Thermosetting SB578F/AU4V110X letoto la lihlooho tse etellang pele solenoid valve coil

Ha ea lokela ho hlokomolohuoa inductance ea parasitic, coil inductance, coil ea electromagnetic

1. Ho hlahisoa hore inductance ea parasitic e ke keng ea hlokomolohuoa ke halofo ea likokoana-hloko tse lokelang ho nkoa ka PCB ka moralo.

Ka moralo oa lipotoloho tsa dijithale lebelo le phahameng, tšenyo e bakiloeng ke parasitic inductance ea vias hangata kholo ho feta e bakoang ke parasitic capacitance. Letoto la eona la li-parasitic inductance le tla fokolisa tlatsetso ea bypass capacitor le phello ea ho sefa ea sistimi eohle ea phepelo ea motlakase.

2. Re ka sebelisa foromo e latelang ho bala khakanyo ea inductance ea parasitic ea via:

L=5.08h[In(4h/d)+1] moo l e buang ka ho kenngoa ha via, h ke bolelele ba via, 'me d ke bophara ba lesoba le bohareng. E ka bonoa ho tsoa ho mokhoa oa hore bophara ba lesoba le na le tšusumetso e nyane ho inductance, empa bolelele ba "pass hole" bo na le tšusumetso e kholo ho inductance. E ntse e sebelisa mohlala o ka holimo, ho kenngoa ha lesoba ho ka baloa e le: l = 5.08 x 0.050 [ka (4x0.050 / 0.010) + 1] = 1.015 NH. Haeba nako ea ho phahama ha lets'oao ke 1nS, impedance e lekanang ke XL=TL/T10-90=3.190. Mofuta ona oa impedance o ke ke oa hlokomolohuoa ha ho na le maqhubu a phahameng a hona joale. Ho bohlokoa haholo ho hlokomela hore bypass capacitor lokela ho feta ka vias tse peli ha o hokahanya lera matla le stratum, kahoo inductance parasitic ea vias tla eketsa exponentially.

Lisosa tsa ho futhumatsa ka inductance

Hlahisa le ho hlalosa sesosa sa ho futhumatsa ha inductance.

1. Mohala o tšesaane haholo, o tla etsa hore khanyetso ea inductor e be kholo haholo. Tlas'a boemo ba hore boleng bo sebetsang ba hona joale bo tiisitsoe, ho tloaelehile hore palo e chese.

2, inductance e tletse, 'me mofuta ona oa feberu o boetse o atile haholo.

3. Ho na le matla a maholo a ho sisinyeha lipheletsong tse peli tsa inductor, kahoo mantlha e fetoloa hore e be kholoanyane, e ka fokotsang palo ea ho chenchana le ho khutsufatsa bolelele ba mohala. Tsoela pele sokoloha, nyenyane ripple hona joale, nyenyane makenete tahlehelo, haholo-holo ho hanyetsa mocheso.