KR102534030B1 - Apparatus and method for selectively supplying voltage to a plurality of amplifiers using switching regulator - Google Patents

Abstract

Various embodiments of the present invention provide a first amplifier configured to amplify a first transmission signal, and to supply a first voltage to the first amplifier based on an envelope corresponding to a first designated frequency band of the first transmission signal. A second voltage based on a first transmission circuit including a configured first linear regulator, a second amplifier configured to amplify a second transmission signal, and an envelope corresponding to a second designated frequency band of the second transmission signal. a second transmission circuit including a second linear regulator configured to supply a second amplifier, a switching regulator electrically connected to the first amplifier and the second amplifier, and a control circuit, wherein the control circuit comprises: When the first transmission signal is transmitted to an external electronic device through a transmission circuit, a third voltage is applied based on an envelope corresponding to a third frequency band lower than the first designated frequency band of the first transmission signal. When supplying the second transmission signal to the first amplifier using a regulator and transmitting the second transmission signal to an external electronic device through the second transmission circuit, the frequency band lower than the second designated frequency band of the second transmission signal Disclosed is a method and apparatus configured to supply a fourth voltage to the second amplifier using the switching regulator based on an envelope corresponding to three frequency bands. Various embodiments are possible.

Description

Method and apparatus for selectively supplying voltage to a plurality of amplifiers using a switching regulator

Various embodiments of the present invention disclose a method and apparatus for selectively supplying voltage to a plurality of amplifiers using a switching regulator.

Wireless communication systems have been developed in a direction to support a higher data transmission rate in order to meet the traffic demand of continuously increasing wireless data. In order to support a high data rate, a bandwidth of a signal is widened, and a modulation method of the signal is complicated, so that a peak to average power ratio (PAPR) increases. Therefore, a power amplifier that consumes a lot of power in an electronic device must have high efficiency and high linearity.

In order to have high efficiency and high linearity for wideband and high PAPR signals, an envelope tracking (ET) technology has been applied to a fourth generation (4G) communication system. ET technology is a technology that reduces power consumption by applying an envelope signal of an RF input signal applied to an amplifier (eg, an RF power amplifier) to a power supply voltage of the amplifier, unlike a conventional amplifier using a fixed power supply voltage. ET technology adjusts the envelope signal so that the voltage (Vcc) applied to the amplifier tracks the envelope of the RF signal, so power dissipation is minimized and the amplifier can always operate at high efficiency. The amplifier generates third-order intermodulation distortion (IMD3) during signal amplification, and the third-order intermodulation distortion may have a sweet spot point. ET technology is applied to the amplifier If so, it can have higher linear characteristics than conventional power amplifiers through Vcc shaping capable of tracking the sweet spot.

As the wireless communication system evolved from 3G (third generation) to 4G, transmission speed was rapidly improved, and differentiated services were actively developed in the mobile service market. However, the evolution of the mobile communication network does not stop there, and discussions on new 5G mobile communication such as eMBB (enhanced mobile-broadband), URLLC (ultra-reliable & low latency communication), and mMTC (massive machine-type communication) are being discussed at home and abroad. It is progressing in earnest. Actual implementation of 5G mobile communication can be largely divided into Sub6 5G and mmWave 5G. Compared to 4G LTE signals, Sub6 5G and mmWave 5G have more complex signal modulation schemes for faster ultra-high-speed data transmission, resulting in wider bandwidth and higher PAPR. It is difficult to develop a modulator that can track the wider signal bandwidth, but ET technology is more and more needed to transmit a signal with a larger PAPR because the efficiency of the RF power amplifier is lowered. For this reason, developers of RF system chipset solutions and ET modulators are striving to develop wideband ET modulators so that ET technology can be applied to 5G.

In various embodiments, by including a linear regulator of an ET modulator (envelope tracking modulator) in a transmission circuit, a method and apparatus capable of applying ET technology to a wide bandwidth signal without limiting the distance between the ET modulator and the transmission circuit are disclosed. can do.

An electronic device according to various embodiments of the present disclosure may set a first voltage based on a first amplifier configured to amplify a first transmission signal and an envelope corresponding to a first designated frequency band of the first transmission signal. based on a first transmit circuit including a first linear regulator configured to supply a first amplifier, a second amplifier configured to amplify a second transmit signal, and an envelope corresponding to a second designated frequency band of the second transmit signal. a second transmission circuit including a second linear regulator configured to supply a second voltage to the second amplifier, a switching regulator electrically connected to the first amplifier and the second amplifier, and a control circuit; When the circuit transmits the first transmission signal to an external electronic device through the first transmission circuit, based on an envelope corresponding to a third frequency band lower than the first designated frequency band of the first transmission signal When a third voltage is supplied to the first amplifier using the switching regulator, and the second transmission signal is transmitted to an external electronic device through the second transmission circuit, the second designated transmission signal of the second transmission signal Based on the envelope corresponding to the third frequency band lower than the frequency band, a fourth voltage may be supplied to the second amplifier using the switching regulator.

An electronic device according to various embodiments of the present disclosure includes a first amplifier configured to amplify a first transmission signal, and a first envelope based on an envelope corresponding to a first designated frequency band of the first transmission signal ( a first transmit circuit comprising a first linear regulator configured to provide an envelope) signal to the first amplifier; a second transmit circuit comprising a second amplifier configured to amplify a second transmit signal; an envelope tracking (ET) modulator electrically connected to the first amplifier and the second amplifier; and a control circuit, wherein the control circuit transmits the first envelope signal to the first amplifier by using the ET modulator when the first transmission signal is transmitted to an external electronic device through the first transmission circuit. , and when the second transmission signal is transmitted to an external electronic device through the second transmission circuit, the second envelope signal output from the ET modulator may be provided to the second amplifier.

An electronic device according to various embodiments of the present disclosure may set a first voltage based on a first amplifier configured to amplify a first transmission signal and an envelope corresponding to a first designated frequency band of the first transmission signal. A first transmit circuit comprising a first linear regulator configured to supply a first amplifier, a second transmit circuit comprising a second amplifier configured to amplify a second transmit signal, electrically connected to the first amplifier and the second amplifier. An envelope tracking (ET) modulator including a second linear regulator connected to and configured to supply a second voltage to the second amplifier based on an envelope corresponding to a second designated frequency band of the second transmission signal, and control circuit, wherein the control circuit, when transmitting the first transmission signal to an external electronic device through the first transmission circuit, operates in a third frequency band lower than the first designated frequency band of the first transmission signal. When a third voltage is supplied to the first amplifier using the ET modulator based on a corresponding envelope and the second transmission signal is transmitted to an external electronic device through the second transmission circuit, the second Based on an envelope corresponding to the third frequency band lower than the second designated frequency band of the transmission signal, a fourth voltage may be supplied to the second amplifier using the ET modulator.

According to various embodiments, by including the linear regulator of the ET modulator in the transmission circuit, the ET technique can be applied to a wide bandwidth signal without limiting the distance between the ET modulator and the transmission circuit.

According to various embodiments, uplink carrier aggregation (ULCA) or e-UTRA-NR dual connectivity (ENDC) technology may be implemented in an electronic device by configuring a power amplifier of the electronic device with a small number of ET modulators.

1 is a block diagram of an electronic device 101 within a network environment 100 according to various embodiments.
2 is a block diagram 200 of an electronic device 101 for supporting legacy network communication and 5G network communication according to various embodiments.
3 is a block diagram of an electronic device to which an ET modulator is applied to a transmission circuit according to various embodiments of the present disclosure.
4A to 4C are diagrams illustrating the configuration of an ET modulator according to various embodiments.
5 is a diagram illustrating a current graph of an ET modulator according to various embodiments.
6A is a diagram illustrating a configuration of an electronic device to which an ET modulator according to a comparative example is applied.
6B is a block diagram of an electronic device to which an ET modulator is applied to a transmission circuit according to various embodiments.
7 is a diagram illustrating a voltage measurement graph simulating an ET modulator according to various embodiments.
8 to 10 are diagrams illustrating the configuration of an electronic device including a transmission circuit to which an ET modulator according to various embodiments is applied.
11 is a diagram illustrating an operating method of an electronic device according to various embodiments.

Electronic devices according to various embodiments disclosed in this document may be devices of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. An electronic device according to an embodiment of the present document is not limited to the aforementioned devices.

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, like reference numbers may be used for like or related elements. The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates otherwise. In this document, "A or B", "at least one of A and B", "at least one of A or B," "A, B or C," "at least one of A, B and C," and "A Each of the phrases such as "at least one of , B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "secondary" may simply be used to distinguish a given component from other corresponding components, and may be used to refer to a given component in another aspect (eg, importance or order) is not limited. A (e.g., first) component is said to be "coupled" or "connected" to another (e.g., second) component, with or without the terms "functionally" or "communicatively." When mentioned, it means that the certain component may be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term "module" used in this document may include a unit implemented by hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document provide one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (eg, the program 140) including them. For example, a processor (eg, the processor 120 ) of a device (eg, the electronic device 101 ) may call at least one command among one or more instructions stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. Device-readable storage media may be provided in the form of non-transitory storage media. Here, 'non-temporary' only means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.

According to one embodiment, the method according to various embodiments disclosed in this document may be provided by being included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. A computer program product is distributed in the form of a device-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play Store ^TM ) or between two user devices ( It can be distributed (eg downloaded or uploaded) online, directly between smartphones. In the case of online distribution, at least part of the computer program product may be temporarily stored or temporarily created in a device-readable storage medium such as a manufacturer's server, an application store server, or a relay server's memory.

