inputs and outputs

    Hi, If you have a transducer with differential outputs can this be connected directly to a panel meter with a differential inputs to measure the output voltage of the transducer? Thanks in advance John
  15. johndeverill

    + and - input/output question

    Hi, If anyone could help on this I would be eternally grateful as it is the last stage prior to my circuit being complete. Essentially I want the output signal/voltage of the tranducer to go to a panel meter. The transducer has a + and a - output connection and reads 330mV full scale output at...
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