// API callback
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CircuitsTune"},"subtitle":{"type":"html","$t":"A birth place of electronic schematic circuit diagram"},"link":[{"rel":"http://schemas.google.com/g/2005#feed","type":"application/atom+xml","href":"https:\/\/www.circuitstune.com\/feeds\/posts\/default"},{"rel":"self","type":"application/atom+xml","href":"https:\/\/www.blogger.com\/feeds\/4092621447904023766\/posts\/default\/-\/Simple+Circuit?alt=json-in-script\u0026max-results=6"},{"rel":"alternate","type":"text/html","href":"https:\/\/www.circuitstune.com\/search\/label\/Simple%20Circuit"},{"rel":"hub","href":"http://pubsubhubbub.appspot.com/"}],"author":[{"name":{"$t":"Unknown"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"generator":{"version":"7.00","uri":"http://www.blogger.com","$t":"Blogger"},"openSearch$totalResults":{"$t":"4"},"openSearch$startIndex":{"$t":"1"},"openSearch$itemsPerPage":{"$t":"6"},"entry":[{"id":{"$t":"tag:blogger.com,1999:blog-4092621447904023766.post-2980423361207832151"},"published":{"$t":"2015-09-03T08:17:00.000+06:00"},"updated":{"$t":"2015-09-12T01:31:29.833+06:00"},"category":[{"scheme":"http://www.blogger.com/atom/ns#","term":"+12V"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Ac to DC"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Converter"},{"scheme":"http://www.blogger.com/atom/ns#","term":"LM7812"},{"scheme":"http://www.blogger.com/atom/ns#","term":"LM78XX"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Power Circuit"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Power supply"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Simple Circuit"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Voltage Regulator Circuit"}],"title":{"type":"text","$t":"12v Regulated Power Supply Circuit Diagram"},"content":{"type":"html","$t":"\u003Cdiv dir=\"ltr\" style=\"text-align: left;\" trbidi=\"on\"\u003E\n\u003Cdiv \u003E\n\u003C\/div\u003E\n\u003Cdiv  \u003E\n\u003Cspan \u003EHere this circuit diagram is for \u003Cb\u003E+12V regulated (fixed voltage) DC power supply\u003C\/b\u003E. This\u0026nbsp;\u003Cb\u003Epower supply circuit diagram\u003C\/b\u003E is ideal for an average current requirement of \u0026nbsp;1Amp. This\u0026nbsp; circuit is based on IC \u003Cb\u003ELM7812\u003C\/b\u003E. It is a 3-terminal (+ve) voltage regulator IC. It has short circuit\u0026nbsp; protection , thermal overload protection.\u0026nbsp; LM7812 IC is from LM78XX series. The LM78XX series IC is\u0026nbsp; positive voltage regulator IC \u003C\/span\u003E\u003Cspan style=\"color: black; font-size: small;\"\u003Efor different voltage requirements, for example \u003Ca href=\"http:\/\/www.circuitstune.com\/2011\/11\/5v-regulated-power-supply-circuit.html\"\u003ELM7805\u003C\/a\u003E IC is made for \u003Ca href=\"http:\/\/www.circuitstune.com\/2011\/11\/5v-regulated-power-supply-circuit.html\"\u003E5 volt fixed output voltage\u003C\/a\u003E . There is LM79XX IC series for negative voltage .