CN111431634B - Radio frequency power control circuit - Google Patents
Radio frequency power control circuit Download PDFInfo
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- CN111431634B CN111431634B CN202010224135.1A CN202010224135A CN111431634B CN 111431634 B CN111431634 B CN 111431634B CN 202010224135 A CN202010224135 A CN 202010224135A CN 111431634 B CN111431634 B CN 111431634B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
Abstract
The invention provides a radio frequency power control circuit, comprising: the radio frequency power control circuit conducts the first feedback link when conducting radio frequency conduction test so as to reduce the first power of a radio frequency signal from a radio frequency front end input port by a first numerical value time and enable the power of a detection signal received by the radio frequency test base to be within a threshold range of the radio frequency conduction test, then conducts the second feedback link when conducting radiation complete machine performance test so as to reduce the first power by a second numerical value time and improve the power of a radio frequency transceiver in the main radio frequency module through positive feedback adjustment so that the power of the detection signal received by the radio frequency test base is a second power, and therefore the radio frequency power control circuit can enable a signal radiated by an antenna to meet design requirements while meeting conduction test specifications.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a radio frequency power control circuit.
Background
Before the mobile terminal leaves the factory, a radio frequency conduction test and a radiation complete machine performance test are carried out on a mainboard of the mobile terminal, when the radio frequency conduction test is carried out, in order to meet the conduction test 3GPP (third generation partnership project) specification, the radio frequency output power cannot be too high, and when the radiation complete machine performance test is carried out, because the environment of a radio frequency mobile phone antenna is poor, the antenna efficiency is low, the radiated power is greatly reduced, and therefore, the radio frequency output power is needed to be larger at the moment.
However, the rf power control circuit in the prior art cannot meet the conduction test specification and simultaneously make the radiated signal of the antenna meet the design requirement.
Disclosure of Invention
The application provides a radio frequency power control circuit, has solved radio frequency power control circuit effectively and can't be when satisfying the conduction test standard, makes the signal that antenna radiation goes out satisfy the problem of design demand.
In order to solve the above problem, the present invention provides a radio frequency power control circuit, applied to a mobile terminal, including:
the radio frequency test seat is used for carrying out a radio frequency conduction test on the radio frequency power control circuit when the radio frequency test seat is in a first state, and carrying out a radiation overall machine performance test on the radio frequency power control circuit when the radio frequency test seat is in a second state;
the main radio frequency module is provided with a radio frequency transceiver and is electrically connected with the input port of the radio frequency test seat;
a first feedback link electrically connected to the rf front-end input port, for reducing a first power of the rf signal from the rf front-end input port by a first number of times when performing the rf conduction test, so that the power of the detection signal received by the rf test socket is within a threshold range of the rf conduction test; and the number of the first and second groups,
and the second feedback link is electrically connected with the radio frequency front end input port and used for reducing the first power by a second numerical value when the performance test of the whole radiation machine is carried out so as to improve the power of the radio frequency transceiver through positive feedback adjustment and enable the power of the detection signal received by the radio frequency test base to be second power.
Further preferably, the radio frequency power control circuit further includes a logic control module having a control signal output port for outputting a control signal, and the logic control module is electrically connected to the output port of the radio frequency test socket and configured to:
when the radio frequency test socket is in a first state, outputting the control signal in the first state from the control signal output port so that the radio frequency power control circuit selects the first feedback link to perform the radio frequency conduction test;
and when the radio frequency test seat is in a second state, the control signal in the second state is output from the control signal output port, so that the radio frequency power control circuit selects the second feedback link to carry out the performance test of the radiation complete machine.
Further preferably, the logic control module includes a low pass filter unit for preventing noise from entering the radio frequency transceiver.
Further preferably, the rf power control circuit further includes a switch module having a control signal input port for receiving the control signal, and configured to:
when the control signal input port receives the control signal in a first state, the first feedback link is switched on, and the second feedback link is switched off;
and when the control signal input port receives the control signal in the second state, the second feedback link is switched on, and the first feedback link is switched off.
Further preferably, the rf power control circuit further includes a first blocking capacitor for preventing the dc signal in the logic control module from being input to the antenna module of the rf power control circuit.
