CN103391055B - DPD MCPA power-on protection method and device and DPD MCPA device - Google Patents
DPD MCPA power-on protection method and device and DPD MCPA device Download PDFInfo
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- CN103391055B CN103391055B CN201310307371.XA CN201310307371A CN103391055B CN 103391055 B CN103391055 B CN 103391055B CN 201310307371 A CN201310307371 A CN 201310307371A CN 103391055 B CN103391055 B CN 103391055B
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Abstract
A kind of DPD? MCPA power-on protection method and device and DPD? MCPA device; after power amplifier unit and MCU unit are powered; close power amplifier grid voltage, according to the supply line setting in advance, each subelement in signal processing unit is powered on according to predefined procedure. Do you guarantee DPD? MCPA is after powering on, and each subelement of system is given power amplifier input signal again after all normally working, and the signal that guarantee is input to power amplifier is satisfactory signal, reaches the object of protection power amplifier. The present invention can make power amplifier in power up, can not cause power amplifier to burn because of the abnormal input in power up, improves stability and the reliability of system.
Description
Technical field
The present invention relates to power amplifier protection field, particularly relate to a kind of DPDMCPA power-on protection method and device.
Background technology
At present, DPDMCPA(DigitalPre-DistortionMulti-CarrierPowerAmplifier, based on numeral and the Multi-Carrier Power Amplifier of distortion technology) product playing the part of important role in the network coverage. For other multicarrier wave power amplifier, DPDMCPA has good linearity, efficiency high. But because its mode by digital pre-distortion reaches the object of linear optimization; in the course of the work inevitably can be because abnormal in Digital Signal Processing; there is abnormal high power or abnormal high spuious etc. in the signal that makes to input power amplifier; burn power amplifier, many resist technologies have therefore been born.
General DPDMCPA guard method and device are only protected in the power amplifier course of work, do not relate to the protection in power up, therefore how in power up, to protect power amplifier, are deficiencies in existing multicarrier wave power amplifier safeguard measure.
Summary of the invention
Based on this, be necessary the problem in deficiency aspect upper electric protection for existing DPDMCPA safeguard measure, a kind of DPDMCPA power-on protection method and device are provided.
A kind of DPDMCPA power-on protection method, comprises step:
In the time that power amplifier unit and control module are powered, close power amplifier grid voltage, according to the supply line setting in advance, each subelement in signal processing unit is powered on according to predefined procedure;
The configuring condition of each subelement after powering in detection signal processing unit, if configuration failure provides alarm, until the equal configuration successful of each subelement in signal processing unit;
Open power amplifier grid voltage, power amplifier grid voltage and predefined voltage are compared, if power amplifier grid voltage provides alarm lower than predefined voltage;
Passing through the ALC(AutomaticLevelControl of control module control inputs control module, automatic electric-level control) voltage is increased in the process of predetermined value gradually, input power detecting unit detected to the testing result Input Control Element of input power amplifier cell signal;
Signal value and the predefined threshold value of the input power amplifier unit that detection is obtained compare processing, until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal value of the input power amplifier unit obtaining higher than predefined threshold value, the up-conversion unit in signal processing unit carried out to power down process, and provide alarm.
In an embodiment, the upper electrical protective device of a kind of DPDMCPA, comprises and controls upper electric unit, configuration detection Alarm Unit, the contrast of power amplifier grid voltage alarm unit, power amplifier unit signal detection transmission unit and control module therein;
In described control, electric unit, in the time that power amplifier unit and control module are powered, is closed power amplifier grid voltage, according to the supply line setting in advance, each subelement in signal processing unit is powered on according to predefined procedure;
Configuring condition after described configuration detection Alarm Unit powers on for detection of each subelement in signal processing unit, if configuration failure provides alarm, until the equal configuration successful of each subelement in signal processing unit;
Described power amplifier grid voltage contrast alarm unit is used for opening power amplifier grid voltage, power amplifier grid voltage and predefined voltage is compared, if power amplifier grid voltage provides alarm lower than predefined voltage;
Described power amplifier unit signal detection transmission unit, in the process that is increased to gradually predetermined value by the ALC voltage of control module control inputs control module, detects input power detecting unit the testing result Input Control Element of input power amplifier cell signal;
Signal value and predefined threshold value that described control module is used for the input power amplifier unit that detection is obtained compare processing, until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal value of the input power amplifier unit obtaining higher than predefined threshold value, the up-conversion unit in signal processing unit carried out to power down process, and provide alarm.
