CONSERVATION OF ELECTRICAL ENERGY AND ELECTRO-MAGNETIC POWER IN BATTERY CHARGER

• US 20080265843A1
• Filed: 07/07/2008
• Published: 10/30/2008
• Est. Priority Date: 06/26/2006
• Status: Active Grant

• Current Assignee: Dat D. Lam
• Original Assignee: Dat D. Lam
• Inventors: Lam, Dat D.
• Granted Patent: US 7,852,041 B2
• Time in Patent Office: Days
• US Class Current: 320/140
• CPC Class Codes: H02K 53/00 Alleged dynamo-electric perpetua mobilia
• CPC Class Codes: H02M 7/4815 Resonant converters H02M7/4811 and H02M7/4826 take precedence
• CPC Class Codes: Y02B 70/10 Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

The present disclosure is an energy-efficient rapid battery charger, using inductive windings rather than transformer to charge a battery. The apparatus operates with an AC power source rectifying a high voltage DC output or AC source transformed to a low DC voltage output. The control driver frequencies vary from several hundred Hz to thousand of Hz. A capacitor, inductor, and power line are arranged in a series parallel combination tank circuit that operates over the on and off time of a complete cycle. During on-time, the inductor is charged with electromagnetic power. During off-time, the electromagnetic power in the inductor discharges into the battery.

Claims

1. A battery charger comprising:

a. an Inductor circuit, wherein the inductor circuit is comprised of at least one winding; and

b. a capacitor circuit that is coupled in series with at least one winding from the inductor circuit, wherein the capacitor circuit and the at least one winding from the inductor circuit are arranged in a series parallel combination tank circuit that operates over the on and off time of a complete cycle, wherein the apparatus is arranged that during on-time, the inductor circuit is charged with electro-magnetic power, and that during off-time, the electro-magnetic power in the inductor circuit discharges into the battery.

2. The apparatus of claim 1, wherein the apparatus is further arranged for operation from one of an AC power source, a standard AC power outlet, and a DC power source.

3. The apparatus of claim 1, further comprising:

a power inverter that is arranged to condition an AC power source to a DC electric power input for the apparatus.

4. The apparatus of claim 1, further comprising a DC drive circuit that is arranged to selectively charge the inductor circuit.

5. The apparatus of claim 1, further comprising an AC drive circuit that is arranged to selectively charge the inductor circuit.

6. The apparatus of claim 4, the inductor circuit comprising a double wire winding inductive coil that includes a first winding and a second winding, wherein the first winding is comprised of a first wire that is wound around a core from a starting position, wherein the second winding is comprised of a second wire that is wound around the core in a common direction with the first wire from the same starting position, wherein the first and second wires are further wound around the core a second time from the either the same starting position or opposite starting position to form a multi-layer arrangement.

7. The apparatus of claim 6, wherein the double wire winding inductive coil is arranged such that the first wire and the second wire each include a negative end and a positive end, wherein the negative end of the first wire is located adjacent to the positive end of the second wire, and wherein the positive end of the first wire is located adjacent to the negative end of the second wire.

8. The apparatus of claim 4, the inductor circuit comprising a four wire winding inductive coil that includes a first winding, a second winding, a third winding, and fourth winding, wherein the first winding is comprised of a first wire that is wound around a core, wherein the second winding is comprised of a second wire that is wound around the core in a common direction with the first wire, wherein the third winding is comprised of a third wire that is wound around the core in a common direction with the fourth wire, wherein the first wire and second wire are wound first, wherein the third wire and fourth wire are wound second and arranged on top of the first and second wire, wherein the first and second wires are further wound around the core a second time from the either the same starting position or opposite starting position to form a multi-layer arrangement, and wherein the third and fourth wires are further wound around the core a second time from the either the same starting position or opposite starting position to form a multi-layer arrangement.

9. The apparatus of claim 8, wherein the four wire winding inductive coil is arranged such that the first wire, second wire, third wire, and fourth wire each include a negative end and a positive end, wherein the negative end of the first wire is located adjacent to the positive end of the second wire, the positive end of the second wire is located adjacent to the negative end of the third wire, and the negative end of the third wire is located adjacent to the positive end of the fourth wire, and wherein the positive end of the first wire is located adjacent to the negative end of the second wire, the negative end of the second wire is located adjacent to the positive end of the third wire, and the positive end of the third wire is located adjacent to the negative end of the fourth wire.

