THE ORRONOCO AUDIO DIY

The class D amplifier are now very popular due to it's power efficiency, good sounding, and ultra cheap kit available. Mostly they are comes in the small modules which most of the user will consider them to use for multimedia or PC sound amplifier. They are built for it, but I will consider to put them on the higher class. They will put on my audio system on my living room with proper listening placement, good audio source. Then I will comparing them one to another.

My previous project using Tripath amplifier  here  is give a big smile on my face. The single rail voltage amplifier could produce seductive and sweet vocal which mostly we only can find on more expensive audio system, let's say a tube amplifier. The power output from this amplifier is quite small for a solid state, but this amplifier could drive my stereo speaker with ease. So, I try to figuring out if  this amplifier could become my car audio amplifier.

The most popular choice for regulated power supply are using 78xx series which simple yet considerably good. If want more advance to against the ripple, using LM317 is the best choice. The LM317 is also voltage regulator with the voltage output that can be adjust based on the need. They are both good regulator but very limited to the output ampere. Less than 1 ampere I believe. This low ampere is not a problem with small device such as pre-amplifier but you cannot going any further such as power amplifier. Of course you can add to the circuit a high ampere transistor to rise the current but it make the circuit more complicated. That is why this LT1083 will took the place for the high ampere regulated power supply IC.