Dynamic characteristics of scanning converter with pulse-width-frequency modulation

The paper considers dynamical characteristics of integrating scanning converter with pulse-width- frequency modulation (SC-PWFM) in wide frequency range of input harmonic wave including area of slow digitization frequencies when high-frequency signal is transformed to components with low-frequency spectrum that is within operating frequency band of control system.The paper presents block-diagram, timing waveform of signals, and main ratios for static and dynamical operating modes of SC-PWFM.The authors give technique of dynamical characteristic analysis. Research results are represented as dynamical state spaces of the object. Generalized estimation and comparative analysis were performed involving average deviation of coefficient of pulse and frequency stuffing on dynamical state space of the object calculated in the given range of input harmonic signal frequencies. Obtained characteristics are given in relative units.The paper presents comparative analysis of SC-PWFM with characteristics of scanning converter with pulse-width modulation, in particular, based on the sample of instantaneous values of control signal, for example, with PWM-1.The paper may be of interest for specialists in control theory, automated electric drive and automatic sys-tem elements. Also, the paper may be of use for masters studying corresponding disciplines.