Author ：Iflowpower – Portable Power Station Supplier
Why does the UPS power supply do not output? What should I do if the UPS power is not output? In daily life, many people don't know much about UPS power, once failed to find professional people to repair, master some UPS power supply can save a lot of time, the following small compound teachers UPS power supply does not output what to do, why UPS power will not output? First, why did the UPS power supply do not output? The UPS power supply has no voltage output may be because of power outage, if the battery power is not problematic, then from the drive circuit, protection circuit, waveform appear from the inverter, the mulberry link is started, and the output is measured. It is normal, if Not normal, then it has to be checked whether the control signal output of the PWM of the waveform appears is normal. This step can determine the good and bad of the inverter drive circuit.
The PWM control signal has an output, then the problem is in the inverter drive circuit, in turn, the problem may exist that the protection circuit is blocked, and the PWM control of the waveform will cause the waveform, which is not output, and the inspection of the circuit can be judged. The waveform has a good or bad, the power supply of the measurement protection circuit is normal, but no work, then it can be judged that the problem occurs in the waveform. When the power is supplied, the control indicator is normal, but the UPS power supply has no output: 1 Automatic regulator control line No AC feedback signal input, causing no relay to be sucked; 2 Automatic regulator control line damage, or two The above relay group closes the main power transformer inputs the fuses in the winding loop.
Second, what should I do if the UPS power supply does not output? 1. Check the battery power supply, especially the current limiting resistor, etc. The block illustrates the voltage to analyze 5.
Use a magnifying glass to view the board printing surface, check whether there is a wide range of electric voltage input ranges, indicating the utilization ability of the mains. The output voltage and the frequency range are small, indicating that the main adjustment capacity is strong, and the output is stable. The waveform distortion rate is used to measure the stability of the output voltage waveform, and the voltage stability indicates the stability of the output voltage when the UPS suddenly applies to the full load by the zero load.
The above is some of the main points of the UPS power supply, and the skills in everyday life can try to repair themselves. It is really no longer requesting professional people.
Copyright © 2023 iFlowpower - Guangzhou Quanqiuhui Network Technique Co., Ltd.