Motor current sense circuit using H bridge circuits

Details Motor current sense circuit using H bridge circuits Motor current sense circuit using H bridge circuits

1997-02-18

1998-06-30

Nguyen, Vinh P.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

G01R 2300

Patent

active

057739919

ABSTRACT:
A circuit is used for sensing motor current. This circuit maximizes the power delivered to the motor whose current is being sensed. Further, this circuit results in maximum voltage drop across the motor. This circuit implements a mirrored H-bridge to mirror a current flowing through a conventional H -bridge having a sensing resistor in series with a VCM motor. The voltage drop across the sensing resistor serves as an indication of the current flowing

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