Badcaps.net Forum
Go Back   Badcaps Forums > Search Forums
Register FAQ Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 25 of 500
Search took 0.04 seconds.
Search: Posts Made By: eccerr0r
Forum: General Electronics Technical Discussion 12-13-2019, 05:56 PM
Replies: 48
Views: 643
Posted By eccerr0r
Re: Simplest 3S or 4S lithium ion protection circuit?

Yeah, it looks like it charges slower than it can discharge?
Forum: General Electronics Technical Discussion 12-13-2019, 11:42 AM
Replies: 48
Views: 643
Posted By eccerr0r
Re: Simplest 3S or 4S lithium ion protection circuit?

500mA doesn't do justice these days... hoping for at least 1A preferably 2 or more...
Then again 500mA is better than 0, I had a box that shuts off charging when itself is being charged...
Forum: General Electronics Technical Discussion 12-12-2019, 09:57 PM
Replies: 48
Views: 643
Posted By eccerr0r
Re: Simplest 3S or 4S lithium ion protection circuit?

Looks like for 1S, and it's limited to 500mA output?
Forum: General Electronics Technical Discussion 12-10-2019, 01:53 PM
Replies: 4
Views: 123
Posted By eccerr0r
Re: Car Ammeter

It's frequently done actually, but calibration is a problem - how many amps is that voltage drop equal to?

The alternate method is using hall effect sensors on those wires and those can be...
Forum: General Electronics Technical Discussion 12-09-2019, 06:50 PM
Replies: 7
Views: 106
Posted By eccerr0r
Re: Ring Doorbell Solar Panel Battery Pack Modified

"they" are storing the video, your equipment does not hold onto the video past a short while... No port forwarding needed, everything is out to their server "just to be convenient" ...
Forum: General Electronics Technical Discussion 12-07-2019, 04:38 PM
Replies: 1
Views: 56
Posted By eccerr0r
Re: Mystery chip

Probably some programmable logic device with custom programming on it. Finding the original intent will be quite difficult, though perhaps it can be erased and reused, though determining which may...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 12-07-2019, 12:54 PM
Replies: 113
Views: 2,732
Posted By eccerr0r
Re: DPS5020 dual power supply build

So is there a difference between end equipment and building code rules and hence is why post 105 is confusing?
Forum: Equipment Usage, Soldering, Techniques, and Reviews 12-06-2019, 08:20 PM
Replies: 113
Views: 2,732
Posted By eccerr0r
Re: DPS5020 dual power supply build

I'd imagine Canada have much similar rules as USA which is described in the NEC. However even https://en.wikipedia.org/wiki/Electrical_wiring_in_North_America has some wording implying that neutral...
Forum: Troubleshooting Game Consoles & Other Weird Devices 12-06-2019, 01:14 AM
Replies: 30
Views: 778
Posted By eccerr0r
Re: Battery charging / power supply switch board for a Red Rhino electric scooter

If you get it otherwise working, the improvement is to add another resistor or put a fuse between the charger input and battery+ instead of that jumper of solder...
Forum: General Electronics Technical Discussion 12-05-2019, 12:24 PM
Replies: 33
Views: 513
Posted By eccerr0r
Re: Charger circuit questions

designing the circuit is easy, actually getting hardware that actually does it, however, requires some physical effort... :D
Forum: General Electronics Technical Discussion 12-04-2019, 06:22 PM
Replies: 33
Views: 513
Posted By eccerr0r
Re: Charger circuit questions

I really should figure out a way to test the li-ion cells that I have for capacity and use that info to balance...
Forum: General Electronics Technical Discussion 12-03-2019, 08:59 PM
Replies: 33
Views: 513
Posted By eccerr0r
Re: Charger circuit questions

Well people have bought them, and people tested them (and found they are not real).
Just strange that DGW was still using it, perhaps just because it's expendable...

Then again even if...
Forum: General Electronics Technical Discussion 12-03-2019, 07:52 PM
Replies: 33
Views: 513
Posted By eccerr0r
Re: Charger circuit questions

Still looking for takers on someone who thinks it can be adjusted by adding "a few" components and that lying to the chip is easy...