According to various embodiments, each component (eg, module or program) of the components described above may include a singular entity or a plurality of entities. According to various embodiments, one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. . According to various embodiments, the actions performed by a module, program, or other component are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the actions are executed in a different order, or omitted. or one or more other actions may be added.

1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments.

Referring to FIG. 1 , in a network environment 100, an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or through a second network 199. It is possible to communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120, a memory 130, an input device 150, an audio output device 155, a display device 160, an audio module 170, a sensor module ( 176), interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, or antenna module 197 ) may be included. In some embodiments, in the electronic device 101, at least one of these components (eg, the display device 160 or the camera module 180) may be omitted or one or more other components may be added. In some embodiments, some of these components may be implemented as a single integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illumination sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, the program 140) to cause at least one other component (eg, hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or calculations. According to one embodiment, as at least part of data processing or operation, processor 120 transfers instructions or data received from other components (e.g., sensor module 176 or communication module 190) to volatile memory 132. , process commands or data stored in the volatile memory 132 , and store resultant data in the non-volatile memory 134 . According to one embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphics processing unit, an image signal processor) that may operate independently or together therewith. , sensor hub processor, or communication processor). Additionally or alternatively, the secondary processor 123 may be configured to use less power than the main processor 121 or to be specialized for a designated function. The secondary processor 123 may be implemented separately from or as part of the main processor 121 .

The secondary processor 123 may, for example, take the place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, running an application). ) state, together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to one embodiment, the auxiliary processor 123 (eg, an image signal processor or a communication processor) may be implemented as part of other functionally related components (eg, the camera module 180 or the communication module 190). there is.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101 . The data may include, for example, input data or output data for software (eg, program 140) and commands related thereto. The memory 130 may include volatile memory 132 or non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input device 150 may receive a command or data to be used for a component (eg, the processor 120) of the electronic device 101 from an outside of the electronic device 101 (eg, a user). The input device 150 may include, for example, a microphone, mouse, keyboard, or digital pen (eg, a stylus pen).

The sound output device 155 may output sound signals to the outside of the electronic device 101 . The audio output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback, and the receiver can be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display device 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to an embodiment, the display device 160 may include a touch circuitry set to sense a touch or a sensor circuit (eg, a pressure sensor) set to measure the intensity of force generated by the touch. there is.

The audio module 170 may convert sound into an electrical signal or vice versa. According to an embodiment, the audio module 170 acquires sound through the input device 150, the audio output device 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg: Sound may be output through the electronic device 102 (eg, a speaker or a headphone).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do. According to one embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a bio sensor, It may include a temperature sensor, humidity sensor, or light sensor.

The interface 177 may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device 101 to an external electronic device (eg, the electronic device 102). According to one embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 may be physically connected to an external electronic device (eg, the electronic device 102). According to one embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user may perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to one embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to one embodiment, the power management module 388 may be implemented as at least part of a power management integrated circuit (PMIC), for example.

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). Establishment and communication through the established communication channel may be supported. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 may be a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, a : a local area network (LAN) communication module or a power line communication module). Among these communication modules, the corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, WiFi direct, or IrDA (infrared data association)) or a second network 199 (eg, a cellular network, the Internet, or It may communicate with an external electronic device via a computer network (eg, a telecommunications network such as a LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199. The electronic device 101 may be identified and authenticated.

The antenna module 197 may transmit or receive signals or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module may include one antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is selected from the plurality of antennas by the communication module 190, for example. can be chosen A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, RFIC) may be additionally formed as a part of the antenna module 197 in addition to the radiator.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the electronic devices 102 and 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or part of operations executed in the electronic device 101 may be executed in one or more external devices among the external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 instead of executing the function or service by itself. Alternatively or additionally, one or more external electronic devices may be requested to perform the function or at least part of the service. One or more external electronic devices receiving the request may execute at least a part of the requested function or service or an additional function or service related to the request, and deliver the execution result to the electronic device 101 . The electronic device 101 may provide the result as at least part of a response to the request as it is or additionally processed. To this end, for example, cloud computing, distributed computing, or client-server computing technology may be used.

2 is a block diagram 200 of an electronic device 101 for supporting legacy network communication and 5G network communication according to various embodiments.

Referring to FIG. 2, the electronic device 101 includes a first communication processor 212, a second communication processor 214, a first radio frequency integrated circuit (RFIC) 222, a second RFIC 224, and a third RFIC 226, fourth RFIC 228, first radio frequency front end (RFFE) 232, second RFFE 234, first antenna module 242, second antenna module 244, and antenna (248). The electronic device 101 may further include a processor 120 and a memory 130 .

The network 199 may include a first network 292 and a second network 294 . According to another embodiment, the electronic device 101 may further include at least one of the components illustrated in FIG. 1 , and the network 199 may further include at least one other network. According to one embodiment, a first communication processor 212, a second communication processor 214, a first RFIC 222, a second RFIC 224, a fourth RFIC 228, a first RFFE 232, and the second RFFE 234 may form at least a portion of the wireless communication module 192 . According to another embodiment, the fourth RFIC 228 may be omitted or included as part of the third RFIC 226 .

The first communication processor 212 may establish a communication channel of a band to be used for wireless communication with the first network 292 and support legacy network communication through the established communication channel. According to various embodiments, the first network may be a legacy network including a second generation (2G), 3G, 4G, or long term evolution (LTE) network. The second communication processor 214 establishes a communication channel corresponding to a designated band (eg, about 6 GHz to about 60 GHz) among bands to be used for wireless communication with the second network 294, and 5G network communication through the established communication channel can support According to various embodiments, the second network 294 may be a 5G network defined by a third generation partnership project (3GPP). Additionally, according to one embodiment, the first communication processor 212 or the second communication processor 214 corresponds to another designated band (eg, about 6 GHz or less) among bands to be used for wireless communication with the second network 294. It is possible to support establishment of a communication channel and 5G network communication through the established communication channel. According to one embodiment, the first communication processor 212 and the second communication processor 214 may be implemented on a single chip or in a single package. According to various embodiments, the first communication processor 212 or the second communication processor 214 may be formed in a single chip or single package with the processor 120, coprocessor 123, or communication module 190. there is.

The first RFIC 222 transmits, during transmission, a baseband signal generated by the first communication processor 212 to about 700 MHz to about 3 GHz used in the first network 292 (eg, a legacy network). of radio frequency (RF) signals. In reception, an RF signal is obtained from a first network 292 (eg, a legacy network) via an antenna (eg, first antenna module 242), and via an RFFE (eg, first RFFE 232). It can be preprocessed. The first RFIC 222 may convert the preprocessed RF signal into a baseband signal to be processed by the first communication processor 212 .

When transmitting, the second RFIC 224 transfers the baseband signal generated by the first communication processor 212 or the second communication processor 214 to the second network 294 (eg, a 5G network). It can be converted into an RF signal (hereinafter referred to as a 5G Sub6 RF signal) of the Sub6 band (eg, about 6 GHz or less). At reception, a 5G Sub6 RF signal is obtained from a second network 294 (eg, a 5G network) through an antenna (eg, the second antenna module 244), and an RFFE (eg, the second RFFE 234) It can be pre-treated through The second RFIC 224 may convert the preprocessed 5G Sub6 RF signal into a baseband signal to be processed by a corresponding communication processor among the first communication processor 212 and the second communication processor 214 .

The third RFIC 226 transmits the baseband signal generated by the second communication processor 214 to the RF of the 5G Above6 band (eg, about 6 GHz to about 60 GHz) to be used in the second network 294 (eg, a 5G network). signal (hereinafter referred to as 5G Above6 RF signal). Upon reception, the 5G Above6 RF signal may be obtained from the second network 294 (eg, 5G network) via an antenna (eg, antenna 248) and preprocessed through a third RFFE 236. The third RFIC 226 may convert the preprocessed 5G Above6 RF signal into a baseband signal to be processed by the second communication processor 214 . According to one embodiment, the third RFFE 236 may be formed as part of the third RFIC 226 .

The electronic device 101, according to one embodiment, may include a fourth RFIC 228 separately from or at least as part of the third RFIC 226. In this case, the fourth RFIC 228 converts the baseband signal generated by the second communication processor 214 into an RF signal (hereinafter referred to as an IF signal) of an intermediate frequency band (eg, about 9 GHz to about 11 GHz). After conversion, the IF signal may be transmitted to the third RFIC 226. The third RFIC 226 may convert the IF signal into a 5G Above6 RF signal. Upon reception, a 5G Above6 RF signal may be received from a second network 294 (eg, 5G network) via an antenna (eg, antenna 248) and converted to an IF signal by a third RFIC 226 . The fourth RFIC 228 may convert the IF signal into a baseband signal so that the second communication processor 214 can process it.

According to an embodiment, the first RFIC 222 and the second RFIC 224 may be implemented as a single chip or at least part of a single package. According to one embodiment, the first RFFE 232 and the second RFFE 234 may be implemented as a single chip or at least part of a single package. According to one embodiment, at least one antenna module of the first antenna module 242 or the second antenna module 244 may be omitted or combined with another antenna module to process RF signals of a plurality of corresponding bands.

According to one embodiment, third RFIC 226 and antenna 248 may be disposed on the same substrate to form third antenna module 246 . For example, the wireless communication module 192 or processor 120 may be disposed on a first substrate (eg, main PCB). In this case, the third RFIC 226 is provided on a part (eg, lower surface) of the second substrate (eg, sub PCB) separate from the first substrate, and the antenna 248 is placed on another part (eg, upper surface). is disposed, the third antenna module 246 may be formed. By arranging the third RFIC 226 and the antenna 248 on the same substrate, it is possible to reduce the length of the transmission line therebetween. This, for example, can reduce loss (eg, attenuation) of a signal of a high frequency band (eg, about 6 GHz to about 60 GHz) used in 5G network communication by a transmission line. As a result, the electronic device 101 can improve the quality or speed of communication with the second network 294 (eg, 5G network).

