Simba kutendeseka simulation analytics inoita basa rakakosha mukuona yakavimbika PCB dhizaini. Ivo vanokubatsira kuongorora uye kukwidziridza iyo simba rekutumira network (PDN) kuchengetedza yakagadzikana voltage uye mazinga aripo padunhu rako rese. High-speed PCBs inoda chaiyo PDN impedance dhizaini kudzivirira ripple uye ruzha, izvo zvinogona kudzikisira kuita. Kugadzirisa nyaya dzekutendeseka kwesimba kutanga kunobvumidza iwe kufanotaura maitiro uye kuyedza nemazvo, kuchengetedza mutengo uchienzaniswa nekuvaka akawanda prototypes.
Kuregeredza kuvimbika kwesimba kunogona kutungamirira kumigumisiro yakakomba. Madonhwe emagetsi anogona kukonzera kuti zvikamu zvisashande, nepo pasi kubvongodza kunogona kukanganisa maseketi anonzwisa tsitsi. Dhizaini yakashata yendege yemagetsi kana kuisa capacitor isina kunaka kazhinji inokonzeresa kushanduka kwemagetsi, kuderedza kusarongeka kwechiratidzo uye kuvimbika kwechishandiso.
Zvitsva Zvitsva
Chengetedza voltage yakatsiga muPCB yako dhizaini kuti iite zvirinani.
Gadzira yakanaka yekuendesa simba system kupa voltage yakakodzera uye ikozvino.
Dzora ruzha kumisa matambudziko mumaseketi uye chengetedza masaini akajeka.
Gadzirisa nyaya dzemagetsi kare kuwedzera kushanda uye kuchengetedza mari.
Shandisa maturusi akangwara, sekuisa capacitor zvakanaka, kuvandudza kuyerera kwemagetsi.
Matambudziko Akajairika Simba Kuperera muPCB Dhizaini
DC Simba Kuperera Matambudziko
Voltage kudonha uye IR inodonha nyaya
Voltage inodonha uye IR inodonha ari pakati pezvinetso zvinowanzoitika muDC simba kuvimbika. Izvi zvinoitika kana kushorwa mumambure emagetsi kukonzeresa kudzikiswa kwemazinga evoltage, zvichikonzera kutadza kushanda. Mabhodhi ematunhu epamusoro-azvino anowanzo kuona kudonha kwakakosha kwemagetsi, izvo zvinoburitsa kupisa kwakanyanya uye zvinogona kukonzera kutadza kwemidziyo nguva isati yakwana. Kuti uderedze nyaya idzi, unogona kushandisa hombe vias, kuisa zvikamu padyo nemagetsi masosi, kana kushandisa nzira dzekunzwa kure. Dhizaini yakakodzera yetiweki yekuendesa magetsi inovimbisa yakagadzikana mazinga emagetsi uye inoderedza njodzi idzi.
Ikozvino density uye thermal manejimendi zvinonetsa
Kutarisira ano density uye kupisa kuita kwakakosha pakuchengetedza pcb simba kuvimbika. Yakakwira yazvino density inogona kugadzira inopisa hotspots, izvo zvinogona kutungamira kune mechaniki kusagadzikana uye anogona kuparuka muPCB. Tembiricha dzakakwirira dzinoderedzawo kushanda kwechikamu uye kuwedzera kurasikirwa kwechiratidzo nekuda kwekuchinja kwezvinhu. Kuti ugadzirise izvi zvinonetsa, iwe unofanirwa kushandisa zvakakora zviteedzere, zvine hungwaru kuisa zvinopisa vias, uye kuve nechokwadi chekupanana kwakaringana kwemidziyo yakakwira-ikozvino. Aya matanho anobatsira kubvisa kupisa zvinobudirira uye kugadzirisa mhinduro yechinguvana yedhizaini yako.
