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Recent content by grittinjames

  1. grittinjames

    W25Q64JW Fast read error using Dediprog

    Hi, Programmer detect this chip correctly by reading its Id, And could not find anything wrong with protocol.
  2. grittinjames

    W25Q64JW Fast read error using Dediprog

    Hi, adding more info.. There is no signal integrity issues, no supply issues, and other series of chips are working fine, \ The identified issues is in fast read, other chip allow us to pause transaction for a while and can continue. and SPI suppose to work like that. But W25Q64JW causing...
  3. grittinjames

    W25Q64JW Fast read error using Dediprog

    Hi, I and using Dediprog to read certain register from W25Q64JW by fast read command. It is always reading second byte after a pause 0xFF from SPI, But actual data is 00. and this pause introduces by Dediprog SF100 due to some buffering issue. If someone have any clue please help Thanks
  4. grittinjames

    AC CMC for DC application

    Hello all, I am in a search of high voltage DC Common mode choke, However could not find many with more than 100V DC rated. I could find varies values and rating for AC CMC, Please anyone tell me if I can use it for my DC
  5. grittinjames

    20V dc to 60V dc & 90 to 265V ac Xenon tube flasher circuit

    Is there any way to club together? so that it operates for AC and DC , Can have two different connector fo AC or DC
  6. grittinjames

    20V dc to 60V dc & 90 to 265V ac Xenon tube flasher circuit

    Hi, Any one have simple solution for DC and AC Xenon tube flasher in same board? Schematics or idea will be great help
  7. grittinjames

    MOSFET Switching - Short Circuit Protection (need help)

    Hi, Please find Maxims Application note, It will do what you are looking for, https://www.maximintegrated.com/app-notes/index.mvp/id/2158 There are many similar products available for high side drive with shortcircuit protection, LT also have some chips PROFET™: Smart High Side Switches from...
  8. grittinjames

    atmega8L industrial grade smd

    Hi, We have some old stock of atmega8L 2000pcs at throw away price, all are original unused parts, Please call me if interested
  9. grittinjames

    RS-485 Surge Protection , any as SM712?

    You can use a small value polyfuse and a TVS, Also will get some idea from below TI s aplication notes\ https://www.ti.com/lit/an/slla292a/slla292a.pdf
  10. grittinjames

    Excell Macro maximizing event code

    Hi, I need to run a excell VBA code each time it is maximised. Is there any way to do that? Thanks Grittin
  11. grittinjames

    Use a extra chip select to address larger RAM size?

    I am currently addressing a 128Mbit flash using 24 address lines, 8 data lines, and 1 chip select line (the processor has 2 chip selects). What does the external logic look if I want to use a second chip select line to create a high address line? I want to use a 256Mbit flash. I tried it and...
  12. grittinjames

    Synchronous Buck using Atmega8 and IR2110

    Hello, I am strugling with a design of synchronous buck converter using Atmega8 timer1 and IR2110. I am facing problem withlack of dead time. Some one please help me how we can introduce dead time in Timer1 fast PWM mode
  13. grittinjames

    New age Induction lamps

    Hi, Please send to grittinjames@yahoo.com Thanks a lot for your help
  14. grittinjames

    1.2 to 5Volt self oscillating

    Hi I am seein 1.2V to 5volt mobile charger. They havnt used any costly IC. They used one small mosfet and some general component. Do any one having similar circuit? Please help me to find one Thanks Grittin
  15. grittinjames

    [SOLVED] Displaying Current in 2 digit

    Hi, I want to display current measured in 2 digit. Please suggest me how to do it. nominal current sensor voltage is 2.5V. and from thr 25mv per Amps. I want to display this in two digit from 1 to 20amps.I need help only in convertion to digit. I have program to display the digits. I am using...

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