WO2016026292A1 - 一种功放栅压的调节方法、装置和存储介质 - Google Patents

一种功放栅压的调节方法、装置和存储介质 Download PDF

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Publication number
WO2016026292A1
WO2016026292A1 PCT/CN2015/074422 CN2015074422W WO2016026292A1 WO 2016026292 A1 WO2016026292 A1 WO 2016026292A1 CN 2015074422 W CN2015074422 W CN 2015074422W WO 2016026292 A1 WO2016026292 A1 WO 2016026292A1
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power amplifier
amplifier tube
dac
value
gate voltage
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PCT/CN2015/074422
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English (en)
French (fr)
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张鹏
李超
杜建洋
陈军政
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中兴通讯股份有限公司
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Publication of WO2016026292A1 publication Critical patent/WO2016026292A1/zh

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers

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  • the present invention relates to a radio frequency power amplifier in the field of wireless communications, and more particularly to a method, device and storage medium for adjusting a power grid voltage.
  • the RF power amplifier unit/module is the main component of the wireless communication device.
  • the rationality of the static working point of the power amplifier tube is a necessary condition for its normal operation.
  • the static working point is adjusted by the gate voltage of the power amplifier tube. .
  • the second implementation method also has some problems: the software may be abnormal, such as: program runaway or program error, etc., causing the output of the DAC to be abnormal.
  • the hardware required to support the software including the MCU, DAC, etc., is subject to external interference, making the gate voltage output to the power amplifier tube abnormal. These abnormalities will cause the RF power amplifier unit/module to work abnormally. In severe cases, it will directly cause damage or even burnout of the power amplifier tube, and the entire system will not work properly.
  • an embodiment of the present invention provides an adjustment of a power amplifier gate voltage.
  • Embodiments of the present invention provide a method for adjusting a power grid voltage, the method comprising:
  • the external environment parameter and/or the gate voltage value outputted by the DAC to the power amplifier tube are obtained, and the external environmental parameter and/or the gate voltage value are compared with a preset threshold value, if the pre-predicted value is exceeded.
  • the threshold value is set, and the gate voltage value of the DAC output to the power amplifier tube is restored to an initial value; or
  • the ambient environment parameter is restored to a normal value.
  • the gate voltage value obtained by acquiring the external environment parameter and/or the DAC output to the power amplifier tube is:
  • the ambient environmental parameters and/or the gate voltage values output by the DAC to the power amplifier tube are sampled at intervals, the time of the intervals being the same or different.
  • the comparing the external environment parameter and/or the gate pressure value with a preset threshold value including:
  • the gate voltage value is used for trend judgment and upper limit judgment.
  • the method further includes:
  • a voltage dividing resistor is disposed between the DAC and the power amplifier tube, and the voltage dividing resistor is grounded at one end and connected to the gate of the power amplifier tube at the other end.
  • the method further includes:
  • a Zener diode is disposed between the DAC and the power amplifier tube, the Zener diode is positively grounded, and the negative electrode is connected to the gate of the power amplifier tube.
  • the method further includes:
  • a voltage comparator is disposed between the DAC and the power amplifier tube, and the two input voltages of the voltage comparator are respectively a reference voltage of the DAC output and a gate voltage reaching the power amplifier tube, and the output end is The MCU is connected.
  • Embodiments of the present invention also provide a storage medium including a set of instructions that, when executed, cause at least one processor to perform the operations described above.
  • the embodiment of the present invention further provides an adjustment device for a power amplifier gate voltage, including: an MCU, a DAC, and a power amplifier tube;
  • the MCU includes: an acquisition module, a comparison module, and an operation module;
  • the obtaining module is configured to acquire external environment parameters and/or a gate voltage value of the DAC output to the power amplifier tube during system operation;
  • the comparison module is configured to compare the ambient environment parameter and/or the gate pressure value with a preset threshold value, and notify the operation module of the comparison result;
  • the operation module is configured to: when the comparison result exceeds a preset threshold, restore the gate voltage value of the DAC output to the power amplifier tube to an initial value; or configure to determine that the external environment parameter exceeds When the preset threshold is set, the external environment parameter is restored to a normal value.
  • the device further includes: a voltage dividing resistor disposed between the DAC and the power amplifier tube, the voltage dividing resistor is grounded at one end, and the other end is connected to the gate of the power amplifier tube.
  • the apparatus further includes: a Zener diode disposed between the DAC and the power amplifier tube, the Zener diode is positively grounded, and a negative pole is connected to a gate of the power amplifier tube.
  • the apparatus further includes: a voltage comparator disposed between the DAC and the power amplifier tube, the two inputs of the voltage comparator are respectively connected to the DAC and the gate of the power amplifier tube, and the output terminal and the MCU Connected.
  • the method, device and storage medium for adjusting the power grid voltage of the embodiment of the present invention during the operation of the system, acquiring external environmental parameters and/or gate voltage values outputted by the DAC to the power amplifier tube, and the external environmental parameters and/or The gate voltage value is compared with a preset threshold value, and if the preset threshold value is exceeded, the gate voltage value outputted by the DAC to the power amplifier tube is restored to an initial value; or, if the external environment If the parameter exceeds the preset threshold, the external environment parameter is restored. Set to normal value.
