Qhov sib txawv thiab qhov sib xws ntawm ZENER DIODE thiab TVS DIODE

Qhov sib txawv thiab zoo sib xws ntawm Stabilizer Tube thiab TVS Tube

Hauv kev siv cov tshuab hluav taws xob, kev cuam tshuam ntawm qhov hluav taws xob thiab tam sim no feem ntau tuaj yeem ua rau cov khoom siv hluav taws xob puas tsuaj. Lub ntsiab lus tseem ceeb ntawm kev cuam tshuam ib ntus yog nws lub sijhawm ua haujlwm luv luv, tab sis nws qhov siab voltage amplitude thiab lub zog hloov pauv ua rau nws muaj kev puas tsuaj loj heev. Txhawm rau tiv thaiv kev puas tsuaj, TVS raj tau siv dav. TVS (Transient Voltage Suppressor) yog ib qho khoom siv tiv thaiv hluav taws xob zoo tsim los ntawm kev siv hluav taws xob ruaj khov raj tshuab. Nws lub cim hluav taws xob yog tib yam li cov hluav taws xob zoo tib yam stabilizing diode, thiab nws cov duab zoo ib yam li cov diode zoo tib yam. Thaum TVS tube xaus rau qhov kev cuam tshuam ntawm lub zog siab, nws tuaj yeem txo nws cov impedance ntawm qhov ceev heev (txog 1 * 10-12 vib nas this), ib txhij nqus cov tam sim no loj, qhov voltage ntawm nws ob kawg yog clamped. ntawm tus nqi predetermined los xyuas kom meej tias tom ntej no Circuit Court Cheebtsam tsis puas los ntawm ib ntus high-zog cuam tshuam. Peb feem ntau pom TVS diodes yog ib qho tseem ceeb ntawm kev tiv thaiv ESD hauv qee cov khoom siv hluav taws xob.

Raws li cov yam ntxwv ntawm ob qho tib si, lawv tuaj yeem siv rau kev ruaj ntseg hluav taws xob thiab ua haujlwm hauv lub xeev rov qab txiav tawm. Lawv cov yam ntxwv pem hauv ntej yog tib yam li cov diodes zoo tib yam, thiab lawv cov yam ntxwv rov qab yog cov khoom siv PN junction avalanche. Txawm li cas los xij, qhov tawg tam sim no ntawm TVS transistor Zener yog me dua, thiab qhov voltage stabilization ntau dua 10V tsuas yog 1mA. Hais txog kev hais lus, qhov tawg tam sim no ntawm Zener diode yog ntau dua, tab sis Zener diode voltage stabilization qhov tseeb tuaj yeem ua tiav qhov siab. Ntxiv mus, TVS transistors hais txog cov lus teb tsis tu ncua, yog li lawv lub sijhawm tsis tseem ceeb, uas txhais tau hais tias lub sijhawm teb ntawm qhov ntsuas hluav taws xob diode feem ntau qeeb dua li ntawm TVS transistors. Nyob rau tib lub sijhawm, lub zog ntawm TVS raj yog siab dua, thaum lub zog ntawm lub raj regulator yog qis dua.