Yuan Jennifer W Dao

US Patent:

20120249154, Oct 4, 2012

Filed:

Mar 31, 2011

Appl. No.:

13/077145

Inventors:

Yuan Dao - Phoenix AZ, US
William Schlanger - Flagstaff AZ, US

Assignee:

Elite Power Solutions, LLC - Phoenix AZ

International Classification:

G01R 31/14

US Classification:

324509

Abstract:

The present application describes, among other things, a ground fault detection system. The system includes an optocoupler, a current sink, and a first voltage source connected in series. The first voltage source can connect to a negative terminal of a battery unit. Upon connection between a positive terminal of the battery unit and a first node at a ground zero reference level, current can flow through the optocoupler and the current sink to cause the optocoupler to output a ground fault detection signal.

US Patent:

20120249334, Oct 4, 2012

Filed:

Mar 31, 2011

Appl. No.:

13/077136

Inventors:

Yuan Dao - Phoenix AZ, US
William Schlanger - Flagstaff AZ, US

Assignee:

Elite Power Solutions, LLC - Phoenix AZ

International Classification:

G08B 21/00
G01R 31/36

US Classification:

3406361, 702 63

Abstract:

The present application describes, among other things, a battery management system. The battery management system includes a computing device and first and second battery unit monitoring modules. The computing device includes an output data request port and an input data port. Each battery unit monitoring module is connected in parallel to the input data port of the computing device. In response to a data request from the output data request port of the computing device, the first battery unit monitoring module transmits data of the first battery unit to the input data port of the computing device, and transmits a data request to the second battery unit monitoring module. In response to the data request from the first battery unit monitoring module, the second battery unit monitoring module transmits data of the second battery unit to the input data port of the computing device.

US Patent:

20130241488, Sep 19, 2013

Filed:

Mar 14, 2012

Appl. No.:

13/420169

Inventors:

Yuan Dao - Phoenix AZ, US

Assignee:

Elite Power Solutions, LLC - Phoenix AZ

International Classification:

H02J 7/02
H02J 7/00

US Classification:

320111, 320107

Abstract:

In one aspect, the present disclosure describes an apparatus that may include a battery unit including one or more lithium-ion battery cells, and a charging unit configured with a first automatic shut-off, where the automatic shut-off is responsive to detection of an upper threshold voltage level of the battery unit. The apparatus may include an inverter configured with a second automatic shut-off, where the second automatic shut-off is responsive to detection of a lower threshold voltage level of the battery unit, and an input connection functionally connected to the charging unit. The apparatus may be configured to isolate the battery unit from the inverter responsive to detecting both (a) the input connection is disconnected from an input voltage source, and (b) the inverter is shut off.

US Patent:

20110074355, Mar 31, 2011

Filed:

Nov 4, 2010

Appl. No.:

12/939889

Inventors:

Yuan Dao - Phoenix AZ, US
William Schlanger - Flagstaff AZ, US

Assignee:

Elite Power Solutions, LLC - Phoenix AZ

International Classification:

H02J 7/04

US Classification:

320118, 320136

Abstract:

A battery unit balancing system comprises a discharging circuit and means for connecting the discharging circuit to a battery unit. The discharging circuit is configured such that it is automatically activated, when a voltage of the battery unit exceeds a predetermined threshold, to draw a constant discharging current from the battery unit until the voltage of the battery unit falls below the predetermined threshold.