Thread: Battery based tank circuit (tested)

Originally Posted by LESLIEx317537

I've always seen the sproggy and how it's been changing.

It's up to version 3.5 now? How many watts is it? And how hard is it to aquire all the parts. Does he sell a kit? Is it in a box allready?

www.mastero.tk

All your answers are here ! it changes for the good.

Mastero

Originally Posted by LESLIEx317537

OK, so what's the best power supply out there?

This is what I have been running for 2 years with Jeff's shutdown controller. It says min in is 9 volts, so why does my PC reboot on crank?
http://www.keypower.com/proddetail.a...&linenumber=15

How is it connected to power? What gauge wire, how long, what fusing, what kind of connections? How is it grounded? Have you measured voltage in your car while cranking?

The Keypower is actually one of the PSUs shown to benefit from capacitor based tank circuits, but I don't mention those anymore out of fear of being flamed like hell. Help with Tank Circuit

Won't the resistor drop the voltage going into the backup battery also?

Yes this will naturally happen when the backup battery is flat and need alot of current to charge up. The resistor is there to limit the current going into the battery and this is exactly what we want.

Looking at the original circuit, it is possible to remove the lower diode on the diagram and replace it with a wire. The good thing about this is the backup can provide the full voltage into the PC as theres no more voltage drop caused by the lower diode. The downside is the battery cannot be fully charged up when the PC is running since the PC will take down the charging voltage of the battery with it. Also the charging current is not limited properly since the battery will try to get the charging current directly from the upper diode. But I guess this might work better on some setup.

You can run diodes in parrallel to acheive more amp loading.

Yes Im aware of that, but the circuit was orignally designed for my low power laptop so I wasnt so concern about the more than 3A diodes. As I mentioned it before the design can easily be modified to work with higher current...for those who like to use inverters.

Besides, making your own stuff is fun. Sometimes I don't feel like buying premaid stuff. I'ma do it myself kind of person. I change my own oil, why not go to Jiffy lube, You goto Jiffy lube or your dealer, I'll do it myself. It's part of the fun part, building and learning and posting questions on this forum


I agree...making your own stuff is fun. I also used to fly model planes and build it from the plan. Same with the model cars with petrol engine I used play with them alot. Yup buying premade stuff is simply boring, designing your own things and building it is far more interesting than just putting them together...even though it may or may not work, the point is you learnt something...how can one learn when they havent even tried. I just sometimes find it strange when one ask for advice and they give something like...buy an OPUS ... A question come up "Im building a car but im having problem with..." Do I hear a response something like "go and buy a car instead its much easier to do"? Sure it is but this is a hobby.

Oil change...do people really have to ask someone to do it for them? I can understand if the task is impossible or a specialised tool is needed. Beside those garage that change oils dont even flush the engine properly...all they do is suck out the oil. New oil but with all the sludges still in the sump. Just watching them do thier jobs make me wanna scream, some cant even turn a screw.

The Keypower is actually one of the PSUs shown to benefit from capacitor based tank circuits, but I don't mention those anymore out of fear of being flamed like hell

Im not even gonna bother...we came up with a conclusion with this one. I dont know about "shakes" though