  • the embodiment of the invention automatically adjusts the gate voltage of the DAC output to the power amplifier tube according to the change of the external environment and/or the change of the gate voltage value of the DAC output to the power amplifier tube, so that the gate voltage of the power amplifier tube of the RF power amplifier unit/module operates at Normal working range, to avoid abnormality of the gate voltage of the power amplifier tube when the equipment is abnormal, or when the hardware is subjected to external interference or other abnormalities, thus ensuring the normal operation of the system.
  • FIG. 1 is a schematic flow chart of a method for adjusting a power grid voltage according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a gate voltage adjusting circuit provided with a voltage dividing resistor according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a gate voltage regulation circuit provided with a Zener diode according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a gate voltage adjusting circuit provided with a voltage comparator according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an MCU in a power amplifier gate voltage adjusting device according to an embodiment of the present invention.
  • the ambient environment parameter and/or the gate voltage value outputted by the DAC to the power amplifier tube are obtained, and the external environmental parameter and/or the gate voltage value and the preset threshold are obtained.
  • the value is compared, if the preset threshold is exceeded, the gate voltage value of the DAC output to the power amplifier tube is restored to an initial value; or, if the external environment parameter exceeds a preset threshold value, The external environment parameter recovery is set to a normal value.
  • FIG. 1 is a schematic flow chart of a method for adjusting a power grid voltage according to an embodiment of the present invention, as shown in FIG. 1 Show that the method includes:
  • Step 101 Obtain external environment parameters and/or a gate voltage value of the DAC output to the power amplifier tube during system operation;
  • external system parameters such as temperature parameters, frequency parameters, power parameters, and carrier format parameters, such as: temperature parameters, frequency parameters, power parameters, and carrier format parameters
  • carrier format parameters such as: temperature parameters, frequency parameters, power parameters, and carrier format parameters
  • the following sampling method may be adopted: interval sampling is performed on external environmental parameters, and the intervals are the same or different.
  • the interval sampling method can also be used for acquisition, and the interval time is the same or different.
  • the temperature measurement of the plurality of sensors can be performed at the same time.
  • Step 102 Compare the ambient environment parameter and/or the gate voltage value with a preset threshold value, and if the preset threshold value is exceeded, restore the gate voltage value of the DAC output to the power amplifier tube. Set to an initial value; or, if the external environment parameter exceeds a preset threshold, restore the external environment parameter to a normal value;
  • the obtained value is sampled based on the interval of the ambient environment parameter and/or the gate voltage value outputted by the DAC to the power amplifier tube, and the external environment parameter and/or the DAC are respectively output to the power amplifier tube by using a preset threshold value.
  • the gate voltage value is used for trend judgment and upper limit judgment, for example,
  • the sampling value of the external environment between adjacent or different intervals is subjected to difference processing, and the difference value and the preset threshold value, for example, have been saved in the ROM.
  • the threshold value is compared. If the preset threshold value is exceeded, the alarm is reported, and the gate voltage value of the DAC output to the power amplifier tube is restored to an initial value; of course, multiple environments of the same device can also be performed. Comparison of factors, for example, a sensor with the same function in one device can be placed in multiples. In the case of temperature, after an abnormality occurs in one temperature sensor, it can be switched to another temperature sensor to obtain external environmental parameters, thereby restoring normal regulation.
  • Function in addition, It can also compare and judge the environmental data of multiple modules uploaded to the sensor in the same geographical environment, for example, using the numbering method: in the case of the same geographical environment parameters, these devices can upload their own sensor data and judge and compare in the background. For example, if all the base stations in an area upload their own sensor data to the server, if the temperature of a certain device is obviously high, the processing method is the same as the above-mentioned processing method exceeding the threshold. This judgment can avoid the jump of the gate voltage value of the DAC output to the power amplifier tube due to environmental factors, ensure the stability of the gate voltage value, and maintain the normal operation of the entire system.
  • the gate voltage value of the DAC output to the power amplifier tube in the adjacent or different interval is processed, and the difference is compared with the preset threshold value. If the preset threshold value is exceeded, the alarm is reported. And according to the adjustment strategy, the gate voltage value of the DAC output to the power amplifier tube is restored to an initial value.
  • the external environment parameters obtained by sampling each interval are compared at the same time (or other identical dimensions), and the preset gates stored in the ROM are The limit value is compared. If the preset threshold value is exceeded, an alarm report can be performed, and the gate voltage value of the DAC output to the power amplifier tube is restored to an initial value.
  • the same time means that when the sensors having multiple functions of the same in the device are compared, the time points must be the same; in addition, the judgment of the sampled data should be judged in continuous time, that is, for each sample. The data is judged.
  • the temperature sensor is read and compared at the same time with the device; or, the temperature value obtained by sampling two or more consecutive intervals is compared and judged, and if there is a jump, the processing method and the above threshold are exceeded.
  • the value is handled in the same way.
  • the above external environment parameter may also be set to a normal value, and accordingly, the gate voltage value outputted by the DAC to the power amplifier tube will also return to a normal value.
  • the gate voltage value of each DAC outputted to the power amplifier tube is compared with a preset threshold value. If the preset threshold value is exceeded, an alarm report can be performed, and the DAC is output to the power amplifier. The gate voltage recovery of the tube is set to the initial value.
