# US 10,771,015 B2 · Method and device for selectively supplying voltage to multiple amplifiers by using switching regulator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,771,015 B2 - Document ID: US10771015B2 - Status: Granted - Kind: B2 - Application number: 16/665,327 - Filed: 2019-10-28 - Published: 2020-04-30 - Granted: 2020-09-08 - Earliest claimed: 2018-10-26 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Jooseung Kim; Dongil Yang; Youngmin Lee - Web page: https://patentgrep.com/patent/US10771015B2 ## CPC - H03F 1/0227: {using supply converters} - G05F 1/56: using semiconductor devices in series with the load as final control devices (G05F1/461 takes precedence) - H03F 1/26: Modifications of amplifiers to reduce influence of noise generated by amplifying elements - H03F 3/193: with field-effect devices (H03F3/195 takes precedence) - H03F 3/211: {using a combination of several amplifiers (H03F3/60 takes precedence)} - H03F 3/68: Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics {(power amplifiers using a combination of several semiconductor amplifiers H03F3/211; combinations of amplifiers using coupling networks with distributed constants H03F3/602)} - H03F 2200/102: A non-specified detector of a signal envelope being used in an amplifying circuit - H03F: AMPLIFIERS - G05F: SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES ## Abstract Various embodiments disclose a method and a device including: an antenna, a switching regulator, communication chip including an amplifier and a linear regulator operably connected to the amplifier and the switching regulator, the communication chip configured to transmit a radio-frequency signal from the electronic device through the antenna, and control circuitry configured to control the communication chip such that the linear regulator provides the amplifier with a voltage corresponding to an envelope of an input signal input to the amplifier, the input signal corresponding to the radio-frequency signal. ## Claims ### Claim 1 An electronic device comprising: an antenna; a switching regulator; communication chip including an amplifier and a linear regulator operably connected to the amplifier and the switching regulator, the communication chip configured to transmit a radio-frequency signal through the antenna, the amplifier being configured to receive an input signal, wherein the radio-frequency signal corresponds to the input signal of the amplifier; and control circuitry configured to control the communication chip such that the linear regulator provides the amplifier with a voltage corresponding to an envelope of the input signal, wherein the linear regulator and the amplifier are disposed inside the communication chip, and the switching regulator is disposed outside the communication chip. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the control circuitry includes an envelope tracking digital-analog converter (ET DAC), and the ET DAC is disposed inside the communication chip. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein the switching regulator is a first switching regulator, the communication chip is first communication chip, the amplifier is a first amplifier, and the linear regulator is a first linear regulator, wherein the electronic device further comprises: an envelope tracking (ET) modulator including a second switching regulator and a second linear regulator; and second communication chip operably connected to the ET modulator and including a second amplifier. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the communication chip is first communication chip, the amplifier is a first amplifier, and the linear regulator is a first linear regulator, wherein the electronic device further comprises second communication chip including a second amplifier and a second linear regulator, and the switching regulator is operably connected to the second communication chip. ### Claim 5 (depends on 4) The electronic device of claim 4, wherein the first communication chip is arranged closer to a lower end of the electronic device than an upper end of the electronic device, the second communication chip is arranged closer to the upper end of the electronic device than the lower end of the electronic device, and the switching regulator is arranged such that an electric path between the switching regulator and the second communication chip is longer than an electric path between the switching regulator and the first communication chip. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein the amplifier is a first amplifier, wherein the communication chip further comprises a second amplifier. ### Claim 7 (depends on 6) The electronic device of claim 6, wherein the second amplifier is configured to amplify a radio-frequency signal received through the antenna. ### Claim 8 (depends on 6) The electronic device of claim 6, wherein the first amplifier is a power amplifier, and the second amplifier is a low-noise amplifier. ### Claim 9 (depends on 1) The electronic device of claim 1, wherein the control circuitry includes an envelope tracking digital-analog converter (ET DAC) configured to adjust the envelope to track the radio-frequency signal to be transmitted through the antenna. ### Claim 10 (depends on 1) The electronic device of claim 1, wherein the switching regulator and the communication chip are arranged such that an electric path between the switching regulator and the linear regulator included in the communication chip is longer than an electric path between the linear regulator and the amplifier. ### Claim 11 (depends on 1) The electronic device of claim 1, wherein the control circuitry is included in the communication chip, and the switching regulator and the communication chip are arranged such that an electric path between the switching regulator and the linear regulator included in the communication chip is longer than an electric path between the control circuitry and the linear regulator. ### Claim 12 A communication chip for mounting on a circuit board of an electronic device to amplify a radio-frequency signal to be transmitted or received through an antenna of the electronic device, the communication chip comprising: an amplifier configured to receive an input signal, wherein a radio-frequency signal to be transmitted through the antenna corresponds to the input signal of the amplifier; and a linear regulator configured to control a switching regulator of the electronic device to provide the amplifier with a voltage corresponding to an envelope of the input signal, wherein the linear regulator and the amplifier are disposed inside the communication chip, and the switching regulator is disposed outside the communication chip. ### Claim 13 (depends on 12) The communication chip of claim 12, wherein when the communication chip is mounted on the circuit board of the electronic device, a first electric path between the amplifier and the linear regulator is shorter than a second electric path between the switching regulator and the linear regulator. ### Claim 14 (depends on 13) The communication chip of claim 13, wherein the second electric path is longer than a third electric path between an envelope tracking digital-analog converter (ET DAC) and the linear regulator. ### Claim 15 (depends on 12) The communication chip of claim 12, further comprising a low-noise amplifier, wherein the low-noise amplifier is configured to amplify a radio-frequency signal received through the antenna, and the amplifier is configured to amplify a radio-frequency signal to be transmitted through the antenna. ### Claim 16 (depends on 12) The communication chip of claim 12, further comprising an envelope tracking digital-analog converter (ET DAC) operably connected to the linear regulator, the ET DAC configured to control the linear regulator to provide the amplifier with a voltage corresponding to an envelope of an input signal input to the amplifier, the input signal corresponding to the radio-frequency signal to be transmitted through the antenna. ### Claim 17 (depends on 12) The communication chip of claim 12, wherein the linear regulator is configured to adjust a voltage corresponding to the envelope of the input signal to track the envelope. ### Claim 18 (depends on 12) The communication chip of claim 12, wherein the linear regulator is configured to regulate a signal output from the switching regulator such that a voltage corresponding to the envelope is output. ### Claim 19 An electronic device comprising: an antenna; a switching regulator; an amplifier operably connected to the switching regulator, and configured to receive an input signal, wherein a radio-frequency signal to be transmitted through the antenna corresponds to the input signal of the amplifier; a linear regulator operably connected to the switching regulator and the amplifier; and an envelope tracking digital-analog converter (ET DAC) configured to control the linear regulator to provide the amplifier with a voltage corresponding to an envelope of the input signal, wherein an entire electric path coupled between the linear regulator and the amplifier is disposed within a communication chip, and wherein a portion of electric path coupled between the switching regulator and the linear regulator is disposed between the communication chip and a separate electronic component containing the switching regulator.