Ultrasonic Driver
AssigneeuBeam Inc.
InventorsMatthew Angle, Marc Berte
Life of this patent
Estimating the term…
Abstract
An ultrasonic transducer that can include a driver side and a bias voltage side. A higher voltage source can be electrically connected to the bias voltage side through a first resistor. A lower voltage source can be electrically connected to the driver side of through a second resistor. A field effect transistor or other suitable switch can be included, having a source, a gate and a drain. The source can be electrically connected to ground and the gate can be electrically connected to a control signal source. The drain can be electrically connected to the lower voltage source through a second resistor and be electrically connected to the driver side of the ultrasonic transducer. The gate can be electrically connected to a signal source through a third resistor.
Claims8
A circuit, comprising:
- an ultrasonic transducer having a driver side, a bias voltage side, and a piezoelectric flexure mechanically fixed at one end to a location at a wall of a container in mechanical contact with a membrane;
- a higher voltage source electrically connected to the bias voltage side of the ultrasonic transducer through a first resistor;
- a lower voltage source electrically connected to the driver side of the ultrasonic transducer through a second resistor;
- and
- a switch having a source, a gate and a drain, the source electrically connected to ground, the gate electrically connected to a control signal source, the drain electrically connected to the lower voltage source through the first resistor and electrically connected to the driver side of the ultrasonic transducer.
Dependencies are inferred from the claim text.