  • the ambient environment parameter if the external environment parameter exceeds a preset threshold, the ambient environment parameter is restored to a normal value, for example, if there are multiple environmental parameter sensors on the device, such as a temperature sensor, the abnormality may be The external environmental parameters are switched to the normal external environment parameters corresponding to the other environmental parameter sensors, so that the gate pressure value can be restored to the normal value accordingly.
  • the method further comprises: setting a threshold value required for the comparison judgment according to the empirical value, and storing the threshold value in the ROM.
  • the change of the external environment parameter will cause the gate voltage value of the DAC output to the power amplifier tube to change, and therefore, the environment value can be set according to the empirical value.
  • the threshold corresponding to the parameter is a certain relationship between the external environment parameters and the gate voltage value of the DAC output to the power amplifier tube.
  • the method further includes: setting an adjustment strategy for setting a gate voltage value of the DAC output to the power amplifier tube according to the external environment parameter according to the empirical value, and storing the adjustment strategy in the ROM.
  • the embodiment of the present invention may further perform the lower limit judgment based on the above-mentioned values obtained by sampling the ambient environment parameters and/or the gate voltage value outputted by the DAC to the power amplifier tube, and respectively using the preset threshold value, for example, each will be The sampling value is compared with the preset lower threshold. If the threshold is lower than the threshold, the alarm is generated and the recovery setting is performed.
  • the specific implementation method is similar to the above upper limit judgment, and will not be described in detail here.
  • the embodiment of the invention automatically adjusts the gate voltage of the DAC output to the power amplifier tube according to the change of the external environment and/or the change of the gate voltage value of the DAC output to the power amplifier tube, so that the gate voltage of the power amplifier tube of the RF power amplifier unit/module operates at Normal working range, to avoid abnormality of the gate voltage of the power amplifier tube when the equipment is abnormal, or when the hardware is subjected to external interference or other abnormalities, thus ensuring the normal operation of the system.
  • the method further includes: providing a voltage dividing resistor between the DAC and the power amplifier tube, the voltage dividing resistor being grounded at one end and connected to the gate of the power amplifier tube at the other end.
  • the resistor 2 is a set voltage dividing resistor, and the sensors 1, 2...n, The MCU, DAC, and ROM and resistor 1 are existing modules. If the gate voltage of the DAC output to the power amplifier tube is too large, the resistor 2 will share a portion of the voltage so that the voltage reaching the gate of the power amplifier tube is lowered. Therefore, by setting the voltage divider resistor of the appropriate resistance value, that is, the setting of the resistor 2, the gate voltage abnormality caused by the excessive gate voltage value of the DAC output to the power amplifier tube can be further prevented, thereby further ensuring the normal operation of the system.
  • the method further includes: providing a Zener diode between the DAC and the power amplifier tube, the Zener diode being positively grounded, and the negative electrode being connected to the gate of the power amplifier tube.
  • the Zener diode is shown in FIG. 3, and the sensors 1, 2...n, MCU, DAC, and ROM, and the resistor 1 are existing modules. If the gate voltage of the DAC output to the power amplifier tube is too large, according to the working principle of the Zener diode, the reverse cutoff characteristic of the diode can be used to limit the excessive voltage within a certain range, such as controlling the output of the DAC to the power amplifier tube.
  • the gate voltage value is always less than the maximum allowed, so that the voltage at the gate of the power amplifier tube is reduced. Therefore, the embodiment of the present invention can further prevent the gate voltage abnormality caused by the excessive gate voltage value of the DAC output to the power amplifier tube, thereby further ensuring normal operation of the system.
  • the method further includes: providing a voltage comparator between the DAC and the power amplifier tube, wherein the two input voltages of the voltage comparator are respectively a reference voltage output by the DAC and reaching the power amplifier tube
  • the gate voltage is connected to the MCU.
  • the voltage comparator is as shown in FIG. 4, and the sensors 1, 2, ..., MCU, DAC, ROM, and resistor 1 are existing modules.
  • the voltage comparator compares the gate voltage of the power amplifier tube with the reference voltage of the DAC output. If the difference exceeds the alarm threshold, the voltage comparator can notify the MCU to turn off the gate voltage.
  • the alarm threshold may be set to a maximum gate voltage that the power amplifier tube can withstand. Therefore, the embodiment of the present invention can further prevent the gate voltage abnormality caused by the excessive gate voltage value of the DAC output to the power amplifier tube, thereby further ensuring normal operation of the system.
  • the embodiment of the present invention further provides an adjustment device for a power amplifier gate voltage, including: an MCU, a DAC, and a power amplifier tube; the MCU, as shown in FIG. 5, includes: an acquisition module 50, a comparison module 52, and a transport Line module 54; wherein
  • the obtaining module 50 can be implemented by a CPU in the MCU, configured to obtain external environment parameters and/or a gate voltage value of the DAC output to the power amplifier tube during system operation;
  • external sensors such as temperature parameters
  • internal communication in a single board
  • internal communication of the system for example, the following sampling methods may be adopted for the environmental parameters:
  • the ambient environment parameters are sampled at intervals, and the intervals are the same or different.
