Power semiconductor device

Fig. 1: The power devices family, showing the principal power switches.

Fig.2 : Current/Voltage/switching frequency domains of the main power electronics switches.

A power device is usually attached to a heatsink to remove the heat caused by operation losses.

The power semiconductor die of a three-terminal device (IGBT, MOSFET or BJT). Two contacts are on top of the die, the remaining one is on the back.

A power semiconductor device is a semiconductor device used as a switch or rectifier in power electronics; a switch-mode power supply is an example. Such a device is also called a power device or, when used in an integrated circuit, a power IC.

A power semiconductor device is usually used in "commutation mode" (i.e., it is either on or off), and therefore has a design optimized for such usage; it should usually not be used in linear operation.

单词	Power transistor
释义	Power transistor 英语百科 Power semiconductor device A power semiconductor device is a semiconductor device used as a switch or rectifier in power electronics; a switch-mode power supply is an example. Such a device is also called a power device or, when used in an integrated circuit, a power IC. A power semiconductor device is usually used in "commutation mode" (i.e., it is either on or off), and therefore has a design optimized for such usage; it should usually not be used in linear operation.
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Power transistor

Power semiconductor device