Patent ID: 9711975
Date: 2017-07-18
CPC Classifications: H02J

Claim:
1. A power bank circuit, comprising: a high voltage port; a low voltage port; an intermediate port; a first power switch, coupled between the high voltage port and the intermediate port; a second power switch, coupled between the intermediate port and a reference ground; an inductor, coupled between the low voltage port and the intermediate port; a first capacitor, coupled between the high voltage port and the reference ground; a second capacitor, coupled between the low voltage port and the reference ground; and a controller, configured to receive: a high voltage sense signal indicative of a voltage at the high voltage port, a high port current sense signal indicative of a current flowing through the high voltage port, a low voltage sense signal indicative of a voltage at the low voltage port, a low port current sense signal indicative of a current flowing through the low voltage port, and wherein the controller is configured to generate a first switch control signal and a second switch control signal to control the operations of the first power switch and the second power switch, respectively.