Further preferably, the radio frequency power control circuit further includes an antenna impedance matching module, configured to debug the impedance of the antenna module, so that the antenna module reaches a working state of maximum power output.
Further preferably, the rf power control circuit further includes a second dc blocking capacitor for preventing the dc signal in the logic control module from being input into the rf transceiver.
Further preferably, the radio frequency power control circuit further includes an inductance element, and the inductance element is used to ground a direct current signal in the logic control module when the radio frequency test socket is in the second state, so that the control signal output port outputs the control signal in the second state.
Further preferably, the antenna module, the radio frequency test socket and the main radio frequency module together form a radio frequency network, the second dc blocking capacitor is connected in series with the inductance element, and the logic control module further includes a resistance element for protecting a device in the radio frequency network from being broken down.
On the other hand, the invention also provides a radio frequency power control method, which is applied to a mobile terminal and comprises the following steps:
providing a radio frequency test seat, wherein when the radio frequency test seat is in a first state, the radio frequency power control circuit performs a radio frequency conduction test, and when the radio frequency test seat is in a second state, the radio frequency power control circuit performs a radiation complete machine performance test;
providing a main radio frequency module with a radio frequency transceiver, wherein the main radio frequency module is electrically connected with an input port of the radio frequency test seat;
providing a first feedback link, electrically connected to a radio frequency front end input port, for reducing a first power of a radio frequency signal from the radio frequency front end input port by a first numerical factor when performing the radio frequency conduction test, so that a power of a detection signal received by the radio frequency test socket is within a threshold range of the radio frequency conduction test;
and providing a second feedback link, wherein the second feedback link is electrically connected with the radio frequency front end input port and is used for reducing the first power by a second numerical value when the performance test of the whole radiation machine is carried out so as to improve the power of the radio frequency transceiver through positive feedback adjustment and enable the power of the detection signal received by the radio frequency test base to be a second power.
The beneficial effects of the invention are as follows: the invention provides a radio frequency power control circuit, comprising: the radio frequency power control circuit conducts the first feedback link when carrying out radio frequency conduction test so as to reduce the first power of a radio frequency signal from a radio frequency front end input port by a first numerical value time and enable the power of a detection signal received by the radio frequency test base to be within a threshold range of the radio frequency conduction test, then conducts the second feedback link when carrying out radiation complete machine performance test so as to reduce the first power by a second numerical value time and improve the power of a radio frequency transceiver in the main radio frequency module through positive feedback adjustment so that the power of the detection signal received by the radio frequency test base is a second power, and therefore the radio frequency power control circuit can enable a radiated signal to meet design requirements while meeting conduction test specifications.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments according to the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an rf power control circuit according to an embodiment of the present invention.
Fig. 2 is another schematic diagram of an rf power control circuit according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating an rf power control method according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
It should be noted that the thicknesses and shapes in the drawings of the present invention do not reflect actual proportions, and are merely intended to schematically illustrate various embodiments of the present invention.
The embodiment of the invention is used for solving the problem that the existing mainboard of the mobile terminal can not meet the conduction test specification and simultaneously enables the radiated signal of the antenna to meet the design requirement.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an rf power control circuit according to an embodiment of the present invention, in which components and relative positions of the components according to the embodiment of the present invention can be seen visually.
As shown in fig. 1, the rf power control circuit 100 includes: an rf test socket 110, a main rf network 120, a first feedback link 130, a second feedback link 140, and an rf front-end input port 150.
Specifically, when the rf test socket 110 is in the first state, the rf power control circuit 100 performs the rf conduction test, and when the rf test socket 110 is in the second state, the rf power control circuit 100 performs the radiation finishing performance test.
Specifically, the main rf module 120 has an rf transceiver 121, and the main rf module 120 is electrically connected to the input port 111 of the rf test socket 110.
Specifically, the first feedback link 130 is electrically connected to the rf front-end input port 150, and is configured to reduce a first power of the rf signal from the rf front-end input port 150 by a first value times when performing the rf conduction test, so that the power of the detection signal received by the rf test socket 110 is within a threshold range of the rf conduction test.
Specifically, the second feedback link 140 is electrically connected to the rf front-end input port 150, and is configured to reduce the first power by a second number of times when performing a radiation complete machine performance test after the rf conduction test is completed, so as to increase the power of the rf transceiver 121 through positive feedback adjustment, and make the power of the detection signal received by the rf test socket 110 be the second power.
