any pinoy here pm me

[jaykool_56]

:o :( >:( :( :o 8) ??? ::) :P :-[ :-X :-\ :-* :'( :'( :-X



mga tol muzta!

how can i get a negative supply frm a positive and ground power supply?
this is what i want i need to produce a (-) prom the (+)and (0) supply.

if you have pls share with me thanks!!

[MrHeckles]

I have found the ICL7660 voltage converter chip to be very helpful.

Here is a link to a datasheet for it.

http://www.alldatasheet.com/datasheet-pdf/pdf/67436/INTERSIL/ICL7660.html

[audioguru]

A 555 oscillator that is driving a capacitive-coupled rectifier will give much more negative output current than an ICL7660, but has a two-diodes voltage drop.

A car stereo power amp that has an oscillator driving it and it is driving a capacitive-coupled rectifier will give much more negative output current than either of the above. 

[Muhammad Abu Bakar]

If u r powering the sircuit from AC supply, this circuit might help u for dual supply operation.

[Guest Kasamiko]

:o :( >:( :( :o 8) ??? ::) :P :-[ :-X :-\ :-* :'( :'( :-X



mga tol muzta!

how can i get a negative supply frm a positive and ground power supply?
this is what i want i need to produce a (-) prom the (+)and (0) supply.

if you have pls share with me thanks!!

Please used English language only..I have some ICL7660 on stock here..
Where you in the Philippines? PM me for some info..

Regards..

rhonn  ;) ;)