IPM built-in yItungHa', qaH QaQ circuits QutwI' nap 'ej reliable hardware QaD, development poH shorten pat je failure protection pep. compared je bobcho' igbt conventional, vISangchu'Qo'chugh Dub yIqaw pat reliability 'ej IPM.
laH voltage protection yISeH, overheat protection, overload protection 'ej short-circuit protection undervoltage protection circuit. tlhoy pa' protection circuit neH IPM bobcho', SoQ igbt lojmIt yItungHa', qaH QaQ unit DoH Qu'mey potlh 'ej pIch signal output (fo). Qap Sar protective je follows:
(1) SeH voltage bopummeH voltage protection (uv): Vas + 15v supply HoS, lo' IPM tlhoy supply voltage qup HoS 12.5v, 'ej law' tOFF 10ms. ghaH bopummeH voltage protection, blockade lojmIt yItungHa', qaH QaQ circuit, output signal =.
(2) overtemperature protection (ot): DaSum igbt Qeb insulate substrate jom Hat noch HeghDI' Hat substrate 'aD IPM Hat noch HeghDI' exceeded Hat, rIn Hat protection, lojmIt yItungHa', qaH QaQ circuit, output signal blockade.
(3) overcurrent (oc): lojmIt yItungHa', qaH QaQ circuit, output signal blockade igbt vaj Qu'mey potlh lo'laHghach puS Qu'mey potlh actions 'ej Qu'mey potlh law' tOFF, overcurrent protection, nI'qu'. 'IqwI' di ghap dt webqu'meH nov, cha'-mIw shutdown mode lo' HochHom IPM. nuqDaq vg 'emvo' yItungHa', qaH QaQ voltage Department, circuit Qu'mey potlh isc ioc, Qu'mey potlh nIv ngaj rIn, ic collector Qu'mey potlh, output ifo pIch Qu'mey potlh.
(4) yopwaH bID circuit protection (sc): vaj yopwaH bID circuit, Qu'mey potlh flowing vegh igbt yopwaH bID circuit Qu'mey potlh rIn, vaj SIbI' yopwaH bID circuit protection luH SuvwI' load wanI' yopwaH bID circuit SeH pagh pat failure, lojmIt yItungHa', qaH QaQ circuit, output signal blockade. Hoch je overcurrent protection, 'IqwI' di ghap dt, webqu'meH nov cha'-mIw shutdown mode lo' HochHom IPM. detection Qu'mey over-potlh Qu'mey potlh response poH 'ej shorten, real-time Qu'mey potlh-SeH circuitry (rtc) yIlo', vaj 'e' response poH 'oH nay'ngaqbe' 100ns, vaj effectively peak Qu'mey potlh 'ej HoS, ghur protection suppresses IPM.
ghorgh IPM uv, oc, ot, sc duration signal poH, pIch output pIch vay' duration tfo 1.8ms (President sc duration), porghvetlh, lojmIt yItungHa', qaH QaQ, blockade IPM turn-off IPM pIch duration output signal Dor qaSpu'DI', mInDu'lIj lojmIt yItungHa', qaH QaQ channel laH reset automatically, IPM.
Hoch laH legh, leH pIch signal jan narghtaHvIS 'oH, vaj reH wej Dache'taHvIS tfo pIch Hal legh pItlh, mIw automatic protection, jatlhqa' actions jatlhqa' IPM. overcurrent, circuit yopwaH bID, overheating protection SoHvaD law'qu'pu' je Qap, vaj webqu'meH nov jatlhqa' action, vaj bIH'e' pagh fully QaD IPM internal protection neH. pat ponglIj teH taHtaHvIS, nIS reliable yo'SeH, supplementary external protection circuit.