KR20210030319A - Apparatus and method for selectively supplying voltage to a plurality of amplifiers using switching regulator - Google Patents

Abstract

Disclosed are an apparatus for selectively supplying voltage to a plurality of amplifiers using a switching regulator to apply an envelope tracking (ET) technology to a wide bandwidth signal and a method thereof. According to various embodiments of the present invention, the apparatus comprises: a first transmit circuit including a first amplifier configured to amplify a first transmission signal and a first linear regulator configured to supply a first voltage to the first amplifier on the basis of on an envelope corresponding to a first designated frequency band of the first transmission signal; a second transmission circuit including a second amplifier configured to amplify a second transmission signal and a second linear regulator configured to supply a second voltage to the second amplifier on the basis of an envelope corresponding to a second designated frequency band of the second transmission signal; a switching regulator electrically connected to the first amplifier and the second amplifier; and a control unit. The control circuit is configured to use the switching regulator to supply a third voltage to the first amplifier on the basis of an envelope corresponding to a third frequency band lower than the first designated frequency band of the first transmission signal when the first transmission signal is transmitted to an external electronic device through the first transmission circuit, and uses the switching regulator to supply a fourth transmission signal to the second amplifier on the basis of an envelope corresponding to the third frequency band lower than the second designated frequency band of the second transmission signal when the second transmission signal is transmitted to the external electronic device through the second transmission circuit. Various other embodiments are possible.

Description

A method and apparatus for selectively supplying voltage to a plurality of amplifiers using a switching regulator TECHNICAL FIELD [APPARATUS AND METHOD FOR SELECTIVELY SUPPLYING VOLTAGE TO A PLURALITY OF AMPLIFIERS USING 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 higher data rates in order to meet the ever-increasing traffic demand of wireless data. In order to support a high data rate, the bandwidth of the signal becomes wider, and the modulation method of the signal becomes complicated, so that the peak to average power ratio (PAPR) increases. Therefore, a power amplifier that consumes a large amount of power in an electronic device must have high efficiency and high linearity characteristics.

In order to have high efficiency and high linearity characteristics for a wideband and high PAPR signal, an envelope tracking (ET) technology has been applied to a fourth generation (4G) communication system. Unlike conventional amplifiers using a fixed power supply voltage, ET technology is a technology to reduce power consumption by applying an envelope signal of an RF input signal applied to an amplifier (eg, an RF power amplifier) as a power supply voltage of the amplifier. Since the ET technology adjusts the envelope signal so that the voltage Vcc applied to the amplifier tracks the envelope of the RF signal, power waste can be minimized so that the amplifier always operates with high efficiency. The amplifier generates third-order intermodulation distortion (IMD3) when amplifying the signal, and the third-order intermodulation component may have a sweet spot point. ET technology is applied to the amplifier. In this case, it is possible to have a higher linearity than a conventional power amplifier through Vcc shaping capable of tracking a sweet spot.

As the wireless communication system has evolved from 3G (third generation) to 4G, the transmission speed has rapidly improved, and differentiated services have been actively developed in the mobile service market. However, the evolution of mobile communication networks does not stop here, and discussions on new 5G mobile communications such as enhanced mobile-broadband (eMBB), ultra-reliable & low latency communication (URLLC), and massive machine-type communication (mMTC) have been conducted at home and abroad. It is progressing in earnest. The actual implementation of 5G mobile communication can be largely divided into Sub6 5G and mmWave 5G. Sub6 5G and mmWave 5G have more complex signal modulation methods for faster ultra-high-speed data transmission compared to 4G LTE signals, resulting in wider bandwidth and greater PAPR. It is difficult to develop a modulator that can track because the bandwidth of the signal is wider, but ET technology is required more and more because the efficiency of the RF power amplifier is lower in order to transmit a signal with increased PAPR. 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, a method and apparatus for applying ET technology to a wide bandwidth signal without a distance limitation between the ET modulator and the transmission circuit by including a linear regulator of an ET modulator (envelope tracking modulator) in a transmission circuit is disclosed. can do.

An electronic device according to various embodiments of the present disclosure may generate the 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 transmission circuit including a first linear regulator set to supply to a first amplifier, a second amplifier set to amplify a second transmission signal, and an envelope corresponding to a second designated frequency band of the second transmission signal And 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, and the control When transmitting the first transmission signal to an external electronic device through the first transmission circuit, the circuit is 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 of the second transmission signal It may be set to supply a fourth voltage to the second amplifier using the switching regulator based on an envelope corresponding to the third frequency band lower than the frequency band.

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. envelope) a first transmission circuit comprising a first linear regulator configured to provide a signal to the first amplifier; A second transmission circuit including a second amplifier configured to amplify a second transmission signal; An envelope tracking (ET) modulator electrically connected to the first amplifier and the second amplifier; And a control circuit, wherein the control circuit, when transmitting the first transmission signal to an external electronic device through the first transmission circuit, transmits the first envelope signal to the first amplifier using the ET modulator. And when transmitting the second transmission signal to an external electronic device through the second transmission circuit, a 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 generate the 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. Electrically with a first transmission circuit including a first linear regulator set to supply to a first amplifier, a second transmission circuit including a second amplifier set to amplify a second transmission signal, the first amplifier and the second amplifier An envelope tracking (ET) modulator comprising a second linear regulator connected 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 a control A circuit, wherein when transmitting the first transmission signal to an external electronic device through the first transmission circuit, the control circuit is 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 It may be set to supply a fourth voltage to the second amplifier using the ET modulator based on an envelope corresponding to the third frequency band lower than the second designated frequency band of the transmission signal.

