Polygalaceae MOS tube in the role of the circuit in detail
Author: Shenzhen Yuan Zhi Electronics Co., Ltd.Time:2018-03-01 17:03:27Views:2396【SML】
MOS
English full name for the metal - oxide - semiconductor, describes the
structure of the integrated circuit, that is: the semiconductor devices
must be constructed with silicon dioxide and metal...
label:
MOS
English full name for the metal - oxide - semiconductor, describes the
structure of the integrated circuit, that is: the semiconductor devices
must be constructed with silicon dioxide and metal to form the gate. The configuration of these two types is not much difference, only the
depletion-type MOS initially has a carrier in the Drain-Source channel,
so even in the case of VGS is zero,
The supplier should be a high-speed, high-power, high-voltage, high-gain components. Some FETs can be source and drain AC applications, gate voltage
can be positive and negative, the flexibility is better than the
transistor.
The
ability to work at very low current and very low voltages, and its
manufacturing expertise makes it easy to integrate many FETs into a
single piece of silicon, has led to the widespread use of FETs in large
scale integrated circuits . Its
features: high switching speed, high performance at any frequency, high
input impedance, low driving power, excellent thermal stability, no
secondary breakdown title, wide homework area, high homework linearity,
etc. Its main interests Is able to reduce the size and weight of the component,
MOS is divided into two types, one is DepletionMOS and the other is EnhancementMOS.
MOS source and drain pipe is able to swap, are formed in the P-type backgate N-type area. MOS tube, that is, in the integrated circuit insulation FET.
Due
to the high input impedance of the FET extender, the coupling capacitor
can have a small capacitance and no electrolytic capacitor needs to be
used. In all kinds of small and medium-power switch circuit is widely
used, can be used as a variable resistor can also be used to expand.
And MOS FET high input impedance is very suitable for impedance transformation. Can easily be used as a constant current source can also be used as an electronic switch. Commonly used in multilevel extender input stage for impedance transformation. The enhanced MOS must be its VGS is greater than a specific value before adjusting conduction.
2018-03-01
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