Testing Power Stage Switching Characteristics

March 17, 2016 Tektronix Experts

Part 5 of 10

In this installment of our series on power supply testing from start to finish, we’ll walk you through the steps for testing the switching characteristics at no-load, nominal-load and full load conditions.

Before you begin, make sure that the turn-on, turn-off, duty-cycle and dead time of all switches, such as MOSFETs and IGBTs, are as expected. Tektronix oscilloscopes include a high resolution mode that essentially increases the vertical resolution so that turn-on and turn-off can be calculated with the highest accuracy possible.

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