Hi all,
Whilst this is to do with a power supply I have been working on with some great help from others on this this forum I wanted to be crystal clear about this part as its intimately connected with electrocution if screwed up... so a separate post.
GROUNDING
I have AC entering into the power supply enclosure with an earth wire (green). I have a rectified AC power supply with active being 320V and a ground.
I know I must attach the earth wire to the enclosure (metal).
With regard to the ground - should that also be connected to the enclosure? (I was thinking yes here).
Further, how do you minimise ground loops in the circuit - what should you do in the layout of the circuit?
FILTERING
I have an EMI filter line filter I was going to use.
View attachment 62214
I am intending to use this line filter but should I also use one of these (common mode/differential mode) as well? or do I not have to worry about this?
View attachment 62216
View attachment 62217
From what I can gather common mode and differential chokes differ with the way the coils are connected with the differential choke having one coil swapped around.
From the picture and having a look it appears both coils on these are wound in the same direction... (have I got this right?) So to create a differential choke all I would need to do is swap one of these coils around?
Kind Regards
Simon
Whilst this is to do with a power supply I have been working on with some great help from others on this this forum I wanted to be crystal clear about this part as its intimately connected with electrocution if screwed up... so a separate post.
GROUNDING
I have AC entering into the power supply enclosure with an earth wire (green). I have a rectified AC power supply with active being 320V and a ground.
I know I must attach the earth wire to the enclosure (metal).
With regard to the ground - should that also be connected to the enclosure? (I was thinking yes here).
Further, how do you minimise ground loops in the circuit - what should you do in the layout of the circuit?
FILTERING
I have an EMI filter line filter I was going to use.
View attachment 62214
I am intending to use this line filter but should I also use one of these (common mode/differential mode) as well? or do I not have to worry about this?
View attachment 62216
View attachment 62217
From what I can gather common mode and differential chokes differ with the way the coils are connected with the differential choke having one coil swapped around.
From the picture and having a look it appears both coils on these are wound in the same direction... (have I got this right?) So to create a differential choke all I would need to do is swap one of these coils around?
Kind Regards
Simon