Hloov hom fais fab mov EMI technology kis tau tus mob channel
(1) Kev xa tawm raws li kev cuam tshuam
(1) Capacitive coupling
(2) Sensory coupling
(3) Resistance coupling
a. Resistance conduction coupling generated los ntawm internal kuj ntawm pej xeem hwj chim qhov chaw
b. Resistance conduction coupling generated los ntawm impedance ntawm tej av hlau
c. Resistance conduction coupling generated los ntawm impedance ntawm pej xeem kab
EMI kev siv tshuab hluav taws xob hloov hluav taws xob
(1) Txo dv/dt thiab di/dt (txo lawv lub ncov thiab nqes hav)
(2) Tsim nyog thov ntawm varistors kom txo qhov hluav taws xob surge
(3) Damping network suppresses overshoot
(4) Diodes nrog cov yam ntxwv zoo rov qab los txo qis EMI zaus
(5) Kev kho lub zog muaj zog thiab lwm yam kev kho kom haum xeeb
(6) Siv lub tshuab lim fais fab uas tsim nyog
(7) Kev kho av tsim nyog
(8) Kev tiv thaiv kev tiv thaiv zoo
(9) Tsim nyog pCB tsim
Hloov hom fais fab mov EMI technology cuam tshuam qhov chaw
(1) Fais fab hloov raj
Lub hwj chim hloov ua haujlwm nyob rau hauv On Off ceev hloov pauv lub xeev, nrog ob qho tib si dv / dt thiab di / dt hloov pauv sai. Yog li ntawd, lub hwj chim hloov tsis yog tsuas yog lub ntsiab cuam tshuam ntawm hluav taws xob teb coupling, tab sis kuj yog lub ntsiab cuam tshuam qhov chaw ntawm magnetic teb coupling.
(2)
EMI qhov chaw ntawm high-frequency transformers yog feem ntau xav txog nyob rau hauv lub di / dt ceev lub voj voog transformer sib xws rau to to inductance, yog li high-frequency transformers yog ib qho tseem ceeb cuam tshuam rau magnetic teb coupling.
(3) Rectifier diode
EMI qhov chaw ntawm rectifier diodes yog feem ntau xav txog cov yam ntxwv rov qab. Qhov cuam tshuam ntawm qhov rov qab rov qab tam sim no yuav ua rau muaj qhov siab dv / dt hauv inductance (lead inductance, stray inductance, thiab lwm yam), ua rau muaj zog electromagnetic cuam tshuam.
(4) PEB
Yuav kom meej meej, pCB yog qhov sib txuas ntawm cov kev cuam tshuam saum toj no, thiab qhov zoo ntawm pCB ncaj qha cuam tshuam rau qhov zoo ntawm EMI qhov kev tawm tsam tau hais los saum toj no.