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

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

1 is a block diagram of an electronic device 101 in 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 diagram illustrating a configuration of an electronic device in which an ET modulator is applied to a transmission circuit according to various embodiments.
4A to 4C are diagrams illustrating a 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 diagram illustrating a configuration of an electronic device in 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 a configuration of an electronic device including a transmission circuit to which an ET modulator is applied according to various embodiments.
11 is a diagram illustrating a method of operating an electronic device according to various embodiments.

An electronic device according to various embodiments disclosed in this document may be a device 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. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

Various embodiments of the present document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutes of the corresponding embodiment. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the above items unless clearly indicated otherwise in a related context. 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 the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish the component from other Order) is not limited. Some (eg, a first) component is referred to as “coupled” or “connected” to another (eg, a second) component, with or without the terms “functionally” or “communicatively”. When mentioned, it means that any of the above components may be connected to the other components directly (eg by wire), wirelessly, or via a third component.

The term "module" used in this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic blocks, parts, or circuits. The module may be an integrally configured component or a minimum unit of the component or a part thereof that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) that can be read by a machine (eg, electronic device 101). It may be implemented as software (for example, the program 140) including them. For example, the processor (eg, the processor 120) of the device (eg, the electronic device 101) may call and execute at least one command among one or more commands stored from a storage medium. 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. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here,'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term refers to the case where data is semi-permanently stored in the storage medium. It does not distinguish between temporary storage cases.

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

According to various embodiments, each component (eg, module or program) of the above-described components may include a singular number or a plurality of entities. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components in the same or similar to that performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component may be sequentially, parallel, repeatedly, or heuristically executed, or one or more of the operations may be 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, the electronic device 101 communicates with the electronic device 102 through a first network 198 (for example, a short-range wireless communication network), or 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, and 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 ) Can be included. In some embodiments, 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 to the electronic device 101. In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, a program 140) to implement at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and can perform various data processing or operations. According to an embodiment, as at least part of data processing or operation, the processor 120 may transfer commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132. It is loaded into, processes commands or data stored in the volatile memory 132, and the result data may be stored in the nonvolatile memory 134. According to an 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 graphic processing unit, an image signal processor) that can be operated independently or together with the main processor 121 (eg, a central processing unit or an application processor). , A sensor hub processor, or a communication processor). Additionally or alternatively, the coprocessor 123 may be set to use lower power than the main processor 121 or to be specialized for a designated function. The secondary processor 123 may be implemented separately from the main processor 121 or as a part thereof.

The co-processor 123 is, for example, in 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, executing an application). ) While in the state, together with the main processor 121, at least one of the components of the electronic device 101 (for example, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the functions or states associated with it. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as a part of other functionally related components (eg, the camera module 180 or the communication module 190). have.

The memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176). The data may include, for example, software (eg, the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a nonvolatile 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 of the electronic device 101 (eg, the processor 120) from outside (eg, a user) of the electronic device 101. The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 155 may output an sound signal to the outside of the electronic device 101. The sound 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 incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of the speaker.

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 strength of a force generated by the touch. have.

The audio module 170 may convert sound into an electrical signal, or conversely, may convert an electrical signal into sound. According to an embodiment, the audio module 170 acquires sound through the input device 150, the sound output device 155, or an external electronic device (eg: Sound can be output through the electronic device 102) (for example, a speaker or headphones).

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 an embodiment, the sensor module 176 includes, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more specified protocols that may be used for the electronic device 101 to connect directly or wirelessly with an external electronic device (eg, the electronic device 102 ). According to an 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 can be physically connected to an external electronic device (eg, the electronic device 102). According to an 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 an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that a user can perceive through tactile or motor sensations. According to an 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 a still image and a video. According to an 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 an embodiment, the power management module 388 may be implemented as at least a part of, for example, a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101. According to an 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 includes 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). It is possible to support establishment and communication through the established communication channel. The communication module 190 operates independently of the processor 120 (eg, an application processor) and may include one or more communication processors supporting direct (eg, wired) communication or wireless communication. According to an embodiment, the communication module 190 is 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 local area network (LAN) communication module, or a power line communication module) may be included. Among these communication modules, a corresponding communication module is a first network 198 (for example, a short-range communication network such as Bluetooth, WiFi direct or IrDA (infrared data association)) or a second network 199 (for example, a cellular network, the Internet, or It can communicate with external electronic devices through a computer network (for example, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into a single component (eg, a single chip), or may be implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 192 uses subscriber information stored in the subscriber identification module 196 (eg, International Mobile Subscriber Identifier (IMSI)) in a communication network such as the first network 198 or the second network 199. The electronic device 101 can be checked and authenticated.

The antenna module 197 may transmit a signal or power to the outside (eg, an external electronic device) or receive from the outside. According to an embodiment, the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an 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, for example, provided by the communication module 190 from the plurality of antennas. Can be chosen. The signal or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as part of the antenna module 197.

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

According to an embodiment, the command 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 a device of the same or different type as the electronic device 101. According to an embodiment, all or some of the operations executed by the electronic device 101 may be executed by one or more of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device 101 In addition or in addition, it is possible to request one or more external electronic devices 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 transmit a result of the execution to the electronic device 101. The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this, 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, a fourth RFIC 228, a first radio frequency front end (RFFE) 232, a second RFFE 234, a first antenna module 242, a second antenna module 244, and an antenna (248) may be included. 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 an 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 part of the wireless communication module 192. According to another embodiment, the fourth RFIC 228 may be omitted or included as a part of the third RFIC 226.

