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Recent content by aProgrammer

  1. A

    [SOLVED] How do I design my IR circuit for digital input.

    I suggest you to increase R2 value, try 12k
  2. A

    Trying to understand working of char pointer

    this can help you : int int_val = 0x12345678;
  3. A

    Help with DC Converter (selection of switching device, several A)

    one solution could be a UC3843 and a MOSFET, see this example (one of many): http://danyk.cz/univ_m_en.html
  4. A

    [SOLVED] Non Inerting amplifier (mcp6004) gain problem

    R448 connected to output is useless here, connect it to PIN 9 !
  5. A

    [PIC] Unknown string Problem?

    I think sizeof("string") don't work like you expect, it return the size of a pointer, NOT THE SIZE OF THE STRING. it is the same that : const char * str = "string"; you can check than sizeof(str) == sizeof("any string") is true you understand ?
  6. A

    [PIC] Where is the error in my code

    I think you should change the declaration : void send_seg(unsigned char,unsigned char, unsigned char,unsigned char); by void send_seg(unsigned char,unsigned char, unsigned char,unsigned char, unsigned char);
  7. A

    Direct conversion RX with mosfets, which magazine is it from?

    ident number is 86093 (printed in french edition), so from this page : http://sites.prenninger.com/elektronik/euro-circuits title could be "Superregenerative short-wave receiver" from January 1986
  8. A

    Direct conversion RX with mosfets, which magazine is it from?

    I found it in Elektor french edition issue October 1986, french title is : "mini-récepteur O.C." I believe english title is "Superregenerative short-wave receiver" published in 1986
  9. A

    absolute value circuits for high frequency (2MHz)

    another old circuit using CA3450 and CA3227 : http://www.next.gr/oscillators/varius-circuits/full-wave-rectifier-(to-10-mhz)-l14507.html
  10. A

    External interrupt and timer0 and timer1 using same time

    required changes into interrupt : if(IOCIF_bit) to if(IOCIF_bit && IOCIE_bit) and if (TMR0IF_bit) to if (TMR0IF_bit && TMR0IE_bit)
  11. A

    TO-92 transistor for HF amplifier, more powerful than pn2222

    MPS3866 is probably more powerfull but also you should understand than (in rf) that output power of a mps918 will be always better than a pn2222
  12. A

    TO-92 transistor for HF amplifier, more powerful than pn2222

    MPS918 (2N918 in TO-92 case) is an example.
  13. A

    [General] Fastest inbuilt ADC available in controllers

    some examples : MC10319 25MSPS TDA8708 (video) CA3318 15MSPS AD9002 125MSPS AD9012 75MSPS ... and many others the fastest I know is the AD9002 (125MSPS)
  14. A

    Help with unknown semiconductor

    probably you should read BDX34B
  15. A

    how is menu made in the following win32 code

    wcex.lpszMenuName = MAKEINTRESOURCE(IDC_WIN32LESSON1); means that menu is loaded from resources (see *.rc file).
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