\u003C\/span\u003E\u003C\/div\u003E\n\u003Cdiv  \u003E\n\u003Cspan \u003E\u003Cbr \/\u003E\n\u003C\/span\u003E\u003C\/div\u003E\n\u003Cdiv  \u003E\n\u003Ch3\u003E\nCircuit diagram of 12v regulated power supply\u003C\/h3\u003E\n\u003C\/div\u003E\n\u003Ctable align=\"center\" cellpadding=\"0\" cellspacing=\"0\" class=\"tr-caption-container\" style=\"margin-left: auto; margin-right: auto; text-align: center;\"\u003E\u003Ctbody\u003E\n\u003Ctr\u003E\u003Ctd style=\"text-align: center;\"\u003E\u003Cspan \u003E\u003C\/span\u003E\u003Cbr \/\u003E\n\u003Cspan \u003E\u003C\/span\u003E\u003Cbr \/\u003E\n\u003Cspan \u003E\u003Ca href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEjjrNe8TGk6EETeZYOghXKEdatCaYwz9QF8tanbQFFW0EQVIetHYuBKZ6PbG44oSor7us-ZddhCQkuS9fAcVBgo3GmEEjwRM3-hoM-nWA4ZadCuwnPd-uIj5ySkvamgi2DC7ZgKJl5Kvyo\/s1600\/12V-regulated-power-supply-circuit-diagram.png\" imageanchor=\"1\" style=\"margin-left: auto; margin-right: auto;\"\u003E\u003Cimg alt=\"12 volt power supply circuit\" border=\"0\" src=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEjjrNe8TGk6EETeZYOghXKEdatCaYwz9QF8tanbQFFW0EQVIetHYuBKZ6PbG44oSor7us-ZddhCQkuS9fAcVBgo3GmEEjwRM3-hoM-nWA4ZadCuwnPd-uIj5ySkvamgi2DC7ZgKJl5Kvyo\/s1600\/12V-regulated-power-supply-circuit-diagram.png\" title=\"12v regulated power supply circuit diagram\" \/\u003E\u003C\/a\u003E\u003C\/span\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003Ctr\u003E\u003Ctd class=\"tr-caption\" style=\"text-align: center;\"\u003E\u003Cspan \u003E\u003Ci\u003EFig: 12V power supply circuit diagram\u003C\/i\u003E\u003C\/span\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003C\/tbody\u003E\u003C\/table\u003E\n\u003Cdiv  \u003E\n\u003Cspan \u003E\u003Cbr \/\u003E\n\u003C\/span\u003E\u003C\/div\u003E\n\u003Cdiv  \u003E\n\u003Cspan \u003E\n\u003C\/span\u003E\u003C\/div\u003E\n\u003Cdiv  \u003E\n\u003Ca name='more'\u003E\u003C\/a\u003E\u003Cspan \u003EA transformer(Tx=Primary 230 Volt, Secondary 12 Volt , 1Amp step down transformer) is used to covert 230V to 12V from mains. Here used a bridge rectifier made by four\u0026nbsp; 1N4007 or 1N4003 diode to \u003Ca href=\"http:\/\/www.circuitstune.com\/search\/label\/Ac%20to%20DC\" target=\"_blank\"\u003Econvert AC to DC\u003C\/a\u003E . The filtering capacitor 1000uF,25V is used to reduce the ripple and \u0026nbsp;get a smooth DC voltage. This circuit is very easy to build. For good performance input\u0026nbsp; voltage should be greater than 12Volt in pin-1 of IC LM7812. Use a heat sink to IC LM7812 for safeguarding it \u0026nbsp;from overheating.\u003C\/span\u003E\u003C\/div\u003E\n\u003C\/div\u003E\n"},"link":[{"rel":"edit","type":"application/atom+xml","href":"https:\/\/www.blogger.com\/feeds\/4092621447904023766\/posts\/default\/2980423361207832151"},{"rel":"self","type":"application/atom+xml","href":"https:\/\/www.blogger.com\/feeds\/4092621447904023766\/posts\/default\/2980423361207832151"},{"rel":"alternate","type":"text/html","href":"https:\/\/www.circuitstune.com\/2011\/12\/12v-power-supply-circuit-diagram.html","title":"12v Regulated Power Supply Circuit