Hi guys.
I've registered on here as I have an electronics problem which has been driving my crazy for the past 2 weeks and I'm sure you lot would be able to tell me where I am going wrong.
Here goes.
So, I have a 12v battery which I trying to reduce the voltage on down to around 9.6v. I have been told all I need to do is buy a 3.9v zener diode and to connect it up in series and in the reverse bios (I've been learning! Lol) anyway, I brought the diode off eBay and connected up but I only seem to be getting a drop of around 1v. I must be doing something wrong but I don't know what.
I tried the diode in the forward bios and only had around .2v drop.
Also, I have read but not really understood some websites saying zener diodes with resisters. Can anyone shed some light on this for me. It's would be much appreciated.
Here's a link to the diode I have brought.
http://www.ebay.co.uk/itm/Zener-Dio...mponents_Supplies_ET&var=&hash=item256f83f60f
I've registered on here as I have an electronics problem which has been driving my crazy for the past 2 weeks and I'm sure you lot would be able to tell me where I am going wrong.
Here goes.
So, I have a 12v battery which I trying to reduce the voltage on down to around 9.6v. I have been told all I need to do is buy a 3.9v zener diode and to connect it up in series and in the reverse bios (I've been learning! Lol) anyway, I brought the diode off eBay and connected up but I only seem to be getting a drop of around 1v. I must be doing something wrong but I don't know what.
I tried the diode in the forward bios and only had around .2v drop.
Also, I have read but not really understood some websites saying zener diodes with resisters. Can anyone shed some light on this for me. It's would be much appreciated.
Here's a link to the diode I have brought.
http://www.ebay.co.uk/itm/Zener-Dio...mponents_Supplies_ET&var=&hash=item256f83f60f