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US 5,184,331 AGranted
Transducer circuit for removing reactive component of transducer signal
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsMichael J. Sullivan, Douglas G. Dussault
Life of this patent
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Abstract
Transducer circuit, including a tuning inductor for removing the reactive mponent from the signal of an acoustic transducer; the inductance varies with frequency, thus permitting the transducer-tuning inductor to present a non-reactive load to the an amplifier over a broad operating frequency.
Claims6
A transducer circuit comprising:
- an acoustic transducer having an output lead carrying an alternating current signal having a substantial reactive component that varies with frequency;
- an inductor having a core with a primary winding, one end of which is connected to the said output lead;
- a power amplifier to which the other end of the inductor winding is connected;
- a control circuit having an input lead that is connected to the said other end of the primary winding;
- and
- a secondary winding on the inductor core to which the control circuit output lead is connected, which winding operates in bucking relationship to the primary winding, so that the power amplifier is tuned to the transducer over a wide range of frequencies.
3 more elements
Dependencies are inferred from the claim text.