CN117544194A - Electronic equipment - Google Patents

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Publication number
CN117544194A
CN117544194A CN202311649795.4A CN202311649795A CN117544194A CN 117544194 A CN117544194 A CN 117544194A CN 202311649795 A CN202311649795 A CN 202311649795A CN 117544194 A CN117544194 A CN 117544194A
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CN
China
Prior art keywords
power
frequency band
power supply
electronic device
communication mode
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Pending
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CN202311649795.4A
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Chinese (zh)
Inventor
罗培伟
黄�俊
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN202311649795.4A priority Critical patent/CN117544194A/en
Publication of CN117544194A publication Critical patent/CN117544194A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)

Abstract

The present application relates to an electronic device. The electronic device comprises a plurality of power amplifiers, a power management chip and a power supply circuit; when the electronic equipment is in a first communication mode, the power management chip is used for supplying power to a power amplifier corresponding to a first current working frequency band of the electronic equipment, wherein the first current working frequency band is a working frequency band in a first communication mode or a working frequency band in a second communication mode; and under the condition that the electronic equipment is in the second communication mode, the power management chip is used for supplying power to the power amplifier corresponding to the second current working frequency band of the first communication mode of the electronic equipment, and the power supply circuit is used for supplying power to the power amplifier corresponding to the third current working frequency band of the second communication mode of the electronic equipment. The electronic equipment can reduce the cost of supplying power to the power amplifier.

Description

Electronic equipment
Technical Field
The present disclosure relates to the field of electronic devices, and in particular, to an electronic device.
Background
For electronic devices supporting 5G communication technology, a dual connectivity mode of a 4G signal and a 5G signal is generally adopted in a Non-independent Networking (NSA) mode. At present, a plurality of power amplifiers with different frequency bands can be arranged in an electronic device and used for processing a 4G signal and a 5G signal so as to realize the communication quality of double emission of the 4G signal and the 5G signal.
In the related art, a plurality of power management chips are used to supply power to each power amplifier, however, the cost caused by using a plurality of power management chips is high.
Disclosure of Invention
In view of the above, it is necessary to provide an electronic device capable of reducing the cost of power supply.
In a first aspect, the present application provides an electronic device. The electronic device comprises a plurality of power amplifiers, a power management chip and a power supply circuit; when the electronic equipment is in a first communication mode, the power management chip is used for supplying power to a power amplifier corresponding to a first current working frequency band of the electronic equipment, wherein the first current working frequency band is a working frequency band in a first communication mode or a working frequency band in a second communication mode; and under the condition that the electronic equipment is in the second communication mode, the power management chip is used for supplying power to the power amplifier corresponding to the second current working frequency band of the first communication mode of the electronic equipment, and the power supply circuit is used for supplying power to the power amplifier corresponding to the third current working frequency band of the second communication mode of the electronic equipment.
In the above electronic device, the electronic device includes a plurality of power amplifiers, a power management chip, and a power supply circuit. The power management chip is used for supplying power to a power amplifier corresponding to a first current working frequency band of the electronic equipment under the condition that the electronic equipment is in a first communication mode, wherein the first current working frequency band is a working frequency band under a first communication mode or a working frequency band under a second communication mode; that is, in the first communication mode, a single power amplifier may be powered with the power management chip. When the electronic device is in the second communication mode, the power management chip is used for supplying power to the power amplifier corresponding to the second current working frequency band of the first communication mode, and the power supply circuit is used for supplying power to the power amplifier corresponding to the third current working frequency band of the second communication mode, that is, in the second communication mode, for example, in the NSA mode, the power management chip is used for supplying power to the single power amplifier corresponding to the second current working frequency band, and meanwhile, the power supply circuit is used for supplying power to the power amplifier corresponding to the other third current working frequency band. Because the cost of the power supply circuit is far lower than that of the power management chip, the power supply is realized by only using the power management chip or by using the power supply circuit and the power management chip, and the cost of the electronic equipment for realizing the power supply process can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an electronic device in one embodiment;
FIG. 2 is a schematic diagram of another electronic device in one embodiment;
FIG. 3 is a schematic diagram of another electronic device in one embodiment;
FIG. 4 is a schematic diagram of another electronic device in one embodiment;
FIG. 5 is a schematic diagram of another electronic device in one embodiment;
FIG. 6 is a schematic diagram of another electronic device in one embodiment;
fig. 7 is an internal structural diagram of an electronic device in one embodiment.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that numerous specific details are set forth in the following description in order to provide a thorough understanding of the present application, but that the present application can be practiced in many other ways other than those described herein, and that persons skilled in the art will be able to make similar modifications without departing from the spirit of the present application, so that the present application is not limited to the specific embodiments disclosed below.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the present application. Both the first resistor and the second resistor are resistors, but they are not the same resistor.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
It is to be understood that in the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", etc., if the connected circuits, modules, units, etc., have electrical or data transfer between them.