10. The apparatus of claim 4, wherein the DC drive circuit comprises:

a. a first and second transistor circuit, wherein;

the first transistor circuit includes a first collector that is coupled to the positive end of the first winding of the inductor circuit, a first emitter that is arranged for operation from a first terminal of the power source;

the second transistor circuit includes a second collector that is coupled to the negative end of the second winding of the inductor circuit;

a second emitter that is arranged for operation from a second terminal of the power source;

b. a first, second, and third rectifier circuit, wherein;

the first rectifier circuit is coupled between the positive end of the first winding of the inductor circuit and the negative end of the second winding, the second rectifier circuit is coupled between the negative end of the first winding of the inductor circuit and a filter, and the third rectifier circuit is coupled between the positive end of the second winding of the inductor circuit and a capacitor;

c. the filter coupled in series to the first terminal of the capacitor; and

d. the capacitor coupled in parallel to a positive and a negative terminal of the battery.

11. The apparatus of claim 4, wherein the DC drive circuit comprises:

a. a first transistor circuit, wherein, the first transistor circuit includes a first collector that is coupled to the positive end of the first winding of the inductor circuit, a first emitter that is arranged for operation from a first terminal of the power source;

b. a first, second, third, and fourth rectifier circuit, wherein;

the first rectifier circuit is coupled between the positive end of the first winding of the inductor circuit and the negative end of the second winding of the inductor circuit, the second rectifier circuit is coupled between the negative end of the first winding of the inductor circuit and a filter, the third rectifier circuit is coupled between the positive end of the second winding of the inductor circuit and a second capacitor, and the fourth rectifier circuit is coupled between the negative end of the second winding of the inductor circuit and a second terminal of the power source; and

c. a first and the second capacitor, wherein;

the first capacitor is coupled in series to the second capacitor;

the said capacitors are coupled in parallel to the filter that is coupled in series with a positive terminal of the battery and a negative terminal of the battery.

12. The apparatus of claim 7, wherein the DC drive circuit comprises:

a. a first and second transistor circuit, wherein;

the first transistor circuit includes a first collector that is coupled to the negative end of the second wire of the double wire winding, a first emitter that is arranged for operation from a first terminal of the power source;

the second transistor circuit includes a second collector that is coupled to the negative end of the first wire of the double wire winding, a second emitter that is coupled to a second terminal of the power source;

b. a first, second, and third rectifier circuit, wherein;

the first rectifier circuit is coupled between the negative end of the second wire of the double wire winding and the negative end of the first wire of the double wire winding, the second rectifier circuit is coupled between the positive end of the first wire of the double wire winding and a first capacitor, and the third rectifier circuit is coupled between the positive end of the second wire of the double wire winding and a second capacitor; and

c. the first and second capacitor, wherein;

the first capacitor is coupled in series to the second capacitor;

the first capacitor is coupled in series to a negative terminal of the battery; and

the second capacitor is coupled in series to a positive terminal of the battery.

13. The apparatus of claim 7, wherein the DC drive circuit comprises:

a. a first transistor circuit, wherein;

the first transistor circuit includes a first collector that is coupled to the negative end of the second wire of the double wire winding, a first emitter that is arranged for operation from a first terminal of the power source;

b. a first, second, third, and fourth rectifier circuit, wherein;

the first rectifier circuit is coupled between the negative end of the second wire of the double wire winding and the negative end of the first wire of the double wire winding, the second rectifier circuit is coupled between the positive end of the first wire of the double wire winding and a second capacitor, the third rectifier circuit is coupled between the positive end of the second wire of the double wire winding and a first capacitor, and the fourth rectifier circuit is coupled between the negative end of the first wire of the double wire winding and a second terminal of the power source; and

c. the first and second capacitor, wherein;

the first capacitor is coupled in series to the second capacitor;

the said capacitors are coupled in parallel to a positive terminal of the battery and a negative terminal of the battery.

