Dat Chau resumes & CV records
Resumes
Sr Hardware Engineer At Ndsl
Location:
Raleigh-Durham, North Carolina Area
Industry:
Electrical/Electronic Manufacturing
Dat T Chau, 488301 Bellingham Cir, Raleigh, NC 27615
Dat Chau Phones & Addresses
8301 Bellingham Cir, Raleigh, NC 27615
1518 Windham Ln, Silver Spring, MD 20902
Education
Degree:
High school graduate or higher
Mentions for Dat T Chau
Publications & IP owners
Us Patents
Non-Sequential Monitoring Of Battery Cells In Battery Monitoring Systems, And Related Components, Systems, And Methods
US Patent:
2013029, Nov 7, 2013
Filed:
May 2, 2012
Appl. No.:
13/461862
Inventors:
David Brown - Raleigh NC, US
Christopher James Belcher - Cary NC, US
Duncan Joseph Brown - Raleigh NC, US
Dat Tan Chau - Raleigh NC, US
Christopher James Belcher - Cary NC, US
Duncan Joseph Brown - Raleigh NC, US
Dat Tan Chau - Raleigh NC, US
Assignee:
NDSL, Inc. - Raleigh NC
International Classification:
H02H 3/08
G01R 31/36
G01R 31/36
US Classification:
361 931, 324434
Abstract:
Non-sequential monitoring of battery cells in battery monitoring systems, and related components, systems, and methods are disclosed. In one embodiment, a battery monitoring system control unit is provided. The battery monitoring system control unit is configured to control battery monitoring devices. Each battery monitoring device is configured to be coupled to a subset of battery cells electrically connected in series in a sequential order to form a battery. The battery monitoring system control unit is further configured to instruct the battery monitoring devices to test an ohmic value of each battery cell of the battery cells of the battery in a non-sequential order. In this manner, heat generated in the battery monitoring devices from the testing may be more effectively dissipated, which can also allow for the battery monitoring devices to be employed in higher operating temperature environments.
Methods, Systems, And Devices For Monitoring State-Of-Health Of A Battery System Operating Over An Extended Temperature Range
US Patent:
2019038, Dec 19, 2019
Filed:
May 14, 2019
Appl. No.:
16/411471
Inventors:
- Raleigh NC, US
Sumner Michael Smith - Henderson NC, US
Dat Tan Chau - Raleigh NC, US
Mark Allen Wille - Angier NC, US
Sumner Michael Smith - Henderson NC, US
Dat Tan Chau - Raleigh NC, US
Mark Allen Wille - Angier NC, US
International Classification:
G01R 31/392
G01R 31/374
G01R 31/389
G01R 31/396
G01R 31/3842
G06F 3/048
G01R 31/374
G01R 31/389
G01R 31/396
G01R 31/3842
G06F 3/048
Abstract:
Disclosed herein are methods, systems, and devices for determining a state-of-health (SOH) of battery systems over extended temperatures. According to one embodiment, a computer implemented method includes (1) receiving measured temperature data and measured ohmic value data associated with a battery cell; (2) determining an estimated battery cell electrolyte temperature based on the measured temperature data; (3) determining a normalized ohmic value based on the measured ohmic value data and the estimated battery cell electrolyte temperature, wherein the normalized ohmic value is related to a normalized temperature; and (4) transmitting, to at least one of a graphical user interface (GUI) and a battery log, an indication of an SOH of the battery cell based upon the normalized ohmic value being greater than a normalized maximum ohmic value, wherein the normalized maximum ohmic value is indicative of an abnormal SOH of the battery cell for the normalized temperature.
Reducing Or Avoiding Noise In Measured Signals Of A Tested Battery Cell(S) In A Battery Power System Used To Determine State Of Health (Soh)
US Patent:
2016010, Apr 21, 2016
Filed:
Dec 9, 2014
Appl. No.:
14/564927
Inventors:
Dat Tan Chau - Raleigh NC, US
David Robert Battle - Durham NC, US
David Robert Battle - Durham NC, US
Assignee:
NDSL, INC. - Raleigh NC
International Classification:
G01R 31/36
Abstract:
Reducing or avoiding noise in measured signals of a tested battery cell(s) in a battery power system is disclosed. A battery monitoring device(s) coupled to a tested battery cell(s) applies test current pulses at a predetermined frequency to place an effective alternating current (AC) load on the tested battery cell(s). The resulting AC voltage signal generated across the tested battery cell(s) is sampled at the frequency of the test current to convert the AC voltage signal to a direct current (DC) voltage signal to be measured to determine the state-of-health of the tested battery cell(s). To avoid or reduce noise in the DC voltage signal, a noise spectrum of noise signals at defined frequencies induced on the tested battery cell(s) is determined. The battery monitoring device sets the frequency of the test current pulse at a determined reduced-noise frequency to avoid noise signals being present in the DC voltage signal.
Possible Relatives
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