Therein in an embodiment, a kind of DPDMCPA device, comprise signal processing unit, power amplifier unit and the integrated MCU unit of the upper electrical protective device of above-mentioned DPDMCPA, described power amplifier unit also comprises Input Control Element, input power detecting unit and power amplifier control module;
Described signal processing unit and described power amplifier unit receive the control command of described MCU unit transmission and carry out corresponding function; Described MCU unit connects respectively described signal processing unit, described Input Control Element, described input power detecting unit and described power amplifier control module, and described signal processing unit connects described Input Control Element;
Described MCU unit powers on according to predefined procedure for each subelement of control signal processing unit, and each subelement is controlled after configuration successful and opened power amplifier grid voltage after powering in signal processing unit, while regulating the ALC voltage of control inputs control module to be increased to predetermined value gradually, guarantee that the signal value of inputting power amplifier unit does not exceed predefined threshold value.
Above-mentioned DPDMCPA power-on protection method and device and DPDMCPA device, first in the time that power amplifier unit and control module are powered, close power amplifier grid voltage by described control module control power amplifier control module, according to the supply line setting in advance, each subelement in signal processing unit is powered on according to predefined procedure again, configuring condition after being powered on by each subelement in described control module control detection signal processing unit, guarantee to control again power amplifier control module unlatching power amplifier grid voltage after configuration successful, power amplifier grid voltage and predefined voltage are compared, if power amplifier grid voltage provides alarm lower than predefined voltage. guarantee the correct and power amplifier grid voltage of the configuration of whole power up normally. being increased to gradually in the process of predetermined value by the ALC voltage of control module control inputs control module, signal value and the predefined threshold value of the input power amplifier unit that described control module obtains detection compare processing, until the ALC voltage of Input Control Element reaches predetermined value, if detect the signal value of the input power amplifier unit obtaining higher than predefined threshold value, the up-conversion unit in signal processing unit is carried out to power down process, and provide alarm, if the testing result of input power detecting unit is lower than predefined threshold value, do not deal with. system configures correctly in whole power up, voltage is normal and input power does not exceed the aspects such as threshold value and guarantee the safety of power amplifier, adopt the mode that increases gradually ALC voltage to make the ALC voltage of described Input Control Element reach predetermined value, further effectively guarantee the safety that powers on of DPDMCPA power amplifier.
Brief description of the drawings
Fig. 1 is the wherein method flow diagram of a kind of embodiment of DPDMCPA power-on protection method;
Fig. 2 is the upper wherein module connection layout of a kind of embodiment of electrical protective device of DPDMCPA;
Fig. 3 is the wherein module connection layout of a kind of embodiment of DPDMCPA device;
Fig. 4 be DPDMCPA device wherein the module by signal of another kind of embodiment move towards figure.
Detailed description of the invention
As shown in Figure 1, a kind of DPDMCPA power-on protection method, comprises step:
Step S110, in the time that power amplifier unit and control module are powered, closes power amplifier grid voltage, according to the supply line setting in advance, each subelement in signal processing unit is powered on according to predefined procedure. What first to power amplifier unit and control module, power supply can realize by hardware circuit in the present embodiment: control module and power amplifier unit power supply circuits are worked immediately after system powers on, the power supply of signal processing unit is after the normal work of control module, power supply chip by inside, control module control DC-DC unit is started working in order, thereby realize, signal processing unit is powered in order, close power amplifier grid voltage and can effectively avoid in the time starting power amplifier unit, cause burning of power amplifier unit because signal processing unit configuration is unsuccessful.
