Patent ID: 8692613
Filing Date: 2014-04-08
Classification: H03F

Abstract:
1. A circuit having at least three power modes of operation, the circuit comprising: a first power path including a first amplifier, wherein an output of the first amplifier is connected to a first node, and wherein the first power path is a high power path; a first chain capacitor and a first switch connected in a first series, wherein a first end of the first series is connected to the first node, and wherein a second end of the first series is connected to a second node; a second power path including a second amplifier, wherein an output of the second amplifier is connected to the second node, and wherein the second power path is a low power path; a first chain inductor connecting from the second node to a third node; a third power path including a third amplifier, wherein an output of the third amplifier is connected to the third node, and wherein the third power path is a first medium power path; and a second chain inductor connecting from the third node to a fourth node, and wherein the high power path is associated with a high power, the low power path is associated with a low power, and the first medium power path is associated with a first medium power, and wherein the high power is greater than first medium power, and wherein the first medium power is greater than the low power.