CN103391055A - DPD MCPA (Digital Pre-Distortion Multi-Carrier Power Amplifier) electrification protective method and device, and DPD MCPA device - Google Patents
DPD MCPA (Digital Pre-Distortion Multi-Carrier Power Amplifier) electrification protective method and device, and DPD MCPA device Download PDFInfo
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Abstract
The invention discloses a DPD MCPA (Digital Pre-Distortion Multi-Carrier Power Amplifier) electrification protective method, a DPD MCPA electrification protective device, and a DPD MCPA device. After a power amplifier unit and an MCU (microprogrammed control unit) are electrified, power amplifier grid voltage is closed; according to a preset power supply circuit, each subunit in a signal processing unit is electrified according to a predetermined sequence. After the conditions that the DPD MCPA is electrified and each subunit in a system normally works are ensured, signals are input into a power amplifier, the signals which are input into the power amplifier are enabled to be signals which can meet requirements, and the aim of protecting the power amplifier is achieved. In the process that the power amplifier is electrified, the power amplifier cannot be burnt due to abnormal input in the electrifying process, and the stability and reliability of the system are improved.
Description
Technical field
The present invention relates to power amplifier protection field, particularly relate to a kind of DPD MCPA power-on protection method and device.
Background technology
At present, DPD MCPA(DigitalPre-Distortion Multi-Carrier Power Amplifier, 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, DPD MCPA has good linearity, efficiency high.Yet reach the purpose of linear optimization due to its mode by digital pre-distortion; in the course of the work inevitably can be because abnormal in Digital Signal Processing; make the signal of input power amplifier abnormal high power or abnormal high spuious etc. occur; burn power amplifier, many resist technologies therefore have been born.
General DPD MCPA guard method and device; only protect in the power amplifier course of work; not relating to the protection in power up, therefore how to protect power amplifier in power up, is a deficiency in existing multicarrier wave power amplifier safeguard measure.
Summary of the invention
Based on this, being necessary provides a kind of DPD MCPA power-on protection method and device for the problem of existing DPD MCPA safeguard measure in deficiency aspect upper electric protection.
A kind of DPD MCPA power-on protection method comprises step:
When power amplifier unit and control unit are powered, close the power amplifier grid voltage, according to the supply line that sets in advance, each subelement in signal processing unit is powered on according to predefined procedure;
Configuring condition after in the detection signal processing unit, each subelement powers on, if configuration failure provides alarm, until the equal configuration successful of each subelement in signal processing unit;
Open the power amplifier grid voltage, power amplifier grid voltage and predefined voltage are compared, if the power amplifier grid voltage provides alarm lower than predefined voltage;
At the ALC(Automatic Level Control by control unit control inputs control unit, automatic electric-level control) voltage increases in the process of predetermined value gradually, the input power detecting unit is detected 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 that obtains higher than predefined threshold value, the up-conversion unit in signal processing unit carried out power down process, and provide alarm.
In embodiment, electrical protective device on a kind of DPD MCPA, comprise and control upper electric unit, configuration detection Alarm Unit, the contrast of power amplifier grid voltage alarm unit, power amplifier unit input transmission unit and control unit therein;
In described control, electric unit is used for closing the power amplifier grid voltage when power amplifier unit and control unit are powered, and according to the supply line that sets in advance, each subelement in signal processing unit is powered on according to predefined procedure;
Described configuration detection Alarm Unit is for detection of the configuring condition after in signal processing unit, each subelement powers on, 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 the power amplifier grid voltage, power amplifier grid voltage and predefined voltage is compared, if the power amplifier grid voltage provides alarm lower than predefined voltage;
Described power amplifier unit input transmission unit is used for increasing to gradually at the ALC voltage by control unit control inputs control unit the process of predetermined value, the input power detecting unit is detected the testing result Input Control Element of input power amplifier cell signal;
Signal value and predefined threshold value that described control unit 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 that obtains higher than predefined threshold value, the up-conversion unit in signal processing unit carried out power down process, and provide alarm.
Therein in embodiment, a kind of DPD MCPA device, comprise signal processing unit, power amplifier unit and the integrated MCU unit of electrical protective device on above-mentioned DPD MCPA, described power amplifier unit also comprises Input Control Element, input power detecting unit and power amplifier control unit;
Described signal processing unit and described power amplifier unit receive function corresponding to control command execution that described MCU unit sends; Described MCU unit connects respectively described signal processing unit, described Input Control Element, described input power detecting unit and described power amplifier control unit, and described signal processing unit connects described Input Control Element;
Described MCU unit is used for each subelement of control signal processing unit and powers on according to predefined procedure, and control after configuration successful and open the power amplifier grid voltage after each subelement powers in signal processing unit, when increasing to predetermined value gradually, the ALC voltage of adjusting control inputs control unit guarantees that the signal value of inputting power amplifier unit does not exceed predefined threshold value.
