Electronic Circuits and Tutorials
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Electronics Schematics - P
Phase Shift Keying (PKS) Circuits
Robust, low-cost continuous phase FSK modulator: 01/12/98
Electronic Design - Ideas for Design. In bandpass
data transmission, one common way to design low-cost
frequency-shift-keying (FSK) analog modulators is to use two
independent oscillators that have outputs
switched according to the binary input wave
to be modulated.
ST6 - UNIVERSAL MOTOR CONTROL EVALUATION BOARD: The
UMC01EVAL Evaluation Board is designed for a
very low-cost phase control system based on
the 8-bit ST62T00C microcontroller. It can
be used to control a universal motor powered
by a 230 V / 50 Hz mains supply.
Variable-capacitance diode phase modulator: 10/01/98 Electronic Design - Ideas for Design / This circuit varies the phase between two square waves through at least 180°. This capability finds application in fixed-frequency, phase shift, resonant-mode converters. ICs such as the UC3875 usually only work up to about 500 kHz.