It is understood that "at least one" means one or more and "a plurality" means two or more. "at least part of an element" means part or all of the element.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Also, the term "and/or" as used in this specification includes any and all combinations of the associated listed items.
At present, two PA power supplies are needed to be included in a 5G radio frequency scheme of a platform such as a high pass or an MTK for a mobile phone, mainly because an NSA networking mode exists in 5G communication, in the NSA mode, one 4G PA and one 5G PA are required to be driven to work simultaneously, and in order to ensure the independence of the two PA works, power supplies for driving are required to be provided for the two PA respectively. In the related art, a plurality of power management chips are used to supply power to each power amplifier, however, the cost caused by using a plurality of power management chips is high.
In view of this, in an embodiment of the present application, there is provided an electronic device including a plurality of power amplifiers, a power management chip, and a power supply circuit. Under the condition that the electronic equipment is in a first communication mode, the power management chip is used for supplying power to a power amplifier corresponding to a first current working frequency band of the electronic equipment, wherein the first current working frequency band is a working frequency band under a first communication standard or a working frequency band under a second communication standard. And under the condition that the electronic equipment is in the second communication mode, the power management chip is used for supplying power to a power amplifier corresponding to a second current working frequency band of the first communication mode of the electronic equipment, and the power supply circuit is used for supplying power to a power amplifier corresponding to a third current working frequency band of the second communication mode of the electronic equipment. Because the cost of the power supply circuit is far lower than that of the power management chip, the power supply is realized by only using the power management chip or by using the power supply circuit and the power management chip, and the cost of the electronic equipment for realizing the power supply process can be effectively reduced.
In one embodiment, as shown in fig. 1, a schematic structural diagram of an electronic device provided in an embodiment of the present application is shown. The electronic device includes a plurality of power amplifiers, a power management chip, and a power supply circuit. It should be noted that fig. 1 is only taken as an example, and the power amplifiers 1 and 2 are not limited to this application.
And under the condition that the electronic equipment is in the first communication mode, the power management chip is used for supplying power to a power amplifier corresponding to a first current working frequency band of the electronic equipment, wherein the first current working frequency band is a working frequency band in a first communication mode or a working frequency band in a second communication mode.
And under the condition that the electronic equipment is in the second communication mode, the power management chip is used for supplying power to the power amplifier corresponding to the second current working frequency band of the first communication mode of the electronic equipment, and the power supply circuit is used for supplying power to the power amplifier corresponding to the third current working frequency band of the second communication mode of the electronic equipment.
The electronic device may be, but not limited to, various smart phones, personal computers, notebook computers, tablet computers, internet of things devices and portable wearable devices, and the internet of things devices may be smart speakers, smart televisions, smart vehicle devices and the like. The portable wearable device may be a smart watch, smart bracelet, headset, or the like. It is understood that the electronic device may be any device that may communicate based on a first communication mode and a second communication mode, and is not fully illustrated herein.
An electronic device includes a single power management chip and a single power supply circuit, as well as a plurality of power amplifiers.
The electronic device being in the first communication mode may refer to a case where the electronic device communicates based on the first communication mode. In the first communication mode, the electronic device performs communication based on a single communication signal, and at this time, the electronic device only works in a single frequency band, that is, works in a first current working frequency band, and correspondingly, only needs a power amplifier corresponding to the first current working frequency band to perform power amplification processing on the communication signal.
The transceiver of the electronic device outputs a first cellular signal in a first current operating frequency band, and the power amplifier corresponding to the first current operating frequency band performs power amplification processing on the first cellular signal output by the transceiver, and then the first cellular signal after the power amplification processing is transmitted to an antenna of the electronic device for transmission. The power amplification processing is performed through the power amplifier corresponding to the first current working frequency band, so that the communication quality of the electronic equipment in the first communication mode can be ensured.