Step S120, the configuring condition of each subelement after powering in detection signal processing unit, if configuration failure provides alarm, until the equal configuration successful of each subelement in signal processing unit; In the present embodiment, after detection signal processing unit configuration failure, system proposes alarm and is again configured, if configuration successful system does not deal with, guarantee that the subelement configuration successful in signal processing unit just can carry out the configuration detection of next subelement in signal processing unit, guarantee that in signal processing unit, each subelement configuration successful just can be carried out next step operation, eliminate because signal processing unit arrangement abnormalities makes high power signals be input to the possible factor of power amplifier.
Step S130, opens power amplifier grid voltage, power amplifier grid voltage and predefined voltage is compared, if power amplifier grid voltage provides alarm lower than predefined voltage; In the present embodiment, power amplifier grid voltage and predefined voltage are compared, if power amplifier grid voltage provides alarm lower than predefined voltage, continue follow-up step if power amplifier grid voltage is equal to or higher than predefined voltage, can effectively guarantee that power amplifier grid voltage meets the required operating voltage requirement of power amplifier unit.
Step S140, being increased to gradually in the process of predetermined value by the ALC voltage of control module control inputs control module, detects input power detecting unit the testing result Input Control Element of input power amplifier cell signal. In the present embodiment, described input power detecting unit can detect by detection tube the signal of input power amplifier unit, and by testing result Input Control Element.
Step S150, signal value and the predefined threshold value of the input power amplifier unit that detection is obtained compare processing, until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal value of the input power amplifier unit obtaining higher than predefined threshold value, the up-conversion unit in signal processing unit carried out to power down process, and provide alarm. In the present embodiment, predefined threshold value can be a less value because be no signal input system in system power up, therefore input under normal circumstances the performance number of power amplifier be one close to zero performance number; If there is a larger power to occur having circuit working abnormal in representation signal processing unit, provide alarm, if the testing result of input power detecting unit is lower than predefined threshold value, do not deal with.
Above-mentioned DPDMCPA power-on protection method; first in the time that power amplifier unit and control module are powered; close power amplifier grid voltage by described control module control; according to the supply line setting in advance, each subelement in signal processing unit is powered on according to predefined procedure again; configuring condition after being powered on by each subelement in described control module control detection signal processing unit; guarantee to control again unlatching power amplifier grid voltage after configuration successful; power amplifier grid voltage and predefined voltage are compared, if power amplifier grid voltage provides alarm lower than predefined voltage. Guarantee the correct and power amplifier grid voltage of the configuration of whole power up normally. Being increased to gradually in the process of predetermined value by the ALC voltage of control module control inputs control module, signal value and the predefined threshold value of the input power amplifier unit that described control module obtains detection compare processing, until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal value of the input power amplifier unit obtaining higher than predefined threshold value, the up-conversion unit in signal processing unit is carried out to power down process, and provide alarm, if the testing result of input power detecting unit is lower than predefined threshold value, do not deal with. System configures correctly in whole power up, voltage is normal and input power does not exceed the aspects such as threshold value and guarantee the safety of power amplifier, adopt the mode that increases gradually ALC voltage to make the ALC voltage of described Input Control Element reach predetermined value, further effectively guarantee the safety that powers on of DPDMCPA power amplifier.
Therein in an embodiment, described DPDMCPA power-on protection method, described in set in advance supply line and specifically comprise step:
Set first control line control the first supply line, set second control line control the second supply line, set the 3rd control line control the 3rd supply line, set the 4th control line control the 4th supply line. In the present embodiment, can be chosen in the first control line is control line SW1, and the second control line is control line SW2, and the 3rd control line is control line SW3, and the 4th control line is control line SW4, sets described control line SW1 and controls the described V1 of supply line; Described control line SW2 controls the described V2 of supply line; Described control line SW3 controls the described V3 of supply line; Described control line SW4 controls the described V4 of supply line.
