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Aging Test for USB Adapter
Why we need to perform aging test for power adapter?When producing switching power adapters in bulk, it is difficult to perform quality control according to process requirements due to the inevitable variations in raw materials, auxiliary materials, related process conditions, and equipment stat...Read more -
Power Factor (PF value) of power adapter
Our country is moving from a manufacturing powerhouse to an intelligent manufacturing powerhouse, and the updates and upgrades of consumer electronics and intelligent products are becoming faster and faster. The high frequency, efficiency, and miniaturization of switch power adapters have become ...Read more -
Insulation protection requirements for PD Charger
Insulation protection requirements for PD Charger 1. Insulation typeInsulation materials and insulation protection must be used to ensure the normal operation of the circuit and when there is a voltage higher than the dangerous voltage inside the circuit. UL60950 divides insulation into five cate...Read more -
Temperature rise in Power Adapter
As we all know, for reliable electrical performance and long service life, switching power adapter must select electrolytic capacitor with sufficient voltage and temperature margin. We are not familiar with the requirements of meeting appropriate ripple current rating. In order to better understa...Read more -
How to fix Sound Noisy in Switching Power Adapters
Solutions to improve Sound Current Noise Caused by Ripples in Switching Power Adapters power adaptersCompared with linear power adapters, the most prominent advantage of switching power adapters (including AC/DC converters, DC/DC converters, AC/DC modules, and DC/DC modules) is their high convers...Read more -
Insulation protection requirements for power adapters
1. Insulation type To ensure the normal operation of the circuit and when there is a higher than dangerous voltage in the circuit, insulating materials and insulation protection must be used. UL60950 divides insulation into five categories: functional insulation, basic insulation, supplementary i...Read more -
Characteristics and Selection of Magnetic Core in PD Power Adapter Charger
Soft ferrite materials are commonly used in high-frequency transformers, inductors, pulse transformers, and boost inductors in PFC. They are a very important component in PD power adapter chargers. However, we cannot fully grasp the characteristics of magnetic materials, their dependence on tempe...Read more -
Electromagnetic Compatibility Design of Switching Power Adapter
Switching power adapter is a strong source of electromagnetic interference emission. The primary rectifier bridge of the switching power supply adapter, because it is a nonlinear device, the current is a severely distorted half-sine wave, which contains rich high-order harmonics, so various facto...Read more -
High-efficiency power conversion IC with higher output power
With the development of science and technology, the functions of various electronic devices increase, resulting in the increase of their power consumption, which will require more and more strict power supply ICs. Therefore, it is particularly important to intelligently control the power supply o...Read more -
Guidelines for rework and repair in PCBA factory
There are some PCB boards with processing defects in the PCBA processing in the PCBA factory These boards with processing defects cannot be shipped directly. They need to enter the repair process. They can only be shipped after being confirmed to be correct after being processed by the maintenan...Read more -
Why are gallium nitride chargers so good?
Traditional usb charger Just remember one thing. It is a very traditional transformer. In fact, as shown in the figure above, the ratio between input voltage and output voltage is equal to the ratio of the number of coils (input voltage/output voltage=number of input coils/number of output coi...Read more -
How to operate potting adhesive for electronic circuit board well?
Electronic circuit board potting adhesive is a kind of adhesive suitable for industrial field. It can seal and bond electronic components of various sizes and shapes with good effect. In recent years, this type of adhesive has a good development and is widely used in the industrial field. With t...Read more
