Lab 11

Given that the base address is FoH. 1. Create a new asm project “Lab2_Q1.asm". Assume that port A of 8255A PPI is connected to 8085. Write assembly code to send the value of FFH to FoH. Enter a delay of 2 ms for each transmission.

Q3. Answer the following questions T 1. Compared to the bipolar voltage-switching scheme, the unipolar scheme is "effectively" doubling the switching frequency. Explain the statement's meaning and how this effect can be generated. 2. What are the properties of a good power switch, and what are its basic ratings? 3. What are the objectives of any PWM strategy for three-phase inverters? 4. Why is the current control PWM rectifier in the dq rotating reference frame preferred over the abc reference frame? 5. Define the switch utilization factor. Show how this factor can be calculated for different single-phase inverters for square wave operation mode at the maximum rated output.

Construct the state diagram...

The following data are transmitted in a serial communication system (P is the parity bit). What parity is being used in each case? a. ABCDEFGHP = 010000101 b. ABCDEFGHP = 011000101 c. ABCDP = 01101 d. ABCDEP = 101011 e. ABCDEP = 111011

Give the Answers of following questions, 1: without reducing implement the following Boolean expression using basic gatesY Y= (A' B)'+A+BC   2: Reduce the following Boolean expression using Boolean algebra. Y = (A+BC)' (AB'+ (ABC)')   3: Explain the construction and working of the Depletion MOSFET, with characteristics curve.

Netid 73:common in all addresses 73.0.0.8 73.22.17.25 73.0.0.1 73.255.255.254 Block 73.0.0.0 73 255 255 255 Switch Network address: 73.0.0.0/8 73.255.255.255 (Special) (H.W) An address in a block is given as 180.8.17.9. Find the number of addresses in the block, the first address, and the last address.

WR* = 1 for an I/O read bus operation.  True  False

Need a solu

Problem 1(a). Given the BIT circuit helow determine the voltages at the base and collector, and Ihe currents at the base and emitler. Assume 8- 120. (10 poinis) 15V R-6k Ru:- 90k lu Va Ra 45k Re- 4k Ans. Va In- Ve- Problem 1(b). Using the same circuit given in Problem 1, assume B= z (infinity). calculate the collector voltage and emitter curent. (S points) Ars. Ve=

Q. No 3. In a Public Switch Telephone Network (PSTN), how the analog speech signal is converted to digital signal in the PCM? Also highlight the main functions of the given parts in the PSTN figure. Public Switched Trelephone Network PSTN W7CLOUD.COM Central Office

(b) A student wanted to extract NMOS device parameters Vtn and kn empirically. The student formed a diode-connected NMOS as shown below and measured Ids at different values of Vds . The student plotted a graph of Vldsvs Vds as shown below.

5 plzz

Show work on paper please