  • the interval sampling method can also be used for acquisition, and the interval time is the same or different.
  • the comparison module 52 is implemented by a comparator in the MCU, configured to compare the external environment parameter and/or the gate voltage value with a preset threshold value, and notify the comparison result
  • the operation module 54
  • the obtained value is sampled based on the interval of the ambient environment parameter and/or the gate voltage value outputted by the DAC to the power amplifier tube, and the external environment parameter and/or the DAC are respectively output to the power amplifier tube by using a preset threshold value.
  • the gate voltage value is used for trend judgment and upper limit judgment.
  • the operation module 54 can be implemented by a CPU in the MCU, and configured to determine that the gate voltage value outputted by the DAC to the power amplifier tube is set to an initial value when the comparison result exceeds a preset threshold value; Or, configured to determine that the external environment parameter exceeds a preset threshold, and restore the external environment parameter to a normal value;
  • the sampling value of the external environment between adjacent or different intervals is subjected to difference processing, and the difference value and the preset threshold value, for example, have been saved.
  • the threshold values in the ROM are compared. If the preset threshold value is exceeded, the alarm is reported, and the gate voltage value of the DAC output to the power amplifier tube is restored to an initial value; Comparison of environmental factors; comparison of environmental data uploaded by multiple modules in the same geographical environment to the sensor. This judgment can avoid the jump of the gate voltage value of the DAC output to the power amplifier tube due to environmental factors, ensure the stability of the gate voltage value, and maintain the normal operation of the entire system.
  • the gate voltage value of the DAC output to the power amplifier tube in the adjacent or different interval is processed, and the difference is compared with the preset threshold value. If the preset threshold value is exceeded, the alarm is reported. And according to the adjustment strategy, the gate voltage value of the DAC output to the power amplifier tube is restored to an initial value.
  • the external environment parameters obtained by sampling each interval are compared at the same time (or other identical dimensions), and the preset gates stored in the ROM are The limit value is compared. If the preset threshold value is exceeded, an alarm report can be performed, and the gate voltage value of the DAC output to the power amplifier tube is restored to an initial value.
  • the above external environment parameter may also be set to a normal value, and accordingly, the gate voltage value outputted by the DAC to the power amplifier tube will also return to a normal value.
  • the gate voltage value of each DAC outputted to the power amplifier tube is compared with a preset threshold value. If the preset threshold value is exceeded, an alarm report can be performed, and the DAC is output to the power amplifier. The gate voltage recovery of the tube is set to the initial value.
  • the operation module determines that the external environment parameter exceeds a preset threshold value, and restores the external environment parameter to a normal value; for example, if the device has multiple environmental parameter sensors, such as a temperature sensor, The abnormal external environment parameter can be switched to the normal external environment parameter corresponding to the other environmental parameter sensor, so that the gate pressure value can be restored to the normal value correspondingly.
  • the method further comprises: setting a threshold value required for the comparison judgment according to the empirical value, and storing the threshold value in the ROM.
  • the change of the external environment parameter will cause the gate voltage value of the DAC output to the power amplifier tube to change, and therefore, the environment value can be set according to the empirical value.
  • the threshold corresponding to the parameter is a certain relationship between the external environment parameters and the gate voltage value of the DAC output to the power amplifier tube.
  • the device further includes: a voltage dividing resistor disposed between the DAC and the power amplifier tube, the voltage dividing resistor is grounded at one end, and the power amplifier tube is connected to the power amplifier tube The gates are connected.
  • the device further includes: a Zener diode disposed between the DAC and the power amplifier tube, the Zener diode is positively grounded, and the negative pole is opposite to the power amplifier tube The gates are connected.
  • the device further includes: a voltage comparator disposed between the DAC and the power amplifier tube, wherein the two input ends of the voltage comparator are respectively connected to the DAC and the power amplifier tube The gate is connected and the output is connected to the MCU.
  • Embodiments of the present invention also provide a storage medium including a set of instructions that, when executed, cause at least one processor to perform the operations described above.
