Explain the difference between a linear power supply and a switch-mode power supply
What will be an ideal response?
The linear power supply uses a transformer and a four-diode full-wave bridge rectifier to produce the pulsing DC output waveforms. A capacitor is used as a filter to smooth out the DC. The remainder of the circuit contains a regulator and the load. The regulator is the part of the circuit that makes a linear power supply different from the newer switch-mode power supplies. The linear power efficiency is quite poor, in the range of 30% to 40%.
Switch-mode power supplies
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Al instalar un aparato montado en superficie que pese más de 50 libras,
a. siempre debe soportarse de manera independiente a la caja de distribución. b. puede ser soportado por la caja de distribución si la caja esta especificada para más de 50 libras. c. puede ser soportado por una caja estándar de distribución sin soporte adicional. d. puede afianzarse a una caja estándar de distribución si se sujeta firmemente
Why is it necessary to check the calibration of a gauge manifold periodically?
What will be an ideal response?
Shearing strength is measured in ____.
A. foot-pounds per square inch B. pounds per square inch C. pounds per linear inch D. foot-pounds per linear inch
Which device is used to connect an 8-bit input device to the computer's data bus?
A) a demultiplexer B) a three-state octal buffer C) an octal latch D) a multiplexer