AC Simba Kutendeseka Matambudziko
Noise uye ripple mumagetsi ekutumira network
Ruzha uye simba njanji ripple akakosha ac simba kuvimbika matambudziko. Kukurumidza kuchinjika muakaomarara ICs uye yakakwira inductance munzira yekuendesa magetsi inobatsira kuwedzera ruzha voltage. Uku kushanduka-shanduka kunogona kukanganisa maseketi ane hunyoro uye kukanganisa kutendeseka kwechiratidzo. Kushandisa decoupling capacitors uye kuderedza parasitic inductance inzira dzinoshanda dzekudzikisa ruzha uye ripple.
High-frequency impedance uye resonance nyaya
Yakakwira-frequency impedance uye resonance inogona kukanganisa masimba ekutumira masisitimu. Resonances dzinowanzo tungamira kune yakawandisa simba njanji ripple, zvichikanganisa mhinduro yenguva pfupi yedhizaini yako. Kuti udzikise nyaya idzi, iwe unofanirwa kunanga kune flat impedance dhizaini uye ive nechokwadi chakakodzera impedance inofananidzwa. Aya maitiro anowedzera ac simba kuperera uye anovandudza kugadzikana kwese system.
Mhedzisiro yeSimba Matambudziko eKutendeseka
Chiratidzo cheperero degradation
Matambudziko ekuvimbika kwesimba anokanganisa zvakananga kutendeseka kwechiratidzo. Madonhwe emagetsi uye kuputika kwepasi kunogona kukonzera kuti zvikamu zvisashande kana kuita zvisizvo. Kubatana kweruzha pakati pesimba nemitsara yemasaini kunowedzera kushatisa kunaka kwechiratidzo, kunyanya mumagadzirirwo epamusoro-frequency. Kuve nechokwadi chekuti ndege yemagetsi yakasimba uye kuiswa kwayo capacitor kunobatsira kuchengetedza kugadzikana kwemagetsi uye kudzivirira nyaya idzi.
Yakaderedzwa kushanda kwechigadzirwa uye kuvimbika
Kusakwana kwesimba kuvimbika kuongororwa kunogona kutungamira mukuderedzwa kwechishandiso uye kuvimbika. Kusaenzana kwemagetsi kugovera uye kuwedzera ruzha mazinga anokonzeresa kukanganisa system uye inogona kukanganisa chikamu chechikamu. Nekugadzirisa matambudziko ekuvimbika kwesimba kutanga, unogona kuwedzera mashandiro uye hupenyu hurefu hwePCB yako magadzirirwo.
Zvikamu zvakakosha zveSimba Kutendeseka Simulation Analytics
Zvishandiso zveSimba Kutendeseka Simulation
SPICE uye imwe simulation software
Maturusi ekuenzanisa seSPICE akakosha pakuongorora kuvimbika kwesimba mumagadzirirwo ePCB. Ivo vanokutendera iwe kutevedzera maitiro emagetsi ekutumira network (PDNs) mune ese ari maviri nguva uye frequency domain. SPICE inokubatsira kuona kukosha kwainotarirwa kune resistors, inductors, uye capacitor (RLC zvinhu) uchicherekedza zvingangoitika zvinhu zvakaita semagetsi njanji ripple kana pasi bounce. Zvishandiso zvepamberi seAnsys 2D Extractor uye HFSS zvinopa kurongeka kwepamusoro, nemhosho yekumisikidza yakaderera se0.3%. HFSS inokunda mu3D yakazara-wave simulations, ichiita kuti ive yakanakira chiratidzo uye simba kuvimbika kuongororwa. Ansys 2D Extractor inoyera kurongeka uye nguva yekuverengera, kuve nechokwadi chekuenzanisa kwakaringana.
