{"id":86,"date":"2018-12-21T06:52:02","date_gmt":"2018-12-21T06:52:02","guid":{"rendered":"https:\/\/oriccabattery.wordpress.com\/?p=86"},"modified":"2018-12-21T06:52:02","modified_gmt":"2018-12-21T06:52:02","slug":"a-very-brief-introduction-to-electrical-terminology","status":"publish","type":"post","link":"https:\/\/www.oriccabattery.co.uk\/Blog\/archives\/86","title":{"rendered":"A Very Brief Introduction to Electrical Terminology"},"content":{"rendered":"\n

\nEach AC\/DC power adapter is specifically designed to accept a certain AC\n input (usually the standard output from a 120 V AC outlet in your home)\n and convert it to a particular DC output. Likewise, each electronic \ndevice is specifically designed to accept a certain DC input. The key is\n to match the DC output of the adapter to the DC input of your device. \nDetermining the outputs and inputs of your adapters and devices is the \nhard part.<\/p>\n\n\n\n

\n Power adapters are a bit like canned food. Some manufacturers put a \nlot of information on the label. Others put just a few details. And if \nthere is no information on the label, proceed with extreme caution.<\/p>\n\n\n\n

\n The most important details for you and your delicate electronics are \nthe voltage and the current. Voltage is measured in volts (V) and \ncurrent is measured in amps (A). (You\u2019ve probably also heard about \nresistance (\u03a9), but this doesn\u2019t usually show up on power adapters.)<\/p>\n\n\n\n

\n dc power connectors – round<\/p>\n\n\n\n

\n To understand what these three terms mean, it helps to think of \nelectricity as water flowing through a pipe. In this analogy, the \nvoltage would be the water pressure. Current, as the term implies, \nrefers to the flow rate. And resistance relates to the size of the pipe.\n Tweaking any of these three variables increases or decreases the amount\n of electrical power sent to your device. It\u2019s important because too \nlittle power means your device won\u2019t charge or operate correctly. Too \nmuch power generates excess heat, which is the bane of sensitive \nelectronics.<\/p>\n\n\n\n

\n The other important term to know is polarity. For direct currents, \nthere is a positive pole (+) and a negative pole (-). For an adapter to \nwork, the positive plug must mate with a negative receptacle or vice \nversa. Direct current, by nature, is a one-way street, and things just \nwon\u2019t work if you try to go up the downspout.<\/p>\n\n\n\n

\n If you multiply the voltage by the current, you get the wattage. But \nthe number of watts alone won\u2019t tell you if the adapter is right for \nyour device.<\/p>\n\n\n\n

\n If the manufacturer was smart enough (or compelled by law) to include \nthe DC output on the label, you are in luck. Look at the \u201cbrick\u201d part of\n the adapter for the word OUTPUT. Here, you\u2019ll see the volts followed by\n the direct current symbol and then the current.<\/p>\n\n\n\n

\n The DC symbol looks like this: <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\n To check the polarity, look for a + or \u2013 sign next to the voltage. Or,\n look for a diagram showing the polarity. It will usually consist of \nthree circles, with a plus or minus on either side and a solid circle or\n C in the middle. If the + sign is on the right, then the adapter has \npositive polarity:<\/p>\n\n\n\n

\n To check the polarity, look for a + or \u2013 sign next to the voltage. Or,\n look for a diagram showing the polarity. It will usually consist of \nthree circles, with a plus or minus on either side and a solid circle or\n C in the middle. If the + sign is on the right, then the adapter has \npositive polarity:<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"dc<\/figure>\n\n\n\n

\n If there is a \u2013 sign on the right, then it has negative polarity:<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"dc<\/figure>\n\n\n\n

\n Next, you want to look at your device for the DC input. You\u2019ll usually\n see at least the voltage near the DC plug receptacle. But you also want\n to make sure the current matches, too.<\/p>\n\n\n\n

\n You might find both the voltage and the current elsewhere on the \ndevice, on the bottom or inside a battery compartment cover or in the \nmanual. Again, look for the polarity, by either noting a + or \u2013 symbol \nor the polarity diagram.<\/p>\n\n\n\n

\nRemember: the input of the device should be the same as the output of \nthe adapter. This includes polarity. If the device has a DC input of \n+12V \/ 5.4A, get an adapter that has a DC output of +12V \/ 5.4A. If you \nhave a universal adapter, make sure it has the proper current rating and\n that you choose the correct voltage and polarity.<\/p>\n\n\n\n

\n>>>>>>>>Buy Laptop Adapter Online<\/a>
<\/p>\n","protected":false},"excerpt":{"rendered":"

Each AC\/DC power adapter is specifically designed to accept a certain AC input (usually the standard output from a 120 V AC outlet in your home) and convert it to a particular DC output. Likewise, each electronic device is specifically designed to accept a certain DC input. The key is to match the DC output … Continue reading “A Very Brief Introduction to Electrical Terminology”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[205],"class_list":["post-86","post","type-post","status-publish","format-standard","hentry","category-tips","tag-electrical-terminology"],"_links":{"self":[{"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/posts\/86","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/comments?post=86"}],"version-history":[{"count":0,"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/posts\/86\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/media?parent=86"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/categories?post=86"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/tags?post=86"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}