5 Questions
What is the most typical power electronics device found in consumer electronic devices?
AC/DC converter (rectifier)
Which high-power electronic devices were used in the past?
Mercury-arc valves
What is the common application of variable speed drives (VSDs) in industry?
Controlling induction motor
What is the power range of the AC/DC converter (rectifier) in consumer electronic devices?
Tens of watts to several hundred watts
Who invented the mercury arc rectifier, which was used to convert AC into DC?
Peter Cooper Hewitt
Study Notes
Power Electronics Devices
- The most typical power electronics device found in consumer electronic devices is the AC/DC converter (rectifier).
- In the past, high-power electronic devices used were mercury arc rectifiers, thyristors, and diodes.
Variable Speed Drives (VSDs)
- The common application of VSDs in industry is to control the speed of AC motors, resulting in energy efficiency and improved process control.
AC/DC Converter (Rectifier)
- The power range of the AC/DC converter (rectifier) in consumer electronic devices is typically in the range of milliwatts to several hundred watts.
- The mercury arc rectifier was invented by Peter Cooper Hewitt, which was used to convert AC into DC.
Test your knowledge about the application of electronics to the control and conversion of electric power, including the history of high-power electronic devices and modern semiconductor switching devices.
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