|i am doing project based on the microcontroller ... am giving analog output from sensor to the adc
and from ADC am connect..................[:=> Show Contents <=:]|
Created at: Tuesday 08th of January 2013 12:28:55 AM
Last Edited Or Replied at :Tuesday 08th of January 2013 12:28:55 AM
| 8085 stepper motor control ppt ,
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|ppt on steppe..................[:=> Show Contents <=:]|
Posted by: seminar surveyer
Created at: Friday 31st of December 2010 05:13:45 AM
Last Edited Or Replied at :Friday 31st of December 2010 05:13:45 AM
| lookup table adc 0808 interfacing ,
microcontroller based 3ph scr firing angle control methods,
sample and hold circuit ,
scr using microprocessor8085 firing control,
|heck the output of zero crossing detector.|
2. If the output is zero , goto step 1.
3. Send signal to Sample Hold circuit.
4. Provide some delay for acquisition time.
5. End the logic pulse of S/H.
6. Switch on the multiplexer connected with the analog input.
7. Give the Start of Conversion pulse to ADC-0808
8. Check the End of Conversion pin of ADC-0808.
9. If EOC=0, goto step 8.
10. Store the value at data bus of ADC0808 in accumulator (A) of 8085.
11. Compare the value stored in A with the values saved in the look-up table and store the value of
corresponding firing angle.
12. Loa..................[:=> Show Contents <=:]
Posted by: project report helper
Created at: Friday 22nd of October 2010 03:36:32 AM
Last Edited Or Replied at :Friday 22nd of October 2010 03:36:32 AM
| Microprocessor ,
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In this project we attempt to design a simple ADC/DAC card which can be easily interfaced with
8085 microprocessor kit for Data Acquisition(DAQ) purposes. We extent our work by designing a
Commerical ADC/DAC cards can cost hundreds of dollars, not viable for teaching purposes. This
ADC/DAC card, which is much cheaper can be used for various purposes such as to obtain the
characteristics of various devices like BJT, diode, MOSFET, inverter .It can be used w..................[:=> Show Contents <=:]