If an inverter power supply operates at 20,000 Hz, how fast does a chopper machine operate?

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Multiple Choice

If an inverter power supply operates at 20,000 Hz, how fast does a chopper machine operate?

Explanation:
The rate at which a chopper switches its output is determined by its switching frequency. In many inverter–chopper setups, the chopper uses the inverter’s clock, so it turns on and off at the same rate as the inverter. If the inverter is operating at 20,000 Hz, the chopper will also switch 20,000 times per second. Therefore, 20,000 Hz is the appropriate operating speed for the chopper. The other frequencies would imply different switching rates not dictated by the inverter’s stated frequency.

The rate at which a chopper switches its output is determined by its switching frequency. In many inverter–chopper setups, the chopper uses the inverter’s clock, so it turns on and off at the same rate as the inverter. If the inverter is operating at 20,000 Hz, the chopper will also switch 20,000 times per second. Therefore, 20,000 Hz is the appropriate operating speed for the chopper. The other frequencies would imply different switching rates not dictated by the inverter’s stated frequency.

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