Multi-mode power amplifier signal switching
AssigneeSkyworks Solutions, Inc.
InventorLui Ray Lam
Life of this patent
Estimating the term…
Abstract
A switching circuit comprises a first transistor, a transformer including a first inductor and a second inductor that is co-centric with the first inductor, a first switch, a second switch, a second transistor, a first output, a second output, and coupling circuitry configured to couple the first inductor to the first transistor, a first end of the second inductor, the first switch, and the first output together at a first node, a second end of the second inductor, the second switch, and the second transistor together at a second node, and the second output to the second transistor.
Claims18
A switching circuit comprising:
- a first transistor;
- a transformer including a first inductor and a second inductor that is co-centric with the first inductor;
- a first switch;
- a second switch;
- a second transistor;
- a first output;
- a second output;
- and
- a matching network coupled between the second output and the second transistor;
- the first inductor coupled to the first transistor, a first end of the second inductor, the first switch, and the first output together at a first node, a second end of the second inductor coupled to the second switch and the second transistor together at a second node, and the second output coupled to the second transistor.
A semiconductor die comprising:
- a first transistor;
- a transformer comprising a first inductor and a second inductor that is co-centric with the first inductor;
- a first switch;
- a second switch;
- a second transistor;
- a first output;
- a second output;
- and
- a matching network coupled between the second output and the second transistor;
- the first inductor coupled to the first transistor, a first end of the second inductor, the first switch, and the first output together at a first node, a second end of the second inductor coupled to the second switch and the second transistor together at a second node, and the second output coupled to the second transistor.
A packaged module comprising:
- a first transistor;
- a transformer comprising a first inductor and a second inductor that is co-centric with the first inductor;
- a first switch;
- a second switch;
- a second transistor;
- a first output;
- a second output;
- and
- a matching network coupled between the second output and the second transistor;
- the first inductor coupled to the first transistor, a first end of the second inductor, the first switch, and the first output together at a first node, a second end of the second inductor coupled to the second switch and the second transistor together at a second node, and the second output coupled to the second transistor.
Dependencies are inferred from the claim text.