As shown in Figure 2, therein in an embodiment, the upper electrical protective device of a kind of DPDMCPA, comprises and controls upper electric unit 110, configuration detection Alarm Unit 120, the contrast of power amplifier grid voltage alarm unit 130, power amplifier unit signal detection transmission unit 140 and control module 150;
In described control, electric unit 110, in the time that power amplifier unit and control module 150 are powered, is closed power amplifier grid voltage, according to the supply line setting in advance, each subelement in signal processing unit is powered on according to predefined procedure;
Configuring condition after described configuration detection Alarm Unit 120 powers on for detection of each subelement in signal processing unit, if configuration failure provides alarm, until the equal configuration successful of each subelement in signal processing unit;
Described power amplifier grid voltage contrast alarm unit 130, for opening power amplifier grid voltage, compares power amplifier grid voltage and predefined voltage, if power amplifier grid voltage provides alarm lower than predefined voltage;
Described power amplifier unit signal detection transmission unit 140, for the process be increased to gradually predetermined value by the ALC voltage of control module 150 control inputs control modules 150, detects input power detecting unit the testing result Input Control Element 150 of input power amplifier cell signal;
Described control module 150 compares processing for signal value and the predefined threshold value of input power amplifier unit that detection is obtained, until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal value of the input power amplifier unit obtaining higher than predefined threshold value, the up-conversion unit in signal processing unit carried out to power down process, and provide alarm.
The upper electrical protective device of above-mentioned DPDMCPA, first in the time that power amplifier unit and control module are powered, close power amplifier grid voltage by described control module control power amplifier control module, according to the supply line setting in advance, each subelement in signal processing unit is powered on according to predefined procedure again, configuring condition after being powered on by each subelement in described control module control detection signal processing unit, guarantee to control again power amplifier control module unlatching power amplifier grid voltage after configuration successful, power amplifier grid voltage and predefined voltage are compared, if power amplifier grid voltage provides alarm lower than predefined voltage. guarantee the correct and power amplifier grid voltage of the configuration of whole power up normally. being increased to gradually in the process of predetermined value by the ALC voltage of control module control inputs control module, signal value and the predefined threshold value of the input power amplifier unit that described control module obtains detection compare processing, until the ALC voltage of Input Control Element reaches predetermined value, if detect the signal value of the input power amplifier unit obtaining higher than predefined threshold value, the up-conversion unit in signal processing unit is carried out to power down process, and provide alarm, if the testing result of input power detecting unit is lower than predefined threshold value, do not deal with. system configures correctly in whole power up, voltage is normal and input power does not exceed the aspects such as threshold value and guarantee the safety of power amplifier, adopt the mode that increases gradually ALC voltage to make the ALC voltage of described Input Control Element reach predetermined value, further effectively guarantee the safety that powers on of DPDMCPA power amplifier.
In an embodiment, the upper electrical protective device of described DPDMCPA, also comprises supply line's setup unit therein; Described supply line setup unit is set first control line control the first supply line, sets second control line control the second supply line, sets the 3rd control line control the 3rd supply line, sets the 4th control line control the 4th supply line.
Because upper other part technical characterictics of electrical protective device of described DPDMCPA are identical with said method, do not repeat them here.
As shown in Figure 3, therein in an embodiment, a kind of DPDMCPA device, comprise signal processing unit 210, power amplifier unit 220 and the integrated MCU unit 230 of the upper electrical protective device of above-mentioned DPDMCPA, described power amplifier unit 220 also comprises Input Control Element 222, input power detecting unit 224 and power amplifier control module 226;
Described signal processing unit 210 and described power amplifier unit 220 receive the control command execution function corresponding with described control command that described MCU unit 230 sends; Described MCU unit 230 connects respectively described signal processing unit 210, described Input Control Element 222, described input power detecting unit 224 and described power amplifier control module 226, and described signal processing unit 210 connects described Input Control Element 222;
Described MCU unit 230 powers on according to predefined procedure for control signal processing unit 210 each subelements, and each subelement is controlled after configuration successful and opened power amplifier grid voltage after powering in signal processing unit 210, while regulating the ALC voltage of control inputs control module 222 to be increased to predetermined value gradually, guarantee that the signal value of inputting power amplifier unit 220 does not exceed predefined threshold value.
