{"id":7151,"date":"2013-04-21T12:11:16","date_gmt":"2013-04-21T19:11:16","guid":{"rendered":"http:\/\/rustybolt.info\/wordpress\/?p=7151"},"modified":"2013-05-31T13:39:33","modified_gmt":"2013-05-31T20:39:33","slug":"2013-04-21-tbd","status":"publish","type":"post","link":"https:\/\/rustybolt.info\/wordpress\/?p=7151","title":{"rendered":"2013-04-21 Triple Transistor Low Voltage Joule Thief"},"content":{"rendered":"<p><a href=\"http:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2013\/04\/DSC_0050S6.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-7470\" alt=\"DSC_0050S6\" src=\"http:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2013\/04\/DSC_0050S6-300x199.jpg\" width=\"300\" height=\"199\" srcset=\"https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2013\/04\/DSC_0050S6-300x199.jpg 300w, https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2013\/04\/DSC_0050S6.jpg 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>This Joule Thief uses three SS8050 high current transistors, each having a 333 ohm bias resistor (actually three 1k resistors in parallel).\u00a0 At less than a half volt, it gobbles battery current, 49 mA at 0.42 volts.\u00a0 That is a lot more than the typical JT, which drops to a very low current as the voltage drops below 1V.\u00a0 The JT will draw excessive current if the supply voltage rises above 3\/4 volt.\u00a0 This circuit might do well on a single solar cell in broad daylight.\u00a0 It will work on two solar cells in series, which should give nearly a volt in broad daylight.\u00a0 But the solar cells should be matched to the circuit so that the current will not exceed the circuit&#8217;s maximum.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This Joule Thief uses three SS8050 high current transistors, each having a 333 ohm bias resistor (actually three 1k resistors in parallel).\u00a0 At less than a half volt, it gobbles battery current, 49 mA at 0.42 volts.\u00a0 That is a lot more than the typical JT, which drops to a very low current as the<a href=\"https:\/\/rustybolt.info\/wordpress\/?p=7151\"> <\/p>\n<p> (Read More&#8230;)<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[74,4,34],"tags":[],"class_list":["post-7151","post","type-post","status-publish","format-standard","hentry","category-electronic-components","category-joule-thief-smps-dc-dc","category-renewable-energy"],"_links":{"self":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7151"}],"version-history":[{"count":4,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7151\/revisions"}],"predecessor-version":[{"id":7472,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7151\/revisions\/7472"}],"wp:attachment":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}