above-mentioned DPD MCPA power-on protection method and device and DPD MCPA device, at first when power amplifier unit and control unit are powered, control the power amplifier control unit by described control unit and close the power amplifier grid voltage, according to the supply line that sets in advance, each subelement in signal processing unit is powered on according to predefined procedure again, by the configuring condition after in described control unit control detection signal processing unit, each subelement powers on, guarantee to control again power amplifier control unit unlatching power amplifier grid voltage after configuration successful, power amplifier grid voltage and predefined voltage are compared, if the 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.In the ALC voltage by control unit control inputs control unit increases to the process of predetermined value gradually, described control unit compares processing with signal value and the predefined threshold value of the input power amplifier unit that detection obtains, until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal value of the input power amplifier unit that obtains higher than predefined threshold value, the up-conversion unit in signal processing unit is carried out power down process, and provide alarm, if the testing result of input power detecting unit does not deal with lower than predefined threshold value.System configures correctly in whole power up, voltage is normal and input power does not exceed the aspect such as threshold value and guarantees 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 DPD MCPA power amplifier.
Description of drawings
Fig. 1 is the wherein method flow diagram of a kind of embodiment of DPD MCPA power-on protection method;
Fig. 2 is the electrical protective device module connection layout of a kind of embodiment wherein on DPD MCPA;
Fig. 3 is the wherein module connection layout of a kind of embodiment of DPD MCPA device;
Fig. 4 be DPD MCPA device wherein the module by signal of another kind of embodiment move towards figure.
Embodiment
As shown in Figure 1, a kind of DPD MCPA power-on protection method comprises step:
Step S110, when power amplifier unit and control unit are powered, close the power amplifier grid voltage, according to the supply line that sets in advance, each subelement in signal processing unit powered on according to predefined procedure.What at first power supply can realize by hardware circuit to power amplifier unit and control unit in the present embodiment: control unit and power amplifier unit power supply circuits are worked immediately after system powers on, the power supply of signal processing unit is after the control unit normal operation, controlled the power supply chip of inside, DC-DC unit starts working in order by control unit, thereby realize signal processing unit is powered in order, close the power amplifier grid voltage and can effectively avoid when starting power amplifier unit, cause burning of power amplifier unit because the signal processing unit configuration is unsuccessful.
Step S120, the configuring condition after in the detection signal processing unit, each subelement powers on, 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 again is 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 the next step operation, eliminate because the signal processing unit arrangement abnormalities makes high power signals be input to the possible factor of power amplifier.
Step S130, open the power amplifier grid voltage, power amplifier grid voltage and predefined voltage compared, if the power amplifier grid voltage provides alarm lower than predefined voltage; In the present embodiment, power amplifier grid voltage and predefined voltage are compared, if the power amplifier grid voltage provides alarm lower than predefined voltage, continue follow-up step if the power amplifier grid voltage is equal to or higher than predefined voltage, can guarantee effectively that the power amplifier grid voltage meets the required operating voltage requirement of power amplifier unit.
Step S140, in the ALC voltage by control unit control inputs control unit increases to the process of predetermined value gradually, detect the input power detecting unit 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 with the 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 that obtains higher than predefined threshold value, the up-conversion unit in signal processing unit carried out power down process, and provide alarm.In the present embodiment, predefined threshold value can be a less value because be the no signal input system in the 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 the representation signal processing unit, provide alarm, if the testing result of input power detecting unit does not deal with lower than predefined threshold value.
Above-mentioned DPD MCPA power-on protection method; at first when power amplifier unit and control unit are powered; control and close the power amplifier grid voltage by described control unit; according to the supply line that sets in advance, each subelement in signal processing unit is powered on according to predefined procedure again; by the configuring condition after in described control unit control detection signal processing unit, each subelement powers on; guarantee to control again unlatching power amplifier grid voltage after configuration successful; power amplifier grid voltage and predefined voltage are compared, if the 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.In the ALC voltage by control unit control inputs control unit increases to the process of predetermined value gradually, described control unit compares processing with signal value and the predefined threshold value of the input power amplifier unit that detection obtains, until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal value of the input power amplifier unit that obtains higher than predefined threshold value, the up-conversion unit in signal processing unit is carried out power down process, and provide alarm, if the testing result of input power detecting unit does not deal with lower than predefined threshold value.System configures correctly in whole power up, voltage is normal and input power does not exceed the aspect such as threshold value and guarantees 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 DPD MCPA power amplifier.
