Sine-wave generation using pulsed D-class amplifier
AssigneeBiosense Webster (Israel) Ltd.
InventorsAssaf Govari, Andres Claudio Altmann
Life of this patent
Estimating the term…
Abstract
A sine wave generator includes a resonator circuit, a control circuit and a pulse generator. The resonator circuit is configured to receive energy pulses and to generate a resonator sinusoidal signal responsively to the energy pulses. The control circuit is configured to estimate a signal measure of the resonator sinusoidal signal, or of a signal derived from the resonator sinusoidal signal. The pulse generator is configured to generate the energy pulses responsive to the signal measure estimated by the control circuit, and to drive the resonator circuit with the energy pulses.
Claims20
A sine wave generator, comprising:
- a resonator circuit, configured to receive energy pulses and to generate a resonator sinusoidal signal responsively to the energy pulses;
- a control circuit, configured to estimate a signal measure of the resonator sinusoidal signal, or of a signal derived from the resonator sinusoidal signal;
- a pulse generator, configured to generate the energy pulses responsive to the signal measure estimated by the control circuit, and to drive the resonator circuit with the energy pulses;
- and
- an amplifier configured to amplify the energy pulses from the pulse generator, wherein the control circuit is configured to trigger a new pulse from the pulse generator when the sinusoidal signal falls below a predetermined threshold and a suitable phase is achieved and stimulate the resonator circuit, the control circuit is configured to monitor a phase measure of the resonator circuit and times the trigger output so that the new pulse will be synchronized with an oscillation in the resonator circuit.
A method for sine wave generation, comprising:
- using a resonator circuit, receiving energy pulses and generating a resonator sinusoidal signal responsively to the energy pulses;
- using a control circuit, estimating a signal measure of the resonator sinusoidal signal, or of a signal derived from the resonator sinusoidal signal;
- generating the energy pulses responsive to the signal measure estimated by the control circuit, and driving the resonator circuit with the energy pulses;
- and
- using an amplifier configured to amplify the energy pulses from the pulse generator, wherein the control circuit is configured to trigger a new pulse from the pulse generator when the sinusoidal signal falls below a predetermined threshold and a suitable phase is achieved and stimulate the resonator circuit to improve efficiency, the control circuit is configured to monitor a phase measure of the resonator circuit and times the trigger output so that the new pulse will be synchronized with an oscillation in the resonator circuit.
Dependencies are inferred from the claim text.