Maturusi ekuyera ekusimbisa uye kuongorora
Mushure mekuenzanisa, iwe unoda chaiwo maturusi ekuyera kuti usimbise dhizaini yako. Zvishandiso zvakaita seKeysight's N7020A simba njanji probe inokubatsira kuongorora zvakatipoteredza zvinhu uye kuona kunobva ruzha. Software yakadai seD9110PWRA inoyera simba rejeshi yekuramba (PSRR) uye inoongorora njanji yemagetsi ripple. Zvishandiso izvi zvinopa nzwisiso yakakosha mukuyerwa kwesimba, kuve nechokwadi chekuti dhizaini yako inosangana nezvinodiwa zvekuita.
Nzira dzeSimba Kutendeseka Kuongorora
DC kuongororwa kwemagetsi uye kugovera ikozvino
DC simba rekuvimbika ongororo inotarisana nekudonha kwevoltage uye kurasikirwa kwekupokana kumakondukita. Inoongorora kuti simba rinosvika sei kumatunhu mabhuroko zvichienderana nezvido zvazvino. Semuenzaniso, bypass capacitors inobatwa semaseketi akavhurika, uye inductors haacherechedzwe muDC simulations. Iyi nzira inokubatsira kuona nzvimbo dzine kupikisa kwakanyanya uye nekugonesa kugovera kwemagetsi.
AC ongororo ye impedance uye ruzha kuongororwa
AC simba rekuvimbika ongororo inoongorora impedance uye ruzha muPDN. Inofanotaura kushanduka kwesimba kunokonzerwa nemhinduro yenguva pfupi uye inoongorora iyo impedance spectrum. Iyi nzira inokubatsira kugadzirisa nyaya dzakaita semagetsi njanji ripple uye resonance, izvo zvinogona kukanganisa masekete akasimba. Nekutevedzera decoupling capacitors uye kuteedzera kureba, unogona kukwiridzira dhizaini yako kuti uite zvirinani.
Metrics Yekuongorora Kutendeseka Kwesimba
PDN impedance uye yayo frequency mhinduro
PDN impedance ndiyo yakakosha metric yesimba kuvimbika kuongororwa. Iwe unogona kuiongorora mudura renguva nekutarisa mhinduro yenguva pfupi kana mune frequency domain nekuongorora iyo impedance spectrum. Yakakwira PDN impedance inotungamira kukuchinja kwemagetsi uye kuwedzera EMI, iyo inogona kukanganisa simba njanji kutendeseka.
Voltage ripple uye kuongororwa kwekugovera
Voltage ripple inokanganisa kugadzikana kwesimba rako rekutumira network. Iwe unogona kuiongorora uchishandisa zvishandiso seD9110PWRA, iyo inoyera PSRR uye kuona kunobva ruzha. Sarudzo yakakodzera capacitor, yakavakirwa paESR uye ESL maitiro, inoderedza ripple uye inovimbisa kugadzikana kwesimba rekupa.
Yazvino density uye thermal hotspot identification
Yakakwira ikozvino density inogadzira inopisa hotspots, iyo inogona kukuvadza zvikamu uye kuderedza kushanda zvakanaka. Unogona kushandisa maturusi ekuenzanisa kuona aya hotspots uye optimize trace wides kana thermal vias. Izvi zvinovandudza kutungamira kwekupisa uye zvinowedzera kuvimbika kwedhizaini yako.
Matanho Anoshanda eSimba Kutendeseka Simulation
Schematic-Level Simba Kutendeseka Simulation
Kuziva simba rekutumira zvinodiwa
Nhanho yekutanga mune schematic-level simba kuvimbika simulation inosanganisira kutsanangura iyo simba rekupa zvinodiwa yePCB yako. Iwe unofanirwa kuona iyo voltage uye zvazvino zvinodikanwa zvechimwe nechimwe chikamu uye ive nechokwadi chekuti magetsi ekutumira network (PDN) inogona kuzadzisa izvi zvinodiwa. Iyi nhanho inokubatsira kuti udzivise matambudziko ekuvimbika kwemagetsi senge madonhwe emagetsi kana magetsi njanji ripple inogona kukanganisa dhizaini yako.
