Podcast
Questions and Answers
Before the development of power semiconductors, how was the voltage of a DC supply converted to a higher voltage for low-power applications?
Before the development of power semiconductors, how was the voltage of a DC supply converted to a higher voltage for low-power applications?
- By employing a series of capacitors
- By directly using a step-up transformer
- By converting it to AC using a vibrator, then a step-up transformer, and finally a rectifier (correct)
- By using a motor-generator unit
What is the primary function of a DC-to-DC converter?
What is the primary function of a DC-to-DC converter?
- Converts a source of DC from one voltage level to another (correct)
- Converts AC to DC
- Regulates the flow of current in a circuit
- Generates high-voltage power transmission
What were the primary drawbacks of the designs used before the development of power semiconductors for voltage conversion?
What were the primary drawbacks of the designs used before the development of power semiconductors for voltage conversion?
- Limited in voltage range
- Difficult to maintain
- Relatively inefficient and expensive (correct)
- Prone to overheating
What was often used when higher power was needed to convert the voltage of a DC supply to a higher voltage?
What was often used when higher power was needed to convert the voltage of a DC supply to a higher voltage?
For what purpose were the relatively inefficient and expensive designs used before the development of power semiconductors?
For what purpose were the relatively inefficient and expensive designs used before the development of power semiconductors?
Flashcards are hidden until you start studying