Microcontroller interfacing, Electrical Engineering

Assignment Help:

The winch uses a 415 Volt 50 Hz AC motor, so both the up/down and run/stop controls actually operate +24V relays, whose contacts switch the 415Vac to the winch. The relays also provide electrical isolation between the LCU and the lift equipment.  In your design you must include suitable interface circuitry to drive the coils of the two 24V relays.

(Note that the 24V power supply and the connections from the relay contacts to the winch are not part of this design problem.)

The  lift position sensor provides a 0 - 5Volt analog signal indicating the position of  the  lift over the range  0.0 to 6.4m. An 8bit ATD converter  converting this signal to a single byte value would give $00 to $FF representing positions 0.0m to 6.375m in steps of 0.025m.

Unless otherwise required (Eg. the relays) all signals require no special buffering to/from the controller. All signals in-to/out-of the controller must be interfaced through a connector, and must provide a 0 Volt (GND) supply reference.


Related Discussions:- Microcontroller interfacing

Embedded system, 10. List the three ways in which an RTOS handles ISRs in a...

10. List the three ways in which an RTOS handles ISRs in a multitasking environment

What is the need of the resistance used in a clipper, Q. What is the need o...

Q. What is the need of the resistance used in a clipper? Resistor is used in a clipper to limit the current through the diode. To avoid the damage due to excessive current thro

What the voltage gains in the fet amplifier, Q. What the voltage gains in t...

Q. What the voltage gains in the FET amplifier? For common source  Voltage gain=V o /V i = - µRd / Rd + rd where µ is the amplification factor,Rd the drain resistance a

Find the line current and voltage across the load, Q. (a) A balanced wye-co...

Q. (a) A balanced wye-connected load with per-phase impedance of 20 + j10 is connected to a balanced 415-V, three-phase supply through three conductors, each of which has a series

Explain power-system loads, Q. Explain Power-System Loads? Figure repre...

Q. Explain Power-System Loads? Figure represents a one-line (single-line) diagram of a part of a typical three-phase power system. Notice the symbols that are used for generato

Control system., how does Proportional band affect the performance of contr...

how does Proportional band affect the performance of control system?

What is the minimum sampling rate, Q. The magnitude spectrum of a continuou...

Q. The magnitude spectrum of a continuous  image is as given below.  a) Sketch the frequency response of the sampled spectrum if   ωs =1.5 ωm along x and 3ωm along  y directions

Edge detector, Edge detector  Apply the Canny edge detector to image c...

Edge detector  Apply the Canny edge detector to image class.png. To compute Canny edges:      help edge     edge(im,'canny',[thres1 thres2],sigma) (i) Compute edges for

Write Your Message!

Captcha
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