Patent ID: 6541944
Filing Date: 2003-04-01
Classification: H02M,Y02B

Abstract:
A switching power converter comprising:a first transistor switch for transferring energy from a supply to a load by opening and closing the first transistor switch, wherein the first transistor switch transfers energy from the supply to a first reactive element upon closing and the first transistor switch transfers energy from the first reactive element to a second reactive element upon opening; a second transistor switch coupled to the first transistor switch for transferring energy from the supply to the load by opening and closing the second transistor switch, wherein the second transistor switch transfers energy from the supply to a third reactive element upon closing and the second transistor switch transfers energy from the third reactive element to the second reactive element upon opening; and a low power detector coupled to the second transistor switch for disabling switching of the second transistor switch upon detection of a low power condition.