I'm busy building a power supply that converts 220v to 12v dc. i use: 200va power supply that converts the 220v to 12v ac unregelated now i want to convert it to 12v dc so i use a 36 amp rectifyer for the dc part. Now can anyone plz tell me how i can and what parts to use to make it a 12v dc regulated power supply? and can i use this system for charging a 12v car battery when it is finished? thnx for the help guys