Variable-frequency circuit develops sine square and triangular waveforms. Three-function generator used variable-rate integrator to generate triangular wave and zero-crossing detector to develop square wave. Sine wave generator uses diode matrix to operate on triangular wave, thus with design harmonic distortion in output is less then one percent. By changing values of outboard resistors and capacitors, same design can be used at higher frequencies.
Three-function signal generator
NASA Tech Briefs ; 3 , 3
1979-01-01
Miscellaneous
No indication
English
NTIS | 1965
|Engineering Index Backfile | 1950
|SIGNAL GENERATOR, INFORMATION GENERATOR, SIGNAL GENERATION DEVICE, AND INFORMATION GENERATION METHOD
European Patent Office | 2022
|NTIS | 1970
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