kynnysjännitys
Kynnysjännitys, a Finnish term, translates to "threshold voltage" in English and is a fundamental concept in electronics, particularly in the study of semiconductors and transistors. It refers to the minimum voltage that must be applied to a gate terminal of a field-effect transistor (FET) to initiate a conducting channel between the source and drain terminals. Before this voltage is reached, the transistor effectively acts as an open switch, preventing current flow.
For n-channel enhancement-mode MOSFETs, the kynnysjännitys is positive. Applying a positive voltage to the gate attracts
Depletion-mode transistors also exhibit a kynnysjännitys, but their behavior differs. Depletion-mode n-channel MOSFETs have a negative