In the present embodiment, radiofrequency signal can enter RF_IN interface, then carrying out DPD processing through signal processing unit 210 is then sent to power amplifier unit 220 and amplifies, the part signal that coupling power amplifier unit 220 is exported, enter into signal processing unit 210 by FB_IN, the signal feedback that power amplifier is exported is to signal processing unit 210, signal processing unit 210 carries out DPD processing according to the power amplifier output signal of feedback to radiofrequency signal. what first to power amplifier unit 220 and MCU unit, 230 power supplies can realize by hardware circuit in the present embodiment: MCU unit 230 and power amplifier unit 220 power supply circuits are worked immediately after system powers on, the power supply of signal processing unit 210 is after the normal work in MCU unit 230, controlled the power supply chip of inside, DC-DC unit starts working in order by MCU unit 230, thereby realize, signal processing unit 210 is powered in order, closing power amplifier grid voltage can effectively avoid in the time starting power amplifier unit 220, because signal processing unit 210 configures unsuccessful and causes burning of power amplifier unit 220. after detection signal processing unit 210 configuration failures, system proposes alarm and is again configured, signal processing unit 210 configuration successfuls just can be carried out next cell location detection, guarantee each subelement configuration successful in signal processing unit 210, eliminate because signal processing unit 210 arrangement abnormalities make high power signals be input to the possible factor of power amplifier. described MCU unit 230 can also compare power amplifier grid voltage and predefined voltage, effectively guarantees that power amplifier grid voltage meets the required operating voltage requirement of power amplifier unit 220. the testing result of input power detecting unit 224 and predefined threshold value are compared processing by final described MCU unit 230, until the ALC voltage of Input Control Element 222 reaches predetermined value, if the testing result of input power detecting unit 224 is higher than predefined threshold value, the up-conversion unit in signal processing unit 210 is carried out to power down process, and provide alarm, if the testing result of input power detecting unit 224 is lower than predefined threshold value, do not deal with. in the present embodiment, predefined threshold value can be a less value because be no signal input system in system power up, therefore input under normal circumstances the performance number of power amplifier be one close to zero performance number, if have a larger power to occur having circuit working abnormal in representation signal processing unit 210, provide alarm.
Above-mentioned DPDMCPA device, first power amplifier unit and MCU unit are powered, close power amplifier grid voltage by described MCU unit controls, according to the supply line setting in advance, each subelement in signal processing unit is powered on according to predefined procedure again, configuring condition after being powered on by each subelement in described MCU unit controls detection signal processing unit, guarantee to control again unlatching power amplifier grid voltage after configuration successful, power amplifier grid voltage and predefined voltage are compared, if power amplifier grid voltage provides alarm lower than predefined voltage. Guarantee the correct and power amplifier grid voltage of the configuration of whole power up normally. Being increased to gradually in the process of predetermined value by the ALC voltage of MCU unit controls Input Control Element, signal value and the predefined threshold value of the input power amplifier unit that described MCU unit obtains detection compare processing, until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal value of the input power amplifier unit obtaining higher than predefined threshold value, the up-conversion unit in signal processing unit is carried out to power down process, and provide alarm, if the testing result of input power detecting unit is lower than predefined threshold value, do not deal with. System configures correctly in whole power up, voltage is normal and input power does not exceed the aspects such as threshold value and guarantee the safety of power amplifier, adopt the mode that increases gradually ALC voltage to make the ALC voltage of described Input Control Element reach predetermined value, further effectively guarantee the safety that powers on of power amplifier.
As shown in Figure 4, in an embodiment, described DPDMCPA device, also comprises DC-DC unit therein, and described DC-DC unit connects respectively described signal processing unit and described MCU unit. In the present embodiment, described DC-DC unit comprises multiple DC-DC conversion chips, for each chip power supply to system. Described DC-DC conversion chip can be converted into high voltage the needed voltage of chip, and can by the unit controls of MCU, whether it works, thus powering on of control system in order.
As shown in Figure 4, therein in an embodiment, described DPDMCPA device, described MCU unit also comprises four supply line's control lines. In the present embodiment, can be chosen in the first control line is control line SW1, and the second control line is control line SW2, and the 3rd control line is control line SW3, and the 4th control line is control line SW4, sets described control line SW1 and controls the described V1 of supply line; Described control line SW2 controls the described V2 of supply line; Described control line SW3 controls the described V3 of supply line; Described control line SW4 controls the described V4 of supply line.