Referring to fig. 2, fig. 2 is another schematic structural diagram of an rf power control circuit according to an embodiment of the present invention, in which components and relative positions of the components according to the embodiment of the present invention can be seen visually.
As shown in fig. 2, the rf power control circuit 100 further includes a logic control module 160 having a control signal output port 161 for outputting a control signal, the logic control module 160 being electrically connected to the output port 112 of the rf test socket 110 for:
when the rf test socket 110 is in the first state, the control signal in the first state is output from the control signal output port 161, so that the rf power control circuit 100 selects the first feedback link 130 for the rf conduction test;
when the rf test socket 110 is in the second state, the control signal in the second state is output from the control signal output port 161, so that the rf power control circuit 100 selects the second feedback link 140 to perform the radiation overall performance test.
Further, the radio frequency test socket 100 has a mechanical switch of a press-fit type elastic sheet, when the radio frequency power control circuit 100 performs the radio frequency conduction test, an external radio frequency test probe is inserted into the radio frequency test socket 100, and the mechanical switch is pressed down, so that the inside of the radio frequency test socket 100 is in a disconnected first state; when the rf power control circuit 100 is performing a radiation performance test, the mechanical switch is not pressed, and the inside of the rf test socket 100 is in a second conducting state.
Further, the control signal in the first state is a high level signal, and the control signal in the second state is a low level signal.
Further, the first feedback link 130 is composed of a resistor R1602, a resistor R1603 and a resistor R1604, preferably, the resistance of the resistor R1602 is 18 ohms, the resistance of the resistor R1603 is 300 ohms, the resistance of the resistor R1604 is 300 ohms, and the first feedback link 130 provides 3dB attenuation.
Further, the second feedback link 140 is composed of a resistor R1605, a resistor R1606 and a resistor R1607, preferably, the resistance of the resistor R1605 is 18 ohms, the resistance of the resistor R1606 is 300 ohms, the resistance of the resistor R1607 is 300 ohms, and the second feedback link 140 provides 6dB attenuation.
Specifically, the logic control module 160 includes a low-pass filtering unit, which is composed of a capacitor C1808, a capacitor C1810, an inductor L1811, and an inductor L1815, and is used to prevent noise from entering the rf transceiver 121.
Preferably, the capacitance value of the capacitor C1808 is 18pF, the capacitance value of the capacitor C1810 is 18pF, the inductance value of the inductor L1811 is 22nH, and the inductance value of the inductor L1815 is 22nH, and the low-pass filtering unit can provide attenuation > 10dB for signals with the frequency above 640MHz, so as to prevent other noise from being transmitted, avoid the stray certification exceeding the standard, and ensure the quality of radio-frequency signals.
Specifically, the rf power control circuit 100 further includes a switch module 170, and the switch module 170 includes a first switch 171 and a second switch 172, the first switch 171 has a control signal input port 1711 for receiving a control signal, the second switch 172 has a control signal input port 1721 for receiving a control signal, and the switch module 170 is configured to:
when the control signal input port 1711 and the control signal input port 1721 receive the control signal in the first state, the first feedback link 130 is turned on, and the second feedback link 140 is turned off;
when the control signal input port 1711 and the control signal input port 1721 receive the control signal in the second state, the second feedback link 140 is turned on, and the first feedback link 130 is turned off.
Further, the first switch 171 and the second switch 172 are single-pole double-throw switches and have control pins, respectively, and the first switch 171 and the second switch 172 conduct the switch common terminal ANT with the first feedback link 130 or the second feedback link 140 according to the level of the control pin. Here, the potential of the control pin is determined by the levels of the control signals obtained from the control signal input port 1711 and the control signal input port 1721, and the common terminal ANT of the first switch 171 is electrically connected to the master rf module 120, and the common terminal ANT of the second switch 172 is electrically connected to the rf front-end input port 150.
Specifically, since the logic control module 160 has the power supply VIO18_ PMU providing a voltage of 1.8V, which includes a dc signal, the rf power control circuit 100 further includes a first dc blocking capacitor C1807 for preventing the dc signal in the logic control module 160 from being input to the antenna module 180 of the rf power control circuit 100 and causing damage to the antenna module 180.
