Patent ID: 8294388

Claim:
An apparatus comprising: a current regulator; a controller coupled to the current regulator and configured to: a) receive a pulse-width modulation (PWM) control signal associated with a load, the PWM control signal to cause a load change from a perspective of a switching-mode power supply; b) cause the power supply to adjust a current through an inductor of the power supply in response to the control signal; and c) delay delivery of the control signal to the current regulator to delay a time of the load change in order to allow the current through the inductor to increase during the delay of the control signal to a substantial steady state that is in proportion to the load current which is based on an inverse of a duty cycle associated with the PWM control signal, wherein i) the PWM control signal comprises a request to turn on one or more light emitting diodes (LEDs); ii) the load comprises the current regulator; and wherein the controller is configured to: a) receive the request to turn on the one or more LEDs by receiving a pulse in the PWM control signal; b) delay the pulse in the PWM control signal and provide the delayed pulse to the current generator.