The first communication processor 212 may support establishment of a communication channel of a band to be used for wireless communication with the first network 292 and communication of a legacy network 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 communicates 5G network 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 an 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 establish a communication channel and support 5G network communication through the established communication channel. According to an embodiment, the first communication processor 212 and the second communication processor 214 may be implemented in a single chip or 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 a single package with the processor 120, the coprocessor 123, or the communication module 190. have.

The first RFIC 222 transmits a baseband signal generated by the first communication processor 212 to about 700 MHz to about 3 GHz used for the first network 292 (eg, a legacy network). Can be converted to a radio frequency (RF) signal. Upon reception, an RF signal is obtained from the first network 292 (eg, a legacy network) through an antenna (eg, the first antenna module 242), and through an RFFE (eg, the 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.

The second RFIC 224 transmits a baseband signal generated by the first communication processor 212 or the second communication processor 214 to be used in the second network 294 (for example, a 5G network). It can be converted into an RF signal (hereinafter, referred to as 5G Sub6 RF signal) of the Sub6 band (eg, about 6 GHz or less). Upon reception, the 5G Sub6 RF signal is obtained from the second network 294 (eg, 5G network) through an antenna (eg, the second antenna module 244), and RFFE (eg, the second RFFE 234). It can be pretreated through. The second RFIC 224 may convert the preprocessed 5G Sub6 RF signal into a baseband signal to be processed by a corresponding one of the first communication processor 212 or 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, 5G network). It can be converted into a signal (hereinafter, 5G Above6 RF signal). Upon reception, the 5G Above6 RF signal may be obtained from the second network 294 (eg, 5G network) through an antenna (eg, antenna 248) and preprocessed through the 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 an embodiment, the third RFFE 236 may be formed as part of the third RFIC 226.

According to an embodiment, the electronic device 101 may include the fourth RFIC 228 separately or at least as a 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, IF signal) of an intermediate frequency band (eg, about 9 GHz to about 11 GHz). After conversion, the IF signal may be transferred to the third RFIC 226. The third RFIC 226 may convert the IF signal into a 5G Above6 RF signal. Upon reception, the 5G Above6 RF signal may be received from the second network 294 (eg, 5G network) through an antenna (eg, antenna 248) and converted into an IF signal by the 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 an 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 an embodiment, at least one of the first antenna module 242 and 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 an embodiment, the third RFIC 226 and the antenna 248 may be disposed on the same substrate to form the third antenna module 246. For example, the wireless communication module 192 or the processor 120 may be disposed on a first substrate (eg, a main PCB). In this case, the third RFIC 226 is located in a partial area (eg, lower surface) of the second substrate (eg, sub PCB) separate from the first substrate, and the antenna 248 is disposed in another area (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 can reduce the loss (eg, attenuation) of a signal in a high frequency band (eg, about 6 GHz to about 60 GHz) used for communication in a 5G network, for example, by a transmission line. Accordingly, the electronic device 101 may improve the quality or speed of communication with the second network 294 (for example, a 5G network).

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

The second network 294 (e.g., 5G network) can be operated independently from the first network 292 (e.g., a legacy network) (e.g., Stand-Alone (SA)), or can be connected and operated (e.g.: Non-Stand Alone (NSA)). For example, a 5G network may have only an access network (eg, 5G radio access network (RAN) or next generation RAN (NG RAN)), and no core network (eg, 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 (e.g., LTE protocol information) for communication with a legacy network or protocol information (e.g., New Radio (NR) protocol information) for communication with a 5G network is stored in the memory 230 and other components (e.g., processor information) 120, the first communication processor 212, or the second communication processor 214.

3 is a diagram illustrating a configuration of an electronic device in which an ET modulator is applied to a transmission circuit according to various embodiments.

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 device. It may include a regulator 340.

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 it according to a transmission type and output it. 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 a 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 the transmission efficiency according to the signal attenuation or noise. I can.

According to various embodiments, the first transmission circuit 310 uses the first amplifier 311 to transmit a first transmission signal (eg, an RF input signal) to 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 set to amplify the first transmission signal. The first amplifier 311 uses power (eg, a fixed power voltage) supplied from the power management module (eg, the power management module 188 of FIG. 1) of the electronic device 101 to provide a weak signal (eg, The first transmission signal can be amplified by adding energy to the AC signal to create a larger AC waveform. When the first amplifier 311 amplifies the first transmission signal using a fixed power source, 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 characteristics, an envelope tracking (ET) technique may be applied to the first amplifier 311.

According to various embodiments, the ET technology provides an envelope signal of an RF input signal applied to an amplifier (for example, 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. Since ET technology adjusts the envelope signal so that the voltage (Vcc) applied to the amplifier tracks the RF envelope, power waste can be minimized so that the amplifier always operates with high efficiency. The ET modulator to which the ET technology is applied may include a linear regulator, a comparator, or a switching regulator, and the first transmission circuit 310 is a linear regulator included in the ET modulator (for example, the first linear regulator 313) or a comparator ( Example: A first comparator (not shown)) may be included.

According to various embodiments, although a 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 is the first It can be interpreted as being included in the linear regulator 313. The first comparator may compare the input voltage with the reference voltage to detect whether the input exceeds the reference voltage, and output the result as a digital value (eg, 0 or 1). For example, the first comparator may output a digital value of 0 or 1 by comparing the output of the switching regulator 340 and the output of the first linear regulator 313.

