BATTERY STACK CONFIGURATION IN A MULTI-BATTERY SUPPLY SYSTEM

摘要

A reconfigurable multi-battery pack system for inclusion in a hand held device for more efficiently energizing battery powered operation of both a buck DC-DC converter and a boost DC-DC converter included in the device. Also disclosed is a power management circuit that autonomously:
1. connects the batteries in parallel during battery recharging; and2. connects at least two (2) of the batteries in series when the batteries are not being recharged and are energizing operation of the DC-DC converters.

主权项

1. A method for energizing operation of a device includes at least two (2) rechargeable batteries, the device also including both at least one (1) buck DC-DC converter and at least one (1) boost DC-DC converter with each DC-DC converter respectively having a power input that receives electrical power for energizing DC-DC converter operation, the method comprising the step of connecting the batteries to series with:
a. the series connected batteries being connected to the power input of the boost DC-DC converter for energizing the operation thereof; and b. one of the series connected batteries being connected to the power input of the buck DC-DC converter for energizing the operation thereof,whereby during battery powered operation of the device the boost DC-DC converter operates more efficiently in comparison with operation thereof being energized by the batteries connected in parallel.