Patent ID: 6362608
Filing Date: 2002-03-26
Classification: H02M

Abstract:
A method of operating a buck converter comprising:a) providing a plurality of buck converter stages operating into a common buck converter output; b) if after the prior operation of a buck converter stage, the buck converter output is not less than a regulation voltage, initiating the operation of the buck converter stages one at a time in a sequence, the operation of each buck converter stage being initiated when the buck converter output becomes less than a regulation voltage; c) if after the prior operation of a buck converter stage, the buck converter output is less than a regulation voltage, initiating the operation of multiple buck converter stages at a time; d) if after the prior operation of multiple buck converter stages at a time, the buck converter output is less than a regulation voltage, again initiating the operation of multiple buck converter stages at a time; e) if after the prior operation of multiple buck converter stages at a time, the buck converter output is not less than a regulation voltage, initiating the operation of the buck converter stages one at a time in a sequence, the operation of each buck converter stage being initiated when the buck converter output becomes less than a regulation voltage.