According to one embodiment, the antenna 248 may be formed as an antenna array including a plurality of antenna elements that may be used for beamforming. In this case, the third RFIC 226 may include, for example, a plurality of phase shifters 238 corresponding to a plurality of antenna elements as a part of the third RFFE 236. During transmission, each of the plurality of phase converters 238 may convert the phase of a 5G Above6 RF signal to be transmitted to the outside of the electronic device 101 (eg, a base station of a 5G network) through a corresponding antenna element. . During reception, each of the plurality of phase converters 238 may convert the phase of the 5G Above6 RF signal received from the outside through the corresponding antenna element into the same or substantially the same phase. This enables transmission or reception through beamforming between the electronic device 101 and the outside.

The second network 294 (eg, 5G network) may operate independently of the first network 292 (eg, a legacy network) (eg, Stand-Alone (SA)) or may be connected to and operated (eg, a legacy network). Non-Stand Alone (NSA)). For example, a 5G network may include only an access network (eg, a 5G radio access network (RAN) or a next generation RAN (NG RAN)) and no core network (eg, a next generation core (NGC)). In this case, after accessing the access network of the 5G network, the electronic device 101 may access an external network (eg, the Internet) under the control of a core network (eg, evolved packed core (EPC)) of the legacy network. Protocol information for communication with the legacy network (eg LTE protocol information) or protocol information for communication with the 5G network (eg New Radio (NR) protocol information) is stored in the memory 230, and other parts (eg processor 120 , the first communications processor 212 , or the second communications processor 214 .

3 is a block diagram of an electronic device to which an ET modulator is applied to a transmission circuit according to various embodiments of the present disclosure.

Referring to FIG. 3 , an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments includes a first transmission circuit 310, a second transmission circuit 320, a control circuit 330, or a switching circuit. A regulator 340 may be included.

The first transmission circuit 310 (eg, the first RFFE 232 of FIG. 2 ) may include a first amplifier 311 and a first linear regulator 313 . The first transmission circuit 310 may encode an RF signal (eg, a first transmission signal) related to communication (eg, wireless communication) and then modulate and output the modulated signal to suit a transmission type. The RF signal input from the wireless communication module (eg, the wireless communication module 192 of FIG. 1 or the first communication processor 212 of FIG. 2 ) to the first transmission circuit 310 is weak with low gain and low output power. It can have the level of one signal. Since the RF signal has severe signal attenuation or noise, the first transmission circuit 310 amplifies and transmits the power of the RF signal when transmitting the RF signal to the base station in order to increase transmission efficiency according to signal attenuation or noise. can

According to various embodiments, the first transmission circuit 310 uses the first amplifier 311 to convert the first transmission signal (eg, an RF input signal) into a signal having a high gain and a high output (eg, an RF output signal). can be amplified by The first amplifier 311 may be configured to amplify the first transmission signal. The first amplifier 311 uses power (eg, a fixed power supply voltage) supplied from the power management module (eg, the power management module 188 of FIG. 1 ) of the electronic device 101 to generate a weak signal (eg, The first transmission signal may be amplified by loading energy into the AC signal to generate a larger AC waveform. When the first amplifier 311 amplifies the first transmission signal using a fixed power supply, unnecessary power dissipation may occur. Since the first amplifier 311 consumes a large amount of power in the electronic device 101, it may have high efficiency and high linearity characteristics. In order for the first amplifier 311 to have high efficiency and high linearity, an envelope tracking (ET) technique may be applied to the first amplifier 311 .

According to various embodiments, the ET technology converts an envelope signal of an RF input signal applied to an amplifier (eg, the first amplifier 311 or the second amplifier 321) to the first amplifier 311 or the second amplifier 321. 2 This is a technology to reduce power consumption by applying the power supply voltage of the amplifier 321. ET technology adjusts the envelope signal so that the voltage (Vcc) applied to the amplifier tracks the RF envelope, minimizing power dissipation and ensuring that the amplifier is always operating at high efficiency. The ET modulator to which the ET technology is applied may include a linear regulator, a comparator, or a switching regulator. The first transmission circuit 310 includes a linear regulator (eg, the first linear regulator 313) or a comparator ( Example: A first comparator (not shown)) may be included.

According to various embodiments, although the comparator is not separately shown in FIG. 3 , since the first linear regulator 313 controls the input of the switching regulator (eg, the switching regulator 340 of FIG. 3 ), the comparator may have a first It can be interpreted as being included in the linear regulator 313. The first comparator compares the input voltage with the reference voltage to detect whether the input exceeds the reference voltage, and outputs the result as a digital value (eg, 0 or 1). For example, the first comparator may compare the output of the switching regulator 340 and the output of the first linear regulator 313 to output a digital value of 0 or 1.

According to various embodiments, the first linear regulator 313 may be configured to supply a first voltage to the first amplifier 311 based on an envelope corresponding to a first designated frequency band of the first transmission signal. there is. The first linear regulator 313 controls (or adjusts) the voltage and is designed so that the relationship between input and output operates linearly. The first linear regulator 313 has a high speed characteristic and can amplify a high frequency signal among envelope signals of an input signal applied to the first amplifier 311 . For example, the first linear regulator 313 adjusts the first voltage so that the first voltage applied to the first amplifier 311 tracks (or follows) an envelope corresponding to the first designated frequency band. You can control (or adjust). The first linear regulator 313 may reduce power used when the first amplifier 311 amplifies the first transmission signal by adjusting the first voltage to correspond to the envelope.

According to various embodiments, the first linear regulator 313 may regulate and compensate for noise generated by the switching regulator 340 . Even if the low-frequency signal from the switching regulator 340 is distorted by a trace (eg, a signal line through which the signal from the switching regulator 340 is transmitted), the first linear regulator 313 regulates to generate an envelope signal. Therefore, inductance due to a distance between the switching regulator 340 and the first amplifier 311 may not be considered at all.

According to various embodiments, the first designated frequency band may be a frequency band set in the first transmission circuit 310 . For example, the first designated frequency band is a band of about 700 MHz to about 3 GHz used for a first network (eg, the first network 292 of FIG. 2 or a legacy network), and a second network (eg, the first network 292 of FIG. 2 ). Sub6 band (e.g., less than about 6 GHz), intermediate frequency band (e.g., about 9 GHz to about 11 GHz), or 5G Above6 band (e.g., about 6 GHz to about 60 GHz) used for the second network (294) or 5G network). It can be at least one.

The second transmission circuit 320 (eg, the second RFFE 234 of FIG. 2 ) may include a second amplifier 321 and a second linear regulator 323 . The second transmission circuit 320 may encode an RF signal (eg, a second transmission signal) related to communication (eg, wireless communication) and then modulate and output the modulated signal to suit a transmission type. The RF signal input from the wireless communication module 192 (eg, the first communication processor 212 and the second communication processor 214 in FIG. 2) to the second transmission circuit 320 has a low gain and low output power. It may have a weak signal level. The second transmission circuit 320 may amplify the second transmission signal (eg, RF input signal) into a signal having a high gain and a high output (eg, RF output signal) using the second amplifier 321 . The second amplifier 321 may be configured to amplify the second transmission signal. The second amplifier 321 applies power (eg, a fixed power supply voltage) supplied from the power management module (eg, the power management module 188 of FIG. 1 ) of the electronic device 101 to a weak signal (eg, the power management module 188 of FIG. 1 ). The second transmission signal may be amplified by loading energy into the AC signal to generate a larger AC waveform.

According to various embodiments, the second transmission circuit 320 may include a linear regulator (eg, the second linear regulator 323) or a comparator (eg, a second comparator (not shown)) included in the ET modulator. can Although the comparator is not separately shown in FIG. 3 , since the second linear regulator 323 controls the input of the switching regulator 340 , the comparator may be interpreted as being included in the second linear regulator 323 . The second comparator compares the input voltage with the reference voltage, detects whether the input exceeds the reference voltage, and outputs the result as a digital value (eg, 0 or 1).

According to various embodiments, the second linear regulator 323 may be configured to supply a second voltage to the second amplifier 321 based on an envelope corresponding to a second designated frequency band of the second transmission signal. there is. The second linear regulator 323 may amplify a high-frequency signal among envelope signals of an input signal applied to the second amplifier 321 . For example, the second linear regulator 323 controls (or adjusts) the second voltage applied to the second amplifier 321 so that the second voltage tracks an envelope corresponding to the second designated frequency band. can do. The second linear regulator 323 adjusts the second voltage to correspond to the envelope, thereby reducing power used by the second amplifier 321 to amplify the second transmission signal. Also, the second linear regulator 323 may regulate and compensate for noise generated by the switching regulator 340 .

According to various embodiments, the second designated frequency band may be a frequency band set in the second transmission circuit 320 . The second designated frequency band may be the same as or different from the first designated frequency band. For example, the second designated frequency band is about 700 MHz to about 3 GHz band used for the first network 292 (or legacy network), Sub6 band used for the second network 294 (or 5G network) (eg : about 6 GHz or less), an intermediate frequency band (eg, about 9 GHz to about 11 GHz), or a 5G Above6 band (eg, about 6 GHz to about 60 GHz).

The switching regulator 340 may be electrically connected to the first amplifier 311 and the second amplifier 321 . The switching regulator 340 regulates (or controls) a voltage, and can supply a desired voltage while turning on or off a switch element (eg, MOSFET). The switching regulator 340 may amplify a low-frequency signal among envelope signals of input signals applied to the first amplifier 311 and the second amplifier 321 . The switching regulator 340 may turn on or off the switch element according to the control of the control circuit 330 .

