Please solve with steps **Problem Statement:**For the circuit below, \( V_{\gamma} = 0.7V \) and \( \beta = 120 \). Design the BJT (Bipolar Junction Transistor) circuit to operate as a switch that turns on and off a motor that has an equivalent resistance of \( 55 \Omega \) when it is running. The switch should be ON when \( V_{\text{in}} = 4V \).**Circuit Description:**- **Components:** - A BJT transistor used as a switch. - A motor with an equivalent resistance of \( 55 \Omega \). - A power supply providing \( +8V \) for the motor. - A resistor \( R_B \) connected to the base of the transistor. - Input voltage \( V_{\text{in}} = 4V \) used to control the transistor.- **Operation:** - The transistor is configured in a common-emitter configuration. - The input voltage \( V_{\text{in}} \) is applied to the base resistor \( R_B \). - The transistor turns on, acting as a closed switch to power the motor, when \( V_{\text{in}} = 4V \).**Objective:**Determine the appropriate value of the base resistor \( R_B \) to ensure the transistor fully turns on when the input voltage is 4V.**Graphical Elements:**- The schematic shows a typical BJT switch setup where the motor is connected in series with the collector.- Power supply (+8V) is positioned above the motor, indicating it powers the motor through the transistor.- The resistor \( R_B \) connects the input voltage \( V_{\text{in}} \) to the base of the transistor.**Design Considerations:**The transistor should saturate when \( V_{\text{in}} = 4V \) to engage the motor fully. Calculate \( R_B \) using the known \( \beta \), \( V_{\gamma} \), and current requirements for saturation based on the motor's resistance.

Answered: Image /qna-images/answer/1e713a9e-ea53-4ccb-a7c2-e095bbb9e0fc.jpg

4.) For the circuit below, V, = 0.7V and ß = 120. Design the BJT circuit to operate as a switch that turns on and off a motor that has an equivalent resistance of 550 when it is running. The switch should be ON when Vin = 4V. 수+8V Motor 550 Vin RB

4.) For the circuit below, V, = 0.7V and ß = 120. Design the BJT circuit to operate as a switch that turns on and off a motor that has an equivalent resistance of 550 when it is running. The switch should be ON when Vin = 4V. 수+8V Motor 550 Vin RB

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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