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US 7,479,838 B1Granted
Energy efficient waveform generation using tuned resonators
OwnerWilliam C. Athasinventor
Life of this patent
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Abstract
A power source, a primary inductor, a load capacitance, and one or more tuned branch resonators and switching devices are coupled to generate pulses which represent a superposition of sinusoidal waveforms. The primary inductor is connected between the power source and the load. At the start of each cycle the load is coupled to ground and each tuned-branch resonators is reinitialized to re-energize the circuits and to stabilize the waveform when the frequencies of the sinusoidal waveforms are non-periodic.
Claims14
An oscillator circuit comprising:
- a switching device coupled between a first node and a second node, said switching device being responsive to a control signal;
- an inductive element coupled between said first node and a voltage source;
- a first branch resonator circuit coupled between said first node and said second node;
- wherein the voltage between said first node and said second node swings between zero and a predetermined maximum value;
- and
- wherein when said switching device is off, the signal at said first node consists of a superposition of a plurality of sine waves.
3 more elements
A method of generating an oscillating waveform comprising the steps of:
- controlling a switching device coupled between a first node and a second node to be off during a first phase wherein an inductive element is coupled between said first node and a voltage source and a first branch resonator circuit is coupled between said first node and said second node;
- controlling said switching device to be on during a second phase;
- wherein the voltage between said first node and said second node swings between zero and a predetermined maximum value;
- and
- wherein during said first phase the signal at said first node consists of a superposition of a plurality of sine waves.
2 more elements
Dependencies are inferred from the claim text.