  • the embodiment of the invention automatically adjusts the gate voltage of the DAC output to the power amplifier tube according to the change of the external environment and/or the change of the gate voltage value of the DAC output to the power amplifier tube, so that the gate voltage of the power amplifier tube of the RF power amplifier unit/module operates at Normal working range, to avoid abnormality of the gate voltage of the power amplifier tube when the equipment is abnormal, or when the hardware is subjected to external interference or other abnormalities, thus ensuring the normal operation of the system.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种功放栅压的调节方法，该方法包括：系统运行过程中，获取外界环境参数和/或DAC输出到功放管的栅压值（101），并将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，如果超过预设的门限值，则将所述DAC输出到功放管的栅压值恢复设置为初始值；如果所述外界环境参数超过预设的门限值，则将所述外界环境参数恢复设置为正常值（102）。一种功放栅压的调节装置和存储介质。

Description

一种功放栅压的调节方法、装置和存储介质 技术领域
本发明涉及无线通信领域中的射频功率放大器，尤其涉及一种功放栅压的调节方法、装置和存储介质。
背景技术
射频功率放大器单元/模块是无线通信设备的主要组成部分，其中，功放管静态工作点的合理与否是其正常工作的必要条件，静态工作点是通过功放管的栅极电压大小来进行调节的。
功放管的栅压调节有两种方法：
一、通过手动旋转电位器来调节分压电路，使得分配到功放管的栅极处的电压达到所需电压。但是，这种方式存在稳定性差、可生产性差、人为干预因素较多等不利因素而已被慢慢淘汰；
二、通过单片机(MCU)的软件运行，控制数字模拟转换器(DAC)的输出，使得DAC输出到功放管栅极处的电压达到所需电压。这种方式由于自动化程度高、可生产性好、人为干预因素少等特点得到了普遍应用。
但是，所述第二种实现方法也存在一些问题：软件可能会出现异常，比如：程序跑飞或程序错误等导致DAC的输出异常。另外，支持软件所需的硬件，包括MCU、DAC等受外界干扰，使得输出到功放管的栅压异常。这些异常将导致射频功率放大器单元/模块工作状态不正常，严重时会直接导致功放管的损伤、甚至烧毁，整个系统也将无法正常工作。
发明内容
为解决现有存在的技术问题，本发明实施例提供一种功放栅压的调节 方法、装置和存储介质。
本发明实施例提供了一种功放栅压的调节方法，该方法包括：
系统运行过程中，获取外界环境参数和/或DAC输出到功放管的栅压值，并将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，如果超过预设的门限值，则将所述DAC输出到功放管的栅压值恢复设置为初始值；或者，
如果所述外界环境参数超过预设的门限值，则将所述外界环境参数恢复设置为正常值。
其中，所述获取外界环境参数和/或DAC输出到功放管的栅压值为：
对所述外界环境参数和/或DAC输出到功放管的栅压值进行间隔采样，所述间隔的时间相同或者不同。
其中，所述将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，包括：
基于所述对外界环境参数和/或DAC输出到功放管的栅压值的间隔采样获取的数值，并利用预设的门限值分别对所述外界环境参数和/或DAC输出到功放管的栅压值进行趋势判断和上限判断。
在一个实施例中，该方法还包括：
在所述DAC与功放管之间设置分压电阻，所述分压电阻一端接地，另一端与功放管的栅极相连。
在一个实施例中，该方法还包括：
在所述DAC与功放管之间设置稳压二极管，所述稳压二极管正极接地，负极与功放管的栅极相连。
在一个实施例中，该方法还包括：
在所述DAC与功放管之间设置电压比较器，所述电压比较器的两个输入电压分别为DAC输出的参考电压以及到达功放管的栅极电压，输出端与 MCU相连。
本发明实施例还提供了一种存储介质，该存储介质包括一组指令，当执行所述指令时，引起至少一个处理器执行上文所述的操作。
本发明实施例还提供了一种功放栅压的调节装置，包括：MCU、DAC和功放管；所述MCU包括：获取模块、比较模块和运行模块；其中，
所述获取模块，配置为系统运行过程中，获取外界环境参数和/或DAC输出到功放管的栅压值；
所述比较模块，配置为将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，并将所述比较结果通知所述运行模块；
所述运行模块，配置为确定所述比较结果超过预设的门限值时，将所述DAC输出到功放管的栅压值恢复设置为初始值；或者，配置为确定所述外界环境参数超过预设的门限值时，将所述外界环境参数恢复设置为正常值。
