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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 -
HOW TO CLEAN PCB, PCBA
Cleaning PCB, PCBA, ultrasonic cleaning machine is more professional. The working efficiency of the Mobile Charger PCB Board ultrasonic cleaner is very high. The cleaned PCBA circuit board will be cleaned as long as there is a part contacting with the solution. Although this cleaning method is c...Read more -
How to deal with the temperature rise of PCBA
The circuit board needs to go through a series of processes such as component selection, schematic design, PCB design, circuit board proofing, temperature rise test, etc. to finally produce a circuit board with good performance. Too high temperature rise has a certain impact on the performance an...Read more -
Moisture proof treatment of circuit board
With the popularization of intelligent TV and the miniaturization of devices, PCB boards are developing towards a more compact line spacing and smaller via. However, such motherboards are prone to problems in the high temperature and high humidity environment, which has always been an obstacle to...Read more -
High voltage and high current with low voltage and high current , which have more cost advantages in terms of fast charging?
USB 2.0. By default, the upper limit of power output current from the USB master device to the slave device is 500mA; When the main device is an adapter, the upper limit of its power supply capacity is increased to 1.5A, and the charging current is increased by 3 times. The method to distinguish ...Read more