I have been doing CAD - based electronics design since 1989 and have been working exclusively in Altium Designer since 2000. I have experience with many types of analog design, including microphone preamplifiers, Class D audio amplifier circuits, and both AC - DC and DC - DC switching power supplies up to 300 watts. I have designed high - speed digital circuits, with microprocessors out to a quad - core ARM Cortex A15 with DDR3 RAM. I would love to work with you to refine your product concept and bring it to production with you! I am also available for re-design spins on your boards, no matter what stage of completion they are at.