14. The apparatus of claim 9, wherein the DC drive circuit comprises:

a. a first and second transistor circuit, wherein;

the first transistor circuit includes a first collector that is coupled to negative end of the second wire of the four wire winding, a first emitter that is arranged for operation from a first terminal of the power source;

the second transistor circuit includes a second collector that is coupled to the negative end of the first wire of the four wire winding, a second emitter that is coupled to a second terminal of the power source;

b. a first, second, and third rectifier circuit, wherein;

the first rectifier circuit is coupled between the negative end of the second wire of the four wire winding and the negative end of the first wire of the four wire winding, the second rectifier circuit is coupled between the positive end of the third wire of the four wire winding and a first capacitor, and the third rectifier circuit is coupled between the positive end of the fourth wire of the four wire winding and a second capacitor;

c. the positive end of the first wire of the four wire winding is coupled in series to the negative end of the third wire of the four wire winding;

d. the positive end of the second wire of the four wire winding is coupled in series to the negative end of the fourth wire of the four wire winding; and

e. the first and second capacitor, wherein;

the first capacitor is coupled in series with the second capacitor;

the first capacitor is coupled in series with a negative terminal of the battery;

the second capacitor is coupled in series with a positive terminal of the battery.

15. The apparatus of claim 9, wherein the DC drive circuit comprises:

a. a first transistor circuit, wherein;

the first transistor circuit includes a first collector that is coupled to the negative end of the second wire of the double wire winding, a first emitter that is arranged for operation from a first terminal of the power source;

b. a first, second, third, and fourth rectifier circuit, wherein;

the first rectifier circuit is coupled between the negative end of the second wire of the double wire winding and negative end of the first wire of the four wire winding, the second rectifier circuit is coupled between the positive end of the third wire of the four wire winding and a first capacitor, the third rectifier circuit is coupled between the positive end of the fourth wire of the four wire winding and a second capacitor, and the fourth rectifier circuit is coupled between the negative end of the first wire of the four wire winding and a second terminal of the power source;

c. the positive end of the first wire of the four wire winding is coupled in series to the negative end of the third wire of the four wire winding;

d. the positive end of the second wire of the four wire winding is coupled in series to the negative end of the fourth wire of the four wire winding; and

e. the first and second capacitor, wherein;

the first capacitor is coupled in series to the second capacitor;

the first capacitor is coupled in series to a negative terminal of the battery;

the second capacitor is coupled to a positive terminal of the battery.

16. The apparatus in claim 5, the AC drive comprising:

a. a first capacitor, wherein;

a first power line node and a second power line node is coupled to the first capacitor;

the first capacitor is coupled in parallel with the positive end of the first winding of the inductor circuit and the negative end of the second winding of the inductor circuit;

b. the negative end of the first winding of the inductor circuit and the positive end of the second winding of the inductor circuit are coupled in parallel with a full-wave rectifier;

c. the full-wave rectifier is coupled in parallel to a second capacitor that is coupled in series with a filter; and

d. the second capacitor is coupled in parallel to a positive terminal of the battery and a negative terminal of the battery.

17. The apparatus of claim 5, the inductor circuit comprising a double wire winding inductive coil that includes a first winding and a second winding, wherein the first winding is comprised of a first wire that is wound around a core from a starting position, wherein the second winding is comprised of a second wire that is wound around the core in a common direction with the first wire from the same starting position, wherein the first and second wires are further wound around the core a second time from the either the same starting position or opposite starting position to form a multi-layer arrangement.

18. The apparatus of claim 17, wherein the double wire winding inductive coil is arranged such that the first wire and the second wire each include a negative end and a positive end, wherein the negative end of the first wire is located adjacent to the positive end of the second wire, and wherein the positive end of the first wire is located adjacent to the negative end of the second wire.

19. The apparatus in claim 18, the AC drive comprising:

a. a first capacitor, wherein;

a first power line node and a second power line node is coupled to the first capacitor;

the first capacitor is coupled in parallel with the negative end of the first wire of the double wire winding and negative end of the second wire of the double wire winding;

b. the positive end of the first wire of the double wire winding and the positive end of the second wire winding are coupled in parallel with a full-wave rectifier;

c. the full-wave rectifier is coupled in parallel to a second capacitor that is coupled in series with a filter; and

d. the second capacitor is coupled in parallel to a positive terminal of the battery and a negative terminal of the battery.