According to various embodiments, the first linear regulator 313 may be set 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. have. The first linear regulator 313 controls (or regulates) a voltage, and is designed to operate in a linear relationship between an input and an output. Since the first linear regulator 313 has a high speed characteristic, it is possible to 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. It can be controlled (or adjusted). The first linear regulator 313 adjusts the first voltage to correspond to the envelope, thereby reducing power used by the first amplifier 311 to amplify the first transmission signal.

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 (for example, a signal line through which a signal from the switching regulator 340 is transmitted), the first linear regulator 313 regulates to generate an envelope signal. Therefore, inductance due to the 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 about 700 MHz to about 3 GHz band used in the first network (eg, the first network 292 in FIG. 2 or the legacy network), and the second network (eg, in FIG. 2 ). Sub6 band (e.g., about 6 GHz or less), 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) There may 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 it according to a transmission type and output it. The RF signal input to the second transmission circuit 320 from the wireless communication module 192 (eg, the first communication processor 212 and the second communication processor 214 of FIG. 2) has a low-gain and low-output power. It can have a weak signal level. The second transmission circuit 320 may amplify the second transmission signal (eg, an RF input signal) into a high-gain, high-output signal (eg, an RF output signal) using the second amplifier 321. The second amplifier 321 may be set to amplify the second transmission signal. The second amplifier 321 applies power (eg, a fixed power voltage) supplied from the power management module (eg, the power management module 188 of FIG. 1) of the electronic device 101 to provide a weak signal (eg: The second transmission signal can be amplified by adding energy to the AC signal to create 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. I 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 can be interpreted as being included in the second linear regulator 323. The second comparator may compare the input voltage with the reference voltage to detect whether the input exceeds the reference voltage, and output the result as a digital value (eg, 0 or 1).

According to various embodiments, the second linear regulator 323 may be set 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. have. 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 so that the second voltage applied to the second amplifier 321 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), and the Sub6 band used for the second network 294 (or 5G network) (e.g. : It may be at least one of about 6GHz or less), an intermediate frequency band (eg, about 9GHz to about 11GHz), or a 5G Above6 band (eg, about 6GHz to about 60GHz).

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 may supply a desired voltage while turning on or off a switch element (eg, a 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 of FIG. 1, the electronic device 104) through the first transmission circuit 310, the first It may be set 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 set 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 is, for example, a communication processor (eg, the processor 120 of FIG. 2, the first communication processor 212, or the second communication processor 214), 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 envelope tracking digital analog (ET DAC) Convertor) may mean 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 such 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, a transmission circuit divided into "first" and "second" (eg, a first transmission circuit 310, a second transmission circuit 320), an amplifier (eg, a first amplifier 311), 2 The amplifier 321 and the linear regulator (eg, the first linear regulator 313 and the second linear regulator 323) perform the same function, and to facilitate identification, "first" and "second" In other embodiments, the first transmission circuit 310 and the second transmission circuit 320 may be set to process signals of different frequency bands.

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

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

The linear regulator 410 (e.g., the first linear regulator 311 and the second linear regulator 321 in FIG. 3) controls (or regulates) voltage, and outputs a constant voltage by comparing the output voltage and the reference voltage. can do. The linear regulator 410 is designed so that the relationship between the input and the 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 by regulating noise generated by the switching regulator 430. For example, even if a low-frequency signal from the switching regulator 430 is distorted by a trace (for example, a signal line through which a signal from the switching regulator 340 is transmitted), the linear regulator 410 regulates the envelope signal. Can be created. Since the linear regulator 410 has a high speed characteristic, it can track a wide bandwidth envelope signal, 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. I 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, a 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 the switch element until the output voltage reaches the required voltage, and turns off the switch element when the output voltage reaches a desired voltage to consume input power. I can't. 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 power charged in the inductor 440 is transferred to the output terminal. Can be supplied as When the switch element is turned on, the output power increases, and when the switch element is turned off, the output power may decrease. With this principle, the switching regulator 430 can control the output power. The switching regulator 430 may output a large amount of current (or voltage) (eg, high efficiency), but it may be difficult to track a wide bandwidth envelope signal because of its slow speed.

Referring to FIG. 4B, the ET modulator 450 may be designed to include only the switching regulator 430. When the 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 may be configured with a transmission circuit (eg, the first transmission circuit of FIG. 3 ). 310), 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 (e.g., the first linear regulator 311, the second linear regulator 321 of FIG. 3), a comparator 420, or a switching regulator 430 (e.g., the switching regulator 340 of FIG. 3) ) Is described in detail with reference to FIG. 3 or 4A, and thus 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. In short, it is also referred to as'MUX', and it is also referred to as a data selector because it outputs multiple input data as a single output. When the ET modulator 470 is connected to at least two transmission circuits, a linear regulator is included in one transmission circuit, and a linear regulator is not included in the other transmission circuit, the multiplexer 480 is a switching regulator 430 ), you can control the input signal. For example, when a linear regulator is included in the transmission circuit (for example, the first transmission circuit 310 and the second transmission circuit 320 of FIG. 3), the multiplexer 480 is 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, an ET modulator (e.g., 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 (e.g., the switching regulator of FIG. 3). 340), the switching regulator 430 of FIGS. 4A to 4C), or a linear regulator (for example, the linear regulators 313 and 323 of FIG. 3, and the linear regulator 410 of FIG. 4A or 4C) are controlled to A signal 510 may be output. The envelope signal 510 may be generated using a low frequency signal 520 generated by a switching regulator and a high frequency signal 530 generated by a linear regulator. The ET modulator may reduce power consumption of the electronic device 101 by controlling the envelope signal 510 applied to the amplifier (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 ), and 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 convertor (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-phse “I” signal with a phase of 0 degrees and an orthogonal “Q” signal with a phase of 90 degrees. have. The digital signal processor may adjust shaping or delay of the envelope signal output from the envelope detector. The amplifier generates third-order intermodulation distortion (IMD3) when amplifying the signal, and the third-order intermodulation component may have a sweet spot point. Shaping tracks the sweet spot. Thus, the envelope signal may be controlled by controlling the envelope signal, and the digital signal processing unit may control the envelope signal to track a transmission signal amplified by the transmission circuit 600. According to various embodiments , Although the drawing shows that the ET DAC 660 is included in the communication processor 212, the ET DAC 660 may be included in the RFIC 222.

