Browse Prior Art Database

Distinction between Rechargeable Battery and Dry Battery

IP.com Disclosure Number: IPCOM000113526D
Original Publication Date: 1994-Sep-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Kozasu, Y: AUTHOR [+3]

Abstract

Disclosed is a method for distinguishing between rechargeable battery and dry battery, and for controlling charge operation. This method utilizes a current existing electrical signal as a temperature sensor and makes it possible to distinguish between them electrically and to control the charge operation.

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Distinction between Rechargeable

Battery

and Dry Battery

      Disclosed is a method for distinguishing between rechargeable
battery and dry battery, and for controlling charge operation.  This
method utilizes a current existing electrical signal as a temperature
sensor and makes it possible to distinguish between them electrically
and to control the charge operation.

      The Figures depict block diagrams to implement this method.
Fig. 1 shows the diagram of the rechargeable battery pack.  It
outputs the signal of the logic of the temperature sensor via Pin 3.
Fig. 2 shows the block diagram of the dry battery pack.  It doesn't
output anything via Pin 3.  Fig. 3 shows the diagram of the control
logic in the system unit.  The micro processor can distinguish
between the two by determining whether the input signal from Pin 3 is
a data of temperature sensor or not, and can decide the charge
operation.