Need Help For Voltage Drop & Ampire

[Night Eagle]

Hello Forum,
I am Newbe in Electronics . I have a Transformer of 12V 6A (AC). I have Rectify it with Bridge Diode Connection & Used a Electrolytic Capacitor ( 3300mF 25V) . Now I am getting 12V 6A DC .

- Now I want to Drop the Voltage To 1.5 V & Drop the Ampire to 300 mA . What Should I need To use to do so ?

Please Help me . As I am Newbe in Electronics- It will be Best if you guys give me a Schematic Diagram .

-Thanks
-Night Eagle

 

[Resqueline]

Yes, you are indeed a newbee.
Using a rectifier and a capacitor you're not getting 12V 6A DC from 12V 6A AC..
Rather, you get (12Vac*1.414)-2V=15Vdc and 6Aac/1.414=4.24Adc
Now, the easiest way to get the voltage and amperage you need (you drop the voltage but not the amperage -> the consuming device will only draw the current it needs) is to buy a universal car lighter plug adaptor.
If you absolutely want to build it all yourself then google for an LM317 datasheet, which will provide you with the neccessary diagrams and formulas. Remember to heatsink the LM317 for (15V - 1.5V) * 0.3A = 4W of power.