tag:blogger.com,1999:blog-6850103531860448581.post4912328320445581909..comments2024-01-31T09:09:55.123-08:00Comments on Lubor On Tech: Is It Time for DC Power?Lubor Ptacekhttp://www.blogger.com/profile/08543751955416339809noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-6850103531860448581.post-8663702771556117512013-10-17T02:06:03.496-07:002013-10-17T02:06:03.496-07:00Led’s has revolutionized the whole world with the ...Led’s has revolutionized the whole world with the quality of light and ability to work on DC. moreover the operation and maintenance cost are the key factors, which made led’s more popular. Ryan Conorhttp://www.adattsi.com/induction-lightingnoreply@blogger.comtag:blogger.com,1999:blog-6850103531860448581.post-20861349198825299712013-06-06T20:28:37.826-07:002013-06-06T20:28:37.826-07:00Interesting. But not as practical as it sounds...
...Interesting. But not as practical as it sounds...<br /><br />AC has one advantage... Converting it from 110 (or 230V) to a lower AC voltage was relatively easy with a very simple device - a transformer - magnetic - or now more common - electronic.<br /><br />The problem with DC in the home is, is what voltage do you standardize on? 12V (Car)? 5V (USB) Both have the problem that in order to transfer sufficient energy the wires need to be really thick. Secondary issue is if the current is high enough you can weld or start a fire...<br /><br />Higher voltage requires converters again, and anything above about 48V has safety risks when exposed to body contact. And DC/DC converters are more expensive, and then there is the problem of groundloops if they don't isolate their outputs...<br /><br />Transformers do implicitly isolate the outputs from the inputs.<br /><br />On the other side... DC motors are easier to control in speed, and I suspect they are used more than we know in washing machines etc. Whether AC or DC wouldn't matter for electric stoves (although AC is easier to be used for triac/thyristor circuits)<br />Mauricehttps://www.blogger.com/profile/04984259326082093224noreply@blogger.comtag:blogger.com,1999:blog-6850103531860448581.post-10086609080523203092013-06-04T15:40:47.943-07:002013-06-04T15:40:47.943-07:00Interesting idea. Consolidated Edison provided par...Interesting idea. Consolidated Edison provided parts of NYC with DC until as late as 2007: http://cityroom.blogs.nytimes.com/2007/11/14/off-goes-the-power-current-started-by-thomas-edison/Doug Varleyhttps://www.blogger.com/profile/13730826975906793931noreply@blogger.com