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Constant Current Drive circuit for Inductive load

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umesh49

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Hi,
I am searching for some simple way to drive a constant bidirection through an inductor (with 50-100Ohm and 1-5mH). My voltage supply is 5V. I had been looking for some PWM driver IC but had no success to get a IC to operate at 5V.
Please suggest me if any one have a idea how I can implement this.

Regards,
Umesh
 

Hey Thanks for your reply, but I am looking for some IC which can generate some PWM drive for H-Bridge to make sure current flowing through the load is constant (irrespective of some inductance/resistance change)
 

Do you mean the average current, because unless you have a constant current (high impedance circuit) the current will rise exponentially during your pulse then reverse direction and fall exponentially when your pulse is "off".
Frank
 

Yes, I mean average current with peak/low going upto 102%/98% of average current.
 

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