ELECTRONIC CHARGING DEVICE

• US 20140333263A1
• Filed: 05/10/2013
• Published: 11/13/2014
• Est. Priority Date: 05/10/2013
• Status: Active Grant

• Current Assignee: SAW Capital, LLC
• Original Assignee: SP Technologies LLC
• Inventors: Stewart, Brian, Weaver, Scott
• Granted Patent: US 9,312,707 B2
• Time in Patent Office: Days
• US Class Current: 320/111
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0063 with circuits adapted for supplying loads from the battery
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034

Abstract

An apparatus for providing electrical power, including an electrically non-conductive generally cube-shaped housing, an electrical power supply operationally connected and positioned in the housing, a first plurality of power outlets electrically connected to power supply for connecting three-prong plugs, a second plurality of power outlets for connecting male USB connectors, and a power cord operationally connected to the power.

Claims

1. An apparatus for providing electrical power, the apparatus comprising:

an electrically non-conductive generally cube-shaped housing;

an electrical power supply operationally connected and positioned in the housing;

a first plurality of power outlets electrically connected to power supply for connecting three-prong plugs;

a second plurality of power outlets for connecting male USB connectors;

a power cord operationally connected to the power supply containing a distal end for engaging a wall outlet to conduct electricity to the power supply within circuit board and supplies DC power to second plurality of power outlets.

2. The apparatus of claim 1 wherein power cord has distal end and wherein power supply has connector for receiving distal end in electric communication.

3. The apparatus of claim 1 wherein generally cube-shaped housing consisting of a base and cover is around 4.5 inches by about 2.75 inches.

4. The apparatus of claim 1 wherein the custom power supply functions as a transformer and rectifier for converting AC input to lower voltage DC output.

5. The apparatus of claim 1 wherein the custom conversion board is operationally connected to the custom power supply to receive transformed and rectified power.

6. The device of claim 1 wherein the custom conversion board further comprises at least one USB power circuit;

and wherein the at least one USB power circuit further comprises;

a voltage source;

first node electrically connected to the voltage source;

a second node;

a first resistor electrically connected to the first node and to the second node;

a third node electrically connected to ground;

a second resistor electrically connected to the second node and to the third node;

a fourth node;

a third resistor electrically connected to the third node and to the fourth node;

a first test point electrically connected to fourth node;

a fourth resistor electrically connected to the first node and to the fourth node;

a second test point electrically connected to the second node;

a USB connector having a first pin, a second pin, a third pin, a fourth pin, a fifth pin and a sixth pin;

wherein the first pin is electrically connected to the voltage source;

wherein the second pin is electrically connected to fourth node;

wherein the third pin is electrically connected to the second node;

wherein the fourth, fifth and sixth pins are electrically connected to ground;

wherein the voltage source is a 5V DC output from the custom power supply; and

wherein a USB male connector is engagable with the USB connector to receive power therefrom.

7. The device of claim 6, wherein the first resistor has a resistance of about 75K Ohms;

wherein the second resistor has a resistance of about 50K Ohms;

wherein the third resistor has a resistance of about 50K Ohms; and

wherein the fourth resistor has a resistance of about 38K Ohms.

8. A device for conveniently charging multiple electronic devices atop a table or countertop, comprising in combination:

a generally cube-shaped electrically non-conducting housing;

a power supply, wherein power supply functions as an AC step transformer and as a rectifor to supply a DC voltage;

a circuit board electrically connected to power supply;

at least one USB circuit operationally connected to the circuit board;

at least one USB outlets, wherein each respective at least one USB outlet is electrically connected to a respective at least one USB circuit;

a plurality of three-prong power outlets electrically connected to power supply.

9. The device of claim 8 wherein a plurality of three-prong outlets connected in electric communication with the power supply are positioned on one or more sides of the housing.

10. The device of claim 8 wherein a plurality of USB outlets connected in electric communication with the power supply are positioned on one or more sides of the housing. ii. The device of claim 8 wherein the at least one USB circuit further comprises:

a voltage source;

first node electrically connected to the voltage source;

a second node;

a first resistor electrically connected to the first node and to the second node;

a third node electrically connected to ground;

a second resistor electrically connected to the second node and to the third node;

a fourth node;

a third resistor electrically connected to the third node and to the fourth node;

a first test point electrically connected to fourth node;

a fourth resistor electrically connected to the first node and to the fourth node;

a second test point electrically connected to the second node;

a USB connector defining the USB outlet and having a first pin, a second pin, a third pin, a fourth pin, a fifth pin and a sixth pin;

wherein the first pin is electrically connected to the voltage source;

wherein the second pin is electrically connected to fourth node;

wherein the third pin is electrically connected to the second node;

wherein the fourth, fifth and sixth pins are electrically connected to ground ;

wherein the voltage source is a 5V DC output from the custom power supply; and

wherein a USB male connector is engagable with the USB outlet to receive power therefrom.