Preferably, the capacitance value of the first dc blocking capacitor C1807 is 33pF.
Specifically, the rf power control circuit 100 further includes an antenna impedance matching module 190 for adjusting the impedance of the antenna module 180 to enable the antenna module 180 to reach the operating state of maximum power output.
Further, the antenna impedance matching module 190 is composed of a resistor R1801, an inductor L1801, and a capacitor C1801, and preferably, the capacitance of the capacitor C1801 is 33pF.
Specifically, the rf power control circuit 100 further includes a second dc blocking capacitor C1818 for preventing the dc signal in the logic control module 160 from being input into the rf transceiver 121 and damaging the rf transceiver 121.
Preferably, the second dc blocking capacitor C1818 has a capacitance of 33pF.
Specifically, the rf power control circuit 100 further includes an inductive element L1820, configured to ground the dc signal in the logic control module 160 when the rf test socket 110 is in the second state, so that the control signal output port 161 outputs the control signal in the second state.
Preferably, the inductance value of the inductance element L1820 is 27nH.
Specifically, the antenna module 180, the rf test socket 110 and the main rf module 120 together form an rf network, and the second dc blocking capacitor C1818 is connected in series with the inductance element L1820 to protect devices in the rf network from breakdown.
Specifically, the logic control module 160 further includes a resistive element including a resistor R1803 and a resistor R1804, so as to reduce the energy input into the radio frequency network by the logic control module 160, so as to protect the devices in the radio frequency network.
Preferably, the resistor R1803 has a value of 10K ohms and the resistor R1804 has a value of 100K ohms.
Further, the main rf module 120 further includes a filter (including a duplexer, a multiplexer, and other filter devices), a switch, a coupler, and a power amplifier.
Further, the operation principle of the rf power control circuit 100 is as follows: after the rf power control circuit 100 determines the level value of the control signal output from the control signal output port 161 according to the state of the rf test socket 110, the control signal is input into the first switch 171 and the second switch 172, and determines to turn on the first feedback link 130 or the second feedback link 140, then the rf signal input from the rf front-end input port 150 sequentially passes through the first switch 171, the first feedback link 130 or the second feedback link 140, and the second switch 172, and is finally input into the rf transceiver 121 in the main rf module 120, and the rf transceiver 121 performs real-time feedback and adjusts the magnitude of the actual rf output signal, and the actual rf output signal is equal to the detection signal received by the rf test socket 110.
Unlike the prior art, the present invention provides a radio frequency power control circuit 100, comprising: the radio frequency power control circuit 100 conducts the first feedback link 130 to reduce the first power of the radio frequency signal from the radio frequency front end input port 150 by a first value times so that the power of the detection signal received by the radio frequency test socket 110 is within a threshold range of the radio frequency conduction test when the radio frequency conduction test is performed, and then conducts the second feedback link 140 to reduce the first power by a second value times when the radiation complete machine performance test is performed, so that the power of the radio frequency transceiver 121 in the main radio frequency module 120 is improved through positive feedback adjustment, the power of the detection signal received by the radio frequency test socket 110 is made to be a second power, and the radio frequency power control circuit 100 can make the radiated signal meet the design requirement while meeting the conduction test specification.
Referring to fig. 3, fig. 3 is a flowchart illustrating an rf power control method according to an embodiment of the invention.
As shown in fig. 3, the specific steps of the rf power control method are as follows:
s101, providing a radio frequency test seat, wherein when the radio frequency test seat is in a first state, a radio frequency power control circuit performs a radio frequency conduction test, and when the radio frequency test seat is in a second state, the radio frequency power control circuit performs a radiation complete machine performance test;
s102, providing a main radio frequency module which is provided with a radio frequency transceiver and is electrically connected with an input port of a radio frequency test seat;
s103, providing a first feedback link, wherein the first feedback link is electrically connected with the radio frequency front end input port and is used for reducing the first power of the radio frequency signal from the radio frequency front end input port by a first numerical value time when the radio frequency conduction test is carried out so as to enable the power of the detection signal received by the radio frequency test base to be within the threshold range of the radio frequency conduction test;
and S104, providing a second feedback link, wherein the second feedback link is electrically connected with the radio frequency front end input port and is used for reducing the first power by a second numerical value when the performance test of the whole radiation machine is carried out so as to improve the power of the radio frequency transceiver through positive feedback regulation and enable the power of the detection signal received by the radio frequency test base to be the second power.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention, in which components of the present invention and relative position relationships of the components can be seen visually.
