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surajbarkale

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About surajbarkale

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  • Birthday 04/20/1982
  1. Use CAM Processor to produce Postscript Files (.PS) of the layers you need. You can convert this file to any suitable graphics format you need. Personally I convert it to PDF so I don't run into problems
  2. C, Assembly & VB whatever is appropriate for the task :)
  3. It should be ok 'C' indicates commertial range & 'P'/'N' indicate package type (I believe P stands for Plastic & 'N' for ceramic). If you get hold of datasheet these differences will be mentioned.
  4. You don't need the address/data lines in exact order. Your circuit will function normaly. I generally reversr the D0-D7 lines on a 8051 board because they are easier to route that way ;D
  5. Check your multimeter. If you are measuring DC voltage on AC range some multimeters display double the value (this was true with older analog ones). While measuring AC ripple put a 0.1uF cap in series with probes.
  6. Okey so next time I should say it's a TRIAC without gate ;D Anyway, I have used BC547 with base removed in a light dimmer project instead of DIAC. The project is still working (Don't know how though ;D).
  7. I hope this is what u want - http://www.kmitl.ac.th/~kswichit/LFrobot/LFrobot.htm try goolging with 'line folloer robot' for more such links :)
  8. Regardless of other things, the energy stored in a capacitor is too less to charge the battery. You shall need capacitance in Kilo or Mega :o Farads to charge the battery ;D
  9. You need a RF mixer for this. Check out the circuit in tunar of a TV. It is an excellant example of a downconverter. With little modifications you can use it for your frequency range.
  10. DIAC is a 3 layer device N-P-N (take a transistor cut base lead & you get a cheap DIAC ;D). You can also view it as two zeners connected back to back. There was a topic about DIAC some days ago you can search this forum for details.
  11. Check out CD4033 it has internal counter & 7 segment decoder. You can use 74hc244 to interface it with a bus. But the discrete logic makes it cumbursome to mux display lines (you need too many IC's). And eventually cost of all IC's will equal a microcontroller. ;D
  12. The common base configuration works because collector can provide same current as emitter without caring for the load voltage. Indeed collector acts as a constant current source. You can not operate emitter this way so at the max you will get an attenuator. In fact you can view a voltage regulator as the backwards transistor. And i don't think it offers any gain ;D
  13. Check http://www.sourceforge.net you may find something there. Off the topic also check http://humorix.org/ quite funny. ;D
  14. SAW filters provide accurate filter characteristics which are not influenced by temperature. Also the tolerance from one filter to another is very small. If RC / RL filter is used in it's place it would be very difficult to tune it (forget about replacing it ;D). Check this out http://www.oki.com/en/otr/html/nf/otr-158-15-2.html
  15. Check out Practicle Transistor Circuit Design & Analysis By - Willems E. Gerald (PS - I am a looser when it comes to spelling ;D ) If you can lay your hands on it. It is the best book to learn transistor design from. Of cource Basic Electronics by Malvino is also a good book but he explains design in very short manner. Better refer to it after you have read the first book.
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