16 | SAMLEX AMERICA INC.
5.1 GENERAL
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5.2 PURE SINE WAVE OUTPUT WAVEFORM
The waveform of the AC voltage is a pure Sine Waveform that is same as the waveform
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(Supplementary information on pure Sine Waveform and its
advantages are discussed in Sections 2.2 to 2.4).
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instantaneous value and polarity of the voltage varies cyclically with respect to time. For
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cycles in 1 sec. Cycles per second is called the “Frequency” and is also termed “Hertz (Hz)”.
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TIME
0V
Peak Negative Voltage
- V
PEAK
= - 169.68V
V
RMS
= 120 VAC
Peak Positive Voltage
+ V
PEAK
= + 169.68V
V
oltage (+)
V
oltage (–)
16.66 ms
Fig. 5.1: 120 VAC, 60 Hz Pure Sine Waveform
5.3 PRINCIPLE OF OPERATION
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frequency and the pulse width of this switching is modulated with respect to a refer-
ence sine wave.
SECTION 5 |
Principle of Operation