As shown in fig. 4, the mobile terminal 300 includes a radio frequency power control circuit 100 (not shown) mounted on the mobile terminal 300, and the printed circuit board 10 is provided with an RF circuit 310, a memory 320, an input unit 330, a display unit 340, a sensor 350, an audio circuit 360, a transmission module 370, a processor 380, and a power supply 390. The RF test socket 110, the main RF network 120, the first feedback link 130, the second feedback link 140, and the RF front-end input port 150 of the RF power control circuit 100 are disposed on the RF circuit 310.
In particular, the RF circuit 310 is used for receiving and transmitting electromagnetic waves, and implementing interconversion between the electromagnetic waves and electrical signals, thereby communicating with a communication network or other devices. RF circuitry 310 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, memory, and so forth. RF circuit 310 may communicate with various networks such as the internet, an intranet, a wireless network, or with other devices over a wireless network. The wireless network may comprise a cellular telephone network, a wireless local area network, or a metropolitan area network. The Wireless network described above may use various Communication standards, protocols and technologies, including but not limited to Global System for Mobile Communication (GSM), enhanced Mobile Communication (Enhanced Data GSM Environment, EDGE), wideband Code Division Multiple Access (WCDMA), code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), wireless Fidelity (Wi-Fi) (e.g., institute of electrical and electronics engineers standard IEEE802.11 a, IEEE802.11 b, IEEE802.1 g and/or IEEE802.11 n), voice over Internet Protocol (VoIP), world wide Internet Access (micro for Access, max), other suitable protocols for Wireless messaging, and other instant messaging protocols, including any other protocols that are currently developed, and even those suitable for instant messaging.
The memory 320 may be configured to store software programs and modules, such as program instructions/modules corresponding to the automatic light supplement system and method for front-facing camera photographing in the foregoing embodiments, and the processor 380 executes various functional applications and data processing by running the software programs and modules stored in the memory 320, so as to implement the function of automatic light supplement for front-facing camera photographing. The memory 320 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 320 can further include memory located remotely from the processor 380, which can be connected to the mobile terminal 300 over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input unit 330 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, the input unit 330 may include a touch-sensitive surface 331 as well as other input devices 332. Touch-sensitive surface 331, also referred to as a touch screen or touch pad, may collect touch operations by a user on or near the touch-sensitive surface 331 (e.g., operations by a user on or near the touch-sensitive surface 331 using a finger, stylus, or any other suitable object or attachment), and actuate the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface 331 may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 380, and can receive and execute commands sent by the processor 380. In addition, the touch-sensitive surface 331 may be implemented using various types of resistive, capacitive, infrared, and surface acoustic waves. The input unit 330 may comprise other input devices 332 in addition to the touch sensitive surface 331. In particular, other input devices 332 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 340 may be used to display information input by or provided to the user and various graphical user interfaces of the mobile terminal 300, which may be made up of graphics, text, icons, video, and any combination thereof. The Display unit 340 may include a Display panel 341, and optionally, the Display panel 341 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like. Further, touch-sensitive surface 331 may overlay display panel 341, and when touch-sensitive surface 331 detects a touch operation thereon or thereabout, communicate to processor 380 to determine the type of touch event, and processor 380 then provides a corresponding visual output on display panel 341 in accordance with the type of touch event. Although in fig. 3 touch-sensitive surface 331 and display panel 341 are implemented as two separate components for input and output functions, in some embodiments touch-sensitive surface 331 and display panel 341 may be integrated for input and output functions.
The sensor 350 may be a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display panel 341 according to the brightness of ambient light, and a proximity sensor that may turn off the display panel 341 and/or the backlight when the mobile terminal 300 is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the mobile phone is stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which may be further configured on the mobile terminal 300, detailed descriptions thereof are omitted.
