HW_3 - voltage e in the electric circuit is proportional to...

This preview shows pages 1–2. Sign up to view the full content.

1 ECE 313 (Spring 2009) Homework #3 (Due: February 9, 2009, Monday, in class) Reading Assignment Reminder: Section 2.8, Section 5.1 – 5.2 Recommended Optional Reading: Section 2.10 – 2.11 Problems: 1) (10 pts) The following figure shows a motor driving a load and also the torque-speed curve for the motor. 1 J and 2 J denote the moments of inertia of the motor and the load, respectively; 1 N and 2 N denote the numbers of gear teeth; 1 D and 2 D denote the constants of viscous friction for the motor and the load, respectively. Find the transfer function, ) ( ) ( ) ( s E s s G a L . Your final answer should include any variables but s . 2) (10 pts) A loudspeaker is an electromechanical system where an electrical signal v is converted into mechanical motion of a membrane, which generates sound. It can be modeled by the electric circuit and mechanical system shown in the following figure. The (induced)

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: voltage e in the electric circuit is proportional to the speed of the mass; namely, x K e 1 . The force f acting on the mass is proportional to the current i in the circuit; namely, i K f 2 . Find the transfer function from the input voltage v to the mass position x , in terms of the parameters R , L , M , b , K 1 , and K 2 . v R L e i f M x b + + 200 25 2 3) (10 pts) Reduce the block diagram shown below to a single block representing the transfer function ) ( ) ( ) ( s R s C s G . Show your intermediate steps. 4) (10 pts) Reduce the block diagram shown below to a single block representing the transfer function ) ( ) ( ) ( s R s C s G . Show your intermediate steps. 4 s...
View Full Document

This note was uploaded on 09/09/2009 for the course ECE 313 taught by Professor Gokcek,c during the Spring '08 term at Michigan State University.

Page1 / 2

HW_3 - voltage e in the electric circuit is proportional to...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online