Wherein, the working frequency ranges of the plurality of power amplifiers are different. For example, the operating frequency band of the power amplifier 1 is frequency band 1, and the operating frequency band of the power amplifier 2 is frequency band 2. When the current working frequency band of the electronic equipment is the first current working frequency band, and the corresponding first cellular signal output by the transceiver is in the first current working frequency band, if the first current working frequency band corresponds to the frequency band 1, the power amplifier 1 is used for carrying out power amplification processing on the first cellular signal, and correspondingly, the power management chip is used for supplying power to the power amplifier 1, and at the moment, power supply to other power amplifiers is not needed.
The first current working frequency band is a working frequency band under a first communication system or a working frequency band under a second communication system. That is, in the first communication mode, the power management chip may be configured to supply power to a power amplifier of the plurality of power amplifiers that corresponds to the first current operating frequency band of the electronic device, regardless of whether the electronic device is currently communicating based on the first communication system or based on the second communication system.
Optionally, the first communication system is 5G cellular communication, and the second communication system is 4G cellular communication. That is, the first cellular signal may be a 5G cellular signal or a 4G cellular signal.
Therefore, when the electronic equipment works in a single frequency band, the power supply of the power amplifier which works currently can be realized by only using the power management chip.
The electronic device being in the second communication mode may refer to a case where the electronic device communicates based on the second communication mode. In the second communication mode, the electronic device needs to communicate based on a plurality of communication signals, and at this time, the electronic device needs to work in a plurality of frequency bands, that is, in a second current working frequency band corresponding to the first communication system and a third current working frequency band corresponding to the second communication system. Correspondingly, a plurality of power amplifiers are required to work, namely, a power amplifier corresponding to a second current working frequency band is required to perform power amplification processing on one communication signal, and a power amplifier corresponding to a third current working frequency band is required to perform power amplification processing on the other communication signal.
The electronic device transceiver outputs a second cellular signal in a second current working frequency band, and the power amplifier corresponding to the second current working frequency band performs power amplification processing on the second cellular signal; and the transceiver of the electronic equipment outputs a third cellular signal in a third current working frequency band, and the power amplifier corresponding to the third current working frequency band performs power amplification processing on the third cellular signal.
Wherein the second current operating frequency band is different from the third current operating frequency band.
Alternatively, as described above, the first communication system is 5G cellular communication, and the second communication system is 4G cellular communication. That is, the second cellular signal may be a 5G cellular signal and the third cellular signal may be a 4G cellular signal.
Optionally, the first communication system is 4G cellular communication, and the second communication system is 5G cellular communication. That is, the second cellular signal may be a 4G cellular signal and the third cellular signal may be a 5G cellular signal.
Since two power amplifiers are required to operate to amplify two cellular signals respectively, to ensure the independence of the operation of each power amplifier, the two power amplifiers need to be individually powered. In the embodiment of the application, the power management chip is utilized to supply power to the power amplifier corresponding to the second current working frequency band of the electronic equipment in the first communication mode in the plurality of power amplifiers, and the power supply circuit is utilized to supply power to the power amplifier corresponding to the third current working frequency band of the electronic equipment in the second communication mode in the plurality of power amplifiers, so that the communication quality of the electronic equipment in the second communication mode is ensured.
The rear stages of the power management chips are connected with batteries so as to supply power for the corresponding power amplifiers.
Among other things, power management chips (power ICs) are responsible for the conversion, distribution, detection, and other power management of electrical energy in electronic device systems. It is primarily responsible for converting supply voltage and current into power that can be used by a load such as a microprocessor, sensor, etc. Therefore, the cost of the power management chip is relatively high.
The power supply circuit in the embodiment of the application can be only used for converting the power supply voltage into the power supply voltage of the power amplifier needing to be supplied so as to supply power for the corresponding power amplifier, so that the power supply circuit has low integration complexity and low cost compared with a power management chip.
