Browse Prior Art Database

BATTERY LOAD DETECTION CIRCUIT

IP.com Disclosure Number: IPCOM000007344D
Original Publication Date: 1995-Mar-01
Included in the Prior Art Database: 2002-Mar-18
Document File: 2 page(s) / 96K

Publishing Venue

Motorola

Related People

Authors:
Frank McCaleb Kuruvilla Valakuzhy Scott Garrett

Abstract

With increased energy requirements in portable radios and other battery powered equipment, users are confronted with the problem that attached bat- teries may actually discharge rather than charge while equipment is on and in the charger. An operational example of this dilemma is a two way radio that is turned on and put into the charger. The charger sup- plies a full C rate charge to the battery and it termi- nates properly at a full capacity. Following termina- tion, the battery is standard charged at a Cl10 to C/25 rate. Unfortunately, the radio standby current plus any receive or transmit activity easily exceeds the charge rate and discharges the battery even as it is in the charger pocket.