Use AMDC hardware commands to generate a PWM signal on channel 1

[elsevers]

Abstract

Use the AMDC hardware commands to generate a PWM signal on channel 1 and measure it with an oscilloscope.

Approach

Measure the gate signals to the top and bottom switch using an oscilloscope.

• Take a screen capture when at least 4 cycles are shown and include the screen capture in the comments of this issue.
• Label which signal is for the top switch and which is for the bottom switch and use your cursors to confirm the duty ratios.
  1. 100 kHz PWM signal with a deadtime of 500 ns and duty ratio of 20%.
  2. 100 kHz PWM signal with a deadtime of 500 ns and duty ratio of 50%.

Hints:

1. Use a DB9 breakout board like this to facilitate your measurement.
2. You will want to review the Power Stack Interface document to understand which pins of the connector to measure with your oscilloscope.
3. You may also find it useful to review the schematics for the version of the AMDC that you are using. You can find the schematics in the AMDC-Hardware repository within the revision folder of each released board.
4. If you need a refresher on PWM, refer to session 1 of Plan for Fall 2023.