Based on the above, in the second communication mode, only the power management chip is used to supply power to the power amplifier corresponding to the second current operating frequency band, and the power supply circuit is used to supply power to the power amplifier corresponding to the third current operating frequency band. In this way, the power amplifier of the electronic device operating in the first communication mode and the second communication mode can be powered at low cost by using the single power management chip and the power supply circuit without integrating a plurality of power management chips in the electronic device.
In the above electronic device, the electronic device includes a plurality of power amplifiers, a power management chip, and a power supply circuit. The power management chip is used for supplying power to a power amplifier corresponding to a first current working frequency band of the electronic equipment under the condition that the electronic equipment is in a first communication mode, wherein the first current working frequency band is a working frequency band under a first communication mode or a working frequency band under a second communication mode; that is, in the first communication mode, a single power amplifier may be powered with the power management chip. When the electronic equipment is in the second communication mode, the power management chip is used for supplying power to the power amplifier corresponding to the second current working frequency band of the first communication mode, the power supply circuit is used for supplying power to the power amplifier corresponding to the third current working frequency band of the second communication mode, namely, in the second communication mode, the power management chip is used for supplying power to the single power amplifier corresponding to the second current working frequency band, and meanwhile, the power supply circuit is used for supplying power to the power amplifier corresponding to the other third current working frequency band. Because the cost of the power supply circuit is far lower than that of the power management chip, the power supply is realized by only using the power management chip or by using the power supply circuit and the power management chip, and the cost of the electronic equipment for realizing the power supply process can be effectively reduced.
As described above, the electronic device operates in a single band in the first communication mode. The electronic device operates in a plurality of frequency bands in a second communication mode. Whereas in the 5G radio architecture there is a SA mode and a NSA mode.
Wherein SA is an abbreviation of Standard, is a 5G networking mode, and means independent networking, namely a core network is matched with a base station. It can be understood that the 5G technology is used from the core network to the base station, which brings about a better low-latency experience. In SA mode, the electronic device may communicate based solely on 5G cellular signals.
NSA is one of 5G networking modes, also called as non-independent networking, and NSA is a one-to-many networking mode, i.e. a core network with two base stations. The 5G networking is arranged in the 4G infrastructure, and the 4G base station and the 5G base station at the base station side coexist. It can be understood that the 4G core network is kept unchanged, and the 5G network is implemented by changing the base station to the 5G base station. In NSA mode, the electronic device may enable communication based on both 4G cellular signals and 5G cellular signals.
Thus, in an alternative embodiment of the present application, the first communication mode is SA mode and the second communication mode is NSA mode.
Thus, in NSA mode, the power management chip can be used to supply power to the power amplifier for amplifying the 5G cellular signal in the electronic device, and the power supply circuit is used to supply power to the power amplifier for amplifying the 4G cellular signal in the electronic device, so as to achieve a balance between higher communication quality and lower cost.
In one embodiment, as shown in fig. 2, a schematic structural diagram of another electronic device provided in an embodiment of the present application is shown. The power management chip is connected with the plurality of first power amplifiers through a first power supply path, the power management chip is connected with the plurality of second power amplifiers through a second power supply path, and the power supply circuit is connected with the plurality of second power amplifiers through a third power supply path. It should be noted that, in fig. 2, a plurality of power amplifiers including the power amplifier 1, the power amplifier 2, the power amplifier 3, and the power amplifier 4 are taken as an example, and here, a plurality of first power amplifiers including the power amplifier 1 and the power amplifier 2 are exemplified, that is, any one of the power amplifier 1 and the power amplifier 2 may be used as the first power amplifier; the plurality of second power amplifiers may include the power amplifier 3 and the power amplifier 4, that is, any one of the power amplifier 3 and the power amplifier 4 may be used as the second power amplifier.
The first power amplifiers correspond to different working frequency bands of the first communication system, and the second power amplifiers correspond to different working frequency bands of the second communication system.
In one embodiment, the plurality of first power amplifiers includes a power amplifier (e.g., power amplifier 1) having an operating frequency band of a first frequency band and a power amplifier (e.g., power amplifier 2) having an operating frequency band of a second frequency band, the plurality of second power amplifiers being a power amplifier (e.g., power amplifier 2) having an operating frequency band of a third frequency band and a power amplifier (e.g., power amplifier 4) having an operating frequency band of a fourth frequency band. The frequency ranges of the first frequency band, the second frequency band, the third frequency band and the fourth frequency band can be sequentially decreased.
