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Recent content by YAS_HASHI

  1. Y

    Does the color of solar batteries change according to load?

    I have a question about solar batteries. Solar batteries change light energy to electric energy. If load condition changes, the output power of electric energy will change. Then does the input power of light energy change? Change of the input power of the energy means change of the absorption...
  2. Y

    Maximum current a Relay can handle?

    Relays (or contactors) for EV can handle very high current up to 800A. Panasonic and Gigavac are famous.
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    How to select from batteries or dc input . High Current (50A)

    You should use ideal diode circuits such as LTC4359. It uses external N-Channel Mosfet and can control from logic level. http://cds.linear.com/docs/Datasheet/4359f.pdf
  4. Y

    effect of frequency on various devices......

    In fact, some people discussed about changing the frequency in Japan last year. In Japan people use 50Hz in east area and 60Hz in west area. But because of the Fukushima trouble, there was lack of electric power in 50Hz area. So some people planed to send 60Hz AC to east area. But because of the...
  5. Y

    [SOLVED] Trying to identify this 100A isolated PCB mounting current sensor IC

    It looks like allegro current sensor IC. **broken link removed**
  6. Y

    Increasing Current of source

    Re: Increasing Current of sorce How about Down Converter of 50% Duty? I think it can achieve 90% efficient...
  7. Y

    Parallel port programming

    Sorry, I didn't know that 'OUT' function can be used in FREEBASIC. I was very confused ten years ago when I moved from win98SE to winXP.
  8. Y

    Parallel port programming

    Under windows98, you can use outp and inp functions. https://msdn.microsoft.com/en-us/library/733szwah.aspx The port number of Parallel port is written in this page. https://en.wikipedia.org/wiki/Parallel_port But I can't test on my computer(Windows7).
  9. Y

    using com port in visual c++ 2008

    Look at this page. https://msdn.microsoft.com/en-us/library/windows/desktop/aa363201(v=vs.85).aspx
  10. Y

    Parallel port programming

    We can't use Parallel port directly in Windows NT series and later. Only Windows 95 series, we can use Paralell port directrly. Install parallel port driver like this. https://sourceforge.net/projects/winparport/
  11. Y

    using com port in visual c++ 2008

    Use CreateFile , WriteFile and ReadFile function in "winbase.h". You can use COM port like a file.
  12. Y

    luminosity sensors interfacing

    I always use "Aardvark" to evaluate I2C deveice. https://www.totalphase.com/products/aardvark_i2cspi/ It's easy to comunicate with I2C deveice from PC. C/C++ Library is available in Windows, Mac and Linux.
  13. Y

    pll for induction heater

    Cutoff freq is determined from the speed of turning. (and phase noise you need) Span of the PLL freq is determined from span of the VCO and the voltage span of the controller. If the cutoff freq of LPF is low, step responce of the freq turning is slow.
  14. Y

    Power supply circuit design

    It's easy to use Linear Regulator IC. AC220V => Transformaer => AC9V => bridge Rectifier => DC 12~14V unregulated => Linear Regulator IC => DC5V **broken link removed** Be careful for cooling of Regulator IC. You need heatsink.
  15. Y

    Power supply circuit design

    Hi MOHANMMED. You should write Input Specifications. DC input ? AC100V? AC200V? And how match efficiency do you need? It's needed to decide topology. Switching PS or Linear PS?
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