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Recent content by coolhand21

  1. C

    fully protected H bridge

    Hi I'm looking for a fully protected h bridge, logic level control, 1.7amp or greater current and a supply voltage min of 4v. The only device I found was drv8800 that was close. but the supply min is 8v. thanks cool
  2. C

    Output Short circuit protection in Half Bridge

    small current a resetable fuse, 1-2amps protected mos, > 2amps over current protection in power line cool
  3. C

    ceramic vs tantalum caps

    I did not expect a different between the two types (the tan was 2.2uf and the ceramic was 4.7uf). The tantalum in this case was clearly better. cool
  4. C

    ceramic vs tantalum caps

    is that because of the series inductance
  5. C

    ceramic vs tantalum caps

    ceramic vs tantalum as a filter caps I need to remove noise above 10mhz, which type would be perfered? thanks cool
  6. C

    VB6 Sending a binary file throuh mscomm problem

    Hi I'm having problem sending a binary file using mscomm, The code reads a binary file from my hard drive and then sends the file out through the a comm port. I can read the file, but I cannot send out a byte at a time. I would like to place a slight delay after each byte. How do I create...
  7. C

    HELP need c guru : extern variable declaration in data.h

    Hi I would like to declare a variable in a data.h and be able to use in other modules.c -------------------------------------------- data.h #ifndef _DATA_H_ #define _DATA_H_ int foo = 10; #endif -------------------------------------------- #include "data.h" extern int foo; void main {...
  8. C

    help: precison timing period in C

    any other suggestions
  9. C

    help: precison timing period in C

    Hi I would like to create timing period of 250ns. then use multiples to create different intervals such as 1us or 10us Using C is there a method? I can use nop, but for long intervals >100us it would not be pretty. btw my clk 24mhz, thanks cool
  10. C

    low cost methods to measure temperture and pressure

    Hi I'm exploring methods to measure temperature and pressure, My temperature range is between 40- 180 degrees f and and my pressure range is between -10 to 30 psi. What low cost methods are available? cool
  11. C

    help iir filter coefficents generated in scilabs

    Hi given a single pole butterworth filter how would one generate the coefficents for a filter (iir). using scilabs? I plan to use this in a microcontroller, so any help would be appreciated? thanks cool
  12. C

    Help with Eagle: Snap to grid

    still know luck cool
  13. C

    Help with Eagle: Snap to grid

    Hi I have a design in eagle, on my schematic my nets will not connect to the part. I tried zooming in to place the part on the grid and varies ulp from the eagle site same results. Are there any other solutions? thanks
  14. C

    clock input pins signal integrity

    I would expect a sine wave with a voltage level dependent on the cpu core requirerments
  15. C

    clock input pins signal integrity

    it seem to, but it looks much differnt than what I seen before cool
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