Simulating voltage uye nzira dzemazuva ano
Kana wangoona zvinodiwa, tevedzera magetsi uye nzira dzazvino uchishandisa maturusi akaita seSPICE. Tanga nekuenzanisira dhizaini yePCB, kusanganisira decoupling capacitor arrays, kuburikidza neparasitic inductance, uye plane capacitance. Shandisa ongororo yenguva pfupi kuti ufungidzire mazinga eruzha akaiswa pamusoro peinotarirwa DC voltage. Iyi mifanidzo inopa ruzivo rwakakosha mune zvingangoita dc simba rekuvimbika nyaya uye inokubatsira kukwenenzvera dhizaini yako usati waenda kudanho rekugadzirisa.
Layout-Level Simba Kutendeseka Ongororo
Kuongorora PDN impedance muPCB dhizaini
Padanho rekugadzirisa, kuongorora PDN impedance kwakakosha pakuona kugadzikana kwemagetsi kuendeswa. Mabhodhi ekumhanya-mhanya anoda chaiyo PDN impedance dhizaini kudzivirira ripple uye ruzha panguva yekuchinja chiratidzo. Ongororo iyi inozivisa matambudziko ekushanda kubva kune ese DC uye AC maonero, kuve nechokwadi chekuita kwakavimbika. Kugadzirisa nyaya dzakaita senge trace kuramba uye kusakwana kwendege dzemagetsi kunoderedza kudonha kwevoltage uye kunosimudzira kuvimbika kwesimba.
Kukwenenzvera hupamhi hwekutsvaga uye kuburikidza nekuiswa
Kugonesa trace wides uye kuburikidza nekuisa kwakakosha pakugadzirisa ikozvino density uye kupisa kwekuita. Matekirwo akafara anoderedza kupokana uye madonhwe emagetsi, nepo vias hombe ichigovera zvazvino zvakanyanya. Iwe unogona zvakare kushandisa akawanda akaturikidzana kuti uwedzere hupamhi hwekutsvagisa uye kushandisa mapeteni ekuyamura ekudziya kubata kupisa. Aya mazano anovandudza ese simba kuvimbika uye chiratidzo chekuvimbika muPCB dhizaini yako.
Kusimbisa uye Iteration muSimba Kutendeseka Simulation
Kuenzanisa mibairo yekunyepedzera nezviyero zvepasirese
Kusimbisa kunosanganisira kuenzanisa mibairo yekunyepedzera nezviyero zvepasi rese kuti uve nechokwadi. Shandisa advanced simulation maturusi kuenzanisa waveforms nekuteerera bvunzo. Kubatanidza maelectromagnetic modhi ePDN nemagetsi enzvimbo nzvimbo avhareji mamodheru anowanzo kuburitsa mhedzisiro inonyatso enderana nekuita chaiko. Iyi nhanho inovaka chivimbo mukugadzira kwako uye inosimbisa nzvimbo dzekuvandudza.
Kugadzirisa dhizaini zvichienderana nezvakawanikwa
Mushure mekusimbisa, natsa dhizaini yako kugadzirisa chero mutsauko. Tarisa pakugadzirisa dhizaini yePDN, decoupling capacitor kuiswa, uye nzira dzekudzika. Iterative gadziriso zvinoenderana nemhedzisiro yekuongorora inovimbisa kuti PCB yako inosangana nesimba rekuvimbika signoff zvinodiwa. Iyi nzira inowedzera kuvimbika uye kushanda kwedhizaini yako yekupedzisira.
Maitiro Akanakisisa eMasimba Kutendeseka Ongororo
Inoshanda Decoupling Capacitor Placement
Kusarudza zvakakodzera capacitor values
Kusarudza iyo chaiyo decoupling capacitor kukosha kwakakosha pakuchengetedza yakagadzikana kuendesa simba. Tevera matanho aya kuti uve nechokwadi kuiswa kunoshanda:
Ipa inokwana imwe yemunharaunda decoupling capacitor kune yega yega inoshanda mudziyo pabhodhi.
