<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Hi Darryl</div><div><br></div><div>It has to do with the zero point crossing. </div><div>With pure sine wave, it crosses almost vertical angle so no time spent there. Mod square wave usually has a flat crossing, totally screws certain things up. </div><div><br></div><div>Jay</div><div>Peltz power. </div><div><br>On Apr 24, 2018, at 8:39 AM, Darryl Thayer <<a href="mailto:darylsolar1@gmail.com">darylsolar1@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">I just spoke with my ev car expert, the onboard charger controls charge by he says PWM there has always been a problem with PWM AC control on modified square wave inverters. Causing failures when the switching is coincidental. I forgot the exact reason but I have failed equipment using a modified square wave inverter on portable tool charging equipment. </div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Apr 23, 2018 at 1:45 PM, Ray <span dir="ltr"><<a href="mailto:ray@solarray.com" target="_blank">ray@solarray.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Pretty sure the Magnum will work, since I have a customer with a Chevy Volt running on old Trace SW4024 inverters. Not mod sine, but they're not near as clean as the Magnums either.<br>
<br>
-Ray<br>
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On 4/23/18 12:33 PM, RE Ellison wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I have a customer with a 20-year-old modified sine wave inverter that has been no issue at all until recently when he arrived from New York City with his Chevy bolt<br>
<br>
Obviously the Bolt will not tolerate the modified sine wave and we\u2019re discussing upgrading and we were wondering if the magnum inverter charger would work in this situation?<br>
<br>
Thought that I would check with the knowledge base !<br>
<br>
Thanks<br>
Bob Ellison<br>
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