What are the causes of power module failure in the Excelle?
1 Answers
The causes of Excelle failure are parameter abnormalities and usage faults. When the power input voltage is too high or the load is less than 10% of the rated load, the power module will fail; when the power output voltage is too low, the voltage drop of the anti-reverse diode at the input end is too large, or the input filter inductance is too high, the power module will also fail. When the above faults occur, it is necessary to go to a 4S shop for timely repair, and do not replace the power module by yourself. Introduction to power modules: A power module is a power supply that can be directly mounted on a printed circuit board. Its characteristic is that it can provide power for application-specific integrated circuits (ASIC), digital signal processors (DSP), microprocessors, memories, field-programmable gate arrays (FPGA), and other digital or analog loads. Generally, such modules are called point-of-load (POL) power supply systems or point-of-use power supply systems (PUPS). Modular power supplies are widely used in switching equipment, access equipment, mobile communications, microwave communications, optical transmission, routers and other communication fields, as well as automotive electronics, aerospace, etc. The role of power modules: Power modules are one of the voltage conversion devices. Their main function is to convert between AC and DC. In addition, they have the advantages of easy maintenance, flexible design, cost and time savings, high power, high efficiency and high reliability.