在一个实施例中，该装置还包括：所述DAC与所述功放管之间设置的分压电阻，所述分压电阻一端接地，另一端与所述功放管的栅极相连。
在一个实施例中，该装置还包括：所述DAC与所述功放管之间设置的稳压二极管，所述稳压二极管正极接地，负极与所述功放管的栅极相连。
在一个实施例中，该装置还包括：所述DAC与功放管之间设置的电压比较器，所述电压比较器的两个输入端分别与DAC以及功放管的栅极相连，输出端与MCU相连。
本发明实施例提供的功放栅压的调节方法、装置和存储介质，系统运行过程中，获取外界环境参数和/或DAC输出到功放管的栅压值，并将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，如果超过预设的门限值，则将所述DAC输出到功放管的栅压值恢复设置为初始值；或者，如果所述外界环境参数超过预设的门限值，则将所述外界环境参数恢复设 置为正常值。本发明实施例根据外界环境的变化和/或DAC输出到功放管的栅压值的变化自动调整DAC输出到功放管的栅压，使得射频功率放大器单元/模块的功放管的栅极电压工作在正常工作范围，避免在设备出现异常时，或硬件受到外界干扰或其他异常时功放管的栅极电压出现异常，从而保证系统的正常工作。
附图说明
在附图(其不一定是按比例绘制的)中，相似的附图标记可在不同的视图中描述相似的部件。具有不同字母后缀的相似附图标记可表示相似部件的不同示例。附图以示例而非限制的方式大体示出了本文中所讨论的各个实施例。
图1为本发明实施例所述功放栅压的调节方法流程示意图；
图2为本发明实施例所述设置有分压电阻的栅压调节电路示意图；
图3为本发明实施例所述设置有稳压二极管的栅压调节电路示意图；
图4为本发明实施例所述设置有电压比较器的栅压调节电路示意图；
图5为本发明实施例所述的功放栅压调节装置中的MCU的结构示意图。
具体实施方式
本发明的实施例中，系统运行过程中，获取外界环境参数和/或DAC输出到功放管的栅压值，并将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，如果超过预设的门限值，则将所述DAC输出到功放管的栅压值恢复设置为初始值；或者，如果所述外界环境参数超过预设的门限值，则将所述外界环境参数恢复设置为正常值。
下面结合附图及具体实施例对本发明作进一步详细说明。
图1为本发明实施例所述功放栅压的调节方法流程示意图，如图1所 示，该方法包括：
步骤101：系统运行过程中，获取外界环境参数和/或DAC输出到功放管的栅压值；
本发明实施例中，在系统运行过程中，可通过内部(单板中)的多个传感器或系统内部通信获取外界环境参数，例如：温度参数、频率参数、功率参数、载波形式参数，如：几载波，以及信号质量参数等，对于环境参数，可采用如下采样方法：对外界环境参数进行间隔采样，所述间隔的时间相同或者不同。对于DAC输出到功放管的栅压值，也可采用间隔采样的方法进行获取，间隔的时间相同或者不同。
这里，进行外界环境参数的获取时，例如对温度进行采样时，可在同一时刻对多个传感器进行温度测量。
步骤102：将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，如果超过预设的门限值，则将所述DAC输出到功放管的栅压值恢复设置为初始值；或者，如果所述外界环境参数超过预设的门限值，则将所述外界环境参数恢复设置为正常值；
这里，基于上述对外界环境参数和/或DAC输出到功放管的栅压值的间隔采样获取的数值，并利用预设的门限值分别对所述外界环境参数和/或DAC输出到功放管的栅压值进行趋势判断和上限判断，例如，
对于利用预设的门限值进行的趋势判断，为：对相邻或不同间隔间的外界环境的采样数值进行做差处理，将差值与预设的门限值，如：已经保存在ROM中的门限值进行比较，如果超过预设的门限值，进行告警上报，并将所述DAC输出到功放管的栅压值恢复设置为初始值；当然，还可进行同设备多个环境因素的比较判断，例如：一个设备中相同功能的传感器可以放置多个，以温度来说，在一个温度传感器出现异常后，可切换至另一个温度传感器进行外界环境参数的获取，从而恢复正常调节功能；此外， 还可进行相同地理环境多模块上传到传感器的环境数据的比较判断，例如使用编号的方法：在地理环境参数相同的情况下，这些设备可通过上传自身的传感器数据，并在后台进行判断比较，如将一个区域内的所有基站将自身传感器数据上传至服务器，如果某一个设备温度明显偏高，处理方法与上述超过门限值的处理方法相同。该判断可避免DAC输出到功放管的栅压值因环境因素发生的跳变，保证栅压值的稳定，维持整个系统的正常运行。
另外，对相邻或不同间隔间的DAC输出到功放管的栅压值进行做差处理，将差值与预设的门限值进行比较，如果超过预设的门限值，进行告警上报，并依据调整策略将所述DAC输出到功放管的栅压值恢复设置为初始值。
对于利用预设的门限值进行的上限判断，为：将每个间隔采样获得的外界环境参数进行同一时刻(或其他相同维度下)的数值比较，并与存储在ROM中的预设的门限值进行比较，如果超过预设的门限值，可进行告警上报，并将所述DAC输出到功放管的栅压值恢复设置为初始值。这里，所述同一时刻是指在设备中具备多个相同功能的传感器进行比较时，时间点必须是相同的；另外，采样数据的判断应当是在连续时间下进行判断，即：对每个采样数据均进行判断。例如：同设备在同一时刻进行温度传感器的读取，并进行比较；或者，对两次或多次连续的间隔采样获取的温度值进行比较判断，若有跳变，处理方法与上述超过门限值的处理方法相同。这里，也可将上述外界环境参数设置为正常数值，相应的，所述DAC输出到功放管的栅压值也会恢复到正常值。
另外，将每个间隔采样获得的DAC输出到功放管的栅压值与预设的门限值进行比较，如果超过预设的门限值，可进行告警上报，并将所述DAC输出到功放管的栅压值恢复设置为初始值。
