What would be a common switching frequency...

Question 1 / 204NN4BEVrSmRRL1UukL6A

Question 1 of 204NN4BEVrSmRRL1UukL6A

What would be a common switching frequency for a display system power supply?

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Question 1 of 20

4NN4BEVrSmRRL1UukL6A

What would be a common switching frequency for a display system power supply?

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🔍 Key Concepts

• Difference between linear power supplies (tied to input line frequency) and switching power supplies (operate at much higher frequencies) • Typical switching power supply frequencies used in electronic display systems (order of magnitude: tens to hundreds of kilohertz) • Effect of switching frequency on transformer size and audible noise

💭 Think About

• Which of the choices are close to the power line frequency or its simple multiples, and which are much higher? • For a compact electronic display, would the power supply designer prefer low-frequency (large, heavy magnetics) or higher-frequency (smaller components) operation? • Which frequencies are likely to fall in or near the audible range for humans, and which are clearly above it for quieter operation?

✅ Before You Answer

• Identify which option(s) are related to mains frequency (e.g., 60 Hz and its rectified ripple). • Eliminate any frequency that is too low for a modern switching display supply, considering size and efficiency. • Compare the remaining choices and choose the one that is a realistic, commonly used switching frequency range for compact electronic displays.

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Question 1 of 20

What would be a common switching frequency for a display system power supply?

18 kHz

120 Hz

60 kHz

120 kHz

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Question 1 / 204NN4BEVrSmRRL1UukL6A

Question 1 of 204NN4BEVrSmRRL1UukL6A

What would be a common switching frequency for a display system power supply?

Back

Question 1 of 20

4NN4BEVrSmRRL1UukL6A

What would be a common switching frequency for a display system power supply?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed