ARRAY OF INTERLEAVED 8-SHAPED TRANSFORMERS WITH HIGH ISOLATION BETWEEN ADJACENT ELEMENTS

• US 20160125995A1
• Filed: 10/31/2014
• Published: 05/05/2016
• Est. Priority Date: 10/31/2014
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: ARMANIOUS, Miena, JESSIE, Darryl, MYERS, Thomas Andrew
• Application Number:
  US14/530,068
• Publication Number:
  US 20160125995A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01F 17/0006 Printed inductances printed coils for dynamo-electric machines H02K3/26; printed circuits H05K
• CPC Class Codes: H01F 19/00 Fixed transformers or mutual inductances of the signal type H01F36/00 takes precedence
• CPC Class Codes: H01F 2017/0073 with a special conductive pattern, e.g. flat spiral
• CPC Class Codes: H01F 2019/085 Transformer for galvanic isolation
• CPC Class Codes: H01F 2027/2809 on stacked layers
• CPC Class Codes: H01F 2027/2819 Planar transformers with printed windings, e.g. surrounded by two cores and to be mounted on printed circuit
• CPC Class Codes: H01F 27/2804 Printed windings

Abstract

An apparatus configured to isolate a direct current component voltage of a first circuit from a direct current component voltage of a second circuit in which the apparatus includes a first conductor and a second conductor. The first conductor has a first portion disposed to substantially enclose a first area, a second portion disposed within the first area, a third portion disposed to substantially enclose a second area, and a fourth portion disposed within the second area, the second area lacking an intersection with the first area. The second conductor is configured to be magnetically coupled to the first conductor and has a fifth portion disposed between the first portion and the second portion and a sixth portion disposed between the third portion and the fourth portion.

Claims

1. An apparatus configured to isolate a direct current component voltage of a first circuit from a direct current component voltage of a second circuit, comprising:

a first conductor having a first portion disposed to substantially enclose a first area, a second portion disposed within the first area, a third portion disposed to substantially enclose a second area, and a fourth portion disposed within the second area, the second area lacking an intersection with the first area; and

a second conductor configured to be magnetically coupled to the first conductor and having a fifth portion disposed between the first portion and the second portion and a sixth portion disposed between the third portion and the fourth portion.

2. The apparatus of claim 1, wherein the second portion is connected between the third portion and a first part of the first portion and the fourth portion is connected between the third portion and a second part of the first portion.

3. The apparatus of claim 2, wherein the first conductor has a shape that resembles a symbol for the number eight.

4. The apparatus of claim 3, wherein sides of the shape are at least one of straight or curved.

5. The apparatus of claim 2, wherein the fifth portion is connected between a first part of the sixth portion and a second part of the sixth portion.

6. The apparatus of claim 5, wherein the second conductor has a shape that resembles a symbol for the number eight.

7. The apparatus of claim 6, wherein sides of the shape are at least one of straight or curved.

8. The apparatus of claim 1, wherein a first line between a center of the first area and a center of the second area defines a first axis, a second line that bisects the apparatus and is perpendicular to the first line defines a second axis, the first conductor comprises a plurality of first conductors, and a first of the plurality of first conductors is disposed adjacent to a second of the plurality of first conductors along the second axis.

9. The apparatus of claim 8, wherein an overall area of the apparatus is defined by a length having a first value and a width having a second value and a degree of near field isolation between the first of the plurality of first conductors of the apparatus and the second of the plurality of first conductors of the apparatus is greater than a degree of near field isolation between a corresponding first of a plurality of first conductors of a different apparatus and a corresponding second of the plurality of first conductors of the different apparatus in which the overall area of the different apparatus is defined by the length having the first value and the width having the second value, but in which each of the plurality of first conductors of the different apparatus has a single portion disposed to substantially enclose both a corresponding first area and a corresponding second area.

10. The apparatus of claim 8, wherein the first of the plurality of first conductors is configured to receive a supply voltage and the second of the plurality of first conductors is configured to receive the supply voltage.

11. The apparatus of claim 10, wherein the first of the plurality of first conductors is configured to receive the supply voltage at a center of the first of the plurality of first conductors and the second of the plurality of first conductors is configured to receive the supply voltage at a center of the second of the plurality of first conductors.

12. The apparatus of claim 8, wherein a pair of inputs to the first of the plurality of first conductors is connected to a pair of outputs from a first amplifier and a pair of inputs to the second of the plurality of first conductors is connected to a pair of outputs from a second amplifier.

13. The apparatus of claim 12, wherein a pair of outputs from the second conductor is connected to a load.

14. The apparatus of claim 13, wherein the load includes at least one of a switched network, an antenna load circuitry, or a third amplifier.

