Pulse current parallel charger

Abstract

Faster charging of a battery, including: opening a first switch disposed between an input node of the battery and an input node of a load to decouple the input node of the battery from the input node of the load; and charging the battery using a first charging source coupled to the input node of the battery while the load is being powered through the input node of the load via a second charging source having a charge rate slower than the first charging source.

What is claimed is: 
     
         1 . A system for faster charging of a battery, the system comprising:
 a first charging source coupled to an input node of the battery, the first charging source configured to charge the battery through the input node of the battery;   a second charging source, parallel with the first charging source, coupled to an input node of a load, the second charging source configured to power the load when the battery is being charged by the first charging source; and   a switch having a first node coupled to the input node of the battery and a second node on an opposite side of the switch, the second node coupled to the input node of the load.   
     
     
         2 . The system of  claim 1 , wherein the first charging source comprises one of a pulse current charger, a buck charger, or a buck/boost charger. 
     
     
         3 . The system of  claim 1 , wherein when the battery is charged by the first charging source, the switch is configured to decouple or isolate the battery from the load. 
     
     
         4 . The system of  claim 1 , further comprising a protection circuit module (PCM) configurable to monitor a state of the battery and determine data relevant for managing the battery. 
     
     
         5 . The system of  claim 4 , wherein the PCM is configured to monitor the battery by measuring one or more of voltage, temperature, state of charge, depth of discharge, health, air flow, and current. 
     
     
         6 . The system of  claim 1 , wherein while the first charging source is used to charge the battery, the load is not powered. 
     
     
         7 . The system of  claim 1 , wherein the first charging source and the second charging source are powered from a first power source.