• 09

    Peak current mode control  is very popular in DCDC SMPS.It has many advantages,but it is  susceptible to noise.When the duty cycle is greater than 0.5, it oscillates.This attached PDF explains the symptom in theory. Oscillation of PCM ... View More

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  • 26

    Average current mode control in SMPS

    Posted by zheng3726 7 Month ago

    Current mode control as usually implemented in switching power supplies actually senses and controls peak inductor current. This gives rise to many serious problems, including poor noise immunity,a need for slope compensation, and peak-to-average current errors which the ...... View More

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  • 21

    Integrated Magnetics

    Posted by zheng3726 9 Month ago

    Small size and high density is the label of the modern high power DCDC supplies.Integrated magnetics technology is one of the efficient ways.How does it work?... View More

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  • 26

    So Strange to Call EVs New Energy Vehicles

    Posted by mrpower 10 Month ago

    China created a term for electrical vehicles - new energy vehicles (NEV). I don't know how you feel, the first time I saw it, I just felt very strange. New energy?  There is no new energy. Energies (god created? who knows?) are all there in different forms, coming from different channels. Hu...... View More

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  • 19

    Upper Computer Programming

    Posted by Sumi 10 Month ago

        I'm a green hand who has only half a year experience in upper computer programming. I write this blog in one way to record the growth experience for review it in the future. What’s more, sharing it with others who may teach me more or who will get something from it.   ...... View More

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