As shown in Figure 4, therein in an embodiment, described DPDMCPA device, described signal processing unit comprises forward direction down-converter unit, feedback down-conversion unit, up-conversion unit, clock unit and digital processing element; Described digital processing element connects respectively described down-converter unit, described feedback down-conversion unit, described up-conversion unit and described clock unit. In the present embodiment, then described forward direction down-converter unit and feedback down-conversion unit are sent to digital processing element for radiofrequency signal is down-converted to intermediate-freuqncy signal, described up-conversion unit adopts up-conversion modulator, for the intermediate-freuqncy signal of DAC unit output is up-converted to radiofrequency signal output, what described clock unit adopted is Clock management chip, for providing work clock to digital processing element, described digital processing element can carry out digital processing to input signal.
As shown in Figure 4, therein in an embodiment, described DPDMCPA device, described digital processing element comprises the ADC unit, Signal Pretreatment unit, DPD unit and the DAC unit that connect successively; Described ADC unit connects described feedback down-conversion unit. Described ADC unit is for being converted to data signal and processing sending into Signal Pretreatment unit the analog signal of forward direction and feedback; Described Signal Pretreatment unit is for carrying out digital ALC and power detection pretreatment to being input to the signal of DPD unit; Described DPD unit is for carrying out DPD processing to the forward signal of input; Described DAC unit is for being converted to analog if signal by the data signal after DPD cell processing.
Therein in an embodiment, described DPDMCPA device, described ADC unit adopts two ADC chips, and what described Signal Pretreatment unit adopted is fpga chip or dsp chip, what described DPD unit adopted is DPD chip or dsp chip, and what described DAC unit adopted is a slice DAC chip. Described ADC unit adopts two ADC chips, and wherein a slice is converted to data signal to the analog signal of forward direction and feedback, and another sheet ADC chip is processed sending into Signal Pretreatment unit. What described Signal Pretreatment unit adopted is fpga chip or dsp chip, for the signal that is input to DPD unit being carried out to digital ALC and power detection pretreatment. What described DPD unit adopted is DPD chip or dsp chip, for the forward signal of input is carried out to DPD processing; What described DAC unit adopted is a slice DAC chip, for the data signal after DPD cell processing is converted to analog if signal.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the Multi-Carrier Power Amplifier power-on protection method with distortion technology based on numeral, its feature existsIn, comprise step:
In the time that power amplifier unit and control module are powered, close power amplifier grid voltage, according to the confession setting in advanceElectric line powers on according to predefined procedure to each subelement in signal processing unit;
The configuring condition of each subelement after powering in detection signal processing unit, if configuration failure provides announcementAlert, until the equal configuration successful of each subelement in signal processing unit;
Open power amplifier grid voltage, power amplifier grid voltage and predefined voltage compared, if power amplifier grid voltage lower thanPredefined voltage provides alarm;
In the process that is increased to gradually predetermined value by the ALC voltage of control module control inputs control moduleIn, input power detecting unit is detected to the testing result Input Control Element of inputting power amplifier cell signal;
Signal value and the predefined threshold value of the input power amplifier unit that detection is obtained compare processing,Until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal of the input power amplifier unit obtainingValue, higher than predefined threshold value, is carried out power down process to the up-conversion unit in signal processing unit,And provide alarm.
2. according to claim 1 based on numeral and the Multi-Carrier Power Amplifier of the distortion technology guarantor that powers onMaintaining method, is characterized in that, described in set in advance supply line and specifically comprise step:
Set first control line control the first supply line, set second control line control the second supply line,Set the 3rd control line control the 3rd supply line, set the 4th control line control the 4th supply line.
