Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Search results

  1. Qaisar Azeemi

    warming up an electrical genarator

    Hi, I can't find appropriate category for my this question. I request you to answer. why is it necessary to warm up an electrical generator for a few seconds before transferring the load on it? what if we directly put load on the generator without warming it up? A Quick response will be...
  2. Qaisar Azeemi

    i want to impliment PI and PID controllers using microcontroller, please help

    Hi all friends, I want to implement PI and PID controllers using microcontroller to make a CCPWM (Constant current pulse width modulator). need to make an algorithm for it. help required from experts thank you Qaisar
  3. Qaisar Azeemi

    Proteus ISIS suddenly Crashes on Simulation

    Hi, I am using Proteus8.1 sp1 on my windows 7. I also checked it on windows 8 but on both It Suddenly Crashes after few mints of simulation. To solve the Problem I have Completely Uninstalled it along with its all traces using revo uninstaller and regedit from my system and reinstalled it...
  4. Qaisar Azeemi

    light wave length and refrective index relationship in Fiber optics

    hi all; i dont know if it is a right place for this post or not but i think it is related to basic electronics. i want to know about the relationship between light wave length and refractive index of the material. is the refractive index a changing property of the material?? if yes then why? if...
  5. Qaisar Azeemi

    post processor problem in orcad

    hi! i am using orcad9.2 for my design. i am facing a problem in post processor. when i completed my routing i went to options--> post processor settings and get a blank screen with no layer defined???? now i am looking for how to proceed next to make my gerber file. i need guidance of experts...
  6. Qaisar Azeemi

    Error in whole layout in orcad9.2, error after DRC and not making gerber file......

    hi all! i have designed a whole layout in orcad layout plus. but in the end when i try to make gerber file it gives the option that gerber viewer can't open the gerber file. it is giving the following errors as shown in the picture below. here it is showing many errors in each connection. i...
  7. Qaisar Azeemi

    [SOLVED] getting footrint error in orcad 9.2

    hi; i made a simple power supply circuit in orcad9.2 capture cis and after that i assign footprints to the components from existing liabraries and then made its netlist and open it in layout but in layout it give me the following compilation errors for most of the components: electrical package...
  8. Qaisar Azeemi

    help required in cadance orcad

    Hi! I mostly use Proteus for my schemetic capture and ares for pcb design. but now i want to learn cadance orcad because it is more powerful tool than proteus. kindly tell me where should i take start in cadance orcad to learn it? there are many other tools are given with cadance orcad, i.e...
  9. Qaisar Azeemi

    [SOLVED] frequency counter using pic16f877a

    HI; i want to count the pulses using pic16f877a. the pulses are being fed into pin RA4. i want to use timer interrupt for that so that other functions performed by the mico should not disturbed. the frequency is displayed on the LCD Screen. kindly help me with Mikro C code. thanking you in...
  10. Qaisar Azeemi

    my mikro c pro for pic is showing error 392...

    hi all; i am using pic16f877a in a project. for software i am using Mikro c pro for pic. now this is giving me a strange error... i don't know how to solve it.. i tried my best to solve it but cant understand... plz c the image below for the error: kindly tell me why this error occurs i.e...
  11. Qaisar Azeemi

    DC regulators can't drive car headlight DC bulb... why?

    Hi; I often use various voltage regulators (lm78xx and lm338 and lm2576 etc) to bias and power different electronic circuits; but when i use these regulators to drive a DC 21W car headlight bulb all of these fail to drive it. for 78xx family i use various combinatios i.e; two 7812 in parallel...
  12. Qaisar Azeemi

    High voltage problem with lead acid battery charger

    Hi all; Following is the design of my pb-acid battery charger that i've designed to charge 24v, 100AH pb-battries with a current of 10A approx. first i used 10A, 24v transformer with the circuit but it could deliver 6.3A hardly and the voltages at the transformer o/p terminals also dropped...
  13. Qaisar Azeemi

    measurement of AC line voltages using PIC16F877A

    Hi friends! I want to measure the AC line voltages 220V using pin RA5 of Pic16F877A, and display it on LCD Screen. kindly help me with circuit diagram and code. i also studied the mikrochip application note AN521 bu't cant get any specifice solution. they just add a 5M ohm resistor in series...
  14. Qaisar Azeemi

    [SOLVED] saving data perminantly in pic16f877a

    Hi all! i want to save my data in the eeprom of pic16f877a. here is my code. i don't know where i am going wrong. kindly help me. here is the part of my code for your ease. please ignore declerations. i am writing the full code related to eeprom. void main() {...
  15. Qaisar Azeemi

    reading frequency using pic16f877a

    Hi all; i want to measure the frequency of a sin wave passed through HEF4093BE NAND gate Schmitt trigger to be furnished and this frequency is feeded into pin RA2 of PIC16F877A; and from this pin i want to read the frequency. i made the following code for that purpose but instead of reading the...
  16. Qaisar Azeemi

    [SOLVED] mikro c button function code is not working

    Hi; i am using four buttons with my PIC16F877A microcontroller. i am using button function if( Button(&PORTD,0,100,0)) in order to detect Logic 0 by a keypress but it is not detecting it. here is my code: // INPUTS #define enter PORTD.F0 #define reset PORTD.F1 #define up PORTD.F2 #define...
  17. Qaisar Azeemi

    [SOLVED] problem in MikroC code for LCD

    Hi! i am using mikoC PRO for PIC v5.6.1 and programming a 16x2 LCD display using PIC16F877A. wana display data on lcd but getting errors. since i am in learning process so using engineers garage code. #define RS PORTD.F4 //RD4 #define EN PORTD.F5 //RD5 #define Lcdport PORTC //lcd data...
  18. Qaisar Azeemi

    [SOLVED] How to programm PIC with Genius 540 programmer

    HI all! i am new to PIC micro controllers and using pic16f877a to learn using pic controllers. i have burnt the Hex file in my pic16f877a using Genius 540 Universal programmer. when i try to load my hex file it ask me the information about my file; that; is it hex (motorola), hex (intel)...
  19. Qaisar Azeemi

    solar power calculations required.

    HI, i want to run 100W load with solar Energy for 24 hours. sunlight here is available for 8hrs only. now how much watt solar panel that i should use and how much Capacity (AH) pb batteries are required for that purpose. can solar panel charge the batteries in day light when no sunlight is...
  20. Qaisar Azeemi

    How to measure the wattage and VA of Powersupplies and UPSes??

    HI; i want to measure the wattage of my own designed power supply That i've designed usign 4 LM338 ICs in parallel. moreover how can i find the wattage/VA of different powersupplies/Invertors/UPSes that use Transistors or MOSFETs in parallel. is it enough that i just add the given wattage in...

Part and Inventory Search

Top