Patent ID: 9735574
Date: 2017-08-15
CPC Classifications: H02J,H02M

Claim:
1. A switching regulator circuit, comprising: a first switching regulator stage to receive a first input voltage and produce a first voltage on a first node, wherein the first switching regulator stage operates at a first duty cycle; a second switching regulator stage to receive the first input voltage and produce a second voltage on a second node, wherein the second switching regulator stage operates at a second duty cycle, and wherein during first and second time periods, a first current provided by the first switching regulator stage has a same increasing or decreasing operation as a second current provided by the second switching regulator stage; a capacitor comprising a first terminal coupled to the first node and a second terminal coupled to the second node, wherein the first input voltage is greater than the second voltage on the second node, and wherein the second voltage on the second node is greater than the first voltage on the first node; and wherein the first switching regulator stage and the second switching regulator stage are configured to regulate the first voltage on the first node and to regulate the second voltage on the second node in response to a first feedback input coupled to the first node and a second feedback input coupled to the second node, and wherein the first and second currents provide a voltage step at the first voltage within the first and second time periods.