Computer Parts: SMPS

What does SMPS stand for in the context of computers?

• Software Managed Power System

• Single-Mode Power Supply

• System Management Power Supply

• Switched-Mode Power Supply

What is the main function of an SMPS in a computer?

• Increase processor speed

• Control fan speed

• Regulate voltage output

• Convert AC power to DC power

Explain the difference between linear power supply and SMPS.

• Linear power supplies use batteries for voltage conversion and regulation.

• SMPS use mechanical switches for voltage conversion and regulation.

• Linear power supplies convert AC to DC through high-frequency switching.

• Linear power supplies use a transformer for voltage conversion and regulation, while SMPS convert AC to DC and regulate output voltage through high-frequency switching.

What are the typical output voltages provided by an SMPS?

• 3.3V, 5V, 24V, 36V

• 1V, 2V, 6V, 8V

• 4V, 7V, 10V, 15V

• 3.3V, 5V, 12V, 24V

How does an SMPS regulate the output voltage?

• By comparing the output voltage to a reference voltage and adjusting the duty cycle of the switching signal.

• By changing the frequency of the switching signal

• By using a mechanical regulator

• By adjusting the input voltage directly

What are the common components found in an SMPS?

• transformers, rectifiers, filters, voltage regulators, control circuits

• sensors, actuators, microcontrollers, displays, memory modules

• amplifiers, oscillators, antennas, modulators, demodulators

• inductors, capacitors, resistors, transistors, diodes

What is the purpose of the fan in an SMPS?

• To charge the battery

• To provide lighting

• To play music

• To cool down the components and prevent overheating.

Describe the process of converting AC to DC in an SMPS.

• Amplification, modulation, and demodulation

• Oscillation, synchronization, and attenuation

• Rectification, filtering, and regulation are the key steps in converting AC to DC in an SMPS.

• Encoding, decoding, and multiplexing

What safety features are usually included in an SMPS?

• EMI filtering

• reverse polarity protection

• overload protection

• overvoltage protection, undervoltage protection, overcurrent protection, short circuit protection, thermal protection

How can you troubleshoot common issues with an SMPS?

• Clean the monitor screen

• Check power cord, inspect fuse, examine capacitors, test output voltage, consult professional technician if needed

• Replace the CPU

• Reset the BIOS settings