Title :
Precision frequency-independent variable-phase phase shifter
Author :
Rao, K. Sreenivasa ; Kumar, Varadarajan Jagadeesh ; Sankaran, P.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Madras, India
fDate :
2/2/1995 12:00:00 AM
Abstract :
A frequency-independent phase shifter, that provides a precise phase shift, variable from 0 to 360°, is described. With the use of a microcontroller and feedback arrangement, the phase shift only depends on the ratio of two DC voltages. A stable, drift-free operation with good accuracy is hence obtained over the AF range
Keywords :
RC circuits; circuit feedback; microcontrollers; phase shifters; DC voltage ratio; drift-free operation; feedback arrangement; frequency-independent phase shifter; microcontroller; precise phase shift; variable-phase phase shifter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950144
