voltage divider - Electronic Circuits Projects Diagrams Free

samtheboxer · 25th July 2007, 08:29 AM

i found this link http://hyperphysics.phy-astr.gsu.edu...ic/voldiv.html and was wondering how this differs from a voltage regulator?

i blew up my NTE960 today and was thinking that if i go this route, i could bring and 11v source down to 5v to use with my PIC.....would that work?

eng1 · 25th July 2007, 08:34 AM

The output voltage changes if the load current changes.

An active regulator keeps its output voltage constant regardless of the output current (ideally).

ericgibbs · 25th July 2007, 09:29 AM

Quote:

Originally Posted by samtheboxer

i found this link http://hyperphysics.phy-astr.gsu.edu...ic/voldiv.html and was wondering how this differs from a voltage regulator?

i blew up my NTE960 today and was thinking that if i go this route, i could bring and 11v source down to 5v to use with my PIC.....would that work?

hi,
The voltage divider using resistors is normally only used to divide a voltage signal level. As eng1 says the voltage to the PIC supply rail will vary according to how much current the PIC requires at any instant.

A 7805 voltage regulator will do the job and its a pin for pin replacement for the NTE960.

Eric

audioguru · 25th July 2007, 02:19 PM

It is nearly impossible to blow up a 7805 regulator.
It limits the current if it gets too high.
It shuts down if it gets too hot.

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25th July 2007, 08:29 AM	(permalink)
samtheboxer	voltage divider i found this link http://hyperphysics.phy-astr.gsu.edu...ic/voldiv.html and was wondering how this differs from a voltage regulator? i blew up my NTE960 today and was thinking that if i go this route, i could bring and 11v source down to 5v to use with my PIC.....would that work?

25th July 2007, 08:34 AM	(permalink)
eng1	The output voltage changes if the load current changes. An active regulator keeps its output voltage constant regardless of the output current (ideally). Last edited by eng1; 25th July 2007 at 08:40 AM.

25th July 2007, 02:19 PM	(permalink)
audioguru	It is nearly impossible to blow up a 7805 regulator. It limits the current if it gets too high. It shuts down if it gets too hot. __________________ Uncle $crooge