这里，如果所述外界环境参数超过预设的门限值，则将所述外界环境参数恢复设置为正常值，例如：如果设备上有多个环境参数传感器，如温度传感器，则可将异常的外界环境参数切换为其他环境参数传感器对应的正常的外界环境参数，从而可相应将栅压值恢复到正常值。
在本发明的一个实施例中，该方法还包括：根据经验值设置进行比较判断所需的门限值，并将所述门限值存储在ROM中。
其中，由于外界环境参数与DAC输出到功放管的栅压值之间存在一定的关系，外界环境参数变化会导致DAC输出到功放管的栅压值发生变化，因此，可依据经验值设置与环境参数对应的门限值。
在本发明的一个实施例中，该方法还包括：根据经验值设置依据外界环境参数恢复设置DAC输出到功放管的栅压值的调整策略，并将所述调整策略存储在ROM中。
当然，本发明实施例还可基于上述对外界环境参数和/或DAC输出到功放管的栅压值的间隔采样获取的数值，并利用预设的门限值分别进行下限判断，例如：将每个采样值与预设的下限门限进行比较，如果低于门限值，则进行告警，并进行恢复设置，具体实现方法与上文上限判断类似，此处不再详述。
本发明实施例根据外界环境的变化和/或DAC输出到功放管的栅压值的变化自动调整DAC输出到功放管的栅压，使得射频功率放大器单元/模块的功放管的栅极电压工作在正常工作范围，避免在设备出现异常时，或硬件受到外界干扰或其他异常时功放管的栅极电压出现异常，从而保证系统的正常工作。
在本发明的一个实施例中，该方法还包括：在所述DAC与功放管之间设置分压电阻，所述分压电阻一端接地，另一端与功放管的栅极相连。
如图2所示，所述电阻2为设置的分压电阻，所述传感器1、2…n， MCU、DAC以及ROM、电阻1为已有模块。如果DAC输出到功放管的栅压值过大，所述电阻2会分担部分电压，使得到达功放管栅极处的电压降低。因此，通过设置适当阻值的分压电阻，即：电阻2的设置，可进一步防止DAC输出到功放管的栅压值过大导致的栅压异常，从而进一步保证系统的正常工作。
在本发明的一个实施例中，该方法还包括：在所述DAC与功放管之间设置稳压二极管，所述稳压二极管正极接地，负极与功放管的栅极相连。
所述稳压二极管如图3所示，所述传感器1、2…n，MCU、DAC以及ROM、电阻1为已有模块。如果DAC输出到功放管的栅压值过大，依据稳压二极管的工作原理可知，利用二极管的反向截止特性，可将过大的电压限制在一定范围内，如控制DAC输出到功放管的栅压值始终小于允许的最大值，使得到达功放管栅极处的电压降低。因此，本发明实施例可进一步防止DAC输出到功放管的栅压值过大导致的栅压异常，从而进一步保证系统的正常工作。
在本发明的一个实施例中，该方法还包括：在所述DAC与功放管之间设置电压比较器，所述电压比较器的两个输入电压分别为DAC输出的参考电压以及到达功放管的栅极电压，输出端与MCU相连。
所述电压比较器如图4所示，所述传感器1、2…n，MCU、DAC以及ROM、电阻1为已有模块。电压比较器将到达功放管的栅极电压与DAC输出的参考电压进行比较，如果差值超出告警门限后，电压比较器则可通知MCU关闭栅极电压。这里，所述告警门限可设置为所述功放管所能承受的最大栅极电压。因此，本发明实施例可进一步防止DAC输出到功放管的栅压值过大导致的栅压异常，从而进一步保证系统的正常工作。
本发明实施例还提供了一种功放栅压的调节装置，包括：MCU、DAC和功放管；所述MCU如图5所示，包括：获取模块50、比较模块52和运 行模块54；其中，
所述获取模块50，可通过所述MCU中的CPU实现，配置为系统运行过程中，获取外界环境参数和/或DAC输出到功放管的栅压值；
本发明实施例中，在系统运行过程中，可通过内部(单板中)的多个传感器或系统内部通信获取外界环境参数，例如：温度参数等，对于环境参数，可采用如下采样方法：对外界环境参数进行间隔采样，所述间隔的时间相同或者不同。对于DAC输出到功放管的栅压值，也可采用间隔采样的方法进行获取，间隔的时间相同或者不同。
所述比较模块52，可通过所述MCU中的比较器实现，配置为将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，并将所述比较结果通知所述运行模块54；
这里，基于上述对外界环境参数和/或DAC输出到功放管的栅压值的间隔采样获取的数值，并利用预设的门限值分别对所述外界环境参数和/或DAC输出到功放管的栅压值进行趋势判断和上限判断。
所述运行模块54，可通过所述MCU中的CPU实现，配置为确定所述比较结果超过预设的门限值时，将所述DAC输出到功放管的栅压值恢复设置为初始值；或者，配置为确定所述外界环境参数超过预设的门限值时，将所述外界环境参数恢复设置为正常值；
例如，对于利用预设的门限值进行的趋势判断，为：对相邻或不同间隔间的外界环境的采样数值进行做差处理，将差值与预设的门限值，如：已经保存在ROM中的门限值进行比较，如果超过预设的门限值，进行告警上报，并将所述DAC输出到功放管的栅压值恢复设置为初始值；当然，还可进行同设备多个环境因素的比较判断；相同地理环境多模块上传到传感器的环境数据的比较判断。该判断可避免DAC输出到功放管的栅压值因环境因素发生的跳变，保证栅压值的稳定，维持整个系统的正常运行。
另外，对相邻或不同间隔间的DAC输出到功放管的栅压值进行做差处理，将差值与预设的门限值进行比较，如果超过预设的门限值，进行告警上报，并依据调整策略将所述DAC输出到功放管的栅压值恢复设置为初始值。
对于利用预设的门限值进行的上限判断，为：将每个间隔采样获得的外界环境参数进行同一时刻(或其他相同维度下)的数值比较，并与存储在ROM中的预设的门限值进行比较，如果超过预设的门限值，可进行告警上报，并将所述DAC输出到功放管的栅压值恢复设置为初始值。这里，也可将上述外界环境参数设置为正常数值，相应的，所述DAC输出到功放管的栅压值也会恢复到正常值。