Shandisa yakawanda decoupling capacitor kune yega yega voltage kugovera, uchivaisa padyo nenzvimbo yekupinda voltage.
Deredza nzvimbo yechiuno nekubatanidza ma capacitor emunharaunda zvakananga pakati pevoltage uye pasi pini zvechishandiso chinoshanda.
Kune ndege dzemagetsi dzakanyatso paradzana, sarudza macapacitor ane hombe yezita capacitance iripo. Dzivisa kubatanidza zvisaririra kune capacitor pads.
Kune ndege dzemagetsi dzakaparadzana, isa ma capacitor ari padyo sezvinobvira kune simba kana mapini epasi echishandiso chinoshanda.
Aya maitiro anoderedza matambudziko ekuvimbika kwesimba kufanana nevoltage ripple uye iva nechokwadi chekushanda kwakafanana.
Kuderedza loop inductance kuburikidza nehurongwa hwekuisa
Kuderedza loop inductance kwakakosha pakuvandudza simba rekuvimbika. Isa decoupling capacitors padhuze nemapini echishandiso chinoshanda. Ita shuwa kuti capacitor pini yakabatana nendege iri kure kwazvo iri padyo nepini yemudziyo. Iyi yekutarisa inoderedza inductance uye inosimudzira mhinduro yenguva pfupi, zvichitungamira kune zvirinani ongororo mhinduro.
Kudyidzana Dhizaini Inoenda kune Simba Kutendeseka
Kubatanidza simba uye chiratidzo chekuvimbika kuongororwa
Kubatanidza simba uye chiratidzo chekuvimbika kuongororwa kunovandudza dhizaini yekugadzira uye inoderedza mutengo. Kubatanidzwa uku kunokubvumira kugadzirisa matambudziko ekuvimbika kwesimba uye kuderedzwa kwechiratidzo panguva imwe chete. Iyo zvakare inova nechokwadi chekuti dhizaini yako inosangana nezvinodiwa zvekushanda pasina kufanira kudzokororwa.
Kukurudzira kudyidzana kwakasiyana-siyana
Kudyidzana dhizaini nzira dzinosanganisira mipiro kubva kunhengo dzechikwata dzakawanda, senge mainjiniya emagetsi uye vanogadzira marongero. Kushandirapamwe uku kunowedzera kushandiswa kwezviwanikwa uye kunopa mhinduro dziri nani dzekuongorora panzvimbo dzakakosha dzekugadzira. Iyo timu-yakavakirwa nzira inovimbisa yakazara simba rekuvimbika simulation analytic maitiro, kuvandudza yakazara dhizaini mhando.
Kushandisa Advanced Tools uye Techniques
Kushandisa 3D field solvers yekuongorora kwakadzama
3D field solvers inopa chaiyo modelling yeakaoma geometries mumagetsi ekugovera network (PDN). Ivo vanopa manzwisisiro mune impedance maitiro uye yakakwirira-frequency maitiro, ayo akakosha kune yakagadzikana kuendesa simba. Zvishandiso izvi zvinokubatsira kuongorora misiyano ye impedance zvichienderana nenzvimbo yebhodhi uye kuiswa kwechikamu, kugadzirisa matambudziko esimba zvinobudirira.
Kuita otomatiki kudzokorora mabasa ane advanced design software
Yepamberi dhizaini software inodzokorora mabasa ekudzokorora, kuchengetedza nguva uye kushanda nesimba. Zvishandiso zvakaita seCadence Allegro PowerTree zvinogadzira zviono zvePDN, zvichigonesa kusimbiswa kwakasimba. Constraint-based dhizaini nzira inogadzirisa chikamu chechikamu uye kuderedza basa remanyorero. Otomatiki inokwidziridza seta yekumisikidza uye inovimbisa yakavimbika ongororo mhinduro.
