What are the difference between an (ordinary switch) and a semiconductor switch such as (thyristor and transistor)
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What are the difference between an (ordinary switch) and a semiconductor switch such as (thyristor and transistor)
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- list of some of the important terms and definition about Metal Oxide Semiconductor Field Effect TransistorExplain the mechanism of how diodes and transistors are used as switches.12. These are semiconductor devices that are primarily used in electronics as electronically controlled switches a. Diodes b. Transistors c. Vacuum Tubes d. Thyristors 13. If an SCR is suspected of not functioning properly, it should be tested a. with power off b. with multimeter set to the diode or high resistance function c. With the SCR leads isolated d. All of the above 14. A thyristor that looks like two back-to-back 4 layer diodes is the a. SCR b. Triac c. SCS d. DIAC 15. A device that has an unstable negative resistance region is the a. UJT b. SCS c. TRIAC d. DIAC
- 5. The transistor is a semiconductor device. A. Two - layer B. one- layer C. four - layer D. three- layer E. npn 6. The basic amplifying action was produced by transferring a current I from a ---- resistance circuit. A. Low to a high B. high to low C. low to low D. high to high E. big to smallFULL WAVE RECTIFIER CIRCUIT: Explain what happens to the “output” LED (i.e. the LED marked “vo”) as the frequency is increased from low frequency (1 Hz) to higher frequencies (closer to the main supply frequency of 50 Hz)Draw a figure of bridge type full wave rectifier power supply. Draw the input and output signals for each layer and briefly explain the purpose of each layer.
- 3- What are the advantages of full wave rectifier comparing to half wave? Note: Please do not handwritten.Convert a dc voltage Q7)------ from one level and a certain polarity to a dc voltage of another level and in some applications to another polarity. Oa. DC-AC Converter Ob. AC-AC converter Oc. DC Chopper Od. AC-DC rectifierList three differences between p-type and N-type semiconductors ((you can use a diagram))
- 11. DIAC and TRIAC are similar in that both devices. a. Can use breakover voltage b. can be used in ac circuits c. are bidirectional d. all of the above 12. These are semiconductor devices that are primarily used in electronics as electronically controlled switches a. Diodes b. Transistors c. Vacuum Tubes d. Thyristors 13. If an SCR is suspected of not functioning properly, it should be tested a. with power off b. with multimeter set to the diode or high resistance function c. With the SCR leads isolated d. All of the above 14. A thyristor that looks like two back-to-back 4 layer diodes is the a. SCR b. Triac c. SCS d. DIAC 15. A device that has an unstable negative resistance region is the a. UJT b. SCS c. TRIAC d. DIACExplain how you could measure the ripple frequency to determine if a diode were open in a bridge rectifier circuit. (own words)The minimum value of anode current below which it must fall to completely turn-off the device is called as the a. switching current value b. latching current value c. holding current value d. peak anode current value
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