Diagram"}],"author":[{"name":{"$t":"Unknown"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"media$thumbnail":{"xmlns$media":"http://search.yahoo.com/mrss/","url":"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEjjrNe8TGk6EETeZYOghXKEdatCaYwz9QF8tanbQFFW0EQVIetHYuBKZ6PbG44oSor7us-ZddhCQkuS9fAcVBgo3GmEEjwRM3-hoM-nWA4ZadCuwnPd-uIj5ySkvamgi2DC7ZgKJl5Kvyo\/s72-c\/12V-regulated-power-supply-circuit-diagram.png","height":"72","width":"72"}},{"id":{"$t":"tag:blogger.com,1999:blog-4092621447904023766.post-7580783217014884510"},"published":{"$t":"2012-09-22T22:03:00.004+06:00"},"updated":{"$t":"2012-12-20T01:06:25.357+06:00"},"category":[{"scheme":"http://www.blogger.com/atom/ns#","term":"+5V"},{"scheme":"http://www.blogger.com/atom/ns#","term":"AC-DC"},{"scheme":"http://www.blogger.com/atom/ns#","term":"LM7805"},{"scheme":"http://www.blogger.com/atom/ns#","term":"LM78XX"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Power supply"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Simple Circuit"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Voltage Regulator"}],"title":{"type":"text","$t":"7805 Voltage Regulator Circuit"},"content":{"type":"html","$t":"\u003Cdiv dir=\"ltr\" style=\"text-align: left;\" trbidi=\"on\"\u003E\n\u003Cdiv style=\"text-align: justify;\"\u003E\nA \u003Cb\u003Evoltage regulator\u003C\/b\u003E is used to produce a constant linear output voltage. It’s generally used with AC to DC power supply. And also it can be used as well as a \u003Ca href=\"http:\/\/www.circuitstune.com\/2011\/12\/12-to-5-volt-dc-dc-converter-circuit.html\" target=\"_blank\"\u003EDC to DC voltage converter\u003C\/a\u003E . To regulating low voltage, most used device is one single IC. 7805, 7812, 7905 etc. 78xx series are design for positive and 79xx series are for Negative voltage regulator. \u003C\/div\u003E\n\u003Cbr \/\u003E\n\u003Cdiv style=\"text-align: justify;\"\u003E\n\u003Cb\u003E7805\u003C\/b\u003E is a three terminal +5v voltage regulator IC from 78XX chips family. See \u003Ci\u003E\u003Cb\u003E7805 pinout\u003C\/b\u003E\u003C\/i\u003E below. LM78XX series are from National Semiconductor. They are linear positive voltage regulator IC; used to produce a fixed linear stable output voltage.\u0026nbsp; National Semiconductor has also negative voltage regulator chips family, they indicate with LM 79XX. 78xx is used more than 79xx because negative voltage has a few usability purposes as we see.\u003Cbr \/\u003E\nI was previously posted a \u003Ca href=\"http:\/\/www.circuitstune.com\/2011\/11\/5v-regulated-power-supply-circuit.html\" target=\"_blank\"\u003E5v regulated power supply circuit using 7805 IC\u003C\/a\u003E, that circuit and this \u003Ci\u003E\u003Cb\u003E7805 voltage regulator circuit\u003C\/b\u003E\u003C\/i\u003E is almost the same.\u003C\/div\u003E\n\u003Cbr \/\u003E\n\u003Cbr \/\u003E\n\u003Ch3\u003E\nCircuit diagram of 7805 Voltage Regulator\u003C\/h3\u003E\n\u003Cbr \/\u003E\n\u003Ctable align=\"center\" cellpadding=\"0\" cellspacing=\"0\" class=\"tr-caption-container\" style=\"margin-left: auto; margin-right: auto; text-align: center;\"\u003E\u003Ctbody\u003E\n\u003Ctr\u003E\u003Ctd style=\"text-align: center;\"\u003E\u003Ca href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEiEWtFvSM_HtrzDhcXj9SuLmLqyN7Wwo3NuEkK-GaCgk0swNiKbZGU32er7NVjrgTptfs5IETFVgnwEYzhxD89oNTUymGQ0GDt8vAFzHBlxzfZ6lCiFKPCXT9SwSWK6QKEskF1LcVVsMnI\/s1600\/7805-Voltage-Regulator-Circuit-Diagram.jpg\" imageanchor=\"1\" rel=\"nofollow\" style=\"margin-left: auto; margin-right: auto;\" target=\"_blank\"\u003E\u003Cimg