Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hello Seyyah,
A current loop output tries to maintain (the same) current regardless of the resistance of the transmission line. The resistance (of the loop) should be low enough to make that possible of course.
Several receivers can be connected in serial, as long as the (max) loop resistance...
Hallo niki (fena),
Can you show a PDF or BMP version of your PCB? (Traces only).
note: If you want another discharge circuit, it also implies other software. Probably Dexter doesn't like that.
At.
Thank's Ruslan_W, for all the links, and the English manual.
I wonder if the code (above link) contains English text or is it Cyrillic?
In the manual I saw both displayed..
The project looks very interesting.
Does someone have a schematic diagram or an application in which the ST828 batterycharger controller is used?
The chip is from Chips Garden, but I cant't find any application note on the Net. It is an interesting chip however, 16pins SOP and suitable for Li-Ion charging and display control.
Here...
Daniello, if you don't trust your output stages (the 4 (or 8) power Fet's), you can test them staticly if you read pages 12 and 13 of this thread.
Concerning the reference points of the drivers; they are optocoupled, so the upper ones have a level-shifting so that their reference point can be...
daniello_85, you should leave the ground of these drivers connected to the sources of the (high side) Fet's, as in the schematic.
So, not to GND of the inverter circuit.
At.
Jami, to feed the optodrivers from 12v is a good choice.
It is also possible to take out the 2940 regulator and use a simple diode instead (and increase C10 a bit, f.i. to 1000 uF).
In the board loayout you should place the decoupling C's much closer to the TLP250's, directly to the side of...
I have the idea that not much people have succesfully build and used this project.
Although Taner says he does, but he doesn't respond much. I think the original design is from ASP in Switzerland.
www.asp-ap.com
--- edit
There has changed something around the website of asp, or with the company...
You are right Dexter, it's difficult to find a reliable indication, i think usually people just throw them away if this happens, but I often find it's one or two in a string of batteries that spoil the whole pack.
What I suggested is actually some kind of Ri test on the battery. Directly after...
Hello Dexter Dude,
This applies only if you've got some space left in program mem. of course..
Have you ever thought of doing some kind of "health" check on a battery, after it is charged up? Without using extra buttons, you could do a discharge for a fixed time (maybe 5 or 10secs) and translate...
You can only get the same power out of such a circuit (minus inefficiency losses) so 25W input means ca. 20W output, which is 50v x 0,4 amp.
First change de DC into AC with some kind of oscillator , then rectify the AC with a voltage doubler or tripler (capacitors and diodes or a coil and a Fet...
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.
