Electronic device including power supply for power amplifier

Patent metadata

Field	Value
Publication number	US-2025337363-A1
Application number	US-202519188783-A
Country	US
Kind code	A1
Filing date	Apr 24, 2025
Priority date	Apr 24, 2024
Publication date	Oct 30, 2025
Grant date	—

Abstract

Wireless communication circuitry for use in an electronic device may comprise: a power amplifier configured to amplify (RF) signals in a first frequency band of a first radio access technology (RAT) in a first communication mode and to amplify RF signals in a second frequency band of a second RAT in a second communication mode and a switch including a first input node configured to be connectable to receive an envelope tracking power supply signal, a second input node configured to be connectable to receive an average power tracking (APT) power supply signal, and an output node connected to the PA. The switch may be configured to switchably connect one of the first input node and the second input node to the output node in response to a switching control signal.

First claim

What is claimed is:

1 . Wireless communication circuitry configured for use in an electronic device comprising:
a power amplifier (PA) configured to amplify RF signals in a first frequency band of a first radio access technology (RAT) in a first communication mode and to amplify RF signals in a second frequency band of a second RAT in a second communication mode; and a switch including a first input node configured to be connectable to receive an envelope tracking (ET) power supply signal, a second input node configured to be connectable to receive an average power tracking (APT) power supply signal, and an output node connected to the PA, and configured to switchably connect one of the first input node and the second input node to the output node in response to a switching control signal.

2 . The wireless communication circuitry of claim 1 , wherein in the first communication mode, the wireless communication circuitry is configured to input the switching control signal corresponding to a first switching signal to the switch to select the ET power supply signal to be provided to the PA, and
in the second communication mode, the wireless communication circuitry is configured to input the switching control signal corresponding to a second switching signal to the switch to select the APT power supply signal to be provided to the PA.

3 . The wireless communication circuitry of claim 1 , wherein the first frequency band includes a first RF band related to the APT power supply signal for RF amplification, and
wherein the second frequency band includes a second RF band related to the ET power supply signal for RF amplification.

4 . The wireless communication circuitry of claim 1 , wherein the first RAT comprises at least one of 2nd generation (2G) communication technology or a satellite communication technology, and
wherein the second RAT comprises at least one of 4th generation (4G) communication technology, long-term evolution (LTE) communication technology, 5th generation (5G) communication technology, or new radio (NR) communication technology.

5 . The wireless communication circuitry of claim 1 ,
wherein the ET power supply signal and the APT power supply signal are configured to be generated by different power supply modules, respectively.

6 . An electronic device comprising:
a first power supply configured to generate a first electrical power by an envelope tracking (ET) power supply scheme and a second electrical power by an average power tracking (APT) power supply scheme; a second power supply configured to generate a third electrical power by the ET power supply scheme and a fourth electrical power by the APT power supply scheme; a first power amplifier (PA) configured to amplify RF signals in a first frequency band of a first radio access technology (RAT) and a second frequency band of a second RAT; and a first switch including a first input node configured to be connectable to receive the first electrical power, a second input node configured to be connectable to receive the fourth electrical power, and a first output node connected to the first PA, wherein the first switch is configured to switchably connect one of the first input node and the second input node to the first output node, in response to a first switching control signal for selecting, based on a communication mode of the electronic device, one of the first electrical power and the fourth electrical power and providing the selected one to the first PA via the first output node.

7 . The electronic device of claim 6 , comprising:
a second PA configured to amplify RF signals in a third frequency band of the first RAT and a fourth frequency band of the second RAT; and a second switch including a third input node configured to be connectable to receive the third electrical power, a fourth input node configured to be connectable to receive the second electrical power, and a second output node connected to the second PA, wherein the second switch is configured to switchably connect one of the third input node and the fourth input node to the second output node in response to a second switching control signal for selecting, based on the communication mode of the electronic device, one of the third electrical power and the second electrical power and providing the selected on to the second PA via the second output node.

8 . The electronic device of claim 7 , wherein the first power supply includes a first ET modulator, wherein the first ET modulator comprises an ET port configured to output either the first electrical power or the second electrical power, and an APT port configured to output the second electrical power, and
wherein the second power supply comprises a second ET modulator, and wherein the second ET modulator comprises an ET port configured to output either the third electrical power or the fourth electrical power, and an APT port configured to output the fourth electrical power.

9 . The electronic device of claim 7 , wherein the first RAT comprises at least one of a 2nd generation (2G) communication technology or a satellite communication technology, and
wherein the second RAT comprises at least one of 4th generation (4G) communication technology, long-term evolution (LTE) communication technology, 5th generation (5G) communication technology, or new radio (NR) communication technology.

10 . The electronic device of claim 9 , comprising
memory storing instructions; at least one processor, comprising processing circuitry, operatively connected to the memory, and individually and/or collectively, configured to cause the electronic device to: provide the first switching control signal and the second switching control signal based on the communication mode of the electronic device; and a transceiver configured to generate at least one RF transmit signal using the first RAT or the second RAT based on the communication mode, and to output the at least one RF transmit signal to at least one of the first PA or the second PA, wherein the instructions, when executed by the at least one processor, individually and/or collectively, cause the electronic device to: based on the electronic device operating in a first communication mode using the 2G communication technology, control the first switch to connect the fourth electrical power to the first PA, or control the second switch to connect the second electrical power to the second PA, and based on the electronic device operating in a standalone (SA) communication mode using the NR communication technology or in an EN-DC (evolved universal mobile telecommunications system terrestrial radio access (E-UTRA) NR dual connectivity) communication mode, control the first switch to connect the first electrical power to the first PA, and/or control the second switch to connect the third electrical power to the second PA.

11 . The electronic device of claim 7 , comprising:
a first decoupling capacitor connected to the second input node of the first switch and configured to remove noise of the fourth electrical power, the first decoupling capacitor having a capacitance of 1 μF or more; and a second decoupling capacitor connected to the fourth input node of the second switch and configured to remove noise of the second electrical power, the second decoupling capacitor having a capacitance of 1 μF or more.

12 . The electronic device of claim 6 ,
wherein at least one of the first frequency band of the first RAT or the second frequency band of the second RAT includes a frequency band of less than 1 GHz, wherein at least one of the third frequency band of the first RAT or the fourth frequency band of the second RAT includes a f

Assignees

• Samsung Electronics Co Ltd

Inventors

• Moon Yohan
• Kang Hyunsang
• Na Hyoseok
• Yang Dongil

Classifications

• H03F3/245

  with semiconductor devices only · CPC title

• H03F2203/7209

  the gated amplifier being switched from a first band to a second band · CPC title

• H03F2200/294

  the amplifier being a low noise amplifier [LNA] · CPC title

• H03F2200/102

  A non-specified detector of a signal envelope being used in an amplifying circuit · CPC title

• H03F2200/451

  the amplifier being a radio frequency amplifier · CPC title