Specifically, the frequency band division of 5G and 4G can be shown in table 1.
TABLE 1 frequency band dividing table
Taking the first communication system as 5G cellular communication and the second communication system as 4G cellular communication as an example, based on table 1, the working frequency band of the first communication system includes N77, N78, and N79, and the working frequency band of the power amplifier 1 in the corresponding plurality of first power amplifiers may be an ultra-high frequency band. The working frequency bands of the first communication system include N7, N30, N38, N40, N41, etc., and the working frequency band of the power amplifier 2 in the corresponding plurality of first power amplifiers may be a high frequency band. The working frequency band of the second communication system includes B1, B2, B3, etc., and in the corresponding plurality of second power amplifiers, the working frequency band of the power amplifier 3 may be an intermediate frequency band. The working frequency band of the second communication system includes B5, B8, etc., and in the corresponding plurality of second power amplifiers, the working frequency band of the power amplifier 4 may be a low frequency band.
Since in NSA mode, 5G cellular signals typically correspond to transmission based on the ultra-high frequency band or the high frequency band, whereas 4G cellular signals typically correspond to transmission based on the intermediate frequency band or the low frequency band. For example, the electronic device needs to support a band combination of B3/39 and n41, or a band combination of B1/3/5/8 and n78, or a band combination of B1/3 and n77, or a band combination of B1-3 and n 78.
Thus, in an alternative embodiment of the present application, the first frequency band is a UHB frequency band, the second frequency band is a HB frequency band, the third frequency band is a MB frequency band, and the fourth frequency band is a LB frequency band. In this way, the power management chip can be used for supplying power to the first power amplifier which is used for amplifying the 5G cellular signal and works in the UHB frequency band or the HB frequency band, and the power supply circuit can be used for supplying power to the second power amplifier which is used for amplifying the 4G cellular signal and works in the MB frequency band or the LB frequency band.
In one embodiment, the second power supply path and the third power supply path have line multiplexing.
The power management chip is connected with the plurality of second power amplifiers through the second power supply path, and the power supply circuit is connected with the plurality of second power amplifiers through the third power supply path, that is, the power management chip and the power supply circuit are connected with the second power amplifiers, so that part of circuits can be multiplexed by the second power supply path and the third power supply path, and therefore, the circuit layout space of the electronic equipment can be further saved, and the cost can be saved.
In one embodiment, the power management chip is connected to the power supply ports of the first power amplifiers through first power supply paths, respectively. The power management chip is respectively connected with the power supply ports of the second power amplifiers through second power supply paths. The power supply circuit is respectively connected with the power supply ports of the second power amplifiers through third power supply paths.
Illustratively, a first end of the first power supply path is connected to a first output port of the power management chip, a second end of the first power supply path is connected to a power supply port UHB VCC of the first power amplifier in the UHB band, and a third end of the first power supply path is connected to a power supply port HB VCC of the first power amplifier in the HB band.
Illustratively, a first end of the second power supply path is connected to the second output port of the power management chip, a second end of the second power supply path is connected to the power supply port MB VCC of the second power amplifier in the MB frequency band, and a third end of the second power supply path is connected to the power supply port LB VCC of the second power amplifier in the LB frequency band.
Illustratively, a first end of the third power supply path is connected to the output port of the power supply circuit, a second end of the third power supply path is connected to the power supply port MB VCC of the second power amplifier in the MB band, and a third end of the third power supply path is connected to the power supply port LB VCC of the second power amplifier in the LB band.
In an alternative embodiment of the present application, among a plurality of power amplifiers of an electronic device, a part of the power amplifiers may be integrated into one power amplifier, that is, the integrated power amplifier may operate in a plurality of frequency bands. For example, the power amplifier 2 in the HB band and the power amplifier 3 in the MB band may be the same power amplifier, and the operating band of the power amplifier is the high-frequency band in the MHB, covering the HB band and the MB band. In this way, the internal space of the electronic device can be saved.
It will be appreciated that if a portion of the power amplifier may be integrated as one power amplifier, the integrated power amplifier may include multiple supply ports, such as HB VCC and MB VCC in the above embodiments.
