tag:blogger.com,1999:blog-8622007552114030374.post4753776524855004724..comments2024-01-03T20:44:11.502-08:00Comments on simple electronics: 220V led lamp (AC powered LED)Unknownnoreply@blogger.comBlogger11125tag:blogger.com,1999:blog-8622007552114030374.post-52691640201589051092014-08-22T20:17:55.082-07:002014-08-22T20:17:55.082-07:00the LED "Light Emitting DIODE" is a rect...the LED "Light Emitting DIODE" is a rectifier<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-56928854592114936182011-10-02T13:56:23.335-07:002011-10-02T13:56:23.335-07:00Yeah you are right, rectifier is not necessary.Yeah you are right, rectifier is not necessary.DH-gmhttps://www.blogger.com/profile/16906779443966743177noreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-62580343785189071422011-10-02T09:34:15.169-07:002011-10-02T09:34:15.169-07:00This circuit don´t need a rectifier? for the input...This circuit don´t need a rectifier? for the input voltaje, for aplying a better continous voltaje in the LEDs?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-47420701453354467872011-08-04T17:08:29.480-07:002011-08-04T17:08:29.480-07:00Good day!
220nF if ac line is 220V @ 60Hz
270nF if...Good day!<br />220nF if ac line is 220V @ 60Hz<br />270nF if ac line is 220V @ 50Hz<br />470nF if ac line is 110V @ 60Hz<br />578nF if ac line is 110V @ 60Hz<br /><br />meaning if <b>your area has a main supply of 220V @ 60Hz frequency</b>, you will use <b>220nF</b> for capacitor C1 and replace the value of<br />the capacitor depending on your supply.DH-gmhttps://www.blogger.com/profile/16906779443966743177noreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-66585173724477584412011-08-04T17:07:29.429-07:002011-08-04T17:07:29.429-07:00Forget my previous comment , sorry my mistake.Forget my previous comment , sorry my mistake.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-19270832140365942982011-08-04T16:56:15.680-07:002011-08-04T16:56:15.680-07:00You have mentioned lots of capacitors where are yo...You have mentioned lots of capacitors where are you going to use it the circuit is showing only one capacitor which is c1.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-71296906066060551062011-07-17T21:16:15.912-07:002011-07-17T21:16:15.912-07:00It is working. 20 white LED and its usual forward...It is working. 20 white LED and its usual forward voltage is around 3V.You can put a 10k resistor in parallel to the capacitor to limit the inrush currentDH-gmhttps://www.blogger.com/profile/16906779443966743177noreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-25527641584642331142011-07-17T08:46:18.602-07:002011-07-17T08:46:18.602-07:00How many LEDs are suggested? With small number, th...How many LEDs are suggested? With small number, the transient current during switching ON the circuit may be too high to damage the LEDs. A proper value of resistance in series with the capacitor could be used to limit such transients.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-39358831529893847372011-07-17T06:53:36.320-07:002011-07-17T06:53:36.320-07:00what is the voltage rating for the led'swhat is the voltage rating for the led'sAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-45341624701602489362011-07-17T06:28:29.972-07:002011-07-17T06:28:29.972-07:00is this circuit really working its amazing a good ...is this circuit really working its amazing a good energy conservation projectAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-90111636502547440562011-01-16T05:40:37.177-08:002011-01-16T05:40:37.177-08:00en este circuito de 220v led lamp(ac powered led) ...en este circuito de 220v led lamp(ac powered led) les falto poner el puente rectificador de 4 diodos o asi es este circuito mirenlo antes de hacerlo porque en la entrada veo una polaridad la respuesta mandemela a mi correo josesanchez_24_07@hotmail.comAnonymousnoreply@blogger.com