Brian T Pozsgay

US Patent:

6479968, Nov 12, 2002

Filed:

Sep 27, 2000

Appl. No.:

09/672125

Inventors:

Brian Thomas Pozsgay - Lilburn GA
Martin Hague Ramsden - Lawrenceville GA
Taneka Frazier - Duluth GA
Ang Teik Heng - Victoria, AU

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H02J 714

US Classification:

320137, 324430

Abstract:

This invention includes a method for sensing the parasitic impedance in a battery charging system and compensating for these parasitic impedances. In one embodiment, the voltage of the system is measured with no charging current applied. Next, a charging current is applied and a second voltage is measured. The parasitic impedance is then extrapolated and multiplied by a predetermined rapid charging current. The product is added to a predetermined cell termination voltage. The charging means remains in a rapid charge current mode until a voltage equal to the sum of the impedance-current product and the predetermined voltage is reached, wherein the current is reduced to a maintenance charging level.

US Patent:

6765366, Jul 20, 2004

Filed:

Oct 25, 2002

Appl. No.:

10/280366

Inventors:

Kevin Maggert - Lawrenceville GA
Charles Friedli - Lawrenceville GA
Due Q. Huynh - Lawrenceville GA
Brian Pozsgay - Lilburn GA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01M 1046

US Classification:

320114

Abstract:

This invention includes a charger that may be mounted either in a horizontal configuration, e. g. on a desktop, or in a vertical configuration, e. g. on a wall. The charger has pockets geometrically oriented so as to support batteries in either configuration. Each pocket includes a corresponding display. As changing from a desktop configuration to a wall mount configuration requires the user to rotate the charger by 180 degrees, a switch is provided to rotate the information shown on the display by 180 degrees. The switch is preferably recessed below the surface of the charger so as to prevent nuisance actuation. The resulting orientation of the display is stored in a non-volatile memory to prevent resets when power is removed. By holding the switch down for a predetermined amount of time, a user can send the display into a test mode so as to run diagnostics and verify proper display operation.

US Patent:

6928372, Aug 9, 2005

Filed:

Jul 29, 2003

Appl. No.:

10/628609

Inventors:

Brian T. Pozsgay - Lawrenceville GA, US
William C. Bohne - Lawrenceville GA, US
Daniel J. Jakl - Lawrenceville GA, US
Bradley E. Long - Lawrenceville GA, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G01R031/36

US Classification:

702 63, 320132, 320134, 320137, 320160

Abstract:

A method for determining time to completion is provided for a battery charging system. The system preferably includes a charger having a microprocessor and a battery with a memory. The memory includes information about the battery, including battery identifiers, charging states, charging procedures and charging termination information. The charger reads this battery and then determines the charging states associated with the battery. The charger then determines the present state of charge, and calculates a time to completion for that state. The charger then determines times to completion for the remaining charge states, optionally compensating for self discharge within the battery. A total time to completion is determined by summing the times to completion for the respective charging states.

US Patent:

59329890, Aug 3, 1999

Filed:

May 4, 1998

Appl. No.:

9/072092

Inventors:

Brian T. Pozsgay - Lawrenceville GA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01M 1044

US Classification:

320106

Abstract:

A battery (104) is connected to a host device (106), the host device is an electrical or electronic device, such as a cellular telephone. The battery is rechargeable, and contains a memory (110) connected to a data line (116). The battery is connected to a battery charger (102) while also connected to the host device. The battery charger detects the battery (306), reads the battery information (308) from the battery memory. The data line is common to the battery charger, battery, and host device. The charger indicates its presence to the host device by changing the voltage level on the data line (310) from a normal first level, such as a logic level of one, to a second level, such as a logic level of zero, and holds the data line at the second level. The host detects the presence of the battery charger (312) after the data line has been held at the second level for a sufficient period of time, and then may take the desired actions (314).

US Patent:

62491075, Jun 19, 2001

Filed:

Sep 28, 2000

Appl. No.:

9/670906

Inventors:

Stephen Nicholas Wolfe - Lawrenceville GA
Brian Thomas Pozsgay - Lawrenceville GA
Martin Hague Ramsden - Lilburn GA
Bradley Eugene Long - Lawrenceville GA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01M 1044

US Classification:

320150

Abstract:

A method of charging a battery, and particularly a nickel battery, in a mobile charger, such as a vehicular charger, which is subjected to elevated temperatures. The method includes the steps of a first charging of the battery until a temperature inflection occurs, and then ceasing the charging while the battery temperature stabilizes. Then the battery is charged a second time, and a parameter is monitored for an indication of a full charge, such as temperature inflection or voltage cut-off. Preferably, when the battery reaches an elevated temperature, the charging is ceased until the battery stabilizes, and the charger monitors either temperature inflection, voltage cut-off, or a Coulomb count to determine when the battery has a full charge.