In an alternative embodiment of the present application, since each power amplifier in the electronic device may also be used to amplify other communication signals, each power amplifier may further include other types of power supply ports for connecting with other power supply circuits to supply power to the power amplifier when the electronic device transmits other communication signals. For example, the second power amplifier of the LB frequency band may further include a GSM VCC port, through which the electronic device supplies power to the 2G cellular signal using other power supply circuits when the second power amplifier is used for amplifying the signal. Wherein GSM is an acronym for Global System for Mobile Communications.
In one embodiment, when the electronic device is in the first communication mode, the first power supply path and the second power supply path are both conductive, and the third power supply path is non-conductive, so that the power management chip supplies power to the power amplifier corresponding to the first current operating frequency band through the first power supply path or the second power supply path.
At this time, since the first power supply path and the second power supply path are both turned on, the power management chip is connected to each power amplifier, and one of the plurality of power amplifiers works, the power management chip can be used to supply power to the power amplifier corresponding to the first current working frequency band that is working.
Optionally, a transceiver in the electronic device is connected to the power management chip through a MIPI (Mobile Industry Processor Interface) bus, and the electronic device controls the power management chip to supply power to the power amplifier corresponding to the first current working frequency band under working through the transceiver.
In one embodiment, when the electronic device is in the second communication mode, the first power supply path and the third power supply path are both conductive, and the second power supply path is non-conductive, so that the power management chip supplies power to the power amplifier corresponding to the second current operating frequency band through the first power supply path, and the power supply circuit supplies power to the power amplifier corresponding to the third current operating frequency band through the third power supply path.
At this time, since the second power supply path is not turned on and the first power supply path is turned on, the power management chip only needs to supply power to the power amplifier corresponding to the second current operating frequency band, which is being operated, of the plurality of first power amplifiers. And meanwhile, the third power supply passage is conducted, and the power supply circuit can be utilized to supply power to the power amplifier corresponding to the third current working frequency band in the plurality of second power amplifiers.
Optionally, the electronic device may control, via the transceiver, the power supply circuit to supply power to the power amplifier corresponding to the third current operating frequency band.
In one embodiment, as shown in fig. 3, a schematic structural diagram of another electronic device provided in an embodiment of the present application is shown. The electronic device further comprises a switching circuit arranged on the second power supply path and the third power supply path; when the switch circuit is in a first switch state, the second power supply path is conducted, and the third power supply path is not conducted; when the switch circuit is in the second switch state, the second power supply path is not conducted, and the third power supply path is conducted.
That is, when the switching circuit is in the first switching state, the power supply circuit and the second power amplifier are connected through the switching circuit, but the power management chip and the second power amplifier are not connected, so that the power management chip and the power supply circuit can be used for supplying power to the first power amplifier and the second power amplifier which are working independently, and the communication quality of the electronic equipment is ensured.
Alternatively, the multiplexing circuit described above may refer to a circuit between each second power amplifier and the switching circuit. Due to the arrangement of the switching circuit, short circuit connection between the power supply circuit and the power management chip can be avoided, and normal power supply of each power amplifier is ensured.
In one embodiment, the switching circuit comprises a single-pole double-throw switch, wherein the fixed end of the single-pole double-throw switch is connected with the plurality of second power amplifiers, the first movable end of the single-pole double-throw switch is connected with the power management chip, and the second movable end of the single-pole double-throw switch is connected with the power supply circuit; when the fixed end of the single-pole double-throw switch is connected with the first movable end, the switch circuit is in a first switch state; when the fixed end of the single-pole double-throw switch is connected with the second movable end, the switch circuit is in a second switch state.
Referring to fig. 4, a schematic structural diagram of another electronic device provided in an embodiment of the present application is shown. Here, the fixed end of the switching circuit is connected to the first movable end, the switching circuit is in a first switching state, the second power supply path is conductive, and the third power supply path is non-conductive.
Referring to fig. 5, a schematic structural diagram of another electronic device provided in an embodiment of the present application is shown. Here, the fixed end of the switching circuit is connected to the second movable end, the switching circuit is in the second switching state, the second power supply path is not turned on, and the third power supply path is turned on. At this point, the electronic device may be in NSA mode.
Alternatively, the single pole double throw switch may be connected to a transceiver through which the electronic device controls the connection state of each end of the single pole double throw switch to control the state of the switching circuit.
