mean. n. 1. Something having a position, quality, or condition midway between extremes; a medium. 2. A number that typifies a set of numbers, such as a geometric mean or an arithmetic mean.he antilog of the mean of the logarithm of the calculated values, the same as the n th root of the product of the values. It is often a more useful mean for growth curves.
Threshold Voltage Threshold voltage, V, is defined as the minimum gate bias which can form a conducting channel between the source and drain. For power MOSFETs, it is usually measured at the drain-source current of 250uA. Gate oxide thickness and doping concentration of the channel can be used to control the V .
When using the MOSFET as a switch we can drive the MOSFET to turn âONâ faster or slower, or pass high or low currents. This ability to turn the power MOSFET âONâ and âOFFâ allows the device to be used as a very efficient switch with switching speeds much faster than standard bipolar junction transistors.