Supertex, Inc. (SUPX) reported net sales of $16.7 million, up 5% sequentially but down 5% year over year. The sequential growth came from all target markets.  Headquartered in California, Supertex designs and sells high-voltage analog and mixed signal Integrated Circuits (IC) for the Medical Electronics, Imaging, Telecom, LED Lighting, and industrial/other markets.  Total LED driver sales, including ...