另外，将每个间隔采样获得的DAC输出到功放管的栅压值与预设的门限值进行比较，如果超过预设的门限值，可进行告警上报，并将所述DAC输出到功放管的栅压值恢复设置为初始值。
这里，所述运行模块确定所述外界环境参数超过预设的门限值时，将所述外界环境参数恢复设置为正常值；例如：如果设备上有多个环境参数传感器，如温度传感器，则可将异常的外界环境参数切换为其他环境参数传感器对应的正常的外界环境参数，从而可相应将栅压值恢复到正常值。
在本发明的一个实施例中，该方法还包括：根据经验值设置进行比较判断所需的门限值，并将所述门限值存储在ROM中。
其中，由于外界环境参数与DAC输出到功放管的栅压值之间存在一定的关系，外界环境参数变化会导致DAC输出到功放管的栅压值发生变化，因此，可依据经验值设置与环境参数对应的门限值。
在本发明一个实施例中，如图2所示，该装置还包括：所述DAC与所述功放管之间设置的分压电阻，所述分压电阻一端接地，另一端与所述功放管的栅极相连。
在本发明一个实施例中，如图3所示，该装置还包括：所述DAC与所述功放管之间设置的稳压二极管，所述稳压二极管正极接地，负极与所述功放管的栅极相连。
在本发明一个实施例中，如图4所示，该装置还包括：所述DAC与功放管之间设置的电压比较器，所述电压比较器的两个输入端分别与DAC以及功放管的栅极相连，输出端与MCU相连。
本发明实施例还提供了一种存储介质，该存储介质包括一组指令，当执行所述指令时，引起至少一个处理器执行上文所述的操作。
本发明实施例根据外界环境的变化和/或DAC输出到功放管的栅压值的变化自动调整DAC输出到功放管的栅压，使得射频功率放大器单元/模块的功放管的栅极电压工作在正常工作范围，避免在设备出现异常时，或硬件受到外界干扰或其他异常时功放管的栅极电压出现异常，从而保证系统的正常工作。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功 能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。

Claims (11)

  1. 一种功放栅压的调节方法，该方法包括：
    系统运行过程中，获取外界环境参数和/或DAC输出到功放管的栅压值，并将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，如果超过预设的门限值，则将所述DAC输出到功放管的栅压值恢复设置为初始值；或者，
    如果所述外界环境参数超过预设的门限值，则将所述外界环境参数恢复设置为正常值。
  2. 根据权利要求1所述的调节方法，其中，所述获取外界环境参数和/或DAC输出到功放管的栅压值为：
    对所述外界环境参数和/或DAC输出到功放管的栅压值进行间隔采样，所述间隔的时间相同或者不同。
  3. 根据权利要求2所述的调节方法，其中，所述将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，包括：
    基于所述对外界环境参数和/或DAC输出到功放管的栅压值的间隔采样获取的数值，并利用预设的门限值分别对所述外界环境参数和/或DAC输出到功放管的栅压值进行趋势判断和上限判断。
  4. 根据权利要求1、2或3所述的调节方法，其中，该方法还包括：
    在所述DAC与功放管之间设置分压电阻，所述分压电阻一端接地，另一端与功放管的栅极相连。
  5. 根据权利要求1、2或3所述的调节方法，其中，该方法还包括：
    在所述DAC与功放管之间设置稳压二极管，所述稳压二极管正极接地，负极与功放管的栅极相连。
  6. 根据权利要求1、2或3所述的调节方法，其中，该方法还包括：
    在所述DAC与功放管之间设置电压比较器，所述电压比较器的两个输 入电压分别为DAC输出的参考电压以及到达功放管的栅极电压，输出端与MCU相连。
  7. 一种功放栅压的调节装置，包括：MCU、DAC和功放管；所述MCU包括：获取模块、比较模块和运行模块；其中，
    所述获取模块，配置为系统运行过程中，获取外界环境参数和/或DAC输出到功放管的栅压值；
    所述比较模块，配置为将所述外界环境参数和/或所述栅压值与预设的门限值进行比较，并将所述比较结果通知所述运行模块；
    所述运行模块，配置为确定所述比较结果超过预设的门限值时，将所述DAC输出到功放管的栅压值恢复设置为初始值；或者，配置为确定所述外界环境参数超过预设的门限值时，将所述外界环境参数恢复设置为正常值。
  8. 根据权利要求7所述的装置，其中，该装置还包括：所述DAC与所述功放管之间设置的分压电阻，所述分压电阻一端接地，另一端与所述功放管的栅极相连。
  9. 根据权利要求7或8所述的装置，其中，该装置还包括：所述DAC与所述功放管之间设置的稳压二极管，所述稳压二极管正极接地，负极与所述功放管的栅极相连。
  10. 根据权利要求7或8所述的装置，其中，该装置还包括：所述DAC与功放管之间设置的电压比较器，所述电压比较器的两个输入端分别与DAC以及功放管的栅极相连，输出端与MCU相连。
  11. 一种存储介质，该存储介质包括一组指令，当执行所述指令时，引起至少一个处理器执行权利要求1-6中任一项所述的操作。
PCT/CN2015/074422 2014-08-22 2015-03-17 一种功放栅压的调节方法、装置和存储介质 WO2016026292A1 (zh)

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