alt=\"\" border=\"0\" src=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEiEWtFvSM_HtrzDhcXj9SuLmLqyN7Wwo3NuEkK-GaCgk0swNiKbZGU32er7NVjrgTptfs5IETFVgnwEYzhxD89oNTUymGQ0GDt8vAFzHBlxzfZ6lCiFKPCXT9SwSWK6QKEskF1LcVVsMnI\/s1600\/7805-Voltage-Regulator-Circuit-Diagram.jpg\" title=\"\" \/\u003E\u003C\/a\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003Ctr\u003E\u003Ctd class=\"tr-caption\" style=\"text-align: center;\"\u003E\u003Ca href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEiEWtFvSM_HtrzDhcXj9SuLmLqyN7Wwo3NuEkK-GaCgk0swNiKbZGU32er7NVjrgTptfs5IETFVgnwEYzhxD89oNTUymGQ0GDt8vAFzHBlxzfZ6lCiFKPCXT9SwSWK6QKEskF1LcVVsMnI\/s1600\/7805-Voltage-Regulator-Circuit-Diagram.jpg\" rel=\"nofollow\" target=\"_blank\"\u003EFig: 7805 Voltage Regulator Circuit\u003C\/a\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003C\/tbody\u003E\u003C\/table\u003E\n\u003Cdiv style=\"text-align: left;\"\u003E\n\u003C\/div\u003E\n\u003Cbr \/\u003E\n\u003Ca name='more'\u003E\u003C\/a\u003E\u003Cbr \/\u003E\u003Cbr \/\u003E\n\u003Ch3\u003E\n7805 pinout \u003C\/h3\u003E\n\u003Cbr \/\u003E\n\u003Ctable align=\"center\" cellpadding=\"0\" cellspacing=\"0\" class=\"tr-caption-container\" style=\"margin-left: auto; margin-right: auto; text-align: center;\"\u003E\u003Ctbody\u003E\n\u003Ctr\u003E\u003Ctd style=\"text-align: center;\"\u003E\u003Ca href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEgtp6DnJtd24MaeAovPq-AGneek7JbApKIHC_pTTnhJGxk5PstTC1r7pvNS122CIEqMZA53YQ6p-diBBQXW4BmmXQNIxCRRtmF5U_SSSZo03Dk5OMmovkJ2YAClY3fD0dW0taiz1PZeFD4\/s1600\/7805-Voltage-Regulator-Pinout.jpg\" rel=\"nofollow\" target=\"_blank\"\u003E\u003Cimg alt=\"7805 pinout, pin diagram\" border=\"0\" src=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEgtp6DnJtd24MaeAovPq-AGneek7JbApKIHC_pTTnhJGxk5PstTC1r7pvNS122CIEqMZA53YQ6p-diBBQXW4BmmXQNIxCRRtmF5U_SSSZo03Dk5OMmovkJ2YAClY3fD0dW0taiz1PZeFD4\/s1600\/7805-Voltage-Regulator-Pinout.jpg\" title=\"7805 pinout \" \/\u003E\u003Cspan id=\"goog_694159287\"\u003E\u003C\/span\u003E\u003Cspan id=\"goog_694159288\"\u003E\u003C\/span\u003E\u003C\/a\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003Ctr\u003E\u003Ctd class=\"tr-caption\" style=\"text-align: center;\"\u003E\u003Ci\u003E\u003Ca href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEgtp6DnJtd24MaeAovPq-AGneek7JbApKIHC_pTTnhJGxk5PstTC1r7pvNS122CIEqMZA53YQ6p-diBBQXW4BmmXQNIxCRRtmF5U_SSSZo03Dk5OMmovkJ2YAClY3fD0dW0taiz1PZeFD4\/s1600\/7805-Voltage-Regulator-Pinout.jpg\" rel=\"nofollow\" target=\"_blank\"\u003EFig: Pinout of 7805\u003C\/a\u003E\u003C\/i\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003C\/tbody\u003E\u003C\/table\u003E\n\u003Cdiv style=\"text-align: left;\"\u003E\n\u003Cbr \/\u003E\u003C\/div\u003E\n\u003Cdiv style=\"text-align: justify;\"\u003E\nIts output voltage is +5V DC that we need. You can supply any voltage in input; the output voltage will be always regulated +5V. But my recommendation is, don’t supply more than 18V or less than 8V in input. There used two capacitors in this voltage regulator circuit, they aren’t mandatory to use. But it will be best if you use them. They helped to produce a smooth regulated voltage at output. Use electrolyte capacitor instead of ceramic