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Recent content by yoyo

  1. Y

    what's the difference b/w electrical n electronics

    electrical and electronics devices - difference Samcheetah is correct. Electronics is a subset of Electrical which also embrasses Communication (including Telecomunication), Electromagnetics, Electric Machines (Motor + Generator), Power Electronics, Digital, DSP, Micro Processor...
  2. Y

    Looking 4 Transistor with internal current limit protection

    I am looking for this beast with internal current limit protection (between 250mA to 500mA). Something like LP395. But the LP395 current is only 100mA. Does anyone know any part like this? Thanks in advance. yoyo
  3. Y

    How can i find the roots for this equation ?

    Mathematically, it was proven by a genius (Galois) more than 200 years ago that, "in general", there exists no solution for any polynomial equation of degree 5 or more. Sound strange? It's just that we can not separate the unknown x = (some means of algebraic manipulation. e.g +, -, *, /...
  4. Y

    Spice Model for LM2672 needed

    lm2672 Anyone has the Spice Model for this converter LM2672? Thanks, Yoyo
  5. Y

    28V Discrete with 50mA limit

    28v discrete switch I need a simple circuit that could switch either 28V and 0V with 50 mA current limit. Any idea? Any simple IC can do this? Thanks!
  6. Y

    Looking for information about wire size and current rating

    awg 28 ampacity I am looking for info on the wire gauge vs current/voltage rating. Anyone knows a look-up table somewhere? Thanks in advance yoyo
  7. Y

    Need help: One shot circuit

    Thanks all! Sometimes 4013 works, sometimes it does not, I guess depending on output Q. I am not sure how 555 is set up. Not sure if Reset pin of Max706 will stay Low after the first input pulse, whether or not subsequent pulses apply.
  8. Y

    Need help: One shot circuit

    cd4013 one shot I need to find a logic circuit with output High upon power up. The output will be Low when a pulse is applied to the input. The output will stay Low even subsequent pulses apply to the input. The 555 monostable doesnot work. Any idea???

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