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Blanking Time

Purpose

Generate commutation delay for 2-level inverter bridges

Library

Control / Modulators

Description

pict

This block generates a blanking time for 2-level inverter bridges so that the turn-on of one switch is delayed with respect to the turn-off of the other switch in the same inverter leg.

The input s is a switching function with the values -1 and 1 generated by a 2-level modulator such as the Symmetrical PWM generator. The values of the output s' are either -1 (lower switch turned on), 0 (both switches off) or 1 (upper switch on). If the input is a vector, the output is also a vector of the same width.

Parameter

Delay time
The delay in seconds (s) between the turn-off of one switch and the turn-on of the other switch in an inverter leg.