The transport module 370 (e.g., a Wi-Fi module) may assist a user in sending and receiving e-mail, browsing web pages, accessing streaming media, etc., which provides wireless broadband internet access to the user. Although fig. 3 shows the transmission module 370, it is understood that it does not belong to the essential constitution of the mobile terminal 300 and may be omitted entirely within the scope not changing the essence of the invention as needed.
The processor 380 is a control center of the mobile terminal 300, connects various parts of the entire mobile phone using various interfaces and lines, and performs various functions of the mobile terminal 300 and processes data by operating or executing software programs and/or modules stored in the memory 320 and calling data stored in the memory 320, thereby integrally monitoring the mobile phone. Optionally, processor 380 may include one or more processing cores; in some embodiments, processor 380 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 380.
A power supply 390, such as a battery, is used to power the various components and, in some embodiments, may be logically coupled to the processor 380 via a power management system to manage charging, discharging, and power consumption via the power management system. The power supply 390 may also include any component including one or more of a dc or ac power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by using equivalents or equivalent substitutions fall within the protection scope of the claims of the present invention.
In summary, although the preferred embodiments of the present invention have been described above, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A radio frequency power control circuit applied to a mobile terminal, comprising:
the radio frequency test seat is used for carrying out a radio frequency conduction test on the radio frequency power control circuit when the radio frequency test seat is in a first state, and carrying out a radiation overall machine performance test on the radio frequency power control circuit when the radio frequency test seat is in a second state;
the main radio frequency module is provided with a radio frequency transceiver and is electrically connected with the input port of the radio frequency test seat;
a first feedback link electrically connected to the rf front-end input port, for reducing a first power of the rf signal from the rf front-end input port by a first number of times when performing the rf conduction test, so that the power of the detection signal received by the rf test socket is within a threshold range of the rf conduction test; and the number of the first and second groups,
and the second feedback link is electrically connected with the radio frequency front end input port and used for reducing the first power by a second numerical value when the performance test of the whole radiation machine is carried out so as to improve the power of the radio frequency transceiver through positive feedback adjustment and enable the power of the detection signal received by the radio frequency test base to be second power.
2. The rf power control circuit of claim 1, further comprising a logic control module having a control signal output port outputting a control signal, the logic control module being electrically connected to the output port of the rf test socket for:
when the radio frequency test socket is in a first state, outputting the control signal in the first state from the control signal output port so that the radio frequency power control circuit selects the first feedback link to perform the radio frequency conduction test;
and when the radio frequency test seat is in a second state, the control signal in the second state is output from the control signal output port, so that the radio frequency power control circuit selects the second feedback link to carry out the performance test of the radiation complete machine.
3. The rf power control circuit of claim 2, wherein the logic control module includes a low pass filter unit to prevent noise from entering the rf transceiver.
4. The rf power control circuit of claim 2, further comprising a switch module having a control signal input port receiving the control signal for:
when the control signal input port receives the control signal in a first state, the first feedback link is switched on, and the second feedback link is switched off;
and when the control signal input port receives the control signal in the second state, the second feedback link is switched on, and the first feedback link is switched off.
5. The rf power control circuit of claim 2, further comprising a first blocking capacitor for preventing dc signals from the logic control module from being input to an antenna module of the rf power control circuit.
6. The RF power control circuit of claim 5, further comprising an antenna impedance matching module for tuning the impedance of the antenna module to achieve a maximum power output operating state of the antenna module.
7. The RF power control circuit of claim 5, further comprising a second blocking capacitor for preventing DC signals from the logic control module from being input into the RF transceiver.
8. The rf power control circuit of claim 7, further comprising an inductive element configured to ground the dc signal in the logic control module when the rf test socket is in the second state, so that the control signal output port outputs the control signal in the second state.
9. The rf power control circuit of claim 8, wherein the antenna module, the rf test socket, and the main rf module collectively form an rf network, the second dc blocking capacitor is connected in series with the inductive element, and the logic control module further comprises a resistive element to protect devices in the rf network from breakdown.
