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Questions and Answers
What is the most typical power electronics device found in consumer electronic devices?
What is the most typical power electronics device found in consumer electronic devices?
- IGBT
- AC/DC converter (rectifier) (correct)
- Thyristors
- Power MOSFET
Which high-power electronic devices were used in the past?
Which high-power electronic devices were used in the past?
- Thyristors
- Power MOSFET
- Diodes
- Mercury-arc valves (correct)
What is the common application of variable speed drives (VSDs) in industry?
What is the common application of variable speed drives (VSDs) in industry?
- Controlling induction motor (correct)
- Charging batteries
- Controlling power transistors
- Processing signals and data
What is the power range of the AC/DC converter (rectifier) in consumer electronic devices?
What is the power range of the AC/DC converter (rectifier) in consumer electronic devices?
Who invented the mercury arc rectifier, which was used to convert AC into DC?
Who invented the mercury arc rectifier, which was used to convert AC into DC?
Flashcards
AC/DC converter (rectifier)
AC/DC converter (rectifier)
A device that converts alternating current (AC) to direct current (DC), commonly used in electronics for powering devices.
Mercury-arc rectifier
Mercury-arc rectifier
A high-power device that converts AC to DC using mercury vapor and an electric arc. Used in older applications.
Variable speed drive (VSD)
Variable speed drive (VSD)
A device used to control the speed of an induction motor, often used to optimize its performance.
Power range of AC/DC converters
Power range of AC/DC converters
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Peter Cooper Hewitt
Peter Cooper Hewitt
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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.
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