Tinh R Hoang

US Patent:

20120326502, Dec 27, 2012

Filed:

Jun 26, 2012

Appl. No.:

13/533052

Inventors:

Hap NGUYEN - Fountain Valley CA, US
John J. FISCHER - Marietta GA, US
Tinh H. HOANG - Westminster CA, US

International Classification:

H02J 7/34

US Classification:

307 21

Abstract:

An apparatus for eliminating electricity leakage from an electronic device connected to a power supply, while the electronic device is in switched-off or stand-by state is disclosed. The apparatus comprises of a charging module connected to at least one rechargeable battery for selectively providing electricity from the power supply to the rechargeable battery while the electronic device is in switched-on state. An isolation module is provided for isolating the power supply from the electronic device while the electronic device is in switched-off or standby state and restoring the power supply when the electronic device is in switched-on state. A back up module connected to the rechargeable battery, providing power to at least one active component from the rechargeable battery such that at least one active component remains operational even when the electronic device is in switched-off or standby state.

US Patent:

20140265566, Sep 18, 2014

Filed:

Mar 16, 2013

Appl. No.:

13/844934

Inventors:

Hap Nguyen - Fountain Valley CA, US
John Fischer - Marietta GA, US
Tinh H. Hoang - Westminster CA, US

International Classification:

H02J 7/00

US Classification:

307 23

Abstract:

An apparatus for eliminating electricity leakage from an electronic device connected to a power supply, while the electronic device is in switched-off state or stand-by state is disclosed. The electricity leakage is the electricity consumed by at least one active component of the electronic device that remains active in the switched-off state or standby state. The apparatus comprises of a charging module connected to at least one rechargeable battery for selectively providing electricity from the power supply to the rechargeable battery while the electronic device is in switched-on state using a MCU chip and associated circuit. An isolation module is provided for isolating the power supply from the electronic device while the electronic device is in switched-off state or standby state and restoring the power supply when the electronic device is in switched-on state. A back up module connected to the rechargeable battery, providing power to at least one active component from the rechargeable battery such that at least one active component remains operational even when the electronic device is in switched-off state or standby state.