# US 7,940,534 B2 · Resonant transformer systems and methods of use

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 7,940,534 B2
- Document ID: US7940534B2
- Status: Granted
- Kind: B2
- Application number: 12/313,792
- Filed: 2008-11-25
- Published: 2009-12-10
- Granted: 2011-05-10
- Earliest claimed: 2007-11-27
- Assignees: Extremely Ingenious Engineering
- Inventors: Anthony Francis Issa; Jeffrey Messer; John Michael Tobias
- Web page: https://patentgrep.com/patent/US7940534B2

## CPC

- H01Q 7/00: Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01F 27/363: {made of electrically conductive material}
- H01Q 7/06: with core of ferromagnetic material (H01Q7/02 takes precedence)
- H01Q 7/08: Ferrite rod or like elongated core
- H02J 50/12: of the resonant type
- H04B 5/266: {One coil at each side, e.g. with primary and secondary coils}
- H04B 5/48: Transceivers
- H01F 27/006: {with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance}
- H01F 27/36: Electric or magnetic shields or screens (movable for varying inductance H01F21/10)
- H01F 38/14: Inductive couplings
- H02J 50/005: {Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices}
- H02J 50/50: using additional energy repeaters between transmitting devices and receiving devices
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H04B: TRANSMISSION

## Abstract

Resonant transformer systems and methods of use are described. One aspect may include a primary winding, a secondary winding, and at least one output winding. In further aspects, a transformer may be coupled to the secondary winding. In one aspect, the output winding is coupled to rectifying circuitry, which may be coupled to one or more capacitors.

## Claims

### Claim 1

A method of operating a resonant transformer, comprising:
(a) initiating a first timing signal within a driver;
(b) inputting power to the driver;
(c) inducing a first alternating current into a primary winding, wherein the first alternating current is generated by the driver;
(d) electromagnetically coupling the primary winding to a secondary winding;
(e) storing energy, wherein the energy comprises an electric field between the plates of a first capacitor bank;
(f) generating a second alternating current on the secondary winding at a frequency governed by an RLC circuit, wherein the RLC circuit includes the secondary winding and the first capacitor bank;
(g) sensing the frequency of the second alternating current on the secondary winding;
(h) sending a second timing signal to the driver based on the frequency of the second alternating current on the secondary winding, wherein the driver provides the first alternating current into the primary winding based on the second timing signal;
(i) electromagnetically coupling at least one output winding to the secondary winding; and
(j) outputting a third alternating current from the output winding into a rectifying circuitry.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
(k) rectifying the third alternating current into a direct current;
(l) reducing ripples on the direct current; and
(m) transmitting the direct current.

### Claim 3 (depends on 2)

The method of claim 2, wherein the first capacitor bank includes polymeric capacitors.

### Claim 4 (depends on 2)

The method of claim 2, wherein the rectifying the third alternating current into the direct current is done through a rectifying circuit and a second capacitor bank.

### Claim 5 (depends on 1)

The method claim 1, wherein the driver includes a feedback system and insulated gate bipolar transistors in an H-bridge configuration.

### Claim 6

A resonant transformer system, comprising:
a secondary winding wrapped around a core form and having first and second ends coupled to a secondary-capacitor bank, wherein the core form is toroid-shaped with a gap;
a primary winding wrapped around a primary form and having first and second ends coupled to a driver, wherein the primary form surrounds a portion of the core form;
at least one output winding wrapped around an output form and having first and second ends coupled first and second inputs of a rectifying circuitry respectively, wherein a first output of the rectifying circuitry is coupled to one or more capacitors through a first terminal of the one or more capacitors and a second output of the rectifying circuitry is connected to the one or more capacitors through a second terminal of the one or more capacitors, and the output form surrounds a portion of the core form; and
a transformer coupled to the secondary winding.

### Claim 7 (depends on 6)

The system of claim 6, wherein the secondary capacitor bank is coupled to a ground.

### Claim 8 (depends on 6)

The system of claim 6, wherein the core form includes a layer of a high permeability material.

### Claim 9 (depends on 6)

The system of claim 6, wherein the secondary capacitor bank includes polymeric capacitors.

### Claim 10 (depends on 6)

The system of claim 6, wherein the one or more capacitors includes one or more snubber capacitors, low inductance polymeric capacitors, and electrolytic capacitors.

### Claim 11 (depends on 6)

The system of claim 6, wherein the rectifying circuitry includes a diode array.

### Claim 12 (depends on 6)

The system of claim 6, further comprising a gas-tight container surrounding the core form, primary form, and output form.

### Claim 13 (depends on 12)

The system of claim 12, wherein the gas-tight container includes a gas with a high-dielectric atmosphere.

### Claim 14 (depends on 12)

The system of claim 12, wherein the gas-tight container is a vacuum.

### Claim 15 (depends on 6)

The system of claim 6, further comprising a Faraday cage surround the core form, primary form, and output form.

### Claim 16 (depends on 6)

The system of claim 6, wherein the transformer is a feedback transformer.

### Claim 17

A resonant transformer system, comprising:
a secondary winding wrapped around a core form and having first and second ends coupled to a secondary capacitor bank, wherein the core form is cylinder-shaped;
a primary winding wrapped around the inside of the core form and having first and second ends coupled to a driver;
at least one output winding wrapped around an output form and having first and second ends coupled first and second inputs of a rectifying circuitry respectively, wherein a first output of the rectifying circuitry is coupled to one or more capacitors through a first terminal of the one or more capacitors and a second output of the rectifying circuitry is connected to the one or more capacitors through a second terminal of the one or more capacitors, and the output form surrounds a portion of the core form; and
a transformer coupled to the secondary winding.

### Claim 18 (depends on 17)

The system of claim 17, wherein the core form surrounds a high permeability material.

### Claim 19 (depends on 17)

The system of claim 17, further comprising a gas-tight container surrounding the core form, primary form, and output form.

### Claim 20 (depends on 19)

The system of claim 19, wherein the gas-tight container includes a gas with a high-dielectric atmosphere.

### Claim 21 (depends on 17)

The system of claim 17, further comprising a Faraday cage surround the core form, primary form, and output form.

### Claim 22 (depends on 17)

The system of claim 17, wherein the transformer is a feedback transformer.