In the embodiment of the application, the conduction states of the second power supply path and the third power supply path can be rapidly switched by controlling the single-pole double-throw switch, so that the electronic equipment can flexibly utilize the power management chip to supply power to the first power amplifier or the second power amplifier in the first communication mode and the second communication mode, the flexibility of power supply of the electronic equipment is improved, and the single-pole double-throw switch is low in cost, low in integration complexity and convenient to realize.
In one embodiment, the switching circuit comprises a semiconductor switch, and each end of the semiconductor switch is respectively connected with the plurality of second power amplifiers, the power management chip and the power supply circuit; when the semiconductor switch is in a first conduction state, the switch circuit is in a first switch state; when the semiconductor switch is in the second conduction state, the switch circuit is in the second switch state.
In one embodiment, the power supply circuit is a buck circuit; and under the condition that the electronic equipment is in the second communication mode, the voltage reducing circuit is used for reducing the power supply voltage to a target voltage value and supplying power to the power amplifier corresponding to the third current working frequency band based on the target voltage value.
The step-down circuit may be referred to as a BUCK circuit. For example, the BUCK circuit may be configured to convert a first direct current to a second direct current, and the second direct current has a voltage less than the voltage of the first direct current.
In this embodiment of the present application, the step-down circuit is set to reduce the power supply voltage to the target voltage value and then supply power to the power amplifier corresponding to the third current operating frequency band.
Optionally, the target voltage value is a voltage value greater than the maximum power supply voltages respectively corresponding to the plurality of second power amplifiers.
Optionally, the target voltage value is a maximum value of maximum power supply voltages respectively corresponding to the plurality of second power amplifiers.
Therefore, the power supply based on the target voltage value can meet the power supply requirement of any second power amplifier, and each second power amplifier can work normally.
Alternatively, the step-down circuit may include a BUCK chip.
Optionally, the transceiver is connected to the step-down circuit, and the transceiver can control the target voltage value in the step-down circuit to update.
In the embodiment of the application, the voltage reducing circuit can be used for supplying power to the power amplifier corresponding to the third current working frequency band, and the cost of the voltage reducing circuit is far lower than that of the power management chip, but the realized performance and the power management chip are all the time, so that the power supply performance of the electronic equipment can be ensured and the cost is saved.
For ease of understanding, the structure of the electronic device provided in the embodiments of the present application will be described in the following with a complete embodiment. Referring to fig. 6, a schematic structural diagram of another electronic device provided in an embodiment of the present application is shown.
When the electronic equipment works in a single-frequency band, for example, in an SA mode, the Switch VCC Switch is switched to be in a state of communicating the power management chip QET #0, the MHB PA and the LB PA, at the moment, the electronic equipment can only use the power management chip to supply power to any one of all the PAs, and at the moment, the performance and the power consumption of a radio frequency system of the electronic equipment can be kept at a better level.
When the electronic equipment is in NSA mode, the Switch is switched to a state of communicating the BUCK circuit, the MHB PA and the LB PA, so that power supply of the LB PA and the MB AP is switched to the other BUCK through the VCC Switch. The BUCK is a power IC with fixed voltage, so that the cost is very low, and only about 10% -20% of the power management chip is needed. At this time, taking the 5G cellular signal as n41 frequency band and the 4G cellular signal as B3 frequency band as an example, the electronic equipment performs power amplification processing on the 5G cellular signal by utilizing the MHB PA, and simultaneously utilizes the power management chip to supply power to the MHB PA through the HB VCC port so that the electronic equipment can work in HB frequency band; and the electronic equipment performs power amplification processing on the 4G cellular signal by utilizing the LB PA, and simultaneously supplies power to the LB PA by utilizing the BUCK circuit through a switch and through an LB VCC port.
