Ukugcina amandla (i-PI)

Uncedo lwaMandla, ekubhekiswa kulo njenge-PI, kukuqinisekisa ukuba i-voltage kunye neMithombo yamandla yangoku kwaye ifikelele kwiimfuno. Ukunyaniseka kwamandla kuhlala kolunye lo mngeni mkhulu kwi-PCB ye-PCB ephezulu.

Inqanaba lokugcina amandla libandakanya inqanaba le-Chip, inqanaba lokupakisha i-Chip, inqanaba lebhodi yesekethe kunye nenqanaba lenkqubo. Phakathi kwawo, ingqibelelo yamandla kwinqanaba lebhodi yesekethe kufuneka ihlangabezane nezi mfuno zintathu zilandelayo:

1. Yenza i-voltage ripple kwi-chip i-chip incinci kunenkcazo (umzekelo, impazamo phakathi kwe-voltage kwaye i-1V ingaphantsi kwe + / -50m);

2. Ukulawulwa komhlaba kwakhona (okwaziwa ngokuba yi-Synchronous Ingxolo yengxolo ye-SSN kunye ne-synchronous

3, Ukucutha ukuphazamiseka kwe-electromagnetic (i-EMI) kunye nokugcina ukuhambelana kwe-electromagnetic (Emc)

Ingxaki yokugcina amandla

Ingxaki yokugcina ingqibelelo ibangelwa ikakhulu uyilo olungenangqondo lokwenza i-Candouting yeCawa, impembelelo enkulu yesekethe, isahlulo esibi sokubonelela ngamandla / inqwelomoya, uyilo olungenangqondo kunye nendawo engalinganiyo. Ngokugcina amandla okulinganisa, ezi ngxaki zafunyanwa, kwaye iingxaki zokugcina amandla zasonjululwa ngezi ndlela zilandelayo:

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Uhlalutyo lokugcina amandla

Ngohlalutyo lwamandla okugcina amandla, ezona ntlobo ziphambili zokulinganisa zibandakanya uhlalutyo lwevolthi ye-DC, uhlalutyo lwe-decoupling kunye nohlalutyo lwengxolo. Uhlalutyo lwevoltage ye-DC lubandakanya uhlalutyo lweemilo ezinzima kunye neemilo zeplani kwi-PCB kwaye zinokusetyenziselwa ukugqiba ukuba ingakanani i-voltage iya kulahleka njani ngenxa yokuchasana nobhedu.

Ibonisa ukuxinana okwangoku kunye neegrafikhi zeqondo lobushushu "amabala ashushu" kwi-PI / I-DI / I-DERMAL CY

Uhlalutyo lwe-decoupling ngokuqhelekileyo luqhuba utshintsho kwixabiso, uhlobo, kunye nenani lamandla asetyenziswa kwi-PDN. Ke ngoko, kuyimfuneko ukubandakanya ukuthoba igesi kunye nokuxhathisa kwemodeli ye-capacitor.

Uhlobo lohlalutyo lwengxolo lungahluka. Banokubandakanya ingxolo kwizikhonkwane zamandla ecawa ezisasaza ibhodi yesetshi kwaye zinokulawulwa ngamandla ekuchaphazeleki. Ngohlalutyo lwengxolo, kunokwenzeka ukuba uphande ukuba ingxolo idityaniswa njani na kumngxunya omnye, kwaye kunokwenzeka ukuhlalutya ingxolo yokutshintsha i-switchrononous.