7. A yellow colored LED with a forward voltage drop of 2.1IV is to be connected to a 5.0V stabilized DC power supply. Calculate the value of the series resistor required to limit the forward current to less than 10mA. Also calculate the current flowing through the diode if a 1002 series resistor is used instead of the calculated first.

7. A yellow colored LED with a forward voltage drop of 2.1IV is to be connected to a 5.0V stabilized DC power supply. Calculate the value of the series resistor required to limit the forward current to less than 10mA. Also calculate the current flowing through the diode if a 1002 series resistor is used instead of the calculated first.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter59: Motor Startup And Troubleshooting Basics

Section: Chapter Questions

Problem 12SQ: How is a solid-state diode tested? Explain.

See similar textbooks

Similar questions

What is CEMF?
How is a solid-state diode tested? Explain.
A 10 V Zener diode is used to regulate the voltage across a variable loadresistor. The input voltage Vs varies between 13 and16 V. The loadcurrent (??) varies between 10 and 85 mA. The minimum Zener current is15 mA. Findi. The maximum value of Rsii. The maximum power dissipated by the Zener diode, using the value ofRs.
(a) Calculate the current at t = 0+ in the circuit as shwon if R1 is changed to 5 Ω. (b) Calculate IF, IR, and the storage time expected when the diode is switched off at t =10 μs if τT =250 ns.
7/ A diode rectifier is example of a bilateral circuit. Select one: True False
Use Figure 7.1. What is the current gain of a 2N3904 when the collector current is 100 mA and the junction temperature is equal to 125°C?
The mode of operation for the D-MOSFET is Select one: a. the ohmic region only b. the enhancement mode only c. both the depletion and enhancement modes d. the depletion mode only
The primary to secondary turns ratio of a transformer used in a Half wave rectifier is 20:1. The primary is connected to the power line: 220V, 60Hz, and the load resistor is 2kΩ 1.) What is the average voltage of the rectified signal 2:) the diode current is what
If forward bias flyback diode voltage drop is0.6 Vand Q1 switches off, what will be the maximum voltage that the transistor Q1 will be subject to? [express your answer in V] Answer:
In an electronic laboratory, a diode rectifier tube has a plate resistance of 500 ohms (assumed constant) and is connected as a half – wave rectifier to a load of resistance 1500 ohms. The energizing supply voltage is 460V, 60Hz effective. Determine the average load voltage.
Calculate the power rating of a zener diode connected across load working in reverse biased condition when the breakdown occurs at the current twice the test current, where VZ = 30 V, VZK =28.5V, IZK= 2mA, IZ= 10mA . Also calculate the minimum load resistance value with input voltage at Vs= 60 V and series resistance 450ohms.
A step-down transformer supplies 25Vrms to a simple half wave rectifier power supply which is connected to a load resistance of 912ohm. The diode breakdown voltage, Vf is 0.7 V. Calculate the peak signal voltage received by the diode