In one embodiment, an electronic device is provided, which may be a terminal, and an internal structure diagram thereof may be as shown in fig. 7. The electronic device includes a processor, a memory, an input/output interface, a communication interface, a display unit, and an input device. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input/output interface. Wherein the processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the electronic device is used to exchange information between the processor and the external device. The communication interface of the electronic device is used for conducting wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The display unit of the electronic device is used for forming a visual picture, and can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the electronic equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in fig. 7 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the electronic device to which the present application is applied, and that a particular electronic device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In the description of the present specification, reference to the term "some embodiments," "other embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims (10)

1. An electronic device, comprising a plurality of power amplifiers, a power management chip, and a power supply circuit;
when the electronic equipment is in a first communication mode, the power management chip is used for supplying power to a power amplifier corresponding to a first current working frequency band of the electronic equipment, wherein the first current working frequency band is a working frequency band in a first communication mode or a working frequency band in a second communication mode;
and under the condition that the electronic equipment is in a second communication mode, the power management chip is used for supplying power to a power amplifier corresponding to a second current working frequency band of the first communication mode of the electronic equipment, and the power supply circuit is used for supplying power to the power amplifier corresponding to a third current working frequency band of the second communication mode of the electronic equipment.
2. The electronic device of claim 1, wherein the power management chip is connected to a plurality of first power amplifiers through a first power supply path, the power management chip is connected to a plurality of second power amplifiers through a second power supply path, and the power supply circuit is connected to the plurality of second power amplifiers through a third power supply path;
the plurality of first power amplifiers correspond to different working frequency bands of the first communication system, and the plurality of second power amplifiers correspond to different working frequency bands of the second communication system.
3. The electronic device of claim 2, wherein the electronic device comprises a memory device,
when the electronic equipment is in the first communication mode, the first power supply path and the second power supply path are both conducted, and the third power supply path is not conducted, so that the power management chip supplies power to a power amplifier corresponding to the first current working frequency band through the first power supply path or the second power supply path;
and when the electronic equipment is in the second communication mode, the first power supply passage and the third power supply passage are both conducted, and the second power supply passage is not conducted, so that the power management chip supplies power to the power amplifier corresponding to the second current working frequency band through the first power supply passage, and the power supply circuit supplies power to the power amplifier corresponding to the third current working frequency band through the third power supply passage.
4. The electronic device of claim 3, further comprising a switching circuit disposed on the second power supply path and the third power supply path;
when the switch circuit is in a first switch state, the second power supply path is conducted, and the third power supply path is not conducted;
when the switch circuit is in a second switch state, the second power supply path is not conducted, and the third power supply path is conducted.
5. The electronic device of claim 4, wherein the switching circuit comprises a single pole double throw switch, a fixed end of the single pole double throw switch is connected to each of the plurality of second power amplifiers, a first active end of the single pole double throw switch is connected to the power management chip, and a second active end of the single pole double throw switch is connected to the power supply circuit;
when the fixed end of the single-pole double-throw switch is connected with the first movable end, the switch circuit is in the first switch state;
when the fixed end of the single pole double throw switch is connected with the second movable end, the switch circuit is in the second switch state.
6. The electronic device according to any one of claims 2 to 5, wherein the power supply circuit is a step-down circuit; in the case of the electronic device being in the second communication mode,
the step-down circuit is used for reducing the power supply voltage to a target voltage value and supplying power to the power amplifier corresponding to the third current working frequency band based on the target voltage value.
7. The electronic device of claim 6, wherein the target voltage value is a maximum value of maximum supply voltages respectively corresponding to the plurality of second power amplifiers.
8. The electronic device of any of claims 2-5, wherein the plurality of first power amplifiers includes a power amplifier having an operating frequency band of a first frequency band and a power amplifier having an operating frequency band of a second frequency band, the plurality of second power amplifiers being power amplifiers having an operating frequency band of a third frequency band and power amplifiers having an operating frequency band of a fourth frequency band.
9. The electronic device of claim 8, wherein the first frequency band is a UHB frequency band, the second frequency band is a HB frequency band, the third frequency band is a MB frequency band, and the fourth frequency band is a LB frequency band.
10. The electronic device of any one of claims 1-5, wherein the first communication mode is an SA mode and the second communication mode is an NSA mode.
CN202311649795.4A 2023-12-04 2023-12-04 Electronic equipment Pending CN117544194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311649795.4A CN117544194A (en) 2023-12-04 2023-12-04 Electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311649795.4A CN117544194A (en) 2023-12-04 2023-12-04 Electronic equipment

Publications (1)

Publication Number Publication Date
CN117544194A true CN117544194A (en) 2024-02-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311649795.4A Pending CN117544194A (en) 2023-12-04 2023-12-04 Electronic equipment

Country Status (1)

Country Link
CN (1) CN117544194A (en)

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