15. The apparatus of claim 12, wherein the second conductor comprises a plurality of second conductors and a first of the plurality of second conductors is disposed adjacent to a second of the plurality of second conductors along the second axis.

16. The apparatus of claim 15, wherein a pair of outputs from the first of the plurality of second conductors is connected to a load and a pair of outputs from the second of the plurality of second conductors is connected to the load.

17. The apparatus of claim 16, wherein the load includes at least one of a switched network, an antenna load circuitry, or a third amplifier.

18. The apparatus of claim 15, wherein the plurality of first conductors comprises a plurality of stages of the plurality of first conductors, the plurality of second conductors comprises a plurality of stages of the plurality of second conductors, a first of the plurality of stages of the plurality of first conductors is disposed adjacent to a second of the plurality of stages of the plurality of first conductors along the first axis, and a first of the plurality of stages of the plurality of second conductors is disposed adjacent to a second of the plurality of stages of the plurality of second conductors along the first axis.

19. The apparatus of claim 18, wherein a pair of outputs from a first second conductor of the first of the plurality of stages of the plurality of second conductors is connected to a pair of inputs to a third amplifier and a pair of outputs from a second second conductor of the first of the plurality of stages of the plurality of second conductors is connected to a pair of inputs to a fourth amplifier.

20. The apparatus of claim 19, wherein a pair of inputs to a first first conductor of the second of the plurality of stages of the plurality of first conductors is connected to a pair of outputs from the second amplifier and a pair of inputs to a second first conductor of the second of the plurality of stages of the plurality of first conductors is connected to a pair of outputs from the fourth amplifier.

21. The apparatus of claim 20, wherein a pair of outputs from a first second conductor of the second of the plurality of stages of the plurality of second conductors is connected to a load and a pair of outputs from a second second conductor of the second of the plurality of stages of the plurality of second conductors is connected to the load.

22. The apparatus of claim 21, wherein the load includes at least one of a switched network, an antenna load circuitry, or a fifth amplifier.

23. The apparatus of claim 1, wherein a first line between a center of the first area and a center of the second area defines a first axis, a second line that bisects the apparatus and is perpendicular to the first line defines a second axis, the second conductor comprises a plurality of second conductors, and a first of the plurality of second conductors is disposed adjacent to a second of the plurality of second conductors along the second axis.

24. The apparatus of claim 23, wherein an overall area of the apparatus is defined by a length having a first value and a width having a second value and a degree of near field isolation between the first of the plurality of second conductors of the apparatus and the second of the plurality of second conductors of the apparatus is greater than a degree of near field isolation between a corresponding first of a plurality of second conductors of a different apparatus and a corresponding second of the plurality of second conductors of the different apparatus in which the overall area of the different apparatus is defined by the length having the first value and the width having the second value, but in which each of the plurality of second conductors of the different apparatus has a single portion disposed substantially near external sides of both a corresponding first area and a corresponding second area.

25. The apparatus of claim 23, wherein a pair of inputs to the first conductor is connected to a pair of outputs from an amplifier.

26. The apparatus of claim 25, wherein a pair of outputs from the first of the plurality of second conductors is connected to a first load and a pair of outputs from the second of the plurality of second conductors is connected to a second load.

27. The apparatus of claim 26, wherein at least one of the first load or the second load includes at least one of a switched network, an antenna load circuitry, or an amplifier.

28. An apparatus configured to isolate a direct current component voltage of a first circuit from a direct current component voltage of a second circuit, comprising:

a first conductor having a first portion disposed to substantially enclose a first area, a second portion disposed within the first area, a third portion disposed to substantially enclose a second area, and a fourth portion disposed within the second area, the second area lacking an intersection with the first area, and configured so that a current that flows through the first conductor produces a first magnetic field having a first direction in the first area and a second magnetic field having a second direction in the second area; and

a second conductor configured to be magnetically coupled to the first conductor.

29. An apparatus configured to isolate a direct current component voltage of a first circuit from a direct current component voltage of a second circuit, comprising:

a first conductor having a first portion disposed to substantially enclose a first area, a second portion disposed within the first area, a third portion disposed to substantially enclose a second area, and a fourth portion disposed within the second area, the second area lacking an intersection with the first area; and

a second conductor configured to be magnetically coupled to the first conductor and configured so that a current that flows through the second conductor produces a first magnetic field having a first direction in the first area and a second magnetic field having a second direction in the second area.

30. An apparatus configured to isolate a direct current component voltage of a first circuit from a direct current component voltage of a second circuit, comprising:

a first conductor having a first section disposed to substantially enclose an area and to cross from a first side of the area to a second side of the area substantially at a center of the area and a second section disposed within the area and to cross from the first side to the second side substantially at the center; and

a second conductor disposed between the first section and the second section and to cross from the first side to the second side substantially at the center and configured to be magnetically coupled to the first conductor.