When the control circuit 330 transmits the first transmission signal to an external electronic device (eg, the electronic device 102 or the electronic device 104 of FIG. 1) through the first transmission circuit 310, the first transmission signal It may be configured to supply a third voltage to the first amplifier 311 using the switching regulator 340 based on an envelope corresponding to a third frequency band lower than the first designated frequency band of the transmission signal. Alternatively, when the control circuit 330 transmits the second transmission signal to the external electronic device through the second transmission circuit 320, the third frequency lower than the second designated frequency band of the second transmission signal It may be configured to supply the fourth voltage to the second amplifier 321 using the switching regulator 340 based on the envelope corresponding to the band. According to various embodiments, the control circuit 330 may be, for example, a communication processor (eg, the processor 120 of FIG. 2 , the first communication processor 212, or the second communication processor 214), an RFIC (eg, the first RFIC 222 or the second RFIC 224 of FIG. 2), a wireless communication module (eg, the wireless communication module 192 of FIG. 1 or 2), or an ET DAC (envelope tracking digital analog convertor) may refer to a comprehensive concept including a circuit for controlling wireless communication of various embodiments.

According to various embodiments, the control circuit 330 may control the third voltage so that the output voltage of the switching regulator 340 tracks an envelope corresponding to the third frequency band. The control circuit 330 may control the fourth voltage so that the output voltage of the switching regulator 340 tracks an envelope corresponding to the fourth frequency band.

In FIG. 3, transmission circuits divided into "first" and "second" (eg, the first transmission circuit 310 and the second transmission circuit 320), amplifiers (eg, the first amplifier 311, the second transmission circuit 310) 2 The amplifier 321 and the linear regulators (eg, the first linear regulator 313 and the second linear regulator 323) perform the same function, and for easy identification, "first" and "second" However, it is not intended to limit the content of the invention In another embodiment, the first transmission circuit 310 and the second transmission circuit 320 may be configured to process signals of different frequency bands.

4A to 4C are diagrams illustrating the configuration of an ET modulator according to various embodiments.

Referring to FIG. 4A, an ET modulator (envelope tracking modulator, 400) converts an envelope signal of an input signal applied to amplifiers (eg, the first amplifier 311 and the second amplifier 321 of FIG. 3). Current consumption may be reduced by applying the power supply voltage to the first amplifier 311 or the second amplifier 321 . The ET modulator 400 may include a hybrid structure composed of two different types of regulators in order to have high efficiency and high linearity characteristics. For example, the ET modulator 400 may include a linear regulator 410 or a switching regulator 430 . The ET modulator 400 may further include a comparator 420 that controls an input of the switching regulator 430 by comparing the output of the linear regulator 410 . The ET modulator 400 of FIG. 4A may be referred to as a 'second type ET modulator'.

The linear regulator 410 (eg, the first linear regulator 311 and the second linear regulator 321 of FIG. 3) controls (or adjusts) the voltage, and outputs a constant voltage by comparing the output voltage with the reference voltage. can do. The linear regulator 410 is designed so that the relationship between input and output operates linearly. The linear regulator 410 may amplify a high frequency signal among envelope signals of an input signal applied to the first amplifier 311 or the second amplifier 321 .

According to various embodiments, the linear regulator 410 may compensate for noise generated by the switching regulator 430 by regulating it. For example, even if a low-frequency signal from the switching regulator 430 is distorted by a trace (eg, a signal line through which a signal from the switching regulator 340 is transmitted), the linear regulator 410 regulates the envelope signal can create Since the linear regulator 410 has high speed characteristics, it can track an envelope signal with a wide bandwidth, but may have low efficiency (eg, output a small amount of current). Since the linear regulator 410 is fast and the switching regulator 430 is slow, the linear regulator 410 operates as a master controlling the switching regulator 430 and the switching regulator 430 operates as a slave. can

The switching regulator 430 (eg, the switching regulator 340 of FIG. 3) regulates (or controls) a voltage, and is designed to supply a desired voltage while turning on or off a switch element (eg, MOSFET). The switching regulator 430 may amplify a low-frequency signal among envelope signals of an input signal applied to an amplifier (eg, the first amplifier 311 or the second amplifier 321). For example, the switching regulator 430 supplies power from the input to the output by turning on a switch element until the output voltage reaches a desired voltage, and consumes input power by turning off the switch element when the output voltage reaches a desired voltage. may not For example, when the switching regulator 430 turns on the switch element, power is supplied to the output terminal (out) through the inductor 440, and when the switch element is turned off, the electric power charged in the inductor 440 is supplied to the output terminal. can be supplied with When the switch element is turned on, output power may increase, and when the switch element is turned off, output power may decrease. According to this principle, the switching regulator 430 can control the output power. The switching regulator 430 can output a large amount of current (or voltage) (eg, high efficiency), but is slow, so it may be difficult to track a wide bandwidth envelope signal.

Referring to FIG. 4B , the ET modulator 450 may be designed to include only the switching regulator 430 . When such an ET modulator 450 is included in an electronic device (eg, the electronic device 101 of FIG. 1), the linear regulator 410 and the comparator 420 are a transmission circuit (eg, the first transmission circuit of FIG. 3 ( 310), and may be included in the second transmission circuit 320). The ET modulator 450 of FIG. 4B may be referred to as a 'first type ET modulator'.

Referring to FIG. 4C , the ET modulator 470 may include a linear regulator 410, a comparator 420, a switching regulator 430, or a multiplexer 480. A linear regulator 410 (eg, the first linear regulator 311 and the second linear regulator 321 of FIG. 3 ), a comparator 420, or a switching regulator 430 (eg, the switching regulator 340 of FIG. 3 ) ) Since it has been described in detail with reference to FIG. 3 or 4A, detailed description may be omitted. The ET modulator 470 of FIG. 4C may be referred to as a 'third type ET modulator'.

The multiplexer 480 may be a combination circuit that selects one of several input lines and connects them to a single output line. It is simply called a 'MUX', but it is also called a data selector because it outputs multiple input data into a single output. When the ET modulator 470 is connected to at least two transmission circuits, one transmission circuit includes a linear regulator and the other transmission circuit does not include a linear regulator, the multiplexer 480 is a switching regulator 430 ) to control the input signal. For example, when a linear regulator is included in the transmission circuit (eg, the first transmission circuit 310 and the second transmission circuit 320 of FIG. 3 ), the multiplexer 480 is the linear regulator included in the transmission circuit. The output signal may be output to the switching regulator 430 as an input signal. When the linear regulator is not included in the transmission circuit, the multiplexer 480 may output an output signal of the linear regulator 410 included in the ET modulator 470 to the switching regulator 430 as an input signal.

5 is a diagram illustrating a current graph of an ET modulator according to various embodiments.

Referring to FIG. 5, the ET modulator (eg, the ET modulator 400 of FIG. 4A, the ET modulator 450 of FIG. 4B, and the ET modulator 470 of FIG. 4C) is a switching regulator (eg, the switching regulator of FIG. 3 ( 340), the switching regulator 430 of FIGS. 4A to 4C), or a linear regulator (eg, the linear regulators 313 and 323 of FIG. 3 or the linear regulator 410 of FIG. 4A or 4C) to control the envelope Signal 510 may be output. The envelope signal 510 may be generated using the low frequency signal 520 generated by the switching regulator and the high frequency signal 530 generated by the linear regulator. The ET modulator may reduce power consumption of the electronic device 101 by controlling the envelope signal 510 applied to the amplifiers (eg, the first amplifier 311 and the second amplifier 321 of FIG. 3 ).

6A is a diagram illustrating a configuration of an electronic device to which an ET modulator according to a comparative example is applied.

Referring to FIG. 6A, an electronic device (eg, the electronic device 101 of FIG. 1) according to a comparative example includes a communication processor (eg, the first communication processor 212), an RFIC (eg, the RFIC 222 of FIG. 2) ), an ET modulator 400 and a transmission circuit 600.

The communication processor 212 may support establishment of a communication channel of a band to be used for wireless communication with a network (eg, the second network 199 of FIG. 1 ) and network communication through the established communication channel. According to various embodiments, the network may be a legacy network including a second generation (2G), 3G, 4G, or long term evolution (LTE) network. The communication processor 212 may further include an envelope tracking digital analog converter (ET DAC) 660.

The ET DAC 660 may include an envelope detector and a digital signal processor (DSP). The envelope detector may convert an in-phase (I)/quadrature-phase (Q) signal into an envelope signal. The I/Q signal may mean a frequency-modulated signal, and may be input to the linear regulator 410 as an in-phase “I” signal with a phase of 0 degrees and a quadrature “Q” signal with a phase of 90 degrees. there is. The digital signal processing unit may adjust shaping or delay of the envelope signal output from the envelope detector. The amplifier generates third-order intermodulation distortion (IMD3) during signal amplification, and the third-order intermodulation distortion may have a sweet spot point. Shaping tracks the sweet spot. The digital signal processing unit may control the envelope signal so that the envelope signal tracks the transmission signal amplified by the transmission circuit 600. According to various embodiments, , although the figure shows that the ET DAC 660 is included in the communication processor 212, the ET DAC 660 may also be included in the RFIC 222.

The RFIC 222, upon transmission, converts the baseband signal generated by the communication processor 212 into a radio frequency signal used in the network (eg, a frequency band of about 600 MHz to about 6 GHz). can

The ET modulator 400 may include a linear regulator 410, a comparator 420, or a switching regulator 430. A linear regulator 410 (eg, the first linear regulator 311 and the second linear regulator 321 of FIG. 3 ), a comparator 420, or a switching regulator 430 (eg, the switching regulator 340 of FIG. 3 ) ) Since it has been described in detail with reference to FIG. 3 or 4A, detailed description may be omitted.

