500W Inverter, 12VDC to 220VAC

<div dir="ltr" style="text-align: left;" trbidi="on"> Attention: This Circuit is using high voltage that is lethal. Please take appropriate precautions<br /> <br /> This circuit you can convert the 12VDC into 220VAC. The 4047 IC is use to generate the square wave of 50hz.<br /> <br /> Circuit diagram<br /> <div class="separator" style="clear: both; text-align: center;"> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmiU2BBmVf49vzHnrN806RJS_j7wmyKEezXJy316aUOp1h8CPJOVRWl82WIz3UymZ6huxFzZ8xnqRgMMzA0AS6ZKGubrUg2CsWFy4qu-_D328PSAm46jIv7bZCeoo5F5A0Q8UpdXFAOs0/s1600/500w-220v-inverter(corrected).gif" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="384" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmiU2BBmVf49vzHnrN806RJS_j7wmyKEezXJy316aUOp1h8CPJOVRWl82WIz3UymZ6huxFzZ8xnqRgMMzA0AS6ZKGubrUg2CsWFy4qu-_D328PSAm46jIv7bZCeoo5F5A0Q8UpdXFAOs0/s1600/500w-220v-inverter(corrected).gif" width="600" /></a></div>  <b>How to calculate transformer rating</b><br /><br />The basic formula is P=VI and between input output of the transformer we have Power input = Power output. <br /><br />For example if we want a 220W output at 220V then we need 1A at the output. Then at the input we must have at least 18.3A at 12V because: 12V*18.3A = 220V*1A, when P1 is 12V*18.3A and P2 is 220V*1A. <br />So  if you have to wind the step up transformer 12V to 220v but input winding must be capable to bear 20A.<br /><br />For this project to produce 220VAC with 500W, we find.<br /><br />Output power is P2 = Output voltage x output current<br />        Output current = 500W/220V<br />                                = +- 2.272A<br /><br />most importance is primary current<br />                           P1 = 12V x current<br />                      500W = 12V x current (I1)<br />                          I1        =  500W/12V<br />                                 = 41.67A<br /><br />So your transformer to must be capatable to support primary current at lease 41.67A and don't forget for 2N3055 max current 15A . At lease 4 pcs for both side, total 8 pcs of 2N3055. <br /><br />try DIY</div>

500W Inverter, 12VDC to 220VAC

Attention: This Circuit is using high voltage that is lethal. Please take appropriate precautions This circuit you can convert the 12VDC ...

Read more »