Time based digital-to-analog conversion of a precision variable amplitude sine wave

摘要: A time based digital to analog converter is presented in which known reference voltages are used create variable period waveforms which, when combined according a desired computation, can convert words into sinusoidal signal of precision variable. To illustrate the application present invention, hemispherical resonator gyroscope (HRG) operating force rebalance wherein with output controls HRG electronics nulling standing wave. rate wave calculated, and software component calculates fraction maximum needed oppose null initial The converted corresponding number periods clock connected circuit. Using thus determined, gate array using logic generates having periods, where amplitude correspond fixed voltage sources, determined by earlier calculation. waveforms, be maintained at high level precision.