Re: grounding questions



none none wrote:
"Rheilly Phoull" <Rheilly@xxxxxxxxxxx> wrote in message
news:4494af18$0$12274$5a62ac22@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
none none wrote:
Can the below be done safely? I have two circuits running 2
different sources.. space is limited and if I can get away with
using a single ground that would be fantastic.

+120VAC-----------------|+ AC
-----------------| LOAD
|
GND------|
|
-----------------|-DC
+12VDC-------------------|+ LOAD

Not unless ya got a death wish !!
Your diagram is not clear though, surely you are not using active to
ground for the AC part ??

--

Cheers ......... Rheilly P

Where theres a will, I want to be in it.

Here is clarification for you on what i'm actually doing.
I have a cold cathode light that runs off 120VAC, i have a inverter
that converts 12VDC to the neccessary 120VAC.. i have an series of
LED's that need DC.. so i was thinking of running the positive line
for the DC power to the LED's then just hook the ground of the LED
segment to the same ground as the return to the inverter.

Ok I get it. I would not be comfortable with relying on the integrity of the
ground since if there is any failure in that connection ya gonna end up with
a handful of volts on the leds, perhaps you could use some of the modern
thin insulation cable available and keep the circuits isolated ?

--

Cheers ......... Rheilly P

Where theres a will, I want to be in it.


.



Relevant Pages

  • Re: A father / daugther project :-) simple door monitor
    ... the wireing between the monitor appliance and the switches. ... so I figured that driving the leds this way directly is a bad ... I therefore thought to use hex inverter schmitt triggers to have ... The idea should be to input the wire from a switch into a gate (hex ...
    (sci.electronics.basics)
  • Re: Compact Fluorescent Light
    ... I have a Radio Shack flashlight that uses a Satellite F4T5D ... I experimented with LEDs but found them to be very inefficient and ... CCFLs seemed to be the way to go. ... The CCFLs and its inverter are from JKL: ...
    (sci.electronics.design)
  • Re: LED Christmas Tree Lights
    ... I would like to use the inverter but like I said the battery that I ... in the past to wire the led lights in parallel but didn't have any luck ... Get the raw LEDs, wire them up, and then connect it to a reasonable ...
    (sci.electronics.basics)
  • Re: grounding questions
    ... I have a cold cathode light that runs off 120VAC, i have a inverter ... up with a handful of volts on the leds, perhaps you could use some of the ... What if i put a zener diode on the line heading towards ground from the LED ... should blow preventing power from getting to the LED's. ...
    (sci.electronics.basics)
  • Re: LED efficiency
    ... I.N. Galidakis ---http://ioannis.virtualcomposer2000.com/ ... "There's ALWAYS a mistake somewhere" ... Theres always the Kiloled, 144 LEDs at 1Kw: ...
    (sci.engr.lighting)