capacitor. \u003C\/div\u003E\n\u003Cdiv style=\"text-align: justify;\"\u003E\n\u003Cbr \/\u003E\nOne limitation of \u003Cb\u003E7805\u003C\/b\u003E I have found that is its output current \u003Cb\u003E1A\u003C\/b\u003E maximum. Otherwise it is a good \u003Cb\u003Evoltage regulator\u003C\/b\u003E if you are happy with 1A. But if\u0026nbsp;\u0026nbsp; you need \u003Cb\u003Eover 400mA\u003C\/b\u003E current in output then you should use a \u003Ca href=\"http:\/\/www.circuitstune.com\/2012\/11\/heat-sink_20.html\" target=\"_blank\"\u003E\u003Cb\u003EHeat Sink\u003C\/b\u003E\u003C\/a\u003E with IC LM7805. Otherwise it may fall damage for overheating. \u003C\/div\u003E\n\u003Cdiv style=\"text-align: left;\"\u003E\n\u003C\/div\u003E\n\u003C\/div\u003E\n"},"link":[{"rel":"replies","type":"application/atom+xml","href":"https:\/\/www.circuitstune.com\/feeds\/7580783217014884510\/comments\/default","title":"Post Comments"},{"rel":"replies","type":"text/html","href":"https:\/\/www.circuitstune.com\/2012\/09\/7805-voltage-regulator-circuit-7805-pinout.html#comment-form","title":"0 Comments"},{"rel":"edit","type":"application/atom+xml","href":"https:\/\/www.blogger.com\/feeds\/4092621447904023766\/posts\/default\/7580783217014884510"},{"rel":"self","type":"application/atom+xml","href":"https:\/\/www.blogger.com\/feeds\/4092621447904023766\/posts\/default\/7580783217014884510"},{"rel":"alternate","type":"text/html","href":"https:\/\/www.circuitstune.com\/2012\/09\/7805-voltage-regulator-circuit-7805-pinout.html","title":"7805 Voltage Regulator Circuit"}],"author":[{"name":{"$t":"Unknown"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"media$thumbnail":{"xmlns$media":"http://search.yahoo.com/mrss/","url":"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEiEWtFvSM_HtrzDhcXj9SuLmLqyN7Wwo3NuEkK-GaCgk0swNiKbZGU32er7NVjrgTptfs5IETFVgnwEYzhxD89oNTUymGQ0GDt8vAFzHBlxzfZ6lCiFKPCXT9SwSWK6QKEskF1LcVVsMnI\/s72-c\/7805-Voltage-Regulator-Circuit-Diagram.jpg","height":"72","width":"72"},"thr$total":{"$t":"0"}},{"id":{"$t":"tag:blogger.com,1999:blog-4092621447904023766.post-3116709909680883089"},"published":{"$t":"2011-12-13T10:32:00.001+06:00"},"updated":{"$t":"2012-12-25T11:08:55.079+06:00"},"category":[{"scheme":"http://www.blogger.com/atom/ns#","term":"Converter"},{"scheme":"http://www.blogger.com/atom/ns#","term":"LM7805"},{"scheme":"http://www.blogger.com/atom/ns#","term":"LM78XX"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Simple Circuit"}],"title":{"type":"text","$t":"12v to 5v dc-dc converter circuit diagram"},"content":{"type":"html","$t":"\u003Cdiv dir=\"ltr\" style=\"text-align: left;\" trbidi=\"on\"\u003E\n\u003Cdiv style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\nPower supply is needed for  all of electronic circuits. Say you have  a 12V power supply  and you want to use it as a 5V power supply. Then use this 12v to 5v dc-dc converter circuit diagram to convert 12 volt to 5 volt. This DC converter circuit provide 5V, 1Amp at output. Here is the small schematic circuit diagram of 12volt to 5volt converter.