Semikron's MOSFET modules in half-bridge and H-bridge configurations in the SEMITOP package. The available MOSFET modules in the 100V voltage class and current ratings of 80A and 335A are specifically designed for high-speed switching applications, boasting low switching losses.
A MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is a type of field-effect transistor that is widely used in electronics and integrated circuits. Here are some key points about MOSFETs:
Structure: MOSFETs consist of three terminals: the source, the drain, and the gate. The channel between the source and drain is controlled by the voltage applied to the gate terminal. The channel is formed in a semiconductor material (typically silicon) between two layers of insulating material (oxide).
Operation: MOSFETs operate based on the principle of an electric field effect. By applying a voltage to the gate terminal, an electric field is created in the oxide layer, which in turn controls the conductivity of the channel. This allows the MOSFET to act as a voltage-controlled switch or amplifier.
Types: MOSFETs are available in two main types: enhancement-mode and depletion-mode. Enhancement-mode MOSFETs require a positive voltage at the gate to allow current flow, while depletion-mode MOSFETs are normally on and require a negative voltage to block current flow.
Advantages: MOSFETs offer several advantages over other types of transistors. They have high input impedance, low power consumption, fast switching speeds, and can handle high currents and voltages. MOSFETs also exhibit low on-resistance, allowing for efficient power transfer.
Applications: MOSFETs are widely used in various electronic devices and systems. They are commonly found in power amplifiers, switching power supplies, motor control circuits, voltage regulators, audio amplifiers, and computer processors. MOSFETs are also used in integrated circuits (ICs) as part of digital logic circuits, memory chips, and microcontrollers.
MOSFET Variations: There are different variations of MOSFETs tailored for specific applications. Some examples include power MOSFETs, which are designed to handle high power levels, and small-signal MOSFETs, which are used for low-power applications.