Folded hluav taws xob yam ntxwv TVS diodes

Folded hluav taws xob yam ntxwv

1. Cov yam ntxwv VI ntawm unidirectional TVS yog tib yam li cov zener diodes zoo tib yam. Qhov rov qab tawg tawg qhov taw tes yog kwv yees li "txoj cai kaum", uas yog qhov nyuaj tawg. Nws yog PN junction avalanche ntaus ntawv. Qhov nkhaus sib haum mus rau qhov sib txawv taw tes rau Vc tus nqi qhia tau hais tias thaum muaj qhov tam sim no overvoltage mem tes, qhov tam sim no ntawm cov cuab yeej nce siab thaum qhov rov qab voltage nce mus rau qhov ntsuas hluav taws xob clamping thiab tseem nyob rau theem no.

"Lub VI yam ntxwv ntawm bidirectional TVS. VI tus yam ntxwv nkhaus ntawm bidirectional TVS yog zoo li ib tug "rov qab mus rau rov qab" kev sib txuas ntawm ob unidirectional TVS, nrog rau tib yam avalanche breakdown yam ntxwv thiab clamping yam ntxwv nyob rau hauv ob qho tib si zoo thiab tsis zoo cov lus qhia. Qhov zoo thiab qhov tsis zoo ntawm lub zog tawg yog: 0.9 Tsawg dua lossis sib npaug rau V (BR) (zoo) / V (BR) (tsis zoo) Tsawg dua lossis sib npaug rau 1.1. Thaum qhov cuam tshuam hluav taws xob siv rau ob qhov kawg tshaj lub clamping voltage Vc, nws yuav raug suppressed tam sim ntawd, ua bidirectional TVS yooj yim heev rau daim ntawv thov nyob rau hauv AC circuits. "