Aug 28, 2005 #1 C coolchip Full Member level 2 Joined Nov 17, 2003 Messages 125 Helped 1 Reputation 2 Reaction score 2 Trophy points 1,298 Activity points 1,109 3v power supply schematics Where can I find a power supply circuit for my 3 v walkman ? Mains : 230V ~50Hz Thank you!
3v power supply schematics Where can I find a power supply circuit for my 3 v walkman ? Mains : 230V ~50Hz Thank you!
Aug 28, 2005 #2 T techie Advanced Member level 3 Joined Feb 5, 2002 Messages 839 Helped 58 Reputation 116 Reaction score 9 Trophy points 1,298 Location Pakistan Activity points 7,805 You can either use a linear regulator LM317 to make a power supply. Or you can use a switching regulator like LM2576 to make an efficient regulated supply. If you see the datasheets of these ICs, you can see the sample schematic diagrams also.
You can either use a linear regulator LM317 to make a power supply. Or you can use a switching regulator like LM2576 to make an efficient regulated supply. If you see the datasheets of these ICs, you can see the sample schematic diagrams also.
Aug 28, 2005 #3 J Johnson Advanced Member level 2 Joined Oct 4, 2004 Messages 520 Helped 28 Reputation 56 Reaction score 7 Trophy points 1,298 Activity points 3,613 Walkman current consumption is low, so simple and noise-less circuit of LM317 is much better.