A power electronic switching device is a combination of active switchable power semiconductor drivers that have been integrated into one. The main characteristics of the switch are determined by internal correlation of functions and interactions of its integrated system. The figure below shows how a power electronic switch system works.
The external circuit of the above diagram is usually held at a high potential relative to the control unit. Inductive transmitters are used to support the required potential difference between the two interfaces.
Features of switch selection :
- Fast
- Low power gate
- High breakdown voltage
- Low loss during off
- Cheap
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