IP Library › Granted Patent US 10,615,835
Granted Patent B2
US 10,615,835 · App. 15/832,730 · Granted Apr 7, 2020

Power amplification system with variable supply voltage

Inventors: David Richard Pehlke (Westlake Village, CA); David Steven Ripley (Marion, IA); Philip John Lehtola (Cedar Rapids, IA)
Assignee: Skyworks Solutions, Inc.
H04B1/3833H03F1/0227H03F3/191H03F3/211H03F3/24H03F3/72H03F2200/111H03F2200/451H03F2203/21106H03F2203/7209H04B2001/0408
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Quick Facts
Patent No.
US 10,615,835
App. No.
15/832,730
Granted
Apr 7, 2020
Kind
B2
Abstract

Power amplification system with variable supply voltage. A power amplification system can include a power amplifier and a boost converter configured to provide a supply voltage to the power amplifier. The power amplification system can include a control system configured to provide a boost converter control signal to the boost converter to adjust the supply voltage based on a parameter associated with the power amplifier.

Claims (24)

1. A wireless device comprising:

a transceiver configured to generate a radio-frequency signal;

a front-end module in communication with the transceiver, the front-end module including a packaging substrate configured to receive a plurality of components, the front-end module further including a power amplification system implemented on the packaging substrate, the power amplification system including a power amplifier configured to amplify the radio-frequency signal, the power amplification system further including a boost converter configured to provide a supply voltage to the power amplifier, the power amplification system further including a control system configured to provide a boost converter control signal to the boost converter, the boost converter control signal including a reference voltage from a set of reference voltages including a first reference voltage to select a first supply voltage and a second reference voltage to select a second supply voltage based on a parameter associated with the power amplifier, the parameter associated with the power amplifier including an operating mode of the power amplifier, the boost converter control signal provided to the boost converter to support the operating mode; and

an antenna in communication with the front-end module, the antenna being configured to transmit the amplified radio-frequency signal.

2. The wireless device of claim 1 wherein the control system of the power amplification system includes a supply system control component and a power amplifier control component.

3. The wireless device of claim 2 wherein the supply system control component is communicatively coupled to the boost converter and the power amplifier control component is communicatively coupled to the power amplifier.

4. The wireless device of claim 3 wherein the parameter associated with the power amplifier includes a sensed condition of the power amplifier.

5. The wireless device of claim 4 wherein the supply system control component is configured to detect the sensed condition of the power amplifier.

6. The wireless device of claim 1 wherein the boost converter control signal is at least one of a reference voltage, a delta signal, or an enable signal.

7. The wireless device of claim 1 wherein the operating mode includes an increased linearity mode.

8. The wireless device of claim 7 wherein the increased linearity mode is at least one of a high-voltage mode or high output power mode.

9. The wireless device of claim 1 wherein the boost converter is powered by a battery voltage.

10. A power amplification system comprising:

a power amplifier;

a boost converter configured to provide a supply voltage to the power amplifier; and

a control system configured to provide a boost converter control signal to the boost converter, the boost converter control signal including a reference voltage from a set of reference voltages including a first reference voltage to select a first supply voltage and a second reference voltage to select a second supply voltage based on a parameter associated with the power amplifier, the parameter associated with the power amplifier including an operating mode of the power amplifier, the boost converter control signal provided to the boost converter to support the operating mode.

11. The power amplification system of claim 10 wherein the control system of the power amplification system includes a supply system control component and a power amplifier control component.

12. The power amplification system of claim 11 wherein the supply system control component is communicatively coupled to the boost converter and the power amplifier control component is communicatively coupled to the power amplifier.

13. The power amplification system of claim 12 wherein the parameter associated with the power amplifier includes a sensed condition of the power amplifier.

14. The power amplification system of claim 13 wherein the supply system control component is configured to detect the sensed condition of the power amplifier.

15. The power amplification system of claim 10 wherein the boost converter control signal is at least one of a reference voltage, a delta signal, or an enable signal.

16. The power amplification system of claim 10 wherein the operating mode includes an increased linearity mode.

17. The power amplification system of claim 16 wherein the increased linearity mode is at least one of a high-voltage mode or high output power mode.

18. The power amplification system of claim 10 wherein the boost converter is powered by a battery voltage.

Continuity (3)
Continuation 14867192 · Sep 28, 2015
Provisional Application 62116459 · Feb 15, 2015
Related Publication 20180159577A1 · Jun 7, 2018
Cited By (3)
US 12,250,010 US 12,627,264 US 12,676,641