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Electric Motor Control

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter22: Sequence Control

Section: Chapter Questions

Problem 6SQ: Draw a symbol for a solid-state logic element AND.

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9.56 Using JK flip-flops, design a synchronous counter that counts in the sequence
1, 3, 0, 2, 1, ... The counter counts only when its enable input x is equal to 1;
otherwise, the counter is idle.

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9. Analysis of Synchronous Counters, in the following figure, write the logic equation for each input of each flip-flop. Determine the next state for state 010,011,100,111 as Q2Q1Q0 sequence. FF0 FFI FF2 Ko K, K2 CLK
Task 1: Custom Sequence Counter Using JK Flip Flop, Design a counter circuit that cycles through the sequence: 0, 5, 4, 6, 1, 7, and repeats. Follow these steps: a) State Diagram: Draw a state diagram representing the sequence. Each state should be expressed as a binary number. b) State Table: Create a state table for the counter, detailing current states, next states, and outputs. c) Flip-Flop Input Equations: From the state table, derive the input equations for the flip- flops. Treat any unused states as don't-care conditions. d) Simplification using K-maps: Use Karnaugh maps to simplify the flip-flop input equations. Optionally, verify your simplifications using Multisim. e) Circuit Diagram: Draw the circuit diagram. Task 2: 3-bit Up/Down Counter Using Flip Flop of your choice, design a 3-bit counter that counts up or down based on an input signal X. The counter should behave as follows: Initial State: On powerup, the counter starts at 0. Count Up (X=1): Sequence progresses through…
a) Design a single-digit decade counter that counts from 0 to 9 and repeats. The single-digit decade counter should be built by a cascaded synchronous binary counter (74LS163) and other basic logic gates. Simulate the complete counter circuit by OrCAD and PSPICE. Capture the circuit schematic and the simulated waveform. (Define the simulation timings for at least one full counting cycle from 0 to 9 and back to 0.) (Hint: Use the DigClock input from the SOURCE as shown below and setup the CLK ONTIME and OFFTIME accordingly for the clock source.) 1/6 Pat DigClock Part List OFFTIME = SuS DSTM1 ONTIME = DELAY= STARTVAL = 0 OPPVAL = 1 Sus EUK FleStim AC Lbrajes Design Cache b) Read the specification of 74LS47 (BCD-to-7-Segment Decoder shown in Appendix) to see how the logic IC operates to drive a 7-segment LED display. Draw the circuit connection of the decade counter in (a) and the decoder to display the count value on the 7-segment LED display. Further explain why common anode…
3.) The design size of the synchronous counter sequential (sequential) logic circuit. It will count from 0 to 9 and the son of your student number will not count decimals in two digits. A. List the process steps that you will apply in the design approach. Create the State Chart and State Chart. B. Design the sequential circuit using JK Flip-Flop. Explain each step. Show that it has performed the desired action. last digit student num: 0 4 " Not : I want the solution to contain tables and equations, and the electrical circuit resulting from tables and equations, as in the picture that I attached,And if possible, I want the solution on paper if possible.
Design a modulo-5 ripple (asynchronous) down-counter with D flip-flops and draw the corresponding logic circuit. (i) Build the state diagram and extract the state table(ii)Draw the logic circuit(iii) What is the maximum modulus of the counter?
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Design a modulo-11 ripple (asynchronous) up-counter with negative edge-triggered T flip-flops and draw the corresponding logic circuit. (I)Build the state diagram and extract the state table (II)Draw the logic circuit (III)What is the maximum modulus of the counter?
6) For IC 7493, answer the following questions: a) What is the maximum count length of this counter? b) This is a (ripple, synchronous) counter. c) What must be the conditions of the reset inputs for the 7493 to count? d) This is a(an) (down, up) counter. e) The IC 7493 contains (number) flip-flops. f) What is the purpose of the NAND gate in the 7493 counter?
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2- Using JK Flip flops, a 2-bit counter will be designed that will count down ((11-10-01-00) when the input is "0") and the random sequence given when the input is "1" (00-01-11-10). a) Construct the state table for the sequential circuit. b) Obtain the simplified input equations for flip-flops. c) Draw the logic circuit for the 2-bit counter.

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