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The equivalent circuit for a power MOSFET consists of one MOSFET in parallel with a parasitic BJT. If the BJT turns ON, it cannot be turned off, since the gate has no control over it. This phenomenon is known as "latch-up", which can lead to device destruction. The BJT can be turned on due to a voltage drop across the p-type body region.
Equivalent circuit of a power MOSFET, including the dynamic elements (capacitors, inductors), the parasitic resistors, the body diode. Date: 13 April 2006 (original upload date) Source: No machine-readable source provided. Own work assumed (based on copyright claims). Author: No machine-readable author provided.
Figure 1: Basic N-channel JFET common-source circuit (neglecting biasing details). Figure 2: Basic N-channel JFET common-source circuit with source degeneration. In electronics, a common-source amplifier is one of three basic single-stage field-effect transistor (FET) amplifier topologies, typically used as a voltage or transconductance amplifier.
The drawback of connecting a MOSFET in series is that it has to carry the main thyristor current, and it also increases the total voltage drop by about 0.3 to 0.5V and its corresponding losses. Similar to a GTO , the ETO has a long turn-off tail of current at the end of the turn-off and the next turn-on must wait until the residual charge on ...
If the MOSFET is an n-channel or nMOS FET, then the source and drain are n+ regions and the body is a p region. If the MOSFET is a p-channel or pMOS FET, then the source and drain are p+ regions and the body is a n region. The source is so named because it is the source of the charge carriers (electrons for n-channel, holes for p-channel) that ...
Equivalent circuit of an MCT. An MOS-controlled thyristor (MCT) is a voltage-controlled fully controllable thyristor, controlled by MOSFETs (metal–oxide–semiconductor field-effect transistors). It was invented by V.A.K. Temple in 1984, and was principally similar to the earlier insulated-gate bipolar transistor (IGBT). [1]