Yen Ling Lee

US Patent:

20200412132, Dec 31, 2020

Filed:

Jun 28, 2019

Appl. No.:

16/456943

Inventors:

- Redmond WA, US
Yen Ying LEE - Kirkland WA, US
Gene R. OBIE - Coupeville WA, US

International Classification:

H02J 7/00

Abstract:

An electronic device adjusts power supplied to a first battery power source by a second battery power source. A battery current sense circuit senses a charge current supplied to the first battery power source. Operation of a tracking circuit depends on the charge current. A charge feedback controller generates a control voltage based on an output voltage at a first battery port of the first battery power source. A voltage converter circuit includes an input port electrically coupled to the second battery power source and an output port electrically coupled to the tracking circuit and the first battery power source. The voltage converter circuit adjusts the charge current supplied by the second battery power source through the voltage converter circuit to the first power source based on the control voltage.

US Patent:

20200412136, Dec 31, 2020

Filed:

Jun 28, 2019

Appl. No.:

16/457035

Inventors:

- Redmond WA, US
Yen Ying LEE - Kirkland WA, US
Gene R. OBIE - Coupeville WA, US

International Classification:

H02J 7/00

Abstract:

An electronic device balances power supplied to a system load by a first battery power source and a second battery power source. A battery current sense circuit is electrically coupled to sense a first current supplied by the first battery power source to the system load. A discharge feedback controller is electrically coupled to the battery current sense circuit and configured to adjust a control voltage based on the sensed first current. A voltage converter circuit includes an input electrically coupled to the second battery power source and an output electrically coupled to the system load. The voltage converter circuit is configured to adjust current supplied by the second battery power source through the voltage converter circuit to the system load based on the control voltage.

US Patent:

20200395765, Dec 17, 2020

Filed:

Jun 12, 2019

Appl. No.:

16/438711

Inventors:

- Redmond WA, US
Jay Allen KUEHNY - Sammamish WA, US
Sachin Ramesh CHANDRA - Woodinville WA, US
Yen Ying LEE - Kirkland WA, US
Gene R. OBIE - Redmond WA, US
Jason Michael BATTLE - Kenmore WA, US

International Classification:

H02J 7/00

Abstract:

An electronic device supplies power to system load(s) from a first battery power source and a second battery power source connected in series across a re-configurable device section boundary. A battery monitor monitors voltage across each individual battery cell within the first and second battery power sources. The battery monitor directs a charge circuit as to how and when to charge the first and second battery power sources using an external power source. The battery monitor also directs the charge circuit as to how and when to use the first and second battery power sources to power the system load(s).

US Patent:

20200064899, Feb 27, 2020

Filed:

Aug 21, 2018

Appl. No.:

16/107241

Inventors:

- Redmond WA, US
Yen Ying LEE - Kirkland WA, US
Sachin R. CHANDRA - Woodinville WA, US
Jay A. KUEHNY - Sammamish WA, US
Jason M. BATTLE - Kenmore WA, US

International Classification:

G06F 1/32
G06F 1/14
G06F 1/26

Abstract:

The described technology provides an apparatus including a battery gas gauge configured to monitor fuel level in a fuel cell of a battery pack, a standby circuit connected to a power output of the battery, the standby circuit configured to receive an enable signal and in response to receiving the enable signal, generate a wake input signal to wake up the battery gas gauge from a shut-down state.