Uburyo bwo gupima neza ibikoresho bya SiC na GaN kugira ngo ubone ubushobozi, wongere imikorere n'ubwizerwe

Itsinda rya gatatu rya semiconductors, rihagarariwe na gallium nitride (GaN) na silicon carbide (SiC), ryatejwe imbere byihuse bitewe n’imiterere yaryo myiza. Ariko, uburyo bwo gupima neza ibipimo n’imiterere y’ibi bikoresho kugira ngo bigere ku bushobozi bwabyo no kunoza imikorere yabyo no kwizerwa bisaba ibikoresho byo gupima neza cyane n’uburyo bw’umwuga.

Ingano nshya y'ibikoresho bya "wide band gap" (WBG) bigaragazwa na silicon carbide (SiC) na gallium nitride (GaN) irimo gukoreshwa cyane. Mu by'amashanyarazi, ibi bintu byegereye ibyuma bikingira kurusha silicon n'ibindi bikoresho bisanzwe bya semiconductor. Ibi bintu byagenewe gutsinda imbogamizi za silicon kuko ari ibikoresho bifunganye kandi bigatuma amashanyarazi adasohoka neza, ibyo bikaba bigaragara cyane uko ubushyuhe, voltage cyangwa frequency byiyongera. Umupaka wumvikana kuri uku gusohoka ni imikorere idagenzurwa, kimwe no kunanirwa gukora kwa semiconductor.

Muri ibi bikoresho bibiri binini by’umugozi, GaN ikwiriye cyane cyane gahunda zo gushyira mu bikorwa ingufu z’amashanyarazi make n’aciriritse, hafi kV 1 no munsi ya 100 A. Igice kimwe cy’ingenzi cya GaN ni ugukoresha amatara ya LED, ariko kandi ikanakura mu zindi ngufu nke nko mu itumanaho ry’imodoka na RF. Mu buryo bunyuranye, ikoranabuhanga rikikije SiC ryateye imbere kurusha GaN kandi rikwiriye gukoreshwa mu ngufu zikomeye nka inverters zikoresha amashanyarazi, transmission y’amashanyarazi, ibikoresho binini bya HVAC, na sisitemu z’inganda.

Ibikoresho bya SiC bishobora gukora ku muvuduko mwinshi, inshuro nyinshi zo guhinduranya ibikoresho, n'ubushyuhe bwinshi kurusha Si MOSFET. Muri ibi bihe, SiC ifite imikorere myiza, imikorere myiza, ubucucike bw'ingufu n'ubwirinzi bwo hejuru. Izi nyungu zifasha abashushanya kugabanya ingano, uburemere n'ikiguzi cy'ibikoresho bihindura ingufu kugira ngo birusheho guhatana, cyane cyane mu byiciro byunguka ku isoko nko mu ndege, mu bya gisirikare no mu by'amashanyarazi.

SiC MOSFET zigira uruhare runini mu iterambere ry’ibikoresho byo guhindura ingufu by’igihe gitaha kubera ubushobozi bwabyo bwo kugera ku miterere myiza y’ingufu mu buryo bushingiye ku bice bito. Iri hinduka risaba kandi abatekinisiye kongera gusuzuma bumwe mu buryo bwo gushushanya no gupima busanzwe bukoreshwa mu gukora ibikoresho by’ikoranabuhanga bikoresha ingufu.

Igikenewe cyo gupima bikomeye kirimo kwiyongera

Kugira ngo ibikoresho bya SiC na GaN bigerweho neza, hakenewe ibipimo nyabyo mu gihe cyo guhinduranya ibikoresho kugira ngo birusheho gukora neza kandi byizerwa. Uburyo bwo gupima ibikoresho bya SiC na GaN bigomba kwita ku mikorere n'imbaraga z'amashanyarazi by'ibyo bikoresho.

Iterambere ry'ibikoresho byo gupima no gupima, nka generators z'imikorere idasanzwe (AFGs), oscilloscopes, ibikoresho byo gupima isoko (SMU), n'ibipimo by'ibipimo, biri gufasha abahanga mu gushushanya ingufu kugera ku musaruro ukomeye vuba. Uku kuvugurura ibikoresho biri kubafasha guhangana n'ibibazo bya buri munsi. Jonathan Tucker, umuyobozi wa Power Supply Marketing muri Teck/Gishili, yagize ati: “Kugabanya igihombo cyo guhinduranya gikomeje kuba ikibazo gikomeye ku bahanga mu gukwirakwiza ibikoresho by'amashanyarazi.” Ibi bishushanyo bigomba gupimwa neza kugira ngo bigerweho neza. Bumwe mu buryo bw'ingenzi bwo gupima bwitwa double pulse test (DPT), ari na bwo buryo busanzwe bwo gupima ibipimo byo guhinduranya bya MOSFET cyangwa ibikoresho by'amashanyarazi bya IGBT.

Gushyiraho uburyo bwo gukora ikizamini cya SiC semiconductor double pulse bikubiyemo: generator ikora kugira ngo ikore MOSFET grid; Oscilloscope na porogaramu yo gusesengura ikoreshwa mu gupima VDS na ID. Uretse ikizamini cya double-pulse, ni ukuvuga, uretse ikizamini cyo ku rwego rwa circuit, hari ikizamini cyo ku rwego rw'ibikoresho, ikizamini cyo ku rwego rw'ibice n'ikizamini cyo ku rwego rwa sisitemu. Udushya mu bikoresho byo gupima twafashije injeniyeri mu byiciro byose by'ubuzima gukora ku bikoresho bihindura ingufu bishobora kuzuza ibisabwa mu buryo bunoze ku giciro gito.

Kuba biteguye kwemeza ibikoresho hakurikijwe impinduka mu mategeko n'ibikenewe mu ikoranabuhanga ku bikoresho bikoreshwa, kuva ku gutanga amashanyarazi kugeza ku binyabiziga bikoresha amashanyarazi, bituma amasosiyete akora ku bikoresho by'amashanyarazi yibanda ku guhanga udushya twongerewe agaciro no gushyiraho urufatiro rw'iterambere ry'ejo hazaza.