\u003Cbr \/\u003E\n\u003Cbr \/\u003E\n\u003Ch3\u003E\n\u003Cb\u003ECircuit Diagram of 12VDC to 5VDC converter:\u003C\/b\u003E\u003C\/h3\u003E\n\u003C\/div\u003E\n\u003Cdiv style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\n\u003Cbr \/\u003E\u003C\/div\u003E\n\u003Ctable align=\"center\" cellpadding=\"0\" cellspacing=\"0\" class=\"tr-caption-container\" style=\"margin-left: auto; margin-right: auto; text-align: center;\"\u003E\u003Ctbody\u003E\n\u003Ctr\u003E\u003Ctd style=\"text-align: center;\"\u003E\u003Ca href=\"http:\/\/www.blogger.com\/goog_1828393637\" imageanchor=\"1\" style=\"margin-left: auto; margin-right: auto;\"\u003E\u003Cimg alt=\"12v to 5v converter\" border=\"0\" height=\"193\" src=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEhFAmh24mPVqE6AF_XibinV8eKj-qFrJ9Xey9-Y6LA5OgpYdApZCtp6Nqtc5s9EKaXtmU4UiVXuqnrp5YvPhknBgzQkxIJ0WtGDMBnHZsrRGdQYM8xaI618hxPt9Bs28CCjiQwNhjarYu8\/s400\/12-to-5-volt-dc-to-dc-converter-circuit-diagram.png\" title=\"\" width=\"400\" \/\u003E\u003C\/a\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003Ctr\u003E\u003Ctd class=\"tr-caption\" style=\"text-align: center;\"\u003E\u003Ca href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEhFAmh24mPVqE6AF_XibinV8eKj-qFrJ9Xey9-Y6LA5OgpYdApZCtp6Nqtc5s9EKaXtmU4UiVXuqnrp5YvPhknBgzQkxIJ0WtGDMBnHZsrRGdQYM8xaI618hxPt9Bs28CCjiQwNhjarYu8\/s1600\/12-to-5-volt-dc-to-dc-converter-circuit-diagram.png\" target=\"_blank\"\u003E\u003Ci\u003EFig: 12 volt to 5 volt dc converter circuit schematic\u003C\/i\u003E\u003C\/a\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003C\/tbody\u003E\u003C\/table\u003E\n\u003Cdiv style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\n\u003Cbr \/\u003E\u003C\/div\u003E\n\u003Cdiv style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\nThis DC-DC converter is based on IC LM7805. The LM 7805 is a 3-terminal fixed output positive voltage regulator IC.  The output current of this circuit is up to 1Amp . Use a heat sink with LM7805 to protect the IC from overheating.\u003C\/div\u003E\n\u003Cdiv style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\n\u003C\/div\u003E\n\u003Ca name='more'\u003E\u003C\/a\u003E\u003C\/div\u003E\n"},"link":[{"rel":"replies","type":"application/atom+xml","href":"https:\/\/www.circuitstune.com\/feeds\/3116709909680883089\/comments\/default","title":"Post Comments"},{"rel":"replies","type":"text/html","href":"https:\/\/www.circuitstune.com\/2011\/12\/12-to-5-volt-dc-dc-converter-circuit.html#comment-form","title":"1 Comments"},{"rel":"edit","type":"application/atom+xml","href":"https:\/\/www.blogger.com\/feeds\/4092621447904023766\/posts\/default\/3116709909680883089"},{"rel":"self","type":"application/atom+xml","href":"https:\/\/www.blogger.com\/feeds\/4092621447904023766\/posts\/default\/3116709909680883089"},{"rel":"alternate","type":"text/html","href":"https:\/\/www.circuitstune.com\/2011\/12\/12-to-5-volt-dc-dc-converter-circuit.html","title":"12v to 5v dc-dc converter circuit diagram"}],"author":[{"name":{"$t":"Unknown"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"media$thumbnail":{"xmlns$media":"http://search.yahoo.com/mrss/","url":"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEhFAmh24mPVqE6AF_XibinV8eKj-qFrJ9Xey9-Y6LA5OgpYdApZCtp6Nqtc5s9EKaXtmU4UiVXuqnrp5YvPhknBgzQkxIJ0WtGDMBnHZsrRGdQYM8xaI618hxPt9Bs28CCjiQwNhjarYu8\/s72-c\/12-to-5-volt-dc-to-dc-converter-circuit-diagram.png","height":"72","width":"72"},"thr$total":{"$t":"1"}},{"id":{"$t":"tag:blogger.com,1999:blog-4092621447904023766.post-4188789830487184845"},"published":{"$t":"2011-11-27T15:59:00.002+06:00"},"updated":{"$t":"2013-01-26T00:54:37.225+06:00"},"category":[{"scheme":"http://www.blogger.com/atom/ns#","term":"+5V"},{"scheme":"http://www.blogger.com/atom/ns#","term":"1N 