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Recent content by invexed

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    How to generate ns programmable delay

    Hi There !! I'm trying to use the CoolRunner-II CPLD XC2C256 propagation delay to create adjustable delays of several ns duration. I can not use FPGA because the cost is too high compared with a CPLD Such delays are typically used in physical experiments to detect the arrival of 2 events...
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    Questions on real and imaginary array for FFT implementation

    Re: FFT implementation Thanks Echo47 !!! I have try your "mag=sqrt(real*real+imag*imag)" and it works making ABS(real) it works too but i'm not sure if this is ok I'm trying with a C function and it works ok with and without imaginary part!! Making Imaginary part=0 y have a duplicate...
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    Questions on real and imaginary array for FFT implementation

    Re: FFT implementation Thanks viswa!!! if you can post your matlab code i'll try it.... I have some FFT examples in matlab but i cant see how to work this: ---------------------------------------------------------------------------------- t=1:200; sin1=sin(2*pi*30/1000*t)...
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    Questions on real and imaginary array for FFT implementation

    Hi all !! I'm tring to make a litte FFt application I'm tring with visual C++ first and later i'll try with my C microcontroller compiler I have some questions... First of all, it seems to be necessary to have a complex array with real and imaginary values I have an array with a full...
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    Flash bootloader for PIC18f and 16f devices

    microchip flash botloader Hi, I'm trying to program a pic 18F8720 with a microchip bootloader i have found this aplication note from microchip website: Flash bootloader for PIC18f and 16f devices (an851) and some source files to make this bootloader Author: Ross M. Fosler and Rodger Richey...
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    200W 85 to 250V Power supply design

    200W 85 to 250V Power supply design Thanks HARDCORE for your suggestion this is a good idea !!! Are you shure of CRT Monitors with autoswitching and 100 to 230 Watt ?? I always thought that this kind of monitors never consume more than 50 or 60W You know where can i find some scheme ...
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    200W 85 to 250V Power supply design

    Hi, i need to know the best configuration to do a 200W with 85 to 250V input and 24V output power supply I have try a push pull but with a TL494 control (cheap IC), need very high voltage Power mosfets but is a "simple" design (2 exciter signals are ground refered and no need isolated...
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    I need some information on HI-TECH PICC 8.01

    hi tech I want it also....... ^_^
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    Where can I buy a high frequency PLL IC ??

    More PLLs Try this: SA7025 philips (The best) MB1506 fujitsu (Good but only 500Megs) MB1507 fujitsu (More frecuency than 1506) SDA3302 Siemens (Good but big steps) TSA5511 = SDA3302
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    How to get 4MHz square wave from 20MHz crystal & inverte

    Re: help:design clock 4MHz Use a 4Mhz and 1 or 2 cmos inverters if you could'n obtain a square wave maybe you need a capacitor between Vdd and Vss
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