difference between sinewave and square wave

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difference between sinewave and square wave

Post by volter on Sat Aug 28, 2010 6:33 pm

Posted by seven on April 14, 2010 at 11:11am


mtnong ko lng mga mster wat po diffrence between sinewave nd square wave???

my nbasa kc ako xa electronic enthusiasts n buk yung 12v dc convert to ac volts...

tas nkanote dun na limited lng dw kya nyang supply kc ang output dw ng circiut ay square wave ang kya nya ay lamps, elctrc fans, and heating devices ..

taz my ntry cla n tv ngwork dw pro it will not guarantee bka dw mkcause ngdamage xa mga applience...

bkit b gnun???

volter
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Re: difference between sinewave and square wave

Post by volter on Sat Aug 28, 2010 7:16 pm

Reply by hertz on April 14, 2010 at 4:59pm
sa symbol palang malalaman mo na ang kaibahan

for square wave - it is a waveform that rises quickly to a particular amplitude, remains constant for a time period and drops fast at the end.
In digital systems, square waves are the norm, because they represent a binary digit (0 or 1). Square waves can also be generated in musical synthesizers and have a raspy sound.

for the sine wave - it is a continuous, uniform wave with a constant frequency and amplitude. it is wave whose amplitude is the sine of a linear function of time. It is plotted on a graph that plots amplitude against time or radial degrees relative to the angular rotation of an alternator.
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ito naman ang modified sine wave


kong may tanong naman kayo
What is the difference between sine wave and modified sine wave?

Alternating current (AC) has a continuously varying voltage that swings from positive to negative. This has great advantages in power transmission over long distances. Power from your power company is carefully regulated to be a perfect sine wave, because that is what naturally comes out of a generator, and also because sine waves radiate the least amount of radio power.
On the other hand, a sine wave is expensive to make in an inverter, and many sine wave techniques use heavy, inefficient transformers. The most inexpensive way to make AC is to switch it on and off--a square wave. A modified sine wave is scientifically designed to simulate a sine wave in the most important respects so that it will work for most appliances. It consists of a flat plateau of positive voltage, dropping abruptly to zero for a while, then dropping again to a flat plateau of negative voltage, back to zero for a while, then returning to the positive voltage.

Reply by hertz on April 14, 2010 at 5:19pm
ganito para mas madali mong maintindihan

ang square ay isang uri ng Supply na DC na nag o oscillate (umaandar at hindi) na may exact time interval of resting time
may constant siyang polarity + & -
kong baga rapid of polarized supply ( - + - + - + - + .... & so on ) in a couple of times


sa sine wave naman yan ang uri ng supply for AC application (60hz)
wala siyang constant polarity (-/+ or +/-)
kong baga rapid of nonpolarized supply

sa modified sine wave naman sinadya siyang baguhin ang waveform amplitude niya para magkaroon ng sine wave replacement. takenote: modified sine wave is not really 100% accurate

Reply by hertz on April 14, 2010 at 6:22pm
na explane ko na yata lahat
maliban na lang sa mga tanong mo tungkol sa inverter circuit

uunahin ko ito:
limited lng dw kya nyang supply kc ang output dw ng circiut ay square wave ang kya nya ay lamps, elctrc fans, and heating devices .. ?

hindi lang naman ang class of waveform lang ang pagbabasihan kong anong kaya ng inverter circuit mo
sa power rating ka rin dapat magbasi at sa kanyang current rating din
halimbawa ang power rating ng inverter mo ay 100W -- ibig sabihin niyan ang kaya niyang load ay up to 100W lamang ang kayang i handle na LOAD
sa current rating naman nagbabasi yan sa current rating ng output transformer mo (size of x'former)

another question:
taz my ntry cla n tv ngwork dw pro it will not guarantee bka dw mkcause ngdamage xa mga applience...
bkit b gnun???


kong ang inverter mo ay square wave hindi talaga guaranteed na gamitin yan sa mga electronic type (semiconductor contain) bakit ? kong iisipin mong mabuti diba sa AC line input palang halimbawa ang TV very lower less thin magnetic wounded na ang naka couple sa mga chopper transformer may tendency na masunog yun dahil iba ang application ng AC kaysa sa DC

Reply by mayalin143 on April 19, 2010 at 10:27am
iBa KaSi Ang ApPliCaTiOn nG AC aT DC WiRe

Ang CopPer WiRe Ng DC aY pWeDEnG pWedE gAmiTin sA AC pEro AnG AC coPpEr wiRe Ay HiNdi PwEde gAmiTinG sA DC aPpliCatioN dAhiL mAsuSunOg iTo, yAn Ang isA sa MgA dAhilAn nG pAgkAkA iBa niLa, isA nA riN diYan Ang bEhaVior nG dALawA

Reply by P-I-C on April 23, 2010 at 3:50pm
isa pud sa kalahinan nila kay mas distorted ang AC kaysa sa DC, medyo malinis ang DC kaysa sa AC
kaya nga nilalagyan ang mga AC circuits ng mga noise filtering device pariha anang mga inductor ex. line filter ug uban pa

Reply by seven on April 27, 2010 at 10:07am
NOh pla mangyari if mgkaslubong xa isang circuit ang AC at DC???

Reply by Volter on April 27, 2010 at 5:23pm
anong mangyayari ? depende iyan sa circuit design application

volter
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