4007"},{"scheme":"http://www.blogger.com/atom/ns#","term":"AC-DC"},{"scheme":"http://www.blogger.com/atom/ns#","term":"LM7805"},{"scheme":"http://www.blogger.com/atom/ns#","term":"LM78XX"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Power supply"},{"scheme":"http://www.blogger.com/atom/ns#","term":"Simple Circuit"}],"title":{"type":"text","$t":"5V Regulated Power Supply Circuit Diagram"},"content":{"type":"html","$t":"\u003Cdiv dir=\"ltr\" style=\"text-align: left;\" trbidi=\"on\"\u003E\n\u003Cdiv style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\n\u003C\/div\u003E\n\u003Cdiv class=\"MsoNormal\" style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\nThis is a small +5V regulated\u0026nbsp; power supply circuit. In that case here we used 7805 Voltage Regulator IC. 7805 is a +5 Volt regulator IC from 78xx chips family. The circuit has\ninternal current limiting and thermal protection capacity. A 9V 2A steps down\ntransformer is used to covert 230V to 9V from mains. Here used a bridge\nrectifier made by four \u0026nbsp;1N 4007 diode to\n\u003Ca href=\"http:\/\/www.circuitstune.com\/2012\/11\/100-watt-inverter-circuit-12vdc-220vac.html\" target=\"_blank\"\u003Econvert AC-DC\u003C\/a\u003E . 470uF 50v as C1 is used for filtering. This circuit is very easy\nto build. For good performance recommended input\nvoltage 8V-18V. If\u0026nbsp; over\n400mA current is needed at output then use a \u003Ca href=\"http:\/\/LA4440 Amplifier Circuit\" target=\"_blank\"\u003E\u003Cb\u003Eheat sink\u003C\/b\u003E\u003C\/a\u003E with the \u003Ca href=\"http:\/\/www.circuitstune.com\/2012\/09\/7805-voltage-regulator-circuit-7805-pinout.html\" target=\"_blank\"\u003E7805 IC\u003C\/a\u003E.\u0026nbsp;\u003C\/div\u003E\n\u003Cdiv class=\"MsoNormal\" style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\n\u003Cbr \/\u003E\n\u003Ch3\u003E\n\u003Cb\u003ECircuit diagram\u003C\/b\u003E of 5V Regulated Power Supply\u003C\/h3\u003E\n\u003C\/div\u003E\n\u003Ctable align=\"center\" cellpadding=\"0\" cellspacing=\"0\" class=\"tr-caption-container\" style=\"margin-left: auto; margin-right: auto; text-align: center;\"\u003E\u003Ctbody\u003E\n\u003Ctr\u003E\u003Ctd style=\"text-align: center;\"\u003E\u003Ca href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEhs8m4cmY2TvrK1ErEFR8FQqyKdNP8gJ6BGVlSBJWp2opmWKRJwp3f70IRqV8JRfzGOEu_sFXTsmRQuawqIinZ73VNHOa9YKy7sp1mCV9Q6SZ-EPfnKhPXwQ3yqJRpDWAg_3P-bCVxtglM\/s1600\/5V-power-supply-circuit-diagram.png\" imageanchor=\"1\" style=\"margin-left: auto; margin-right: auto;\"\u003E\u003Cimg alt=\"5V power voltage regulator\" border=\"0\" src=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEhs8m4cmY2TvrK1ErEFR8FQqyKdNP8gJ6BGVlSBJWp2opmWKRJwp3f70IRqV8JRfzGOEu_sFXTsmRQuawqIinZ73VNHOa9YKy7sp1mCV9Q6SZ-EPfnKhPXwQ3yqJRpDWAg_3P-bCVxtglM\/s1600\/5V-power-supply-circuit-diagram.png\" title=\"\" \/\u003E\u003C\/a\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003Ctr