The transmission circuit 600 includes a power amplifier (PA) 610, a low noise amplifier (LNA) 620, a filter and duplexer 630, a plurality of mobile industry processor interface (MIPI) controllers 640, and an antenna switch. (ASW (antenna switch), 650). The power amplifier 610 (eg, the first amplifier 311 or the second amplifier 321 of FIG. 3) may amplify the transmission signal. The low noise amplifier 620 may amplify the received signal. The filter and duplexer 630 is connected to an antenna (eg, the first antenna module 242 of FIG. 2 ) of the electronic device 101 to separate transmission and reception frequencies of the electronic device 101 . The filter and duplexer 630 may include a plurality of filters or duplexers for each frequency band. A plurality of MIPI controllers 640 may control a transmission signal or a reception signal. The antenna switch 650 may select a frequency band of a signal to be transmitted/received. The antenna switch 650 may control the switch according to a frequency band of a signal to be transmitted/received.

Since the envelope signal output from the ET DAC 660 is input to the ET modulator 400, distortion of the envelope signal input to the ET modulator 400 may become severe. Signal distortion may increase as the distance 670 (eg, the distance between the ET modulator 400 and the transmission circuit 600) increases and the bandwidth of the signal widens. Accordingly, the ET modulator 400 according to the comparative example may be mounted at a distance 670 closest to the transmission circuit 600 . When the ET technology is applied to a signal with a wide bandwidth of 100 MHz or more, such as 5G, fatal distortion may occur due to the distance 670 between the ET modulator 400 and the transmission circuit 600.

6B is a block diagram of an electronic device to which an ET modulator is applied to a transmission circuit according to various embodiments.

Referring to FIG. 6B, an electronic device (eg, electronic device 101 of FIG. 1) according to the present invention includes a communication processor (eg, first communication processor 212), and an RFIC (eg, RFIC 222 of FIG. 2). , an ET modulator 450 and a transmission circuit 310 (eg, the first transmission circuit 310 of FIG. 3).

The communication processor 212 may support establishment of a communication channel of a band to be used for wireless communication with a network (eg, the second network 294 of FIG. 2 ) and network communication through the established communication channel. According to various embodiments, the network may include a second generation (2G), 3G, 4G, long term evolution (LTE) network, or a 5G network defined by a third generation partnership project (3GPP).

When transmitting, the RFIC 222 may convert a baseband signal generated by the communication processor into a radio frequency signal (eg, about 6 GHz or less) used in the network.

The ET modulator 430 may include a switching regulator 430 . The ET modulator 450 may be the second type ET modulator shown in FIG. 4B. Since the switching regulator 430 has been described in detail with reference to FIG. 3 or 4A, a detailed description thereof may be omitted.

The transmitter circuit 310 includes an amplifier 311 (eg, the first amplifier 311 or the second amplifier 321 of FIG. 3), a linear regulator 313 (eg, the first linear regulator 313 or A second linear regulator 323), a comparator 420 (eg the comparator 420 of FIG. 4A), a low noise amplifier 620, a filter and duplexer 630, a plurality of MIPI controllers 640, an antenna switch (ASW, 650) or an ET DAC 660. The ET DAC 660 converts the I/Q signal into an envelope signal and inputs it to the linear regulator 410 as an in-phase “I” signal with a phase of 0 degrees and a quadrature “Q” signal with a phase of 90 degrees. can Since the configuration included in the transmitting circuit 310 has been described in detail with reference to FIGS. 3, 4A, and 6A, a detailed description thereof may be omitted.

According to various embodiments, since the envelope signal output from the ET DAC 660 included in the transmitter circuit 310 is directly input to the linear regulator 313 included in the transmitter circuit 310, the envelope signal Distortion may not occur. Signal distortion may increase as the distance 670 (eg, the distance between the ET modulator 440 and the transmission circuit 310) increases and the bandwidth of the signal widens. However, in the present invention, since the ET DAC 660 and the linear regulator 313 are included inside the transmitter circuit 310, the final envelope signal in the linear regulator 313 for a signal with a wide bandwidth of about 100 MHz or more, such as 5G Since it outputs , signal distortion according to the distance 670 may not occur.

According to various embodiments, the amplifier 311, the low noise amplifier 620, the filter and duplexer 630, the plurality of MIPI controllers 640, and the antenna switch (ASW, 650) included in the transmission circuit 310 are complementary A metal-oxide-semiconductor (CMOS)/silicon on insulator (SOI) wafer process may be used. In addition, the ET modulator including the linear regulator 313, the comparator 420 and the switching regulator 430 may also use a CMOS/SOI wafer process. Therefore, when the linear regulator 313 and the comparator 420, which are part of the ET modulator, are included in the transmitter circuit 310, there is no change in chip size, and chip manufacturing can be facilitated.

7 is a diagram illustrating a voltage measurement graph simulating an ET modulator according to various embodiments.

Referring to FIG. 7 , the voltage measurement graph may be a simulation of the output voltage of the ET modulator (eg, the ET modulator 400 of FIG. 4A , the ET modulator 450 of FIG. 4B , and the ET modulator 470 of FIG. 4C ). there is. When the ET modulator supports a 100 MHz band signal and the circuit is configured such that the distance between the ET modulator and the transmission circuit is about 5 cm, the first signal 710 is an envelope input signal, and the second signal 720 Is a conventional envelope output signal, and the third signal 730 may be the envelope output signal of the present invention. Conventionally, after an envelope signal is generated in a linear regulator (eg, the linear regulator 410 in FIG. 4A or 4C), the signal output to the switching regulator (eg, the switching regulator 430 in FIGS. 4A or 4C) is a long path. (Example: 5cm distance) may cause distortion due to inductance. The second signal 720 cannot track the first signal 710 due to distortion caused by inductance. In the present invention, a linear regulator (eg, the first linear regulator 313 of FIG. 3 ) and the second linear regulator 323 are included in the transmission circuit (eg, the first transmission circuit 310 or the second transmission circuit 320 of FIG. 3 ). )), the final envelope signal can be output from the linear regulator. Although the third signal 730 is 5 cm away from a wide band (eg, about 100 MHz band) signal, it can track the first signal 710 because there is no distortion due to inductance.

8 to 10 are diagrams illustrating the configuration of an electronic device including a transmission circuit to which an ET modulator according to various embodiments is applied.

According to an embodiment, an antenna capable of transmitting may exist in an electronic device (eg, the electronic device 101 of FIG. 1 ). For example, a 4G electronic device may generally transmit an RF signal to a base station using an antenna at the bottom of the electronic device. However, in order to increase uplink throughput (uplink T-put (throughput)), 4G electronic devices use uplink carrier aggregation (ULCA) and 5G electronic devices use ENDC (evolved-UTRA-NR) (universal terrestrial radio access-new radio ) dual connectivity) technology is being applied. In this way, in order to simultaneously transmit two or more independent RF signals, the antenna at the top of the electronic device as well as the antenna at the bottom of the electronic device must be used. According to an embodiment, several RF signals can be transmitted using only the lower antenna, but it is difficult to satisfy the 3GPP spurious spec due to parasitic components such as IMD (intermodulation distortion) / harmonics, and sensitivity degradation may occur. can Therefore, in the electronic device, the ET modulator and the transmission circuit may be arranged in various ways at the top and bottom of the electronic device as shown in FIGS. 8 to 10 for upper and lower transmission (Tx).

According to various embodiments, the electronic device includes only an ET modulator (eg, the first type ET modulator 450 of FIG. 4B or 6B) and a switching regulator (eg, the switching regulator 430 of FIG. 4B or 6B). and a linear regulator (eg, linear regulator 313 in FIG. 6B) and a comparator (eg, FIG. It can be configured by including the comparator 420 of 6b. Through this, it is possible to compensate not only noise generated by the switching regulator but also distortion generated by trace inductance in the electronic device. Through this, according to various embodiments, without using a plurality of complex ET modulators (eg, the second type ET modulator 400 of FIG. 4A) at the top and bottom of the electronic device, it is necessary to support ULCA / ENDC. Even in the scenario, it can be implemented with the minimum ET modulator without limiting the distance between the ET modulator and the transmitter circuit, and by using a simple ET modulator (eg, the first type ET modulator 430), size, mounting area, unit cost, or circuit layout (Or it may have an effect on the degree of freedom of design.

Hereinafter, in the description of FIGS. 8 to 9, a switching regulator (eg, the switching regulator of FIG. 4B or 6B) like the ET modulator (eg, the ET modulator 450 of FIG. 4B or 6B) according to various embodiments. An ET modulator including only the regulator 430 is referred to as a “first type ET modulator”, and a switching regulator (eg, FIG. 4A Alternatively, an ET modulator comprising a switching regulator 430 of FIG. 6A), a linear regulator (eg, linear regulator 410 of FIG. 4A or 6A), and a comparator (eg, comparator 420 of FIG. 4A or 6A) It is referred to as a “second type ET modulator”. Similarly, a linear regulator (eg, the linear regulator 313 of FIG. 6B) and a comparator (eg, the comparator of FIG. 6B (eg, the transmit circuit 310 of FIG. 420)) is referred to as a "first type transmitter circuit", and a transmit circuit having an existing structure (eg, the transmitter circuit 600 of FIG. 6A) is referred to as a "second type transmitter circuit".

