91xr7
Junior Member
Posts: 51
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Post by 91xr7 on Dec 1, 2014 7:11:57 GMT -8
I Can't Edit your drawing because my old program won't work on this computer. But there is a Better way. Also not sure Why you would use a 330 Ohm resistor & 200 Ohm Pot. (Low Resistance and considerable Current flow.) Yes these computer were and are Both Legal. And Yes this new one is Windows 7 Pro. But the old one is Now in the Recycle depot. Hopefully I can find a Descent & Free Graphic Editor program. there is always MSpaint Now for the resistance choices, I was just trying to match what was already there on the sense side? Also i used a 2.5K pot, but the adjustment was so coarse it wasn't funny. Yes i could i guess use both the 2.5K to get into the "ball park" then fine tune with the 200ohm pot, But i'm also trying to keep this circuit as simple as possible. the 330ohm resister is the same thing, gave the voltage range i needed to work with the 200 ohm pot Would adding say a 5-10K resistor on either side be something that i should do to increase the resistance and lower the current flow? while keeping the Pot and other resistor there (Or just on resistor on the High side and something that'll make the Low side close?
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91xr7
Junior Member
Posts: 51
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Post by 91xr7 on Dec 1, 2014 7:12:46 GMT -8
Have you done a search online for windows 7 Compatibility mode?
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Post by lamazoid on Dec 1, 2014 12:21:15 GMT -8
How do you get to Compatibility Mode? by right-click on app *.exe (or a shortcut to it), and there will be a choice "compatibility" (or maybe slightly different, i dont know exact name in English window$) typically its 3rd choice, first two are "Open" and "Run as administrator" and then just follow the master.
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Post by Gary Lecomte on Dec 1, 2014 13:36:36 GMT -8
No app.exe
I Downloaded and Installed the Microsoft XP Compatibility Program from the Internet, But Still no success.
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91xr7
Junior Member
Posts: 51
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Post by 91xr7 on Dec 1, 2014 14:59:34 GMT -8
I think you miss understood what he meant Just before you click on the file/icon (Program) that you want to start, you right click on it first then select compatibility mode:)
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Post by lamazoid on Dec 2, 2014 5:03:01 GMT -8
I think you miss understood what he meant Just before you click on the file/icon (Program) that you want to start, you right click on it first then select compatibility mode:) yes, exactly !
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91xr7
Junior Member
Posts: 51
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Post by 91xr7 on Dec 2, 2014 14:45:49 GMT -8
Yike has this thread been hyjacked or what?!?!? gary i say see if you can change the boot order in the Bios of you computer and see if you can get the HD that had windows XP on it up and running, it should work if nothing is corrupted on the HD.
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Post by Gary Lecomte on Dec 3, 2014 7:59:23 GMT -8
Nothing I do seems to work.
I also Downloaded Microsoft's Compatability Software for Windows XP in windows 7, but it screwed up my computer so it wouldn't restart. Got it fixed again, but I GIVE UP on doing this.
I'll try to find another program.
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Post by Gary Lecomte on Dec 3, 2014 15:29:40 GMT -8
Something like this would work better and More Stable. The Lower Pot should adjust a Center Range
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91xr7
Junior Member
Posts: 51
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Post by 91xr7 on Dec 4, 2014 10:42:43 GMT -8
Nothing I do seems to work. I also Downloaded Microsoft's Compatability Software for Windows XP in windows 7, but it screwed up my computer so it wouldn't restart. Got it fixed again, but I GIVE UP on doing this. I'll try to find another program. Did you try booting from the XP hard drive? Yes a royal PITA but if you have a Data drive (like any normal same person ) you'll be able to access the files from both OSes : And don't become like me with electronics and give up
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91xr7
Junior Member
Posts: 51
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Post by 91xr7 on Dec 4, 2014 10:45:26 GMT -8
Something like this would work better and More Stable. The Lower Pot should adjust a Center Range View AttachmentSeem like the input and output of the voltage regulator is only seperate by a 1K resistor? Think you can explain? Also should the high side (positive) be tied directly to pin 3 ?
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Post by Gary Lecomte on Dec 4, 2014 12:57:05 GMT -8
Something like this would work better and More Stable. The Lower Pot should adjust a Center Range View AttachmentSeem like the input and output of the voltage regulator is only seperate by a 1K resistor? Think you can explain? Also should the high side (positive) be tied directly to pin 3 ? SORRY, SEE CORRECTED CIRCUIT ABOVE.
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91xr7
Junior Member
Posts: 51
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Post by 91xr7 on Dec 4, 2014 14:33:15 GMT -8
Seem like the input and output of the voltage regulator is only separate by a 1K resistor? Think you can explain? Also should the high side (positive) be tied directly to pin 3 ? SORRY, SEE CORRECTED CIRCUIT ABOVE.It's all good. no worries. Now as the one "chart" i posted previously, the voltage that is being sensed by the LM311 via voltage divider created by the gauge and temperature sensor (thermistor) changes depending on the input voltage at the gauge end. So would regulating the Reference be a negative thing? Since there won't be any compensation for the voltage swing that will be happening. Now if the different is only a few degrees (+/- @3-4'C) then it should be okay, since this isn't a "safety" device by the stretch of any imagination PS. So using MSpaint?
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91xr7
Junior Member
Posts: 51
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Post by 91xr7 on Dec 5, 2014 22:41:35 GMT -8
My current revision of the schematic, Reversed a few things and add a transistor. So far no resistor on the base of the slightly over kill transistor (Thinking an swapping out for 2n3904) Scan3 by 91XR7, on Flickr The whole hysteresis i think still needs a bit of tweaking thou. Also thinking of a 100uf power supply cap, a 15V Zener diode, 0.1uf ceramic bypass cap, do try to protect it some. Sadly the smallest fuse i have on hand is 1amp
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Post by Gary Lecomte on Dec 6, 2014 7:14:04 GMT -8
Why a 15 Volt Zener?
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