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Automotive

μPower Buck Regulator Safely Rides Through Automotive Load Dumps

April 01, 2010 | Juan G. Aranda, Linear Technology
μPower Buck Regulator Safely Rides Through Automotive Load Dumps
When a buck regulator is used in applications where output short-circuit and overload conditions occur, the duty cycle required to keep the inductor current under control can be lower than the regulator's minimum duty cycle when operating at full speed. Therefore, to effectively protect a traditional regulator under such conditions, its switching frequency must be reduced to a speed that can safely handle the maximum expected input voltage







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