http://www.elecfree.com/electronic/dc-12v-to-dc-6v-75v-9v-converter-using-2n3055/ Sun, 21 Mar 2010 10:36:11 +0000 http://wordpress.org/?v=2.6.5 http://www.elecfree.com/electronic/dc-12v-to-dc-6v-75v-9v-converter-using-2n3055/#comment-1396 DC 12V to DC 6V-7.5V-9V Converter using 2N3055 | ???? ??????? ?????????????? Sun, 04 Jan 2009 03:39:07 +0000 http://www.elecfree.com/electronic/?p=3602#comment-1396 [...] This circuit is DC to DC converter model step down voltage. That can modify voltage input 12V DC from be DC 6V , 7.5V and 9V by have the size current about 1A - 2 Amp think. Be easy circuit use Zener diode maintain one’s position voltage. [...] ??????????? DC to DC converter ??? step down voltage ?????????????voltage input ??? 12V DC ???? DC 6V , 7.5V ??? 9V ????????? current ?????? 1A – 2 Amp ????????? ???????????? ??? Zener diode ??????????voltage ????? ?????transistor 2N3055 ???????????????????????????? ???????????????? ??????????????????????????????????... [...] [...] This circuit is DC to DC converter model step down voltage. That can modify voltage input 12V DC from be DC 6V , 7.5V and 9V by have the size current about 1A - 2 Amp think. Be easy circuit use Zener diode maintain one’s position voltage. [...] ??????????? DC to DC converter ??? step down voltage ?????????????voltage input ??? 12V DC ???? DC 6V , 7.5V ??? 9V ????????? current ?????? 1A – 2 Amp ????????? ???????????? ??? Zener diode ??????????voltage ????? ?????transistor 2N3055 ???????????????????????????? ???????????????? ??????????????????????????????????… [...]

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