Deytermine what is the minimum allowed load resistance rl

Assignment Help Electrical Engineering
Reference no: EM13290027

Defaults:Ambient temperature TA = 25oC. 40W
power transistor with TJMAX = 225oC, cooled by‘top
hat' heat sink with θCA = 5oC/W.

An ideal class-B amplifier is required for a RL = 5Ω load.

(a) Using the default power transistors, determine the minimum supply rail voltage required if TJ < 105oC is required.

(b) If the supply rail voltage VS = (+-) 12V what is the minimum allowed load resistance RL and maximum power that these transistors (as
constrained) can deliver to the load?

Reference no: EM13290027

Questions Cloud

What is the horizontal distance from the wall : A cannon fires a cannonball from the top of a wall at a speed of 25.58 m/s and an angle of 17.44 degrees from the horizontal. What is the horizontal distance from the wall where the fired cannonball hits the ground
Explain carbonic acid then ionizes in water : Carbonic acid then ionizes in water (Ka1 = 4.5× 10-7). Ignoring Ka2, estimate K for the overall process by which CO2 and H2O form H and HCO3-.
What is the firms wacc given a tax rate : Its cost of equity is 19 percent, the cost of preferred stock is 6.5 percent, and the pre-tax cost of debt is 7.5 percent. What is the firm's WACC given a tax rate of 34 percent?
Communication competence analysis : Communication Competence Analysis
Deytermine what is the minimum allowed load resistance rl : (a) Using the default power transistors, determine the minimum supply rail voltage required if TJ
At what initial speed must he shoot to make the basket : A basketball player practices shooting three pointers from a distance of 7.63 m from the hoop, At what initial speed must he shoot to make the basket
Which one of the following will increase net working capital : Which one of the following will increase net working capital? Assume the current ratio is greater than 1.0.
How far did the shot-put travel in the horizontal direction : a shot putter threw a shot-put with a speed of 13.4 m/s at an angle of 43 above the horizontal. How far did the shot-put travel in the horizontal direction
Explain napo4 solution is necessary to completely react : Consider the following precipitation reaction 2 Na3(PO4)2(aq) + 3CuCl2(aq) ----> Cu3(PO4)2 (s) + 6 NaCl (aq). What volume of 0.168 M NaPO4 solution is necessary to completely react with 91.4 mL of 0.117 M Cucl2

Reviews

Write a Review

Electrical Engineering Questions & Answers

  What is the output power of the final amplifier stage

Three amplifiers with power gains of 15, 22 and 7 ate cascaded. The input power is 120 micro-W. What is the output power of the final amplifier stage

  How many ways are there to draw 3 resistors from a box

Calculate the probability of drawing 3 10 k resistors from a box of 500 resistors, where 495 are 100 k resistors and 5 are 10 k . Use your results from part (a) and (e) to find this probability. How many ways are there to draw 3 resistors from a bo..

  Define a sinusoidal voltage has a maximum value

A sinusoidal voltage has a maximum value of 100V, and the value is 10V at t=0. The period is T=1ms. Determine v(t)

  Calculate is and the current i for v for a pn junction

Calculate Is and the current I for V = 700 mV for a pn junction for which Na = 1017 / cm³, Nd = 1016 / cm³, A = 200 µm², ni = 1.5 x 10^10 / cm³, Lp = 5 µm, Ln = 10 µm, Dp = 10 cm² / s, and Dn = 18 cm² / s

  Write the vhdl code implementing a 6-bit synchronous counter

Write the VHDL code implementing a 6-bit synchronous counter with enable. The design should include the output to be connected to the next stage Then update the code to include an asynchronous reset.

  What is the loss in each part if a second mosfet is added

A MOSFET is used in a boost-buck converter. The on-state loss is 4.2 W, and the switching loss is 2.8 W. The device is in TO-220 heat-sink package. it is desired to avoid a heat sink, and a parallel connection has been suggested.

  Find total energy of scattered photon and scattered electron

if a 2.000Å (.2nm) photon interacts with the bound electron in an hydrogen atom (binding energy 13.6 eV) with a Compton collision. The electron moves forward in the same direction as the incident photon. It may be convenient to use hc 12408eV

  Find the self inductances l1 and l2 and mutual inductance

2 coils are 80% magnetically coupled for a magnetic system. Suppose that coil 1 is excited by AC voltage V1=200 v with current I1=1 A, all in rms values at 60Hz, while coil 2 is open and receives an induced voltage V2 = 50 v in rms.

  Find the location and the value of the third charger

Charges +Q and +3Q are seperated by a distance 2m. A third charge is located such that the electrostatic system is in equilibrium. Find the location and the value of the third charger in terms of Q.

  What is the distance between the slits

Two slits produce fringes on a screen that is at a distance of 2.05 m from the slits. When the wavelength is 608 nm, the fringTwo slits produce fringes on a screen that is at a distance of 2.05 m from the slits. When the wavelength is 608 nm, the f..

  How many turns are required for a circular loop

How many turns are required for a circular loop of 100-mm radius to develop a peak emf of 10mV if the loop rotates 30r/s in the earth's magnetic field Take B = 60E-6T.

  Calculate voltage regulation and efficiency of the line

A 3-phase transmission line series load of 2000MVA, .8 p.f. lag at 735 kv. The ABCD parameters of the line are : A = .8746 =D, B = j128.33Ω, C = j.0018315 (s). Calculate Vs, Is, voltage regulation and efficiency of the line.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd