Pre Amps finished

Well the pre amp designs are finished. So far I have a stereo version, a balanced stereo version, and a mono version. All of which are in both dip8 and a smd verison.

More information on these including specs tomorrow!

New Project in the works

I have a new project hitting the drawing baord!

I have begun work on a super efficient led power board for a flashlight. I will have two designs. One for use with a single li-ion cell and one for use with two. The reason that two designs are needed is with only one cell I will need a boost converter while with two cells I only need a buck converter.

Why not just use a buck-boost design? The problem with a buck-boost when compared to a standalone buck or boost is the efficiency. With modern inductor driven DC-DC converters a efficiency greater than 90% can be achieved which is critical in high drain battery powered devices.

Goals for these modules are as follows:

    -High efficiency
    -High reliability
    -Low cost per unit
    -Micro controlled with multiple power settings
    -Possible firmware update methods
    -Built in battery protection enabling the use of non protected li-ion cells for higher capacities 

As always if you have any ideas or suggestions for this project just let me know.

High-End Pre-Amp, Power-Amp, and DAC comming soon!

With in the next few months I will be releasing a series of amplifiers and DAC's that I have designed to convey the best quality that is reasonably attainable (no hand made graphite resistors or ridicules "audiophile" cables...).

The final layout is still coming together but the design is going to be semi modular. As in you buy the various components that you would like and they all connect to build what you desire.

Currently I have 3 items.

A power amplifier:
    -Stereo or Dual Mono with lm3876 or Mono with LM1875
    -Shortest reference resistor path possible
    -Wima and Nichicon caps
    -Small PCB for both minimal space needs and low manufacturing cost

A pre amplifier:
    -Stereo and Mono boards available using DIP8 chips or SOIC8
    -Stereo balanced version for XLR applications.
    -Wima and Nichicon caps
    -Super compact PCB

A DAC:
    -TI PCM1792A DAC
    -TI SRC4392 Sample Rate Converter and Digital Audio Reciever
    -Atmel avr for system setup and controll
    -16x2 or 20x4 LCD for system information
    -Rotary encoder and 2 buttons for control
    -External Clock input


All of this is still on the drawing board so if there is any input or requests the comments section is ready to go.
I am intending to make some of the designs open source as well.