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  1. chopnhack

    Designing a Time Delayed Relay

    Ok, I moved the incoming power connectors to the bottom, which required moving the caps too - I don't think that they are in the most ideal location, but I don't think that its a deal breaker either - your thoughts? V.reg and bridge are on back side of board under transformer, power is first pin...
  2. chopnhack

    Designing a Time Delayed Relay

    LOL, ok I take that as I have gone over the deep edge and will get bare copper and worry no more on it! :D Back to layout I go - the clock is ticking and I have to beat Chinese New Year if I am to ever see these boards!!
  3. chopnhack

    Designing a Time Delayed Relay

    Fair enough, I still have to shoehorn it in to the box! ;) So either 16ga or 14ga are acceptable, 14 obviously better than 16. I was reading about tinned multi-strand conductor wire and thought it would be a good idea until I read that tin only has 15% the conductivity of bare copper. Being...
  4. chopnhack

    Designing a Time Delayed Relay

    Agreed, for cost savings I would use whatever wire I order for the monitoring/switching side. The incoming will be 12 gauge from the mains. I thought I would be able to use several smaller wires to "feed" from the 12 gauge to the connector. You have a point though, how would current apportion...
  5. chopnhack

    Dryer not spinning

    Replaced the check switch and machine partially ran - i.e. motor runs, but no water from solenoids when rotating timer through its functions. Further examination found a blown fuse - replaced and machine works as it should. Thanks to all for the help, glad it was not the timer module!
  6. chopnhack

    Designing a Time Delayed Relay

    Kris, would it be a good manner of matching wiring needs for the incoming power to compare circular mill area of the feeder wires (two 12 gauge wires)? 12ga = 6530 circular mill x 2 = 13,060. I was thinking of using six 18ga wires to bring power to the allegro chip, but I noticed the cumulative...
  7. chopnhack

    Designing a Time Delayed Relay

    Thanks Kris - I thought since the circuit wouldn't draw much current I could use the smaller connector, oops! Lol Thanks for the suggestions, I will try to work on them tonight. Can you recommend a small connector for incoming power? Edit: I have seen a 4 pin connector used omitting one pin...
  8. chopnhack

    Designing a Time Delayed Relay

    I think this looks good. I will still need to cleanup the silkscreen layer, but if you think this looks good, I will order the remaining parts and verify physical layout. I couldn't find much information regarding via density and decreased surface area of copper. Should I ask for the via's to be...
  9. chopnhack

    Dryer not spinning

    Maytag was kind enough to label the wires with their terminal locations, so the White wire is actually labelled 9 and goes to the 7th pin location of the connector. (Numbers Indicate Location of Wire in Housing). Can you see the connection between the wire marked BK and WH now? I hope so too...
  10. chopnhack

    Designing a Time Delayed Relay

    Cool, thanks for the clarification. I was thinking that perhaps noise could go onto the ground plane and affect the other pins of the pic if the AC signal carrier wasn't isolated and drawn back to its own ground.
  11. chopnhack

    Designing a Time Delayed Relay

    Thanks Kris, I almost feel like you did go over that before, my apologies! Voltage = potential difference between points!!! I will get that one day ;) There is a lot of area under the transformer - I was thinking of using it in the ground plane, but then thought that there may be some inductance...
  12. chopnhack

    Dryer not spinning

    see the red arrow under "Timer Buss", below the circle with coil in it, the node is marked TM M BK and goes into the connector at position 8 I see your confusion now LOL - sorry - look at the yellow line, it is partially obscuring wire 9 WH. I think you can see how they are connected now.
  13. chopnhack

    Designing a Time Delayed Relay

    @KrisBlueNZ - If the clearance between the Allegro's pads is 23 mil and the minimum slot clearance allowed is 32 mil - is it worth it? I.e. - I can isolate the large pads approaching the pins, however, when they get to those pads, then there is only a 23 mil clearance, so they can not route...
  14. chopnhack

    Voltage regulator circuit now won't regulate

    Interesting, the regulator may be ok then... Ok, keep us posted.
  15. chopnhack

    Voltage regulator circuit now won't regulate

    Are you able to take pictures of the board? There is a good resource on how to post pictures of pcb's to the forum for aiding members. Take a look at it and post some pics. If the output is mimicking the input, then there is either something wrong with the resistance on the adjustment pin or the...
  16. chopnhack

    LTC3810 100V Current Mode Synchronous Switching Regulator Controller

    Hi majdi - for Cin - I would recommend at least 2.5x your input voltage, here is an inexpensive choice: Rubycon 250BXC22MEFC10X16 Your circled resistors don't need to have such a large watt rating - the incoming power is at 90v - 90v/261k ohm = very low watts. Inductors act as resistors as...
  17. chopnhack

    Voltage regulator circuit now won't regulate

    So that's where the sun went :D The LM317 is not the most efficient regulator around, so some voltage drop is to be expected. Edit: - You said that 16v after the buck converter - do you mean at the ouput?
  18. chopnhack

    Voltage regulator circuit now won't regulate

    How many volts was the solar panel producing? Can you read the print on the voltage regulator? Is it a LM317?
  19. chopnhack

    Dryer not spinning

    Check, that is what I did - I had line voltage (120vac) on the wire marked RD which confirmed that the Pull/Push was making contact and had continuity. This is the source of the potential to ground and measured 120vac to neutral (which in this case is the ground center conductor of a three prong...
  20. chopnhack

    Dryer not spinning

    No other cables were loose, however it turned out that the check switch had failed - I guess that is what got zapped when the sparks flew. I jumped node 12 to node 8 (see post #8) and the motor turned on. This ensured me that the timer was functioning (at least partially - i didn't work it...
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