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| Electronic Projects Design/Ideas/Reviews Are you building an electronic project or want to? Maybe you need some assistance? Come and submit your electronic questions here and let our experienced members find a solution. |
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25th January 2005, 05:30 PM
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| New Member    |  square wave to sine wave pls can any one hint me on how to generate sine wave from my square wave inverter base on pwm(pulse width modulation). Secondly , what is the effect of runing inductive load like ceiling fans and electric blenders from a square wave power source. Dose it affect the life span of the garget?
__________________ electronics is my hooby so keep me posted of latests |
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25th January 2005, 05:40 PM
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| Experienced Member  | "TheOne" posted a while back a post about "get a sine wave from a 555timer" The output of a 555 is a squarewave. Bascially (via fourier) all waveforms can be made up of sinewaves of different freq,ampl,shift. The fundemental of a sqarewave is a sinewave - filter out all harmonics above the fundemental As to a sqarewave voltage to an inductive load. There si no problem, this is hopw PWM controller work to control the voltage to a load (since the average level will be reduced by the duty). Only thing to watch out for is to ensure the current through the inductive load has a path to take when the voltage is OFF (ie via a free-wheel diode) |
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26th January 2005, 04:04 AM
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| Experienced Member  | are you trying to build and AC inverter? |
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