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  1. dlkosmas1

    Calculating Scr's characteristics

    Hi to all, I have a problem i would like some help if anyone knows. I would like to learn how to calculate a Scr's characteristics for power cirquits. Lest say for example we have a half-way single-phase rectifier. If i want the transition times to be 2mS or 50uS and the Scr should have 1.2...
  2. dlkosmas1

    Gas sensor

    I would like to make a gas sensor(CO2). Anuone has any idea if there are any Ics on the market?I searched on the net but i didnt find anything.
  3. dlkosmas1

    Obsolete ICs (Motorola C05 series)

    Does anyone know where can i find some motorola's (now freescale) mcu MC68HC705C8A? They are not produced any more and i have only found some sites but they want me  to order hunderds of pieces.
  4. dlkosmas1

    Tssop package -> DIP

    Thank you MP,i found what i was looking for but they are very expensive.Isn't there any way to use a TSSOP package in my breadboard test circuit besides using a converter?
  5. dlkosmas1

    Tssop package -> DIP

    I would like to know if i can make a ic in tssop (or other package) to fit in a breadboard,that only accepts dip packages.Is there any kind of adaptor in the stores that i can purchase or should i try and make my own?
  6. dlkosmas1

    Digital Counter

    TO moderator:PLease move this thread to the appropriate column.I posted it here by mistake
  7. dlkosmas1

    Digital Counter

    Ok,i did it using 4 D flip flop and present state-Next state tables.Then with Karno maps i found the logical equation for each output(LED) Complex but yet doable. It is easy to do it using a microprossecor.I just want to start programmin PLDs.
  8. dlkosmas1

    Digital Counter

    MP:the outputs are connected to LEDs which i want ot be turned ON using the outputs from the flip flops. thnx for the .pdf
  9. dlkosmas1

    Digital Counter

    NO IT IS A SPECIFIC SEQUENCE OF NUMBERS,FOR EXAMPLE : 2,5,8,2,9,1 AND THEN START OVER
  10. dlkosmas1

    Digital Counter

    Yes i could,but i dont want to.I want to design it from scratch using D or JK flip flops
  11. dlkosmas1

    Digital Counter

    Does anyone know how to design a digital counter that produces a specific number of non-sequential number? for example( decimal) : 1,5,3,7,9,12 and then repeat it using flip flops? If you know any good site i would appreciate it
  12. dlkosmas1

    Serial IN,Parallel Out

    Any good serial in,parallel out ic?
  13. dlkosmas1

    Monitor's Led blinking

    My monitor's led is blinking and i get no picture.Anyone have any idea about what it might be the cause? The rest pc is ok
  14. dlkosmas1

    Piezoelectric Transducers

    Yes mixos,you are right,I connected the mc34017 ic (telephone ringer) to a piezoelectric transducer and it worked perfectly.
  15. dlkosmas1

    Piezoelectric Transducers

    Does anyone know what a Piezoelectric Transducer is?
  16. dlkosmas1

    ATX power supply

    Any good site for repairing an ATX power supply?
  17. dlkosmas1

    DTMF transceiver connection

    That's the one i have.unfortunately the datasheets and application notes dont provide information for connecting it to the telephone line.
  18. dlkosmas1

    DTMF transceiver connection

    Well,a Transceiver can transmit DTMF tones and receive,as well. You enter the number in a binary form and you get the DTMF tone in the output.Also,if you use it for receiving DTMF tones,you get the binary form of the number that you,or someone else send through the telephone.It has registers...
  19. dlkosmas1

    DTMF transceiver connection

    It is a Transmiter-Receiver and it is Transceiver, not transciever.
  20. dlkosmas1

    DTMF transceiver connection

    In a word,DTMF are those musical tones you hear when you are dialing a telephone number.Every DTMF signal is a mixture of two tones with different frequencies(one HIGH and one LOW freq.).With a DTMF transceiver you can decode( DTMF to binary) DTMF signals and encode(Generate).Thus,connecting it...
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