3. an electrical protective device on the Multi-Carrier Power Amplifier based on numeral and distortion technology, its feature existsIn, comprise and control upper electric unit, configuration detection Alarm Unit, power amplifier grid voltage contrast alarm unit, power amplifier listUnit's signal detection transmission unit and control module;
In described control, electric unit, in the time that power amplifier unit and control module are powered, is closed power amplifier gridPress, according to the supply line setting in advance, each subelement in signal processing unit is powered on according to predefined procedure;
Configuration after described configuration detection Alarm Unit powers on for detection of each subelement in signal processing unitSituation, if configuration failure provides alarm, until the equal configuration successful of each subelement in signal processing unit;
Described power amplifier grid voltage contrast alarm unit is used for opening power amplifier grid voltage, by power amplifier grid voltage and predefinedVoltage compares, if power amplifier grid voltage provides alarm lower than predefined voltage;
Described power amplifier unit signal detection transmission unit is for by control module control inputs control moduleALC voltage is increased in the process of predetermined value gradually, and input power detecting unit is detected to input power amplifier unitThe testing result Input Control Element of signal;
Described control module is used for signal value and the predefined thresholding of the input power amplifier unit that detection is obtainedValue compares processing, until the ALC voltage of Input Control Element reaches predetermined value; If detect obtain defeatedEnter the signal value of power amplifier unit higher than predefined threshold value, to the up-conversion list in signal processing unitUnit carries out power down process, and provides alarm.
4. according to claim 3 based on numeral and the Multi-Carrier Power Amplifier of the distortion technology guarantor that powers onProtection unit, is characterized in that, also comprises supply line's setup unit; Described supply line setup unit is setFirst control line control the first supply line, sets second control line control the second supply line, sets the 3rdControl line control the 3rd supply line, sets the 4th control line control the 4th supply line.
5. the Multi-Carrier Power Amplifier device with distortion technology based on numeral, is characterized in that, comprisesDescribed in signal processing unit, power amplifier unit and integrated the claims 3-4 any one based on numeral withThe MCU unit of electrical protective device on the Multi-Carrier Power Amplifier of distortion technology, described power amplifier unit also wrapsDraw together Input Control Element, input power detecting unit and power amplifier control module;
Described signal processing unit and described power amplifier unit receive the control command of described MCU unit transmission and holdThe function that row is corresponding with described control command; Described MCU unit connect respectively described signal processing unit,Described Input Control Element, described input power detecting unit and described power amplifier control module, described signal placeReason unit connects described Input Control Element;
Described MCU unit powers on according to predefined procedure for each subelement of control signal processing unit, and at letterIn number processing unit, each subelement is controlled after configuration successful and is opened power amplifier grid voltage after powering on, and regulates control inputs control listWhen being increased to predetermined value gradually, guarantees the ALC voltage of unit that the signal value of inputting power amplifier unit does not exceed predefined doorLimit value.
6. the Multi-Carrier Power Amplifier device based on numeral and distortion technology according to claim 5, its featureBe, also comprise DC-DC unit, described DC-DC unit connects respectively described signal processing unit and described MCUUnit.
7. the Multi-Carrier Power Amplifier device based on numeral and distortion technology according to claim 6, its featureBe, described MCU unit also comprises four supply line's control lines.
8. according to the Multi-Carrier Power Amplifier with distortion technology based on numeral described in claim 5 or 6 or 7Device, is characterized in that, described signal processing unit comprises forward direction down-converter unit, feedback down-conversion unit, upper changeFrequently unit, clock unit and digital processing element; Described digital processing element connects respectively described down-converter unit, instituteState feedback down-conversion unit, described up-conversion unit and described clock unit.
9. the Multi-Carrier Power Amplifier device based on numeral and distortion technology according to claim 8, its featureBe, described digital processing element comprise successively the ADC unit that connects, Signal Pretreatment unit, DPD unit andDAC unit; Described ADC unit connects described feedback down-conversion unit.
10. the Multi-Carrier Power Amplifier device based on numeral and distortion technology according to claim 9, its spyLevy and be, described ADC unit adopts two ADC chips, and what described Signal Pretreatment unit adopted is FPGA coreSheet or dsp chip, what described DPD unit adopted is DPD chip or dsp chip, described DAC adopts unitBe a slice DAC chip.
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| CN111274196B (en) * | 2018-12-05 | 2023-08-22 | 锐迪科（重庆）微电子科技有限公司 | Start control device and method |
| CN111835377B (en) * | 2020-08-19 | 2022-02-22 | 展讯通信（上海）有限公司 | Signal transceiving device and power-on and power-off method of transmitting module thereof |
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