Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Thanks Jim B.
March 31 2025 UpDate, Had to replace the 350 Prototype 2 it would intermittently over charge, I removed it and may have fixed it could have been an internal short between the Mosfet Gate and D+. I don't think it blew anything up. for for now it's off the car replaced with a 393i...
August 2022 UpDate, The 350e prototype1 updated design on the regulator housing with the 9mm spade lugs has been fine on the car for a year now however the other day I went driving back up in the mountains on some logging roads and was running with the headlights on and climbing in 1st gear for...
I think it would be best to stick with the original Auto-LiteThe VRR4005A on the Positive Ground Systems. about $60 on ebay. Perhaps https://cloversystems.designscience.info/products/legacy-products/dr340/ has something.
Interesting the input to the Comparator input configuration in his Fig 2 is Just how I finally arived at as a simple configuration, Some Comparators can't handle it though!
Alarm Circuit installed November 2019:
The Alarm Circuit has proven it's self and saved overcharging several times with the various failures including the last one caused by a failure of the 6.8 Volt Voltage Reference diode. There have been Zero problems since with anything.
It's Been over 2...
Yep I did volts got to multiply X 35 amps again for watts! I have been thinking mOhms was Power of -6, I should check this. But the FDP025N06 could handle it.
Ok Your right so using the FDP025N06 with just 2.6m ohms would be 2.6/1000 = .0026 ohms at 35 amps which would be .091 volts and that X...
It's probably not considered a logic level FET, that is correct. However I have tested it and some others like trench HD FET's etc and 5 volts is plenty to get enough saturation that they won't heat up. For example a fet at 60 milli ohms (Source to Drain) will only generate 35amps X 0.000060...
The BC109 Transistor could drive a 70 ohm relay but maybe can't handle just any kind directly, nor could other CMOS Logic components. When I need a high gain transistor to drive something drawing several amps, I go to the 2N3055(npn) or the 2N2955(pnp) (Total Over Kill Though) also power N...
I think the Auto Parts Stores carry those "Engine Cooling Fan Modules" Depends on the year of the car. Cars in the 80-90's just used a couple of relays and big heat sinked in line resistors to do it. What Year and model of car? I suppose you could design and build one Probably the 5 volt reg...
What Kind of Voltages? AC, DC, 125 VAC 220 or what 5 volts DC? Oh, I see You want to detect 12 volts? What limits? anything over say 11 volts? Mabe get one of the "Auto Car Truck Voltage Circuit Tester 6V/12V/24V DC Hook Probe Test Light Pencil" on ebay.
Hi, Thanks for the reply, I already uploaded a corrected schematic to my media it's a JPG and I linked it to my Thread no problem I just want to know how to delete the wrong JPG Schematic from my media. One thought is if there is no way to delete media with mistakes I could make a album titled...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