When transmitting, the RFIC 222 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). I can.

The ET modulator 400 may include a linear regulator 410, a comparator 420, or a switching regulator 430. A linear regulator 410 (e.g., the first linear regulator 311, the second linear regulator 321 of FIG. 3), a comparator 420, or a switching regulator 430 (e.g., the switching regulator 340 of FIG. 3) ) Is described in detail with reference to FIG. 3 or 4A, and thus 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. (Antenna switch (ASW), 650) may be included. The power amplifier 610 (for example, 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 may be connected to an antenna of the electronic device 101 (eg, the first antenna module 242 of FIG. 2) to separate the transmission/reception frequency of the electronic device 101. The filter and duplexer 630 may include a plurality of filters or duplexers for each frequency band. The 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 the frequency band of the 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 increase. As the distance 670 (for example, the distance between the ET modulator 400 and the transmission circuit 600) increases, the signal distortion may increase as the bandwidth of the signal increases. Accordingly, the ET modulator 400 according to the comparative example may be mounted at a distance 670 as close as possible to the transmission circuit 600. When ET technology is applied to a signal having 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 diagram illustrating a configuration of an electronic device in which an ET modulator is applied to a transmission circuit according to various embodiments.

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

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).

During transmission, 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 be configured as a switching regulator 430. The ET modulator 450 may be a 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, detailed description may be omitted.

The transmission circuit 310 includes an amplifier 311 (for example, the first amplifier 311 or the second amplifier 321 in FIG. 3), a linear regulator 313 (for example, the first linear regulator 313 in FIG. 3), or A second linear regulator 323), a comparator 420 (example: the comparator 420 of FIG. 4A), a low noise amplifier 620, a filter and a duplexer 630, a plurality of MIPI controllers 640, an antenna switch (ASW, 650) or 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-phse “I” signal with a phase of 0 degrees and an orthogonal “Q” signal with a phase of 90 degrees. I can. Since the configuration included in the transmission circuit 310 has been described in detail with reference to FIGS. 3, 4A, and 6A, detailed description may be omitted.

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

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

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 an ET modulator (e.g., the ET modulator 400 of FIG. 4A, the ET modulator 450 of FIG. 4B, and the ET modulator 470 of FIG. 4C). have. 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 reduced by 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 an envelope output signal of the present invention. Conventionally, after an envelope signal is generated from a linear regulator (for example, the linear regulator 410 of Fig. 4A or 4C), the signal output to the switching regulator (for example, the switching regulator 430 of Fig. 4A or 4C) is a long path. Distortion may occur due to inductance according to (e.g. 5cm distance). The second signal 720 cannot track the first signal 710 due to distortion due to inductance. In the present invention, the transmission circuit (for example, the first transmission circuit 310 or the second transmission circuit 320 of FIG. 3) is provided with a linear regulator (eg, the first linear regulator 313 and the second linear regulator 323 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, there is no distortion due to inductance, so that the first signal 710 can be traced.

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

According to an embodiment, an antenna capable of transmitting may be present in an electronic device (eg, the electronic device 101 of FIG. 1 ). For example, an electronic device for 4G may generally transmit an RF signal to a base station using an antenna under the electronic device. However, in order to increase the uplink T-put (throughput), the 4G electronic device is ULCA (uplink carrier aggregation), and the 5G electronic device is 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, not only the antenna at the bottom of the electronic device but also the antenna at the top of the electronic device must be used. According to an embodiment, several RF signals may be transmitted using only the lower antenna, but it is difficult to satisfy the 3GPP spurious spec due to parasitic components such as intermodulation distortion (IMD)/harmonic, and sensitivity deterioration occurs. I can. Accordingly, in the electronic device, for upper and lower transmission (Tx), the ET modulator and the transmission circuit as shown in FIGS. 8 to 10 may be disposed at the upper and lower ends of the electronic device in various ways.

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, in FIG. 6B) in a transmission circuit (eg, the transmission circuit 310 in FIG. 6B) (hereinafter referred to as “first type transmission circuit”). It may be configured to include 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, it is necessary to support ULCA/ENDC 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. Even in scenarios, it is possible to implement a minimum ET modulator without any distance limitation between the ET modulator and the transmission circuit, and according to the use of a simple ET modulator (eg, type 1 ET modulator 430), size, mounting area, unit cost, or circuit arrangement (Or it can have an effect on the degree of freedom of design.

Hereinafter, in describing FIGS. 8 to 9, a switching regulator (eg, switching of FIG. 4B or 6B ), such as an ET modulator (eg, 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), such as an ET modulator of an existing structure (eg, the ET modulator 400 of FIG. 4A or 6A). Alternatively, an ET modulator including 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 called “2nd type ET modulator”. Likewise, hereinafter, like the transmission circuit (eg, the transmission circuit 310 of FIG. 6B) according to various embodiments, a linear regulator (eg, the linear regulator 313 of FIG. 6B) and a comparator (eg, the comparator of FIG. 6B) ( 420)) is referred to as a “first type transmission circuit”, and a transmission circuit having an existing structure (eg, the transmission circuit 600 in FIG. 6A) is referred to as a “second type transmission circuit”.

