leitmotif
Member
I am seeing this term "galvanic isolation"
I remember in early 70's when the magic marketing phrase was "electronically controlled".
Is this galvanic isolation more marketing?
So I tried to research and found from Wikipedia
http://en.wikipedia.org/wiki/Galvanic_isolation
That two examples are a transformer (not autotransformer) and opto isolaters. I understand both and trust them.
I looked into IEEE and found
http://findarticles.com/p/articles/mi_m0BRZ/is_9_19/ai_57778456/
Appears to be mostly applied to computers - good stuff but not directly applicable to me.
I did "search forum" here and found little info.
Two possible applications where this has serious implications for me.
1. Developing computer controlled office heater using basically resistance heater. Power supplied by 120 VAC line. How do I ensure for five year life that I do not electrocute someone because some solid state gizmo in controller failed?
My first choice is a transformer then rectifiers mostly because that is what I know best.
2. Electric vehicle where the main "traction battery" is 325 VDC and may have a charging voltage up to 400 or so. This battery is ungrounded. I want absolutely no 325 VDC anywhere in passenger compartment or in dash
BUT I must have some control, instrument and display of traction battery for driver. Transformer is out of course and I assume opto isolater also. SO what do I use here
AND how do I be an informed consumer and know the product I am buying is going to do what I want.
QUESTION
Where do I find info on what this galavanic isolation means so that I really know what I am doing?
Dan Bentler
I remember in early 70's when the magic marketing phrase was "electronically controlled".
Is this galvanic isolation more marketing?
So I tried to research and found from Wikipedia
http://en.wikipedia.org/wiki/Galvanic_isolation
That two examples are a transformer (not autotransformer) and opto isolaters. I understand both and trust them.
I looked into IEEE and found
http://findarticles.com/p/articles/mi_m0BRZ/is_9_19/ai_57778456/
Appears to be mostly applied to computers - good stuff but not directly applicable to me.
I did "search forum" here and found little info.
Two possible applications where this has serious implications for me.
1. Developing computer controlled office heater using basically resistance heater. Power supplied by 120 VAC line. How do I ensure for five year life that I do not electrocute someone because some solid state gizmo in controller failed?
My first choice is a transformer then rectifiers mostly because that is what I know best.
2. Electric vehicle where the main "traction battery" is 325 VDC and may have a charging voltage up to 400 or so. This battery is ungrounded. I want absolutely no 325 VDC anywhere in passenger compartment or in dash
BUT I must have some control, instrument and display of traction battery for driver. Transformer is out of course and I assume opto isolater also. SO what do I use here
AND how do I be an informed consumer and know the product I am buying is going to do what I want.
QUESTION
Where do I find info on what this galavanic isolation means so that I really know what I am doing?
Dan Bentler