US 12,614,656 B2Granted

Inductor device

AssigneeRealtek Semiconductor Corp.

InventorsHsiao-Tsung Yen, Jon-Jin Chen

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Abstract

An inductor device includes a first inductor, a switch, and a second inductor. The first inductor includes a first, a second, a third, and a fourth trace. The first trace is disposed at a first area of the inductor device. The second trace is disposed inside the first trace. The third trace is disposed at a second area of the inductor device. The fourth trace is disposed inside the third trace. When the switch is turned off, the first, the second, the third, and the fourth trace form first path. When the switch is turned on, the first, the third, and the fourth trace form second path. The second inductor includes a fifth and a sixth trace. The fifth trace is disposed at the first area of the inductor device. The six trace is disposed at the second area of the inductor device, and coupled to the fifth trace.

Claims19

Dependent claims

An inductor device, comprising:

a first inductor, comprising:
a first trace, disposed in a first area of the inductor device;
a second trace, disposed inside the first trace;
a third trace, disposed in a second area of the inductor device, wherein the first area is different from the second area;
and
a fourth trace, disposed inside the third trace;
a second inductor, comprising:
a fifth trace, disposed in the first area of the inductor device;
and
a sixth trace, disposed in the second area of the inductor device, and coupled to the fifth trace,
wherein the first inductor further comprises:
a seventh trace, disposed inside the third trace;
and
a switch coupled to the fourth trace and the seventh trace, wherein when the switch is turned off, the first trace, the second trace, the third trace, the fourth trace, and the seventh trace are coupled together to form a first path,
wherein when the switch is turned on, the first trace, the third trace, and the fourth trace are coupled together through the switch to form a second path.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/807,378Filed 16 Jun 2022
Priority: TW 11110969116 Mar 2022
Published: US 2023/0298796 A121 Sep 2023
Granted: 28 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H01F 17/0013
Printed inductances: with stacked layers
H01F 21/12
Variable inductances or transformers of the signal type: discontinuously variable, e.g. tapped
H01F 17/0006
Fixed inductances of the signal type: printed inductances
H01F 27/2804
Coils; Windings; Conductive connections: printed windings