Diode Bridge on DC switch inputs

Help us decide what to build next.
metroplex
Member
 
Posts: 3
Joined: Tue Feb 02, 2016 1:51 pm
Has thanked: 0 time
Been thanked: 1 time

Diode Bridge on DC switch inputs

Thu May 12, 2016 8:58 am

Is there enough room inside to stick a diode bridge on the inputs so we could power the WS-12-250-DC via AC low voltage?
This would also make reverse polarity a non-issue.

-Mike

User avatar
rebelwireless
Experienced Member
 
Posts: 607
Joined: Mon Sep 01, 2014 1:46 pm
Has thanked: 31 times
Been thanked: 136 times

Re: Diode Bridge on DC switch inputs

Thu May 12, 2016 9:39 am

seems like a very specific need... you could just put the rectifier in-line if you want to push low voltage AC....The advantage of AC is that it's moderately safe at higher voltage, so you can keep amps down on a wire and run it distance... low voltage AC offers very little...

it would be nice to have polarity protection on the DC input though...

User avatar
sirhc
Employee
Employee
 
Posts: 7347
Joined: Tue Apr 08, 2014 3:48 pm
Location: Lancaster, PA
Has thanked: 1597 times
Been thanked: 1317 times

Re: Diode Bridge on DC switch inputs

Thu May 12, 2016 10:27 am

I pinged Dave on this.
I think the new WS-8-150-DC has reverse polarity protection but is still not an isolated power supply for safe operation on negative 48V DC sites which is expensive to implement for such a small number of users but we keep talking about it.
Support is handled on the Forums not in Emails and PMs.
Before you ask a question use the Search function to see it has been answered before.
To do an Advanced Search click the magnifying glass in the Search Box.
To upload pictures click the Upload attachment link below the BLUE SUBMIT BUTTON.

User avatar
Dave
Employee
Employee
 
Posts: 723
Joined: Tue Apr 08, 2014 6:28 pm
Has thanked: 1 time
Been thanked: 158 times

Re: Diode Bridge on DC switch inputs

Thu May 12, 2016 1:51 pm

our new WS-8-150-DC has polarity reversal protection, hook it up the way ya to in regards to polarity...and always bear in mind the negative input is also our negative output, so our POE is not isolated electrically from the DC input power.

in regards to putting a bridge rectifier internally, you will void the warranty, so I am not going to recommend it. if you want to put one outside the box, i guess you could if you want to, but depending on your load, the bridge rectifier will heat up a lot....

User avatar
rebelwireless
Experienced Member
 
Posts: 607
Joined: Mon Sep 01, 2014 1:46 pm
Has thanked: 31 times
Been thanked: 136 times

Re: Diode Bridge on DC switch inputs

Thu May 12, 2016 3:33 pm

I wasn't recommending putting the rectifier in the case... just in-line before it inputs.. if low voltage AC is really wanted..

Geeky907
Member
 
Posts: 4
Joined: Thu Apr 13, 2017 2:02 pm
Has thanked: 0 time
Been thanked: 0 time

Re: Diode Bridge on DC switch inputs

Tue Jul 27, 2021 9:25 pm

Mabie Sell a Banana Plug to Binding post Full-wave bridge rectifier module as an accessory :)

User avatar
sakita
Experienced Member
 
Posts: 200
Joined: Mon Aug 17, 2015 2:44 pm
Location: Arizona, USA
Has thanked: 87 times
Been thanked: 80 times

Re: Diode Bridge on DC switch inputs

Wed Jul 28, 2021 2:32 pm

Curious. So are you thinking of using 24VAC (which is common in some security applications, for example) with a bridge rectifier to provide unfiltered DC?

If the power supply doesn't mind dirty DC and you have > 6A capacity in the wiring and rectifier it shouldn't turn into an ElectroBOOM episode ("Full Bridge Rectifier") :lol:
Today is an average day: Worse than yesterday, but better than tomorrow.

Return to What should we build next

Who is online

Users browsing this forum: No registered users and 8 guests