Iceland There are three elements in the procurement of DCDC conversion module(3)
(3) Before the installation is completed and the power is turned on, the wiring on each terminal should be checked and checked again to ensure that the input and output, AC and DC, single-phase and multi-phase, positive and negative, voltage and current values are correct. Prevent the occurrence of reverse and wrong connections.
(4) For high-power power supplies, there are generally two or more "+" output terminals and "-" output terminals. In fact, they belong to the same output electrode, but for the convenience of user wiring, they are connected together internally.
(5) The module power supply is not allowed to work at full load for a long time. The utilization rate of linear power supply should be controlled within 60%; the utilization rate of switching power supply should be controlled within 80%, otherwise it may cause early artificial failure of module power supply.
The high-voltage power module will generate a very high voltage during operation. If someone touches it, the consequences are unimaginable. In order to ensure the safety of employees and avoid safety risks, it is necessary to understand the insulation when purchasing high-voltage power supplies. Only by ensuring that the insulation is good enough, can some unnecessary troubles be avoided.
3. Make sure the LED advertising screen power supply has multiple certifications.
Unlike other parts, there are many certifications for high-quality power modules, such as ISO9001.CE.RoHS is the certification required for power modules, we choose never to suffer from this, because everything can be fraudulent, qualifications cannot be fraudulent .
In short, the high-voltage LED advertising screen power supply module must pay attention to the above three elements, and only by paying attention to these problems will not suffer losses, otherwise it may lead to safety risks.