System with massive choke in parallel with a/c line for load conditioning

• US 6,493,244 B1
• Filed: 05/18/2001
• Issued: 12/10/2002
• Est. Priority Date: 11/20/1998
• Status: Expired due to Fees

• Current Assignee: Richard Gray's Power Company
• Original Assignee: Richard Gray's Power Company
• Inventors: Gray, Richard
• Primary Examiner(s): Han, Jessica
• Application Number:
  US09/856,289
• Time in Patent Office: 571 Days
• Field of Search: 363/39, 363/50, 363/142, 363/146, 361/118, 361/159
• US Class Current: 363/39
• CPC Class Codes: H02J 3/01 Arrangements for reducing harmonics or ripples
• CPC Class Codes: H02M 1/12 Arrangements for reducing harmonics from ac input or output
• CPC Class Codes: H02M 1/126 using passive filters
• CPC Class Codes: Y02E 40/40 Arrangements for reducing harmonics

Abstract

A massive choke coil [e.g. exceeding about three henries, with at least a thousand turns and a relatively low internal resistance of about eleven ohms] placed in parallel with the A/C line, that is, preferably across the A/C line'"'"'s “hot” and “common” lines, quenching the reflected signal (or back emf) that is developed when any power amplifier or other load places its demands upon the incoming A/C power line. Due to its electromagnetic characteristics, the choke tends to provide a momentary high current source of energy when needed by, e.g., a power amplifier (or other appropriate load) when transient demand is called for. The parallel choke approach tends to have a reversing effect on this signal, at least substantially reducing its presence on the A/C line, providing a greatly enhanced A/C power line signal quality, without which the otherwise untreated signals are able to modulate the A/C line.

Claims

1. In an alternating current (A/C), electrical powered system, including an incoming A/C power source line having at least three conductors, a “

ground”

line conductor, a “

neutral”

line conductor and a “

hot”

line conductor, powering at least one electrical device load, the improvement comprising;

a massive electrical choke coil placed in parallel with the A/C source line, across the A/C power source line'"'"'s “

hot” and

“

neutral”

line conductors between the electrical device load and the A/C power source line, quenching the reflected back emf signal that develops when the electrical device load places its demands upon the incoming A/C power source line.

2. The improvement of claim 1, wherein:

the load is located in a building having internal, A/C electrical wiring; and

wherein there is further included;

a utility power transformer, with the A/C power source line being connected to the power transformer and being driven by the power transformer to produce the A/C on the power source line; and

wherein;

there is a significant distance of the order of at least about fifty (50′

) feet between the power transformer and the electrical device load;

said choke coil substantially reducing, if not eliminating, the resistive effects of the wiring between the electrical device load and the power transformer.

3. The improvement of claim 1, wherein:

said choke coil is contained in a separate housing, with a wired A/C plug extending out of one side connected to the A/C power line source through a wall socket, and with an A/C socket being located on an exterior surface of said housing, the electrical device load being plugged into said A/C socket.

4. The improvement of claim 1, wherein:

the device load includes a housing, said choke coil being contained in said housing.

5. The improvement of claim 1, wherein:

said choke coil has an inductance greater than about three (3) henries.

6. The improvement of claim 1, wherein:

said choke coil has a core of magnetic material in the form of an “

EI”

core.

7. The improvement of claim 1, wherein:

said choke coil has a core of magnetic material in the form of a torroidal-type core.

8. The improvement of claim 1, wherein:

said choke coil has a low internal resistance of less than about one hundred (100 Ω

) ohms.

9. The improvement of claim 8, wherein:

said choke coil has an internal resistance of about eleven (11 Ω

) ohms.

10. The improvement of claim 1, wherein:

said choke coil has at least a thousand turns of wire.

11. A method of improving the quality of A/C power input to an electrical device load being powered from an A/C power source line having at least three conductors, a “

ground”

line conductor, a “

neutral”

line conductor and a “

hot”

line conductor, comprising the following step;

placing a massive electrical choke coil in parallel with the A/C power source line, across the A/C power source line'"'"'s “

hot” and

“

neutral”

line conductors between the electrical device load and the A/C power source line, quenching the reflected back “

emf”

that develops when the electrical device load places its demands upon the incoming A/C power source line.

12. The method of claim 11, wherein there is included the step of:

using a choke coil having a core of magnetic material.

13. The method of claim 11, wherein:

the electrical device load is located in a building having internal, A/C electrical wiring, there is further included a utility power transformer, with the A/C power source line being connected to the power transformer and being driven by the power transformer to produce the A/C on the power source line, there being a significant distance of the order of at least about fifty (50′

) feet between the power transformer and the electrical device load;

wherein there is further included the step of;

using said choke coil to substantially reduce, if not eliminate the resistive effects of the wiring between the electrical device load and the power transformer.

14. The method of claim 11, wherein there is included the step of:

using a choke coil having an inductance greater than about three (3) henries.

15. The method of claim 11, wherein there is included the step of:

using a choke coil having an internal resistance of less than about one hundred (100 Ω

) ohms.

16. The method of claim 15, wherein there is included the step of:

using a choke coil having an internal resistance of about eleven (11 Ω

) ohms.

17. The method of claim 11, wherein there is included the step of:

using a choke coil having over a thousand turns of wire.

18. In an alternating current (A/C), electrical powered system, including an incoming A/C power source line having at least three conductors, a “

ground”

line conductor, a “

neutral”

line conductor and a “

hot”

line conductor, powering at least one electrical device load, the improvement comprising;

a massive, electrical inductive coil with a magnetic material core placed in parallel with the A/C source line, across the A/C power source line'"'"'s “

hot” and

“

neutral”

line conductors between the electrical device load and the A/C power source line, quenching the reflected back emf signal that develops when the electrical device load places its demands upon the incoming A/C power source line.

19. The improvement of claim 18, wherein:

the electromagnetic characteristics of said massive inductive coil tend to provide a momentary high current source of energy when needed by the device load when transient demand signal is called for.

20. The improvement of claim 19, wherein:

the electromagnetic characteristics of said massive inductive coil also tend to have a reversing effect on the signal, at least substantially reducing the presence of the signal on the A/C line, providing a greatly enhanced A/C power line signal quality, without which the otherwise untreated signals would be able to modulate the A/C line.

21. The improvement of claim 18, wherein:

said inductive coil has two terminal coil ends; and

wherein;

said terminal ends of said inductive coil are directly in electrical contact with the “

neutral”

line conductor and the “

hot”

line conductor.

22. The improvement of claim 18, wherein:

said massive inductive coil has two terminal coil ends; and

wherein;

there is an absence of any capacitive element in series with said massive inductive coil between said terminal ends and the “

neutral”

line conductor and the “

hot”

line conductor.

23. The improvement of claim 18, wherein:

said massive inductive coil has at least a thousand turns of wire.

24. The improvement of claim 18, wherein:

said massive inductive coil has an inductance greater than about one (1) henry.

25. The improvement of claim 24, wherein:

said massive inductive coil has an inductance greater than about three (3) henries.

26. The improvement of claim 18, wherein said magnetic material core comprises a ferrous core.