FIG. 8 is a diagram illustrating a configuration diagram of an electronic device according to a first embodiment. Referring to FIG. 8, an electronic device (for example, the electronic device 101 of FIG. 1) according to the first embodiment is a first type. Transmission circuit 1 (810), first type transmission circuit 2 (820), first type ET modulator 1 (830), first type transmission circuit 3 (840), first type transmission circuit 4 (850), first type ET modulator 2 860, a first type transmission circuit 5 870, a first antenna module (eg, the first antenna module 242 in FIG. 2), a second antenna module (eg, a second antenna module in FIG. 2) 244), a third antenna module (eg, the third antenna module 246 in FIG. 2), a fourth antenna module (eg, the fourth antenna module 248 in FIG. 2), and a fifth antenna module 880 It may 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 6B. The first type transmission circuit 1 810 to the first type transmission circuit 5 870 may include a linear regulator (eg, a first linear regulator 313, a second linear regulator 323) or a comparator. Each of the first type transmission circuit 1 810 to the first type transmission circuit 5 870 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 5 870 may be set 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 and 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 to fifth antenna modules 242 to 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 through a network. It 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 the top of the electronic device 101, and the first type ET modulator 2 860 and the first type The type transmission circuit 5 870 may be disposed below 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 not be unreasonable in providing an envelope signal even if the distance from the first type transmission circuit 1 810 and the first type transmission circuit 2 820 is increased. For example, since the final envelope signal is output from a linear regulator included in the first type transmission circuit 1 810 and the first type transmission circuit 2 820, signal distortion may not occur.

Conventionally, when the frequency band widens or the distance between the ET modulator (e.g., a second type ET modulator) and the transmission circuit increases, due to distortion of the envelope output signal of the ET modulator, at least one ET modulator per two transmission circuits Each may be required. The electronic device 101 according to the first embodiment includes a linear regulator 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. Even if the distance between the type 1 ET modulator) and the transmission circuit (for example, the first type transmission circuit) increases, there is no distortion of the envelope output signal of the ET modulator, and thus a circuit can be configured with a small number of ET modulators.

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

Referring to FIG. 9, the 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. ET modulator 910, second type transmission circuit 1 (920), second type transmission circuit 2 (930), first type ET modulator 830, first type transmission circuit 3 (940), first antenna module ( Example: the first antenna module 242 of FIG. 2, a second antenna module (eg, the second antenna module 244 of FIG. 2), 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.

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 6B. It may be (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 (e.g., a first linear regulator 313, a 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 set 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 a comparator, and 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 is a linear regulator (e.g., the linear regulator 410 of FIG. 4A, a comparator (e.g., the comparator 420 of FIG. 4A)), and a switching regulator (e.g., the switching regulator 430 of 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 and the switching regulator 430 of FIG. 4B ). The first type ET modulator 830 may mean the ET modulator 450 of FIG. 4B.

The first antenna module 242 to the fifth antenna module 880 includes 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. The first to fifth transmission signals amplified in circuit 2 930 may be transmitted to the base station through a network.

According to various embodiments, the first type transmission circuit 1 810 and the first type transmission circuit 2 820 are disposed on the top of the electronic device 101, and the first type ET modulator 830 is an electronic device ( 101) can be placed at the bottom. In the present invention, since the linear regulator is 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 below 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 have no difficulty in providing an envelope signal even if the distance from the first type transmission circuit 1 810 and the first type transmission circuit 2 820 is increased. For example, since the final envelope signal is output from a linear regulator included in the first type transmission circuit 1 810 and the first type transmission circuit 2 820, signal distortion may not occur.

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. The electronic device 101 according to the second embodiment has a wider frequency band or a distance between the first type ET modulator 830 and the first type transmission circuit 1 810 and the first type transmission circuit 2 820. Even if it is lost, there is no distortion of the envelope output signal of the first type ET modulator 830, and a circuit can be configured 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 a distance limitation between the ET modulator and the transmission circuit, and a simple ET modulator (eg, a first type ET modulator) is used. , In terms of size, unit cost, mounting area, or degree of freedom in circuit arrangement (or design), it can bring gains.

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

Referring to FIG. 10, the 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 transmission circuit 2 (1010), second type transmission circuit 3 (1020), third type ET modulator (1030), second type transmission circuit 4 (1040), first antenna module (example : A first antenna module 242 of FIG. 2), a second antenna module (eg, the second antenna module 244 of FIG. 2), a third antenna module (eg, the third antenna module 246 of FIG. 2) , A fourth antenna module (for example, the fourth antenna module 248 of FIG. 2) and a fifth antenna module 880 may be included.

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 transmission circuit 810 may include a linear regulator (eg, the first linear regulator 313, the second linear regulator 323) or a comparator.

The second type transmission circuit 1 (920), the second type transmission circuit 2 (1010), the second type transmission circuit 3 (1020), or the second type transmission circuit 4 (1040) is a transmission circuit 600 shown in Fig. 6A. ) Can be. For example, the second type transmission circuit 1 (920), the second type transmission circuit 2 (1010), the second type transmission circuit 3 (1020), or the second type transmission circuit 4 (1040) is a linear regulator or comparator. It does not include, but may include a power amplifier (PA, 610), a low noise amplifier (LNA, 620), a filter and duplexer 630, a plurality of MIPI controllers 640, antenna switches (ASW, 650).

