Patent ID: 9357598
Filing Date: 2016-05-31
CPC Classification: H02M,H05B,Y02B

Claim Text:
1. A switch-mode power supply implemented with cycle-by-cycle asynchronous control of a duty cycle of a switching-circuitry drive signal to produce a regulated flow of electrical load current from a voltage source, the switch-mode power supply comprising: a signal summing and comparing stage including: a control signal feedback system configured to control shaping of the first and second portions of the comparison signal, the control signal feedback system including control signal switching circuitry and load current detection circuitry, the control signal switching circuitry and the load current detection circuitry responsive to the switching-circuitry drive signal to establish the first and second portions having different comparison signal levels that, by operation of the comparator circuitry, asynchronously cycle the switching-circuitry drive signal so as to modify successive cycles of the duty cycle and thereby regulate the switch-mode power supply to deliver to a connected load the regulated flow of electrical load current.