Patent ID: 9590497
Date: 2017-03-07
CPC Classifications: H02J,H02M

Claim:
1. A system for providing electrical power to a load comprising: a boost converter with an input and an output; a storage device operatively connected between the output of the boost converter and a ground node, wherein the energy storage device is a super capacitor; a first switch operatively connected between a first input node and the output of the boost converter, the switch having a first state connecting the energy storage device to the output of the boost converter and a second state connecting the energy storage device to supply input voltage to the input of the boost converter; a charge decision controller operatively connected to the first input node to detect voltage of the energy storage device, wherein the charge decision controller is operatively connected to detect voltage at a second input node selectively connected to the input of the boost converter; a second switch operatively connected between the second input node and the input of the boost converter, the second switch having a first state connecting the boost converter to the second input node to receive power from a power source, and a second state disconnecting the boost converter from the second input node, wherein the charge decision controller is operatively connected to command the first and second switches into their respective second states upon detection of voltage below a first predetermined limit at the input node and voltage of the capacitor below a second predetermined limit.