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ether you use LM317 or LM7815 etc, the power on
the power on chip is too high ,plse use DC/DC switch,
many dc/dc chip can be used, for example: MC 34063 ,is simple and cheap
if the current is small (34063 can output 500mA),you can add a transistor to improve current
Find chip for VGA
in a project, i want to use a VGA contorler,is has a ISA interface
i find someone use a chip made bye REALTEK
bue i can't find datasheet
Ple tell me,thank you!
oscilloscope input stage
this plan is best one !!!
because it has a good solution in analog front-end!
and i think the usb is a good choice, but is complex
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