8 is a diagram showing the configuration of an electronic device according to the first embodiment. Referring to FIG. 8, an electronic device (eg, the electronic device 101 of FIG. 1) according to the first embodiment is a first type Transmitter circuit 1 (810), first type Transmitter circuit 2 (820), first type ET modulator 1 (830), first type Transmitter circuit 3 (840), first type Transmitter circuit 4 (850), first type ET modulator 2 (860), first type transmit circuit 5 (870), first antenna module (eg, first antenna module 242 of FIG. 2), second antenna module (eg, second antenna module of FIG. 2) (244)), a third antenna module (eg, the third antenna module 246 of FIG. 2), a fourth antenna module (eg, the fourth antenna module 248 of FIG. 2), and a fifth antenna module 880 can include

The first type transmission circuit 1 (810) to the first type transmission circuit 5 (870) may be the first transmission circuit 310 or the second transmission circuit 320 shown in FIG. 3 or FIG. 6B. The first type transmission circuit 1 810 to the first type transmission circuit 5 870 may include linear regulators (eg, the first linear regulator 313 and the second linear regulator 323) or comparators. Each of the first type transmission circuit 1 (810) to the first type transmission circuit 5 (870) may amplify the transmission signal in different frequency bands or in the same frequency band. For example, the first type transmission circuit 1 (810) to the first type transmission circuit 5 (870) may be configured to process signals of different frequency bands.

The first type ET modulator 1 830 or the first type ET modulator 2 860 may include a switching regulator (eg, the switching regulator 340 of FIG. 3 or the switching regulator 430 of FIG. 4B ). The first type ET modulator 1 830 or the first type ET modulator 2 860 may refer to the ET modulator 450 of FIG. 4B.

The first antenna module 242 to the fifth antenna module 880 transmit the first to fifth transmission signals amplified by the first type transmission circuit 1 810 to the first type transmission circuit 5 870 to the network. can be transmitted to the base station through

According to various embodiments, the first type transmission circuit 1 810 and the first type transmission circuit 2 820 are disposed on top of the electronic device 101, and the first type ET modulator 2 860 and the first The type transmission circuit 5 (870) may be disposed at the bottom of the electronic device 101. In the present invention, since the linear regulator is included in the first type transmission circuit 1 (810) to the first type transmission circuit 5 (870), even if the first type ET modulator 2 (860) is disposed at the bottom of the electronic device 101 , the first type ET modulator 2 (860) may be electrically connected to the first type transmission circuit 1 (810) and the first type transmission circuit 2 (820). The first-type ET modulator 2 (860) may provide an envelope signal without difficulty even if the first-type transmit circuit 1 (810) and the first-type transmit circuit 2 (820) are far apart. For example, signal distortion may not occur because the final envelope signal is output from the linear regulator included in the first-type transmission circuit 1810 and the first-type transmission circuit 2820.

Conventionally, when the frequency band is widened or the distance between the ET modulator (eg, the second type ET modulator) and the transmission circuit is long, one ET modulator per at least two transmission circuits is required due to distortion of the envelope output signal of the ET modulator. Each may be required. In the electronic device 101 according to the first embodiment, a linear regulator is included in the first type transmission circuit 1 (810) to the first type transmission circuit 5 (870), so that a frequency band is widened or an ET modulator (e.g., a first type transmission circuit) Even if the distance between the first-type ET modulator) and the transmission circuit (eg, the first-type transmission circuit) is increased, there is no distortion of the envelope output signal of the ET modulator, so that a circuit can be configured with a small number of ET modulators.

9 is a diagram showing the configuration of an electronic device according to a second embodiment.

Referring to FIG. 9 , an electronic device (eg, the electronic device 101 of FIG. 1 ) according to the second embodiment includes a first type transmission circuit 1 810, a first type transmission circuit 2 820, and a second type transmission circuit 810. ET modulator 910, second type transmit circuit 1 920, second type transmit circuit 2 930, first type ET modulator 830, first type transmit circuit 3 940, first antenna module ( Example: the first antenna module 242 of FIG. 2), the second antenna module (eg the second antenna module 244 of FIG. 2), the third antenna module (eg the third antenna module 246 of FIG. 2) ), a fourth antenna module (eg, the fourth antenna module 248 of FIG. 2), and a fifth antenna module 880.

The first type transmission circuit 1 (810), the first type transmission circuit 2 (820) or the first type transmission circuit 3 (940) is the first transmission circuit 310 or the second transmission circuit shown in FIG. 3 or FIG. 6B. (320). The first type transmission circuit 1 (810), the first type transmission circuit 2 (820) or the first type transmission circuit 3 (940) is a linear regulator (eg, the first linear regulator 313, the second linear regulator 323) ) or a comparator. Each of the first-type transmission circuit 1 (810), the first-type transmission circuit 2 (820), or the first-type transmission circuit 3 (940) may amplify a transmission signal in a different frequency band or the same frequency band. For example, the first type transmission circuit 1 (810) to the first type transmission circuit 3 (940) may be configured to process signals of different frequency bands.

The second type transmission circuit 1 (920) or the second type transmission circuit 2 (930) may be the transmission circuit 600 shown in FIG. 6A. For example, the second type transmission circuit 1 (920) or the second type transmission circuit 2 (930) does not include a linear regulator or comparator, and includes a power amplifier (PA, 610), a low noise amplifier (LNA, 620), and a filter. and a duplexer 630, a plurality of MIPI controllers 640, and an antenna switch (ASW, 650).

The second type ET modulator 910 includes a linear regulator (eg, linear regulator 410 in FIG. 4A ), a comparator (eg, comparator 420 in FIG. 4A ), and a switching regulator (eg, switching regulator 430 in FIG. 4A ). The second type ET modulator 910 may be the ET modulator 400 shown in FIG. 4A.

The first type ET modulator 830 may include a switching regulator (eg, the switching regulator 340 of FIG. 3 or the switching regulator 430 of FIG. 4B ). The first type ET modulator 830 may refer to the ET modulator 450 of FIG. 4B.

The first antenna module 242 to the fifth antenna module 880 include a first type transmission circuit 1 810 to a first type transmission circuit 3 940, a second type transmission circuit 1 920 and a second type transmission circuit. The first to fifth transmission signals amplified in circuit 2 930 may be transmitted to the base station through the network.

According to various embodiments, the first type transmission circuit 1 (810) and the first type transmission circuit 2 (820) are disposed on top of the electronic device 101, and the first type ET modulator 830 is the electronic device ( 101) may be placed at the bottom. In the present invention, since the linear regulators are included in the first-type transmission circuit 1 (810) and the first-type transmission circuit 2 (820), even if the first-type ET modulator 830 is disposed at the bottom of the electronic device 101, The first type ET modulator 830 may be electrically connected to the first type transmission circuit 1 810 and the first type transmission circuit 2 820 . The first-type ET modulator 830 may provide an envelope signal without difficulty even if the first-type transmission circuit 1 810 and the first-type transmission circuit 2 820 are far apart. For example, signal distortion may not occur because the final envelope signal is output from the linear regulator included in the first-type transmission circuit 1810 and the first-type transmission circuit 2820.

According to various embodiments, the second type ET modulator 910 may be connected to the second type transmission circuit 1 920 and the second type transmission circuit 2 930 . Since the envelope signal output from the second-type ET modulator 910 is directly transmitted to the second-type transmission circuit 1 920 and the second-type transmission circuit 2 930, signal distortion may not occur. In the electronic device 101 according to the second embodiment, the frequency band is widened or the distance between the first type ET modulator 830 and the first type transmission circuit 1 (810) and the first type transmission circuit 2 (820) is long. Even if there is no distortion of the envelope output signal of the first type ET modulator 830, it is possible to construct a circuit with a small number of ET modulators.

According to various embodiments, even in a scenario in which ULCA/ENDC must be supported, it can be implemented with a minimum ET modulator without limiting the distance between the ET modulator and the transmission circuit, and using a simple ET modulator (eg, a first type ET modulator) , size, unit price, mounting area, or degree of freedom in circuit arrangement (or design) can bring about gains.

10 is a diagram showing the configuration of an electronic device according to a third embodiment.

Referring to FIG. 10 , an electronic device (eg, the electronic device 101 of FIG. 1 ) according to the third embodiment includes a first type transmission circuit 810, a second type transmission circuit 1 920, and a second type ET. Modulator 910, second type transmit circuit 2 (1010), second type transmit circuit 3 (1020), third type ET modulator 1030, second type transmit circuit 4 (1040), first antenna module (eg : The first antenna module 242 of FIG. 2), the second antenna module (eg, the second antenna module 244 of FIG. 2), the third antenna module (eg, the third antenna module 246 of FIG. 2) , a fourth antenna module (eg, the fourth antenna module 248 of FIG. 2), and a fifth antenna module 880.

The first type transmission circuit 810 may be the first transmission circuit 310 or the second transmission circuit 320 shown in FIG. 3 or 6B. The first type transmitting circuit 810 may include a linear regulator (eg, the first linear regulator 313 and the second linear regulator 323) or a comparator.

The second-type transmit circuit 1 (920), the second-type transmit circuit 2 (1010), the second-type transmit circuit 3 (1020), or the second-type transmit circuit 4 (1040) is the transmit circuit 600 shown in FIG. 6A. ) can be. For example, the second type transmit circuit 1 (920), the second type transmit circuit 2 (1010), the second type transmit circuit 3 (1020), or the second type transmit circuit 4 (1040) may include a linear regulator or comparator. It may include a power amplifier (PA, 610), a low noise amplifier (LNA, 620), a filter and duplexer 630, a plurality of MIPI controllers 640, and an antenna switch (ASW, 650).

