can you help me please

Thread Starter


Joined Feb 28, 2007
hi evertbody :)
i have a project for designing a simple earth loop impedance tester in electrical site
but the problem i don't have a clue to design the power supply of 9V
that's all
with great thanks if u help me


Joined Feb 24, 2006
You could use a battery. 9V is a common and widely available value.
You could use a wall wart and a voltage regulator.
You could assemble a transformer, a bridge rectifier, and a filter capacitor, followed by a voltage regulator.
What are you up for?


Joined May 16, 2005
According to Google, a "blog circuit" is a collective of popular blog websites all featuring the same pundits. If we can get voltage out of that, we'll be rich beyond the dreams of avarace.

In the meantime, how much current will the 9v supply have to source? Is there a size or mass restriction?


Joined Feb 24, 2006
So if he wants a "blog circuit" why is he asking us? Can't he go there directly and find it for himself? Possibly, this is a manifestation of the lazy sponge syndrome. I'm sure if a blog website deals with power supply circuits then at least one of my suggestions will be there.