US 2017/0288454 A1Published application

Redundant residential power sources

AssigneeGoogle Inc.

InventorsSangsun Kim, Anand Ramesh

Life of this patent

Estimating the term…

Loading patent…

Abstract

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for controlling a battery power source. In one aspect, a system includes a first MOSFET having a first gate, a first source, and a first drain. A second MOSFET having a second gate, a second source, and a second drain. The first source is connected to the second source, and the second drain is coupled to a ground. A control circuit connected to the first gate and the second gate and that provides control signals to the first gate and the second gate that cause the first and second MOSFETS to operate in saturation regions during a first operational state to cause the first power source to discharge and the first MOSFET operates in a linear region during a second operational state to limit a charging current that charges the first power source.

Claims10

Dependent claims

A system, comprising:

a bidirectional switching circuit having a first switch terminal and a second switch terminal, wherein the second switch terminal is coupled to a ground;
a first power source having a first power terminal and a second power terminal, wherein the first power terminal is connected to the first switch terminal and second power terminal is connected to a DC bus;
a second power source having a third power terminal and a fourth power terminal, wherein the third power terminal is connected to the ground and the fourth power terminal is connected to the DC bus;
and
a control circuit connected bidirectional switching circuit and that provides control signals to the bidirectional switching circuit that cause:
the bidirectional switching circuit to operate in a closed state during a first operational state to cause the first power source to discharge;
and
the bidirectional switching circuit operates in a current controlling state during a second operational state to limit a charging current that charges the first power source.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/624,321Filed 15 Jun 2017
Priority: 24 Jul 2015
Published: 5 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H02J 9/061
With automatic change-over , e.g. UPS systems: for DC powered loads
H02J 1/10
Circuit arrangements for DC mains or DC distribution networks: parallel operation of DC sources
H02J 7/663
Including safety or protection arrangements: using battery or load disconnect circuits
H02J 7/865
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: battery or charger load switching, e.g.…

Family

Application14/808,917Continuation · filed 24 Jul 2015
Application15/624,321Continuation
US 2017/0025891 A1Published application
US 9,716,408 B2Related patent
US 2017/0288454 A1This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key