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If a power inductor as part of line filter reaches saturation current and goes into saturation will it come back to normal after the load current reduces to nominal level? In otherwards, is core saturation reversible process?
Hello,
If a power inductor as part of line filter reaches saturation
current and goes into saturation will it come back to normal
after the load current reduces to nominal level?
** Yep.In otherwards, is core saturation reversible process?
yes, unless the overcurrent was exterme enough to damage it permanentlyIf a power inductor as part of line filter reaches saturation
current and goes into saturation will it come back to normal after the
load current reduces to nominal level? In otherwards, is core
saturation reversible process?
It is for DC use as part of LC filter to minimize the surges
particularly from inductive load switching. Does inductive
surge for such a brief period of few milli seconds cause the
core saturation?
On Thursday, August 2, 2012 4:44:50 PM UTC+5:30, sridhar09...@gmail.com wrote:
If a power inductor as part of line filter reaches saturation current and goes into saturation will it come back to normal after the load current reduces to nominal level? In otherwards, is core saturation reversible process?
-sridhar
It is for DC use as part of LC filter to minimize the surges particularly from inductive load switching. Does inductive surge for such a brief period of few milli seconds cause the core saturation?
It is for DC use as part of LC filter to minimize the surges particularly from inductive load switching. Does inductive surge for such a brief period of few milli seconds cause the core saturation?If a power inductor as part of line filter reaches saturation current and goes into saturation will it come back to normal after the load current reduces to nominal level? In otherwards, is core saturation reversible process?
-sridhar
If a power inductor as part of line filter reaches saturation current and
goes into saturation will it come back to normal after the load current
reduces to nominal level? In otherwards, is core saturation reversible
process?
-sridhar
some magnetically biased "DC inductors". Claimed twice the amp-turnsNote: some ferrites are not reversible. Ni-Zn ferrites usually warn to
avoid saturation, else permeability will drop somewhat.
I swear I've had one toroid (strip steel core) which stayed magnetized
after being saturated for a while (too much DC bias). Running it at AC
(no DC bias, AC well below saturation), it still ran hot and noisy
(banging its head against saturation).
Magnets are weird.
Tim
Back in the day, seems like I remember a vendor trying to sell me
It's not rocket science:On 8/2/2012 4:17 PM, Tim Williams wrote:
Note: some ferrites are not reversible. Ni-Zn ferrites usually warn to
avoid saturation, else permeability will drop somewhat.
I swear I've had one toroid (strip steel core) which stayed magnetized
after being saturated for a while (too much DC bias). Running it at AC
(no DC bias, AC well below saturation), it still ran hot and noisy
(banging its head against saturation).
Magnets are weird.
Tim
Back in the day, seems like I remember a vendor trying to sell me
some magnetically biased "DC inductors". Claimed twice the amp-turns
for the same size core.
If a power inductor as part of line filter reaches saturation current and goes into saturation will it come back to normal after the load current reduces to nominal level? In otherwards, is core saturation reversible process?
-sridhar
In a word, YES.