With the development of modern electronic technologies, electronic equipment has become more complex and therefore more and more demanding for power loads. Although the conventional voltage power is more stable and reliable to use, it needs to be equipped with large and heavy transformers and filters, which make it difficult to meet the need for flexibility. And at this point, the switch, the power power advantage, which is applied to a wider field, is small, light and efficient. In order to control and protect the power switch power, we should have some knowledge of its failure and maintenance to ensure the reliability of the power at the time of use。
The first type of failure is the burning of power or the blowing of pipes, and we should proceed with the following steps: first, we should primarily check key areas such as the current bridge, the diodes, the large filters, the capacitor, and, if there are no problems, check if there are any problems with the interference circuits。
The second type of failure is normal for the safety tube, but the power supply remains without voltage output. This is where we should measure whether the voltage has been activated, and if the voltage is zero or very low, check if there is a component leak in the trigger foot, so that the fault can be detected. If there is a start-up voltage, there may be a failure to control the chip or to protect the circuit, at which point we can trace the failure。
The third type of failure is the high voltage produced by the power source. The cause of this failure is generally the problem of steady voltage control circuits, which may occur in any of the components of this closed circuit, including light beams, control chips, etc. The fourth failure is the opposite of the low voltage from the power source, which is caused by a variety of factors. One is short circuits in circuits; the other is the failure of the conduit of the switch, which leads to an increase in internal resistance to the power supply and a decrease in the output voltage; thirdly, 300 volts of filtering capacitors are not functioning well, which reduces the load capacity of the power; fourthly, there is a problem with the switch transformer。
In many cases of failure, if there is a problem with the switch, the power must be cut immediately, or the switch is easily burned. Once the power is out, we'll replace the switch and run other faults。
In some high-power settings, the power generation of the switch is very depleted and prone to overheating and burning of components. For some of the more complex repairs, specialized maintenance staff are required to perform troubleshooting and repair. In order to address these minor problems and problems in the course of their use, it is important to have the necessary knowledge of electrical principles and overhauls, and it is therefore hoped that friends in need will be able to read the above。
