Manual

14 | SAMLEX AMERICA INC.
SECTION 5 | Principle of Operation



of grid power (Supplementary information on pure sine waveform and its advantages
are discussed on pages 8 & 9).

instantaneous value and polarity of the voltage varies cyclically with respect to time. For






Fig. 5.1: 230 VAC, 50 Hz Pure Sine Waveform





frequency and the pulse width of this switching is modulated with respect to a refer-
ence sine wave.
TIME
OV
+
-
-VPEAK = -325V
+VPEAK = + 325V
V
RMS = 230 VAC