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

The third type ET modulator 1030 is a linear regulator (e.g., the linear regulator 410 of FIG. 4C, a comparator (e.g., the comparator 420 of FIG. 4C), and a switching regulator (e.g., 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 is a 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 the 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. When the third type ET modulator 1030 provides an envelope signal to the first type transmission circuit 810 using the multiplexer 480, the second type transmission circuit 1 920 and the second type transmission circuit 4 When providing 1040, it is possible to control the signal input to the switching regulator.

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 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) The output signal of the linear regulator 410 included in may be output to the switching regulator 430 as an input signal.

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 under 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 1 920. For example, since the final envelope signal is output from the linear regulator included in the first type transmission circuit 810 or from the linear regulator included in the third type ET modulator 1030, signal distortion does not occur. I 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, a circuit can be configured with a small number of ET modulators.

As described above, the electronic device 101 according to various embodiments includes a first amplifier 311 set to amplify a first transmission signal, and an yen 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 a first voltage to the first amplifier 311 based on a bellow, a second amplifier 321 set 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 A 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, and the control circuit 330 , When transmitting the first transmission signal 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 Thus, a third voltage is supplied to the first amplifier 311 using the switching regulator 340 or 430, and the second transmission signal is transmitted to an external electronic device through the second transmission circuit 320. In this case, a fourth voltage is applied to the second amplifier using the switching regulator 340 or 430 based on an envelope corresponding to the third frequency band lower than the second designated frequency band of the second transmission signal. It can be supplied to (321).

According to various embodiments, the first transmission circuit 310 further includes a first comparator for comparing the first voltage and the third voltage, and the second transmission circuit 320 is A second comparator for 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), the second voltage may be controlled such 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 regulate and compensate for noise generated by the switching regulator 340 or 430.

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 ( The voltage input to 340 or 430 may be controlled.

As described above, the electronic device 101 according to various embodiments includes a first amplifier 311 set to amplify a first transmission signal, and an yen 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 bellow, and 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), and when transmitting the first transmission signal to an external electronic device through the first transmission circuit 310, the control circuit 330 transmits the first envelope signal to the ET modulator 450 ) To the first amplifier 311, and when transmitting the second transmission signal to an external electronic device through the second transmission circuit 320, the second transmission signal output from the ET modulator 450 The 2 envelope signal 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 includes 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 ( The second envelope signal generated by a high frequency signal output from 323 and a 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, and the second transmission circuit 320 further includes a second linear regulator 323, and the The control circuit 330 includes the second envelope signal generated by a high frequency signal output from the second linear regulator 323 and a low frequency signal output from the switching regulator 340 or 430. It can be provided as (321).

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 is , By controlling the multiplexer 480, a signal input to the switching regulator 340 or 430 may be controlled.

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 transmitted to the switching regulator 340. Alternatively, the multiplexer 480 may be controlled to output as an input signal of the 430.

According to various embodiments, the ET modulator 450 further includes a second linear regulator 323, and the control circuit 330 amplifies a 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 set to amplify a first transmission signal, and an yen 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 a first voltage to the first amplifier 311 based on a bellow, a second amplifier 321 set to amplify a second transmission signal ), the second transmission circuit 320, the first amplifier 311 and the second amplifier 321 are electrically connected to the envelope corresponding to the second designated frequency band of the second transmission signal. Based on an envelope tracking (ET) modulator 450 including a second linear regulator 323 set to supply a second voltage to the second amplifier 321, and a control circuit 330, the control circuit 330, when transmitting the first transmission signal to an external electronic device through the first transmission circuit 310, corresponding to a third frequency band lower than the first designated frequency band of the first transmission signal Based on the envelope, a third voltage is supplied to the first amplifier 311 using the ET modulator 450, and the second transmission signal is transmitted to an external electronic device through the second transmission circuit 320. When transmitting, a fourth voltage is applied to the second amplifier 321 using the ET modulator 450 based on an envelope corresponding to the third frequency band lower than the second designated frequency band of the second transmission signal. ).

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. By using, the fourth voltage may be supplied to the first amplifier 311, and the fourth voltage may 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 for comparing the first voltage and the third voltage, and the ET modulator 450 includes the second voltage and the second voltage. It may include a second comparator for comparing 4 voltages.

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 A signal input to the switching regulator 340 or 430 may be controlled 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 transmitted 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, a 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 at 340 or 430 may be regulated and compensated.

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, for example, a communication processor (for example, the processor 120 of Figure 2, the first communication processor 212, or the second communication processor 214), RFIC ( Example: The first RFIC 222 of FIG. 2, or the second RFIC 224), a wireless communication module (eg, a wireless communication module 192 of FIG. 1 or 2), or an ET DAC. It may mean a generic concept including a circuit that controls wireless communication.

According to an embodiment, the electronic device 101 applies a first voltage based on a first amplifier 311 set to amplify a first transmission signal and an envelope corresponding to a first designated frequency band of the first transmission signal. The first transmission circuit 310 including the first linear regulator 313 set to be supplied to the first amplifier 311, the second amplifier 321 set to amplify the second transmission signal, and the 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 the second designated frequency band may be included. According to an 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, the ET modulator 450 may include a switching regulator 340 or 430. According to an embodiment, the first transmission circuit 310 includes a first comparator for comparing the first voltage and the third voltage, and the second transmission circuit 320 is It may contain 2 comparators. According to an embodiment, the first linear regulator 313 controls the first voltage so that the first voltage tracks the envelope corresponding to the first designated frequency band, and noise generated by the switching regulator 340 or 430 Can be regulated to compensate. According to an embodiment, the second linear regulator 323 controls the second voltage so that the second voltage tracks the envelope corresponding to the second designated frequency band, and noise generated by the switching regulator 340 or 430 Can be regulated to compensate.