10. A radio frequency power control method is applied to a mobile terminal, and is characterized by comprising the following steps:
providing a radio frequency test seat, wherein when the radio frequency test seat is in a first state, the radio frequency power control circuit performs a radio frequency conduction test, and when the radio frequency test seat is in a second state, the radio frequency power control circuit performs a radiation complete machine performance test;
providing a main radio frequency module which is provided with a radio frequency transceiver and is electrically connected with an input port of the radio frequency test seat;
providing a first feedback link, electrically connected to a radio frequency front end input port, for reducing a first power of a radio frequency signal from the radio frequency front end input port by a first numerical factor when performing the radio frequency conduction test, so that a power of a detection signal received by the radio frequency test socket is within a threshold range of the radio frequency conduction test;
and providing a second feedback link, wherein the second feedback link is electrically connected with the radio frequency front end input port and is used for reducing the first power by a second numerical value when the performance test of the whole radiation machine is carried out so as to improve the power of the radio frequency transceiver through positive feedback adjustment and enable the power of the detection signal received by the radio frequency test base to be a second power.
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| CN112311930A (en) * | 2020-11-24 | 2021-02-02 | 惠州Tcl移动通信有限公司 | Terminal testing method and device, storage medium and mobile terminal |
| CN112526903B (en) * | 2020-11-25 | 2022-07-22 | 浪潮电子信息产业股份有限公司 | Electronic jump cap switching circuit and server system |
| CN113630146B (en) * | 2021-07-09 | 2022-06-14 | 荣耀终端有限公司 | Line switching system and method for radio frequency conduction test |
| CN113644988B (en) * | 2021-08-16 | 2023-08-04 | 青岛海信移动通信技术股份有限公司 | Communication terminal and test method |
| CN114252717B (en) * | 2021-12-16 | 2023-08-11 | 惠州Tcl移动通信有限公司 | Electronic equipment and method for judging radio frequency test mode of electronic equipment |
| CN114362848A (en) * | 2022-01-21 | 2022-04-15 | 惠州Tcl移动通信有限公司 | Terminal equipment and antenna performance testing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105850062A (en) * | 2013-10-29 | 2016-08-10 | 亚德诺半导体集团 | Active antenna system and methods of testing |
| WO2017166482A1 (en) * | 2016-03-29 | 2017-10-05 | 乐视控股（北京）有限公司 | Mobile communication terminal, and method and device for optimizing wireless performance of mobile communication terminal |
| US10181832B1 (en) * | 2017-10-05 | 2019-01-15 | Motorola Mobility Llc | Multimode transmit power control loop, electronic device, and method of adjusting a detected operating level of amplified power output |
| WO2020033643A1 (en) * | 2018-08-10 | 2020-02-13 | Intel Corporation | Downlink signal and noise control to test user equipment performance requirements |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120100813A1 (en) * | 2010-10-20 | 2012-04-26 | Mow Matt A | System for testing multi-antenna devices using bidirectional faded channels |
| US8983395B2 (en) * | 2011-12-12 | 2015-03-17 | Apple Inc. | Methods and apparatus for testing radio-frequency power amplifier performance |
| US8811461B1 (en) * | 2013-03-15 | 2014-08-19 | Litepoint Corporation | System and method for testing radio frequency wireless signal transceivers using wireless test signals |
| CN106209149B (en) * | 2016-06-30 | 2018-10-19 | 维沃移动通信有限公司 | A kind of radio circuit and mobile terminal |
| CN107465781B (en) * | 2017-09-01 | 2020-01-10 | 北京小米移动软件有限公司 | Terminal device |
| CN109462448B (en) * | 2018-12-13 | 2021-09-07 | 厦门美图移动科技有限公司 | Radio frequency test method, mobile terminal and storage medium |
-
2020
- 2020-03-26 CN CN202010224135.1A patent/CN111431634B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105850062A (en) * | 2013-10-29 | 2016-08-10 | 亚德诺半导体集团 | Active antenna system and methods of testing |
| WO2017166482A1 (en) * | 2016-03-29 | 2017-10-05 | 乐视控股（北京）有限公司 | Mobile communication terminal, and method and device for optimizing wireless performance of mobile communication terminal |
| US10181832B1 (en) * | 2017-10-05 | 2019-01-15 | Motorola Mobility Llc | Multimode transmit power control loop, electronic device, and method of adjusting a detected operating level of amplified power output |
| WO2020033643A1 (en) * | 2018-08-10 | 2020-02-13 | Intel Corporation | Downlink signal and noise control to test user equipment performance requirements |
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