Nick Allen-Rowlandson is a corporate field engineer with Maxim Integrated Products Inc., Sunnyvale, Calif. He received a BSc in pure and applied physics from Salford University, Greater Manchester, U.K. Email address: Nick_Rowlandson@maximhq.com Web site: http//www.maxim-ic.com
2 results found for Nick Allen-Rowlandson, displaying items 1 - 2
March 13, 2008[Ideas For Design] Two AA Cells Power Class D Amp To Produce Huge Audio Volume
Class D audio amplifiers like the MAX9704 offer almost 90% efficiency, but they need 10 V to operate. For battery-operated systems, that would require a large number of batteries wired in series. You can avoid bulky battery packs by incorporating a switched-mode boost converter like the MAX1771, which generates 12 V from inputs as low as 2 V and delivers output currents up to 2 A. A battery-operated class D amplifier can then run off a pair of AA cells. ...
July 20, 2006[Ideas For Design] Generate ±30 V Using A Transceiver IC
For applications requiring only a few milliamps of supply current, an RS-232 transceiver IC (MAX202) and a few external components can generate bipolar supply rails up to ±30 V. Such capability is useful ±15-V op-amp circuits that supply (for example) meter drive, LCD bias, and gasdetector bias. In the application for which it was designed, the internal charge pump of this IC generates ±10 V to drive an RS-232 line. ...
