Recalling the "College Entrance Examination"
Those were probably the most knowledgeable days in my life.
Now, we can only comfort ourselves that "
every profession has its own specialty
"
Today, let's
take a professional test.
Let's test the professional strength of all the friends~
2021 Semiconductor Professional Knowledge Examination Paper
(Power Paper, 100 points in total)
Precautions:
1. During the exam, please do not whisper to each other or look around. You can use Google Baidu.
2. After the exam, it is recommended that you leave a message and forward the score to share with others for discussion.
What are the sources of noise in LDO?_______
The noise of LDO is divided into the noise inside LDO and the noise outside LDO. The noise inside LDO comes from the bandgap reference source, amplifier and transistor of the internal circuit. The noise outside LDO comes from the input.
It doesn’t matter if you answer incorrectly ~ click on the blank space to view the analysis!
What are the topologies of switching power supplies?_______
Common basic topologies include buck, boost, reverse buck-boost, buck-boost, flyback, forward, dual-transistor forward, push-pull, half-bridge, full-bridge, SEPIC, and C'uk structure.
It doesn’t matter if you answer incorrectly ~ click on the blank space to view the analysis!
How to suppress EMI of switching power supply?_______
Usually, switching power supply EMI control mainly adopts filtering technology, shielding technology, sealing technology, grounding technology, etc.
It doesn’t matter if you answer incorrectly ~ click on the blank space to view the analysis!
What is a surge?_______
Surge refers to the peak value that exceeds the stable value instantly, including surge voltage and surge current. It is a
peak
. The surge of power supply system mainly comes from two reasons: external (lightning) and internal (load transient change, start and stop and failure of electrical equipment, etc.).
It doesn’t matter if you answer incorrectly ~ click on the blank space to view the analysis!
What power management tools does ADI offer?_______
ADI currently provides four power management tools for free: LTpowerPlay, LTpowerCAD, ADIsimPE, and ADIsimPower.
It doesn’t matter if you answer incorrectly ~ click on the blank space to view the analysis!
Still not satisfied? Want to try a more difficult challenge?
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