It's tougher than I thought and I thought it was tough to...
Forum: General Electronics Technical Discussion 12-03-2019, 07:04 PM
Replies: 3
Views: 80
Posted By eccerr0r
Re: Ottlite brand Light Box came in the mail today great for looking through circuit

hmm... I guess I've never done that on PSU boards (usually 2-layer or less). Usually I just photograph at most, otherwise just look at it. Not sure why I don't use light through the board when I...
Forum: General Electronics Technical Discussion 12-03-2019, 05:11 PM
Replies: 3
Views: 80
Posted By eccerr0r
Re: Ottlite brand Light Box came in the mail today great for looking through circuit

Never know where and when you can get useful stuff...
The circline lamp is excellent for magnifiers, it always bothered me with the point source lamps that cast shadows.

I don't have/use a...
Forum: General Electronics Technical Discussion 12-03-2019, 04:37 PM
Replies: 163
Views: 2,422
Posted By eccerr0r
Re: Directly replacing NiMh cells with Li-Ion cells - bad idea ?

currently for the hll of it, I have a 6-cell SLA hooked up in parallel to a 10-cell NiMH and charging CCCV at 13.8V.

Big tradeoff here, see it? Alas, it's difficult to use both packs at the same...
Forum: General Electronics Technical Discussion 12-03-2019, 11:33 AM
Replies: 163
Views: 2,422
Posted By eccerr0r
Re: Directly replacing NiMh cells with Li-Ion cells - bad idea ?

A 18650 with protection you can charge fairly easily. And NiMH cells usually are tolerant with charging (at least they won't burst into flames.) But if you optimize for one, the other won't work to...
Forum: General Electronics Technical Discussion 12-02-2019, 09:13 PM
Replies: 4
Views: 164
Posted By eccerr0r
Re: This Black-Web battery power supply for tablets and phones with a twist

Well, the 1S configuration, discharge needs to boost to 5V and (optionally) buck to charge from 5V.

For the 2S configuration, one needs to buck to 5V for discharge, and boost from 5V to 8.4V to...
Forum: General Electronics Technical Discussion 12-02-2019, 09:02 PM
Replies: 48
Views: 614
Posted By eccerr0r
Re: CCTV cameras: single PSU or individual PSUs ?

Ah... it would be more interesting when the supplies are symmetric to each other, which is what redundant server PSUs generally are.
Forum: General Electronics Technical Discussion 12-02-2019, 08:28 PM
Replies: 33
Views: 513
Posted By eccerr0r
Re: Charger circuit questions

DGW has a "5000mAh" 18650!
Forum: Equipment Usage, Soldering, Techniques, and Reviews 12-02-2019, 06:45 PM
Replies: 113
Views: 2,732
Posted By eccerr0r
Re: DPS5020 dual power supply build

That would agree with what I see so far - meaning a DPST is okay since neutral is not ground, but I still don't quite understand the statement in post 105...
Forum: General Electronics Technical Discussion 12-02-2019, 11:59 AM
Replies: 48
Views: 614
Posted By eccerr0r
Re: CCTV cameras: single PSU or individual PSUs ?

How would you deal with initial power on? Draw a circuit?

Normally people do PSU redundancy/failover with diode logic-OR structures, though it has significantly more loss than a relay (though the...
Forum: General Electronics Technical Discussion 12-02-2019, 11:20 AM
Replies: 48
Views: 614
Posted By eccerr0r
Re: CCTV cameras: single PSU or individual PSUs ?

ATX PSUs? Reliable? Ever looked at this website? (https://badcaps.net/forum/forumdisplay.php?f=32) :D
Forum: General Electronics Technical Discussion 12-01-2019, 08:02 PM
Replies: 4
Views: 164
Posted By eccerr0r
Re: This Black-Web battery power supply for tablets and phones with a twist

Sigh.

I might have to get another one of these things. I had one but accidentally fed in 19V into the charging port that requires 5V... Not sure what got damaged but it's totally toast now,...
Forum: General Electronics Technical Discussion 12-01-2019, 07:46 PM
Replies: 33
Views: 513
Posted By eccerr0r
Re: Charger circuit questions

If it's something like the Baofeng charger, it's like green when idle, red when charging. Probably will light or blink if over temperature or shorted. It's all chinese to me, no clue...

But I...
Showing results 1 to 25 of 500

 
Forum Jump


Badcaps.net Technical Forums 2003 - 2019
Powered by vBulletin ®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 09:26 AM.
Did you find this forum helpful?