Uninterruptible power supply with adjustable output voltage
A technology of output voltage and power supply, applied in the field of uninterruptible power supply, which can solve the problems of low modulation ratio of SPWM control and the quality degradation of inverter output power supply, and achieve the effect of ensuring the quality of output power supply and voltage stability
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[0036] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0037] The present invention provides such Figure 1-2 The uninterruptible power supply with adjustable output voltage includes the main power line, bypass power line and maintenance bypass power line, and the main power line, bypass power line and maintenance bypass power line are connected in parallel, A main switch is connected in series on the main power line, a bypass switch is connected in series on the bypass power line, a maintenance bypass switch is connected in series on the maintenance bypass power line, and one end of the main power line is connected to the power input terminal , the power input terminal is electrically connected with the external input power supply, the maintenance bypass power line is used when the UPS enters the by...
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