The second type ET modulator 910 includes a linear regulator (eg, linear regulator 410 in FIG. 4A ), a comparator (eg, comparator 420 in FIG. 4A ), and a switching regulator (eg, switching regulator 430 in FIG. 4A ). The second type ET modulator 910 may be the ET modulator 400 shown in FIG. 4A.

The third type ET modulator 1030 includes a linear regulator (eg, the linear regulator 410 of FIG. 4C ), a comparator (eg, the comparator 420 of FIG. 4C ), and a switching regulator (eg, the switching regulator 430 of FIG. 4C ) and a multiplexer (eg, the multiplexer 480 of Fig. 4c) The third type ET modulator 1030 may be the ET modulator 470 shown in Fig. 4c.

The first antenna module 242 to the fifth antenna module 880 transmit the first transmission amplified by the first type transmission circuit 810, the second type transmission circuit 1 920 to the second type transmission circuit 4 1040. The signal to the fifth transmission signal may be transmitted to the base station through the network.

According to various embodiments, the first type transmission circuit 810 and the second type transmission circuit 1 920 are disposed on top of the electronic device 101, and the third type ET modulator 1030 is the electronic device 101 ) can be placed at the bottom of The third type ET modulator 1030 uses the multiplexer 480 to provide an envelope signal to the first type transmission circuit 810, and the second type transmission circuit 1 920 and the second type transmission circuit 4 When providing 1040, the signal input to the switching regulator can be controlled.

For example, when the third-type ET modulator 1030 amplifies the first transmission signal of the first-type transmission circuit 810 including the linear regulator, the linear regulator included in the first-type transmission circuit 810 The output signal may be output to the switching regulator 430 as an input signal. When the third type ET modulator 1030 amplifies the transmission signals of the second type transmission circuit 1 (920) and the second type transmission circuit 4 (1040) that do not include a linear regulator, the third type ET modulator (1030) An output signal of the linear regulator 410 included in may be output as an input signal to the switching regulator 430 .

In the present invention, since the first type transmission circuit 810 includes a linear regulator and the third type ET modulator 1030 includes a linear regulator, a comparator, a switching regulator, and a multiplexer, the third type ET modulator 1030 Even if is disposed at the bottom of the electronic device 101, the third type ET modulator 1030 may be electrically connected to the first type transmission circuit 810 and the second type transmission circuit 1920. For example, since the final envelope signal is output from a linear regulator included in the first type transmission circuit 810 or outputted from a linear regulator included in the third type ET modulator 1030, signal distortion will not occur. can

According to various embodiments, the second type ET modulator 910 may be connected to the second type transmission circuit 2 (1010) and the second type transmission circuit 3 (1020). Since the envelope signal output from the second-type ET modulator 910 is directly transmitted to the second-type transmission circuit 2 (1010) and the second-type transmission circuit 3 (1020), signal distortion may not occur. In the electronic device 101 according to the third embodiment, the frequency band is widened or the distance between the third type ET modulator 1030 and the first type transmission circuit 810 or the second type transmission circuit 1 (920) is increased. Even if there is no distortion of the final envelope output signal, it is possible to construct a circuit with a small number of ET modulators.

As described above, the electronic device 101 according to various embodiments includes a first amplifier 311 configured to amplify a first transmission signal, and an N corresponding to a first designated frequency band of the first transmission signal. A first transmission circuit 310 including a first linear regulator 313 configured to supply a first voltage to the first amplifier 311 based on a bellop, and a second amplifier 321 configured to amplify a second transmission signal ), and a second linear regulator 323 configured to supply a second voltage to the second amplifier 321 based on an envelope corresponding to a second designated frequency band of the second transmission signal. circuit 320, a switching regulator 340 or 430 electrically connected to the first amplifier 311 and the second amplifier 321, and a control circuit 330, wherein the control circuit 330 , When the first transmission signal is transmitted to an external electronic device through the first transmission circuit 310, based on an envelope corresponding to a third frequency band lower than the first designated frequency band of the first transmission signal to supply a third voltage to the first amplifier 311 using the switching regulator 340 or 430, and transmit the second transmission signal to an external electronic device through the second transmission circuit 320 In this case, the second amplifier uses the switching regulator 340 or 430 to set a fourth voltage based on the envelope corresponding to the third frequency band lower than the second designated frequency band of the second transmission signal. (321) can be supplied.

According to various embodiments, the first transmission circuit 310 further includes a first comparator that compares the first voltage and the third voltage, and the second transmission circuit 320 compares the second voltage and the third voltage. A second comparator comparing the fourth voltage may be further included.

According to various embodiments, the first linear regulator 313 controls the first voltage so that the first voltage tracks an envelope corresponding to the first designated frequency band, and the second linear regulator ( 323) may control the second voltage so that the second voltage tracks an envelope corresponding to the second designated frequency band.

According to various embodiments, the first linear regulator 313 or the second linear regulator 323 may compensate for noise generated by the switching regulator 340 or 430 by regulating it.

According to various embodiments, the first designated frequency band may be different from the second designated frequency band.

According to various embodiments, the first transmission circuit 310 further includes a multiplexer 480, and the control circuit 330 controls the multiplexer 480 to control the switching regulator ( 340 or 430) to control the voltage input.

As described above, the electronic device 101 according to various embodiments includes a first amplifier 311 configured to amplify a first transmission signal, and an N corresponding to a first designated frequency band of the first transmission signal. A first transmission circuit 310 including a first linear regulator 313 configured to provide a first envelope signal to the first amplifier 311 based on a bellop, configured to amplify a second transmission signal A second transmission circuit 320 including a second amplifier 321, an envelope tracking (ET) modulator 450 electrically connected to the first amplifier 311 and the second amplifier 321, and a control circuit ( 330), wherein the control circuit 330 transmits the first envelope signal to the ET modulator 450 when transmitting the first transmission signal to an external electronic device through the first transmission circuit 310. ) to the first amplifier 311, and when the second transmission signal is transmitted to an external electronic device through the second transmission circuit 320, the first output from the ET modulator 450 2 envelope signals may be provided to the second amplifier 321 .

According to various embodiments, the ET modulator 450 includes a switching regulator 340 or 430, and the control circuit 330 generates a high-frequency signal output from the first linear regulator 313 and the The first envelope signal generated by the low frequency signal output from the switching regulator 340 or 430 may be provided to the first amplifier 311 .

According to various embodiments, the ET modulator 450 further includes a switching regulator 340 or 430 and a second linear regulator 323, and the control circuit 330 includes the second linear regulator ( 323) and the second envelope signal generated by the low-frequency signal output from the switching regulator 340 or 430 may be provided to the second amplifier 321.

According to various embodiments, the ET modulator 450 includes a switching regulator 340 or 430, the second transmission circuit 320 further includes a second linear regulator 323, and the The control circuit 330 transmits the second envelope signal generated by the high frequency signal output from the second linear regulator 323 and the low frequency signal output from the switching regulator 340 or 430 to the second amplifier. (321) can be provided.

According to various embodiments, the ET modulator 450 further includes a second linear regulator 323, a switching regulator 340 or 430, and a multiplexer 480, and the control circuit 330 , the multiplexer 480 can be controlled to control a signal input to the switching regulator 340 or 430.

According to various embodiments, when the control circuit 330 amplifies the first transmission signal of the first transmission circuit 310, the output signal of the first linear regulator 313 is converted to the switching regulator 340. , or the multiplexer 480 can be controlled to output as an input signal of 430).

According to various embodiments, the ET modulator 450 further includes a second linear regulator 323, and the control circuit 330 amplifies the second transmission signal of the second transmission circuit 320. In this case, the multiplexer 480 may be controlled to output an output signal of the second linear regulator 323 included in the ET modulator 450 as an input signal of the switching regulator 340 or 430.

As described above, the electronic device 101 according to various embodiments includes a first amplifier 311 configured to amplify a first transmission signal, and an N corresponding to a first designated frequency band of the first transmission signal. A first transmission circuit 310 including a first linear regulator 313 configured to supply a first voltage to the first amplifier 311 based on a bellop, and a second amplifier 321 configured to amplify a second transmission signal ) and electrically connected to the second transmission circuit 320 including the first amplifier 311 and the second amplifier 321, and to an envelope corresponding to the second designated frequency band of the second transmission signal. an envelope tracking (ET) modulator 450 including a second linear regulator 323 configured to supply a second voltage to the second amplifier 321 based on the 330 corresponds to a third frequency band lower than the first designated frequency band of the first transmission signal when transmitting the first transmission signal to an external electronic device through the first transmission circuit 310 Supplying a third voltage based on the envelope to the first amplifier 311 using the ET modulator 450, and transmitting the second transmission signal to an external electronic device through the second transmission circuit 320 In case of transmission, the second amplifier 321 uses the ET modulator 450 to generate a fourth voltage based on the envelope corresponding to the third frequency band lower than the second designated frequency band of the second transmission signal. ) can be supplied.

According to various embodiments, the ET modulator 450 further includes a switching regulator 340 or 430, and the control circuit 330 applies the third voltage to the switching regulator 340 or 430. is supplied to the first amplifier 311 using , and the fourth voltage can be supplied to the second amplifier 321 using the switching regulator 340 or 430 .

According to various embodiments, the first transmission circuit 310 further includes a first comparator that compares the first voltage and the third voltage, and the ET modulator 450 compares the second voltage with the third voltage. A second comparator for comparing 4 voltages may be included.

According to various embodiments, the ET modulator 450 further includes a switching regulator 340 or 430 and a multiplexer 480, and the control circuit 330 includes the multiplexer 480 It is possible to control a signal input to the switching regulator 340 or 430 by controlling.