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

In operation 1103, when the transmission signal is the first transmission signal (for example, “Yes” in operation 1103), in operation 1105, the control circuit 330 is The first transmission signal may be supplied to the first amplifier 311 based on the bellow. According to an embodiment, when the control circuit 330 transmits the first transmission signal to an 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 The third voltage may be supplied to the first amplifier 311 using the switching regulator 340 or 430 based on the envelope corresponding to.

In operation 1103, when the transmission signal is a second transmission signal (for example, “No” in operation 1103), in operation 1107, the control circuit 330 corresponds to a frequency band lower than the designated frequency band of the second transmission signal. The second transmission signal may be supplied to the 22nd amplifier 321 based on the bellop. 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. The fourth voltage may be supplied to the second amplifier 321 using the switching regulator 340 or 430 based on the envelope corresponding to.

Various embodiments of the present invention disclosed in the present specification and drawings are merely provided with specific examples to easily explain the technical content of the present invention and to aid 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 that all changes or modified forms derived based on the technical idea of the present invention in addition to the embodiments disclosed herein are included in the scope of the present invention.

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 (19)

In a portable communication device,
antenna;
A communication chip including a linear regulator and an amplifier therein; The amplifier is operatively connected with the linear regulator and the antenna, and
A switching regulator disposed outside the communication chip and operatively connected to the linear regulator,
The linear regulator outputs a voltage corresponding to an envelope of the switching regulator and an input radio-frequency signal,
Wherein the amplifier is configured to amplify the input radio frequency signal.
The method of claim 1, wherein the communication chip,
Portable communication device comprising another amplifier for amplifying another input radio frequency signal received through the antenna.
The method of claim 2,
The amplifier is a power amplifier, and the other amplifier is a low-noise amplifier.
The method of claim 1, wherein the switching regulator and the communication chip,
A portable communication device disposed such that a first electric path between the switching regulator and the linear regulator is longer than a second electric path between the linear regulator and the amplifier.
The method of claim 1,
Further comprising an envelope tracking digital-analog converter (ET DAC) for controlling the linear regulator to provide the voltage to the amplifier,
The envelope tracking digital-analog converter is included in the communication chip.
The method of claim 5, wherein the switching regulator and the communication chip,
The portable communication device is arranged such that a first electrical path between the switching regulator and the linear regulator is longer than a second electrical path between the envelope tracking digital-analog converter and the linear regulator.
The method of claim 1,
A portable communication device further comprising another communication chip including another linear regulator operatively connected to the switching regulator.
The method of claim 7, wherein the switching regulator,
A portable communication device that is arranged such that a first electrical path between the switching regulator and the other communication chip is longer than a second electrical path between the switching regulator and the communication chip.
The method of claim 7,
The communication chip is disposed adjacent to a lower end of the portable communication device than an upper end of the portable communication device,
The other communication chip is disposed closer to the upper end of the portable communication device than the lower end of the portable communication device.
The method of claim 1,
A first ET modulator (envelope tracking modulator) including the switching regulator without the linear regulator being disposed;
A second ET modulator including another linear regulator and another switching regulator; And
The portable communication device further comprises another communication chip operatively connected to the second ET modulator.
The method of claim 1,
The input radio frequency signal has a first frequency,
The envelope is a portable communication device having a second frequency equal to or lower than the first frequency.
Communication mounted on a circuit board of the electronic device for amplifying an input signal corresponding to a radio-frequency signal to be transmitted through an antenna of the electronic device or amplifying a radio frequency signal received through the antenna In the chip,
An amplifier for receiving an input signal; -A radio frequency signal to be transmitted through the antenna corresponds to the input signal of the amplifier, and
And a linear regulator providing a voltage corresponding to the envelope of the input signal to the amplifier,
The linear regulator and the amplifier are disposed inside the communication chip, and the switching regulator is not disposed inside the communication chip,
The amplifier is a communication chip configured to amplify the input signal.
The method of claim 12,
Communication chip further comprising an envelope tracking digital-analog converter (ET DAC) for controlling the linear regulator to provide the voltage to the amplifier.
The method of claim 13,
A communication chip set such that a first electrical path between the linear regulator and the amplifier and a second electrical path between the linear regulator and the envelope tracking digital-analog converter are shorter than a third electrical path between the linear regulator and the switching regulator.
The method of claim 12,
A communication chip further comprising a low noise amplifier for amplifying another radio frequency signal received through an antenna outside the communication chip.
In the portable communication device,
antenna;
Switching regulator;
An amplifier operatively connected to the switching regulator and amplifying an input radio frequency signal;
A linear regulator operatively connected to the switching regulator and the amplifier; And
An envelope tracking digital-analog converter that controls the linear regulator to provide a voltage corresponding to an envelope of the input radio frequency signal to the amplifier,
A portable communication device configured such that a first electrical path between the linear regulator and the switching regulator is longer than a second electrical path between the linear regulator and the amplifier.
The method of claim 16,
The first electrical path is set to be longer than a third electrical path between the linear regulator and the envelope tracking digital-analog converter.
The method of claim 16,
The amplifier, the linear regulator and the envelope tracking digital-analog converter are disposed inside the same communication chip,
The switching regulator is a portable communication device disposed outside the same communication chip.
The method of claim 16,
The switching regulator is a portable communication device disposed in an envelope tracking modulator.

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