DC current detection--relay?
DC current detection--relay?
(OP)
I am looking for a means to detect current flowing to a DC motor. Ideally, I would like to find a relay with nigh-zero resistance that switches when it detects or passes current from 0.5 to 5.0 amps with no voltage drop.
I am about to give up and build my own (coils and reed switch). Still hoping to find an off-the-shelf solution.
I am about to give up and build my own (coils and reed switch). Still hoping to find an off-the-shelf solution.





RE: DC current detection--relay?
RE: DC current detection--relay?
Mike L.
RE: DC current detection--relay?
http://w
http://www
Good on ya,
Goober Dave
RE: DC current detection--relay?
What size and form factor do you need?
David Castor
www.cvoes.com
RE: DC current detection--relay?
Gunnar Englund
www.gke.org
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RE: DC current detection--relay?
RE: DC current detection--relay?
If you want a good packaged COTS product however, I like these guys.
http://w
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RE: DC current detection--relay?
RE: DC current detection--relay?
If current isn't high enough to actuate the reed switch, then a conductor that carries 5 A usually can be formed into a few loops and that usually takes care of that. There are quite sensitive reed elements.
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: DC current detection--relay?
Keith Cress
kcress - http://www.flaminsystems.com
RE: DC current detection--relay?
Due to budget constraints (pay out of pocket and beg for money back), I'll probably be going with reed switch and coils. Nice to see some consensus on this.
More about the application: DC actuators that have limit switch stops. When limit is reached, voltage is still applied but current drops to zero due to open switch. I need to detect shut-off and deactivate actuator before it starts to backdrive.
RE: DC current detection--relay?
Keith Cress
kcress - http://www.flaminsystems.com
RE: DC current detection--relay?
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: DC current detection--relay?