style=\"font-family: Verdana,sans-serif;\"\u003E\u003Ctd class=\"tr-caption\" style=\"text-align: center;\"\u003E\u003Ci\u003EFig-1: 5V regulated power supply schematic\u003C\/i\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003C\/tbody\u003E\u003C\/table\u003E\n\u003Cdiv class=\"MsoNormal\" style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\n\u003Cbr \/\u003E\u003C\/div\u003E\n\u003Ca name='more'\u003E\u003C\/a\u003E\u003Cbr \/\u003E\n\u003Cdiv class=\"MsoNormal\" style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\n\u003Ch3\u003E\n\u003Cb\u003E\u0026nbsp;Pin Diagram of IC 7805\u003C\/b\u003E\u003C\/h3\u003E\n\u003C\/div\u003E\n\u003Cdiv class=\"MsoNormal\" style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\n\u003Cbr \/\u003E\u003C\/div\u003E\n\u003Ctable align=\"center\" cellpadding=\"0\" cellspacing=\"0\" class=\"tr-caption-container\" style=\"margin-left: auto; margin-right: auto; text-align: center;\"\u003E\u003Ctbody\u003E\n\u003Ctr\u003E\u003Ctd style=\"text-align: center;\"\u003E\u003Cimg alt=\" 7805 Pin Diagram\" border=\"0\" src=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEhbH0XzTbMu_x1ci21VLzHQQVuzqH7Xy4-iroztttQ8qmwjlKxJqHAAdOtQ0JMCBV7wZo6_5IXLG8kH7t-y7gpxaTJ60WlWBH1Sl9vPcHZ2pxeafMQXnvTkOnkzE-WTboAxS0EVgvMlm6k\/s1600\/IC-7805--pin-diagram.png\" title=\"\" \/\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003Ctr style=\"font-family: Verdana,sans-serif;\"\u003E\u003Ctd class=\"tr-caption\" style=\"text-align: center;\"\u003E\u003Ci\u003E\u0026nbsp;Fig2:Pin Diagram\u003C\/i\u003E\u003Cbr \/\u003E\n\u003Ci\u003E of\u0026nbsp; IC 7805\u003C\/i\u003E\u003C\/td\u003E\u003C\/tr\u003E\n\u003C\/tbody\u003E\u003C\/table\u003E\n\u003Cdiv class=\"MsoNormal\" style=\"font-family: \u0026quot;Trebuchet MS\u0026quot;,sans-serif; text-align: justify;\"\u003E\n\u003Cbr \/\u003E\u003C\/div\u003E\n\u003C\/div\u003E\n"},"link":[{"rel":"replies","type":"application/atom+xml","href":"https:\/\/www.circuitstune.com\/feeds\/4188789830487184845\/comments\/default","title":"Post Comments"},{"rel":"replies","type":"text/html","href":"https:\/\/www.circuitstune.com\/2011\/11\/5v-regulated-power-supply-circuit.html#comment-form","title":"1 Comments"},{"rel":"edit","type":"application/atom+xml","href":"https:\/\/www.blogger.com\/feeds\/4092621447904023766\/posts\/default\/4188789830487184845"},{"rel":"self","type":"application/atom+xml","href":"https:\/\/www.blogger.com\/feeds\/4092621447904023766\/posts\/default\/4188789830487184845"},{"rel":"alternate","type":"text/html","href":"https:\/\/www.circuitstune.com\/2011\/11\/5v-regulated-power-supply-circuit.html","title":"5V Regulated Power Supply Circuit Diagram"}],"author":[{"name":{"$t":"Unknown"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"media$thumbnail":{"xmlns$media":"http://search.yahoo.com/mrss/","url":"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEhs8m4cmY2TvrK1ErEFR8FQqyKdNP8gJ6BGVlSBJWp2opmWKRJwp3f70IRqV8JRfzGOEu_sFXTsmRQuawqIinZ73VNHOa9YKy7sp1mCV9Q6SZ-EPfnKhPXwQ3yqJRpDWAg_3P-bCVxtglM\/s72-c\/5V-power-supply-circuit-diagram.png","height":"72","width":"72"},"thr$total":{"$t":"1"}}]}});