Electrical – How to increase hall sensor voltage

hall-effect

I apologize but I know jack about this stuff and this is probably a simple question I can’t seem to figure out. I have 12 volt power supply, a 3 wire unipolar Honeywell SRC3-A1 4.5-24 volt hall sensor but only puts out 380-400mv on the supply line and I need it to power a crydom DC60S3 solid state relay that requires min of 3.5-32 volt. How do I bring up the voltage from .4v to say 5v? Simplest option preferred for a electricical dummy.

Hall Sensor: https://sensing.honeywell.com/SR3C-A1-value-added-magnetic-sensors

Relay: http://www.crydom.com/en/products/catalog/dc60-series-dc-panel-mount.pdf

Best Answer

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It should be this simple. Here is why.

The output of the hall device is specified as open collector and is capable of sinking 10ma. The chart of the current demand for the relay says ~7ma at 12 volts. Because the Hall device is open collector, there should be no current when off which is well below the 2.2ma turn on for the relay.

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