Simba kuvimbika simulation analytics yakakosha pakugadzira yakavimbika PCB madhizaini. Ivo vanovimbisa kugadzikana kwevoltage, optimize magetsi ekugovera network (PDN), uye vanobata ruzha kuchengetedza zvinonzwisa tsitsi.
Makiyi ekutora anosanganisira:
Kugadzikana kwemagetsi kunovimbisa kushanda kwakakwana uye kuvimbika.
PDNs inopa chaiyo voltage uye ikozvino kune zvikamu.
Noise manejimendi inoderedza kuvhiringika mumaseketi anonzwa.
Kugadzirisa matambudziko ekuvimbika kwesimba kutanga kunowedzera PCB kuita uye hupenyu hurefu. Mafungiro ekutanga ekugadzira, senge kuona madonhwe emagetsi uye kunobva ruzha, kudzivirira kudhura kudzokororwa uye kuve nechokwadi chekushanda kwakanaka.
"Tarisa paIR Drop kutanga, sangana nezvinodiwa zvekudonha zvingangoita 3% zvinotenderwa. Wobva watarisa pane yekubypass capacitance kana kuvigwa kugona." – Chris Anzwa
Ongorora maturusi epamusoro uye matekiniki, akadai sekushandisa akawanda pasi ndege, kuwedzera hupamhi hwekutevera, uye nekugadzirisa decoupling capacitor kuiswa, kuti uwedzere kunatsiridza kuvimbika kwesimba mumagadzirirwo ako.
FAQ
Chii chinonzi simba kuvimbika simulation, uye nei ichikosha?
Simba rekuvimbika simulation rinokubatsira kuongorora uye kukwidziridza iyo simba rekutumira network (PDN) muPCB dhizaini yako. Inovimbisa kugadzikana kwemagetsi uye mazinga aripo, kudzivirira nyaya dzakaita semagetsi anodonha, ruzha, uye nzvimbo dzinopisa. Iyi nzira inovandudza mudziyo kuvimbika uye kuita.
Iwe unosarudza sei iyo yakakodzera decoupling capacitors?
Sarudza ma capacitor zvichienderana nekugona kwavo, akaenzana akateedzana kuramba (ESR), uye akaenzana akateedzana inductance (ESL). Zviise pedyo nezvikamu zvinoshanda kuderedza loop inductance. Shandisa macapacitor akawanda ekugadzikana kwevoltage uye madiki kune akakwira-frequency ruzha kudzvinyirira.
Simba rekuvimbika simulation maturusi anogona kufanotaura kuita chaiko-kwenyika?
Ehe, maturusi ekuenzanisa seSPICE neHFSS anopa fungidziro chaiyo. Ivo vanotevedzera madonhwe emagetsi, ruzha, uye impedance mukugadzira kwako. Nekudaro, kusimbisa mibairo nezviyero zvepasirese zvinoita kuti PCB yako ikwane kuita zvinodiwa.
Ndeapi mametric akakosha ekuongorora kuvimbika kwesimba?
Makiyi metrics anosanganisira PDN impedance, voltage ripple, uye ikozvino density. Yakaderera PDN impedance inovimbisa kugadzikana kwemagetsi kuendesa. Minimal voltage ripple inoderedza ruzha, nepo kutonga kwazvino density kunodzivirira kupisa hotspots uye kunatsiridza kuvimbika.
Iwe unogona sei kuderedza ruzha mumagetsi ekutumira network?
Shandisa decoupling capacitors kudzvinyirira ruzha. Kuderedza parasitic inductance nekuisa capacitors pedyo nezvikamu. Dhizaina flat impedance mbiri yePDN kudzivirira resonance uye kuve nechokwadi kugadzikana kwemagetsi kuendesa.
