Transducer driver

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10497358
SERIAL NO

15851214

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Importance

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Abstract

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A circuit for driving a transducer in a mid-air haptic system includes a voltage source, a voltage sink, a current source, a trickle capacitor, a storage capacitor, a haptic system transducer, a first switch, a second switch, and a third switch. Using these components, a portion of the charge required for switching a transducer is sourced from the decoupling capacitance. When the switching completes, additional charge is transferred immediately from the power supply back into the decoupling capacitance. This acts to lower the peak current by fully utilizing 100% of a switching waveform for transfer of charge from the power supply to capacitors local to the transducer.

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Patent Owner(s)

Patent OwnerAddress
ULTRAHAPTICS IP LTDTHE WEST WING GLASS WARF BRISTOL BS2 0EL

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Long, Benjamin John Oliver Bristol, GB 76 2497
Tester, David Philip Cambridge, GB 2 114

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