Joe Doakes from Como Park emails:<\/p>\n
My Android cell phone makes a noise when I plug it into the charger, kind of a \u201cboink-boink\u201d sound. I plugged it in at work, a few minutes ago. Worked fine, then started making that noise. Quit now. Never does it at home.<\/p>\n
I suspect power fluctuations in this building. I bet every time somebody starts a microwave down the hall, my cell phone senses the power drop and thinks it\u2019s been unplugged, then immediately senses the power rebound and thinks it\u2019s been plugged back in. boink-boink. Boink-boink.<\/p>\n
I mentioned to a buddy who is a Master Electrician. He says:<\/p>\n
\u201cMore likely power factor issues. The power factor is screwed up by all the fluorescent lights and computers. Those are shifting the power so that voltage sine is out of phase with the amperage sign. That’s the power factor. AC electricity flows in a sine wave, if all is well. When a coil load or capacitor load is introduced the impedance and\/or reactance will shift the power out of phase with itself. One shifts the voltage forward, one shifts the amperage forward. As they get out of phase the amperage has to go up to compensate for the loss of actual power because the voltage times amperage of the power as it is actually used is not the same as the multiple of each measured separately. Yes the voltage measured is 120 and amperage measured is 10, but they don’t reach those points simultaneously. As a function of simultaneous use when voltage is 120 amperage is only 9.7 and when it reaches 10.3 the voltage is already sliding back down to 116.5. Your phone and charger may be sensing that.\u201d<\/p>\n
Not power fluctuation, power factor. Well, that\u2019s me told, then. <\/p>\n
Joe Doakes<\/p><\/blockquote>\n
one of the scariest days of my life \u2013 in a completely unrelated story \u2013 when I was when I have an electrician over to my house to look at a circuit that was acting funny. He took it apart, and said “you’re lucky to be alive”.<\/p>\n
Good thing I didn’t have a self on the plug into it!<\/p>\n","protected":false},"excerpt":{"rendered":"
Joe Doakes from Como Park emails: My Android cell phone makes a noise when I plug it into the charger, kind of a \u201cboink-boink\u201d sound. I plugged it in at work, a few minutes ago. Worked fine, then started making that noise. Quit now. Never does it at home. I suspect power fluctuations in this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50965","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"http:\/\/www.shotinthedark.info\/wp\/index.php?rest_route=\/wp\/v2\/posts\/50965","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.shotinthedark.info\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.shotinthedark.info\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.shotinthedark.info\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.shotinthedark.info\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=50965"}],"version-history":[{"count":1,"href":"http:\/\/www.shotinthedark.info\/wp\/index.php?rest_route=\/wp\/v2\/posts\/50965\/revisions"}],"predecessor-version":[{"id":50966,"href":"http:\/\/www.shotinthedark.info\/wp\/index.php?rest_route=\/wp\/v2\/posts\/50965\/revisions\/50966"}],"wp:attachment":[{"href":"http:\/\/www.shotinthedark.info\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=50965"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.shotinthedark.info\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=50965"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.shotinthedark.info\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=50965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}