Precision triangle waveform generator
AssigneeHarman International Industries, Incorporated
InventorGerald R. Stanley
Life of this patent
Estimating the term…
Abstract
A triangle waveform generator is set forth that comprises a capacitive element, a regulator, and a control circuit. The regulator is configured to charge the capacitive element in responsive to a first control signal and to discharge the capacitive element in response to a second control signal. The control circuit is responsive to a reference waveform to generate the first and second control signals. In one example, the control circuit generates the first and second control signals in response to the amplitude, frequency, phase, and symmetry of the reference waveform.
Claims16
1-10. (canceled)
A waveform generator comprising:
- a reference waveform generator providing first and second reference signals;
- a triangle waveform generator generating a first triangle waveform signal by tracking the frequency and phase of the first reference signal, and generating a second triangle waveform signal by tracking the frequency and phase of the second reference signal.
An amplifier comprising:
- a power stage;
- a reference waveform generator providing first and second reference signals having different phases;
- a triangle waveform generator generating a first triangle waveform signal by tracking the amplitude, frequency, and phase of the first reference signal, and generating a second triangle waveform signal by tracking the amplitude, frequency, and phase of the second reference signal;
- an interleaved PWM amplifier generating interleaved PWM pulses in response to an input signal and the first and second triangle waveform signals to drive the power stage.
25-34. (canceled)
Dependencies are inferred from the claim text.