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2018-6-6What is PFC?
Power Factor Correction or PFC is to improve the ratio of apparent power to real power. The power factor is around 0.4~0.6 in non-PFC models. In models with PFC circuit, the power factor can reach above 0.95. The calculation formulas are as follows: Apparent Power=Input Voltage x Input Current (V..
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2018-6-6PCB layout
General PCB design process basically as follows: preparation -> PCB Design -> PCB layout -> routing -> routing optimization, and screen printing -> Network and DRC inspection and structural inspection -> plate.
First: preparation. This includes the.. -
2018-6-6UPS batteries of different types of advantages and disadvantages
A: UPS battery commonly used types of factors that affect battery life, different kinds of advantages and disadvantages of the battery:
Applications in UPS battery There are three types: liquid lead-acid batteries, including an open, maintenance-free battery, .. -
2018-6-5 Switching Power Supply Design
Switching Power Supply Design
Switching power supply work in high frequency, high pulse state, are analog circuits in a rather special kind. Cloth boards to follow the principle of high-frequency circuit wiring.
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