The stability of the output voltage The above describes the generation of the sinusoidal output voltage waveform. Generally, the UPS is required to be a voltage source, that is, its output voltage is required to be stable. How to achieve stable output voltage in pulse width modulation wave? #low frequency pure sine wave inverter It can be seen from Figure 5(c) that, since the generation of the pulse width modulation wave is due to the combined effect of the triangular wave and the sine wave, the amplitude change of either of the two can lead to the change of the output pulse width modulation wave width. However, in order to ensure the quality of the comparison waveform in the comparator, it is generally not advocated to change the waveform, but to use the method of changing the reference voltage of the comparison waveform to realize the adjustment of the stable voltage. Figure 6 shows the principle diagram of the waveform adjustment of the stable output voltage. #solar inverters 2000w What is used here is the method of changing the reference voltage of the triangular wave, which is briefly discussed below.

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inverter with limiter