Patent ID: 9692246
Date: 2017-06-27
CPC Classifications: H02J,H02M,Y02B

Claim:
1. A battery power bank circuit comprising: a ground (GND) node; a voltage input (VIN) node; a voltage output (VOUT) node; at least one battery coupled between the GND node and a battery voltage (VBAT) node; a DC-to-DC converter operable in a disabled mode, in a charging mode and in a discharging mode, wherein in the charging mode the DC-to-DC converter receives power via the VIN node and supplies a regulated charging current out to the at least one battery thereby charging the at least one battery, wherein in the discharging mode the DC-to-DC converter receives power from the at least one battery and drives a regulated DC voltage V a current source coupled to supply a constant current onto the VOUT node, wherein if the second disable signal DIS a voltage clamp coupled to the VOUT node; and a Voltage Detector and Disable Signal Generating Circuit (VDDSGC) that detects a condition in which the voltage on the VOUT node exceeds a second voltage V