Page 55 - ebook PdP FET
P. 55
OPERATION OF
TABLE OF CONTENTS
CHAPTER 4
CHAPTER 3
Source: electricalandcontrol.com
Depletion region will be form if the gate terminal is applied with
the negative bias voltage.
Since gate is negative, it means electrons are on gate.
These electrons repel the free electrons in the n-channel, leaving
a layer of positive ions in a part of the channel.
In other words, we have depleted (emptied) the n-channel of
some of its free electrons. CHAPTER 2
Therefore, resistance have been increased. So, lesser number of
free electrons are made available for current conduction through
the n-channel.
The greater the negative voltage on the gate, the greater is the
reduction in the number of electron in the channel.
CHAPTER 1
In fact, too much negative voltage can cut-off the channel.
48
