> From: Laurent FAILLIE
> Subject: Re: [Owfs-developers] 1-wire Capacitors Question
>> Another thing that helped was adding a 1N5711 Schottky diode and a
>> 1.5KE20A-T TVS at each end of the bus (it is driven from the middle).
> It's for lightning protection ? If so, d
On 04.09.2018 20:37, Loren Amelang wrote:
> I have a single bus with ten parasitic 18B20s spread along close to 100' of
> cable
Wow. Frankly I wouldn't even dream of doing that without a 5V wire.
My basement bus would have required close to twice that lenght if I had
run it as a single straight
hi Loren,
Le mardi 4 septembre 2018 à 21:00:45 UTC+2, Loren Amelang
a écrit :
> Another thing that helped was adding a 1N5711 Schottky diode and a
> 1.5KE20A-T TVS at each end of the> bus (it is driven from the middle).
It's for lightning protection ?If so, did you has close lightning
> Date: Tue, 4 Sep 2018 08:52:07 + (UTC)
> From: Laurent FAILLIE
>
> The capacitor has not to be put on the buses (otherwise, you will disturb
> 1-wire signals) but on the GND and Vcc pin of the DS2482-800.As far I
> remember, I've put a 0.1uF ... (not sure :) ). Bye
I have a single bus with
The capacitor has not to be put on the buses (otherwise, you will disturb
1-wire signals) but on the GND and Vcc pin of the DS2482-800.As far I remember,
I've put a 0.1uF ... (not sure :) ).
Bye
Le mardi 4 septembre 2018 à 10:41:33 UTC+2, Mick Sulley
a écrit :
Thanks for the reply
Thanks for the reply.
Yes the adapter is based upon the DS2482-800. What value of capacitor
and should it be at the adapter or the far end of the bus? Do I just
need one or one on each bus?
Thanks
Mick
On 04/09/18 00:22, Laurent FAILLIE via Owfs-developers wrote:
Hi,
If the "" is based
Hi,
If the "" is based on DS2482-800, you need an efficient decoupling capacitor
b/w it's Vcc and GND pins and/or a very stable power supply.
I faced such issue some weeks back (shared on this list), and securing my GND
path + a decoupling capacitor seem having corrected this issue.
Bye
Laurent
I have been plagued by a problem with one of my control systems for a
number of years now and I am still trying to fix it. I have posted a
few times before, and following suggestions I have replaced some of the
cabling and replaced the power supplies with Meanwell MDR-20-5 units
Running 3.1p5