According to various embodiments, when the control circuit 330 amplifies the first transmission signal of the first transmission circuit 310, the output signal of the first linear regulator 313 is converted to the switching regulator 340. , or when controlling the multiplexer 480 to output as an input signal of 430 and amplifying the second transmission signal of the second transmission circuit 320, the second linear regulator included in the ET modulator 450 The multiplexer 480 may be controlled to output the output signal of 323 as an input signal of the switching regulator 340 or 430 .

According to various embodiments, the ET modulator 450 further includes a switching regulator 340 or 430, and the first linear regulator 313 or the second linear regulator 323 is the switching regulator Noise generated in 340 or 430 may be compensated by regulating.

According to various embodiments, the first designated frequency band may be different from the second designated frequency band.

11 is a diagram illustrating an operation of an electronic device according to various embodiments.

Referring to FIG. 11 , in operation 1101, the control circuit 330 of the electronic device 101 may detect a transmission signal. According to one embodiment, the control circuit 330 may include, for example, a communication processor (eg, the processor 120 of FIG. 2 , the first communication processor 212, or the second communication processor 214), an RFIC ( Example: The first RFIC 222 or the second RFIC 224 of FIG. 2 , a wireless communication module (eg, the wireless communication module 192 of FIG. 1 or 2 ), or an ET DAC of various embodiments. It may refer to a comprehensive concept including a circuit for controlling wireless communication.

According to an embodiment, the electronic device 101 generates a first voltage based on a first amplifier 311 configured to amplify a first transmission signal and an envelope corresponding to a first designated frequency band of the first transmission signal. A first transmission circuit 310 including a first linear regulator 313 set to supply to the first amplifier 311, a second amplifier 321 set to amplify the second transmission signal, and a second transmission signal A second transmission circuit 320 including a second linear regulator 323 configured to supply a second voltage to the second amplifier 321 based on an envelope corresponding to a second designated frequency band may be included. According to one embodiment, the first designated frequency band may be different from the second designated frequency band. According to an embodiment, the electronic device 101 may include an ET modulator 450 electrically connected to the first amplifier 311 and the second amplifier 321 . In various embodiments, ET modulator 450 may include switching regulator 340 or 430 . According to an embodiment, the first transmission circuit 310 includes a first comparator that compares the first voltage and the third voltage, and the second transmission circuit 320 compares the second voltage and the fourth voltage. 2 Comparators may be included. According to an embodiment, the first linear regulator 313 controls the first voltage so that the first voltage tracks an envelope corresponding to a first designated frequency band, and noise generated by the switching regulator 340 or 430 can be compensated by regulating. According to an embodiment, the second linear regulator 323 controls the second voltage so that the second voltage tracks an envelope corresponding to a second designated frequency band, and noise generated by the switching regulator 340 or 430 can be compensated by regulating.

In operation 1103, the control circuit 330 may determine whether the transmitted signal corresponds to the first transmitted signal or the second transmitted signal.

In operation 1103, if the transmission signal is the first transmission signal (eg, “YES” in operation 1103), in operation 1105, the control circuit 330 controls an N that corresponds to a frequency band lower than the designated frequency band of the first transmission signal. Based on the bellop, the first transmission signal may be supplied to the first amplifier 311. According to an embodiment, when the control circuit 330 transmits the first transmission signal to the external electronic device through the first transmission circuit 310, the third frequency band lower than the first designated frequency band of the first transmission signal Based on the envelope corresponding to , the third voltage may be supplied to the first amplifier 311 using the switching regulator 340 or 430 .

In operation 1103, if the transmission signal is the second transmission signal (eg, “No” in operation 1103), in operation 1107, the control circuit 330 is configured to send an N that corresponds to a frequency band lower than the designated frequency band of the second transmission signal. Based on the bellop, the second transmission signal may be supplied to the 22nd amplifier 321. According to an embodiment, when the control circuit 330 transmits the second transmission signal to the external electronic device through the second transmission circuit 320, the third frequency band lower than the second designated frequency band of the second transmission signal Based on the envelope corresponding to , the fourth voltage may be supplied to the second amplifier 321 using the switching regulator 340 or 430 .

Various embodiments of the present invention disclosed in the present specification and drawings are only presented as specific examples to easily explain the technical content of the present invention and help understanding of the present invention, and are not intended to limit the scope of the present invention. Therefore, the scope of the present invention should be construed as including all changes or modifications derived based on the technical idea of the present invention in addition to the embodiments disclosed herein.

101: electronic device
120: processor
130: memory
190: communication module
192: wireless communication module
212: first communication processor
222 First RFIC
224: second RFIC
310: first transmission circuit
320: second transmission circuit
330: control circuit
340: switching regulator

Claims (11)

In a portable communication device,
multiple antennas;
A first communication chip operably connected to at least one of the plurality of antennas, the first communication chip includes a first circuit unit including a first linear regulator, a first amplifier for signal transmission, a first ET DAC ( envelope tracking digital analog convertor), and a first low-noise amplifier for receiving a signal,
A second communication chip operably connected to at least one of the plurality of antennas, the second communication chip comprising a second circuit unit including a second linear regulator, a second amplifier for signal transmission, a second ET DAC, and a second low noise amplifier for receiving a signal;
Switching disposed outside the first communication chip and the second communication chip and operably connected to the first circuit unit including the first linear regulator and the second circuit unit including the second linear regulator, respectively including a regulator;
The first amplifier is operatively connected to the first circuit portion including the first linear regulator;
The second amplifier is operatively connected to the second circuit portion including the second linear regulator,
The first circuit unit including the first linear regulator adjusts a voltage corresponding to a first envelope signal of a first input radio frequency (RF) signal, and the adjusted voltage is at least a signal output from the switching regulator. set to output the regulated voltage to the first amplifier so that it can be used for envelope tracking based on
The first ET DAC is set to control the first linear regulator in relation to the first envelope signal;
The second circuit unit including the second linear regulator adjusts a voltage corresponding to a second envelope signal of a second input radio frequency (RF) signal, and the adjusted voltage is at least a signal output from the switching regulator. set to output the regulated voltage to the second amplifier so that it can be used for envelope tracking based on
The second ET DAC is configured to control the second linear regulator in relation to the second envelope signal;
The first low noise amplifier is configured to amplify an input RF signal received through at least one antenna among the plurality of antennas connected to the first communication chip;
The second low noise amplifier is configured to amplify an input RF signal received through at least one of the plurality of antennas connected to the second communication chip.
According to claim 1,
wherein the first amplifier is configured to receive the first envelope signal regulated by the first linear regulator.
According to claim 1,
The switching regulator and the first communication chip are arranged so that a first electrical path between the switching regulator and the first linear regulator is longer than a second electrical path between the first ET DAC and the first linear regulator. Device.
According to claim 1,
a first envelope tracking (ET) modulator comprising the switching regulator; and
A portable communication device further comprising a second ET modulator including another switching regulator and a third linear regulator therein.
According to claim 1,
The first communication chip,
A portable communication device configured to be disposed closer to the bottom of the portable communication device than to the top of the portable communication device.
According to claim 1,
The second communication chip,
A portable communication device configured to be disposed closer to the top of the portable communication device than to the bottom of the portable communication device.
According to claim 1,
The switching regulator,
and a first electrical path between the switching regulator and the second communication chip is longer than a second electrical path between the switching regulator and the first communication chip.
According to claim 1,
The first linear regulator,
A portable communication device configured to compensate for noise generated by the switching regulator.
According to claim 1,
The first communication chip,
A portable communication device further comprising a comparator configured to compare an input voltage to a reference voltage.
in the system,
A first communication chip operably connected to at least one of a plurality of antennas, the first communication chip includes a first circuit unit including a first linear regulator, a first amplifier for signal transmission, a first ET DAC (envelope tracking digital analog convertor), and a first low-noise amplifier for receiving a signal,
A second communication chip operably connected to at least one of the plurality of antennas, the second communication chip comprising a second circuit unit including a second linear regulator, a second amplifier for signal transmission, a second ET DAC, and a second low noise amplifier for receiving a signal;
A third chip including a switching regulator, the switching regulator being operably connected to the first circuit part including the first linear regulator and the second circuit part including the second linear regulator, respectively;
The first amplifier is operatively connected to the first circuit portion including the first linear regulator;
The second amplifier is operatively connected to the second circuit portion including the second linear regulator,
The first circuit unit including the first linear regulator adjusts a voltage corresponding to a first envelope signal of a first input radio frequency (RF) signal, and the adjusted voltage is at least a signal output from the switching regulator. set to output the regulated voltage to the first amplifier so that it can be used for envelope tracking based on
The first ET DAC is set to control the first linear regulator in relation to the first envelope signal;
The second circuit unit including the second linear regulator adjusts a voltage corresponding to a second envelope signal of a second input radio frequency (RF) signal, and the adjusted voltage is at least a signal output from the switching regulator. set to output the regulated voltage to the second amplifier so that it can be used for envelope tracking based on
The second ET DAC is configured to control the second linear regulator in relation to the second envelope signal;
The first low noise amplifier is configured to amplify an input RF signal received through at least one antenna among the plurality of antennas connected to the first communication chip;
The second low noise amplifier is configured to amplify an input RF signal received through at least one of the plurality of antennas connected to the second communication chip.
In the communication chip,
a first amplifier for signal transmission;
a second amplifier for receiving a signal;
a linear regulator operatively connected to the first amplifier, adjusting a voltage corresponding to an envelope signal of an input radio frequency (RF) signal, and outputting the adjusted voltage to the first amplifier; and
An envelope tracking digital analog converter (ET DAC) for controlling the linear regulator in association with the envelope signal;
wherein the regulated voltage is configured to be used for envelope tracking based at least in part on a signal output from a switching regulator disposed external to the communication chip.

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