Therein in embodiment, described DPD MCPA power-on protection method, the described supply line that sets in advance specifically comprises step:
Set the first control line and control the first supply line, set the second control line and control the second supply line, set the 3rd control line and control the 3rd supply line, set the 4th control line and 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 embodiment, electrical protective device on a kind of DPD MCPA, comprise and control upper electric unit 110, configuration detection Alarm Unit 120, the contrast of power amplifier grid voltage alarm unit 130, power amplifier unit input transmission unit 140 and control unit 150;
In described control, electric unit 110 is used for closing the power amplifier grid voltage when power amplifier unit and control unit 150 are powered, and according to the supply line that sets in advance, each subelement in signal processing unit is powered on according to predefined procedure;
Described configuration detection Alarm Unit 120 is for detection of the configuring condition after in signal processing unit, each subelement powers on, 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 is used for opening the power amplifier grid voltage, power amplifier grid voltage and predefined voltage is compared, if the power amplifier grid voltage provides alarm lower than predefined voltage;
Described power amplifier unit input transmission unit 140 is used for increasing to gradually at the ALC voltage by control unit 150 control inputs control units 150 process of predetermined value, the input power detecting unit is detected the testing result Input Control Element 150 of input power amplifier cell signal;
Signal value and predefined threshold value that described control unit 150 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 that obtains higher than predefined threshold value, the up-conversion unit in signal processing unit carried out power down process, and provide alarm.
electrical protective device on above-mentioned DPD MCPA, at first when power amplifier unit and control unit are powered, control the power amplifier control unit by described control unit and close the power amplifier grid voltage, according to the supply line that sets in advance, each subelement in signal processing unit is powered on according to predefined procedure again, by the configuring condition after in described control unit control detection signal processing unit, each subelement powers on, guarantee to control again power amplifier control unit unlatching power amplifier grid voltage after configuration successful, power amplifier grid voltage and predefined voltage are compared, if the 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.In the ALC voltage by control unit control inputs control unit increases to the process of predetermined value gradually, described control unit compares processing with signal value and the predefined threshold value of the input power amplifier unit that detection obtains, until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal value of the input power amplifier unit that obtains higher than predefined threshold value, the up-conversion unit in signal processing unit is carried out power down process, and provide alarm, if the testing result of input power detecting unit does not deal with lower than predefined threshold value.System configures correctly in whole power up, voltage is normal and input power does not exceed the aspect such as threshold value and guarantees 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 DPD MCPA power amplifier.
In embodiment, electrical protective device on described DPD MCPA, also comprise supply line's setup unit therein; Described supply line setup unit is set the first control line and is controlled the first supply line, sets the second control line and controls the second supply line, sets the 3rd control line and controls the 3rd supply line, sets the 4th control line and controls the 4th supply line.
, because other part technical characterictics of electrical protective device on described DPD MCPA are identical with said method, do not repeat them here.
As shown in Figure 3, therein in embodiment, a kind of DPD MCPA device, comprise signal processing unit 210, power amplifier unit 220 and the integrated MCU unit 230 of electrical protective device on above-mentioned DPD MCPA, described power amplifier unit 220 also comprises Input Control Element 222, input power detecting unit 224 and power amplifier control unit 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 unit 226, and described signal processing unit 210 connects described Input Control Element 222;
Described MCU unit 230 is used for control signal processing unit 210 each subelements and powers on according to predefined procedure, and control after configuration successful and open the power amplifier grid voltage after each subelement powers in signal processing unit 210, when increasing to predetermined value gradually, the ALC voltage of adjusting control inputs control unit 222 guarantees that the signal value of inputting power amplifier unit 220 does not exceed predefined threshold value.
In the present embodiment, radiofrequency signal can enter the RF_IN interface, then carrying out DPD through signal processing unit 210 processes and then to be sent to power amplifier unit 220 and to amplify, the part signal of coupling power amplifier unit 220 outputs, enter into signal processing unit 210 by FB_IN, with the signal feedback of power amplifier output to signal processing unit 210; Signal processing unit 210 carries out DPD according to the power amplifier output signal of feedback to radiofrequency signal to be processed.what at first 230 power supplies can realize by hardware circuit to power amplifier unit 220 and MCU unit 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 230 normal operations of MCU unit, started working in order by the power supply chip that inside, DC-DC unit is controlled in MCU unit 230, thereby realize signal processing unit 210 is powered in order, closing the power amplifier grid voltage can effectively avoid when starting power amplifier unit 220, cause burning of power amplifier unit 220 because signal processing unit 210 configurations are unsuccessful.After detection signal processing unit 210 configuration failures, system proposes alarm and again is configured, signal processing unit 210 configuration successfuls just can be carried out next cell location and be detected, 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, guarantees that effectively the power amplifier grid voltage meets the required operating voltage requirement of power amplifier unit 220.Final described MCU unit 230 compares processing with the testing result of input power detecting unit 224 and predefined threshold value, 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 power down process, and provide alarm, if the testing result of input power detecting unit 224 does not deal with lower than predefined threshold value.In the present embodiment, predefined threshold value can be a less value because be the no signal input system in the 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 DPD MCPA device, at first power amplifier unit and MCU unit are powered, close the power amplifier grid voltage by described MCU unit controls, according to the supply line that sets in advance, each subelement in signal processing unit is powered on according to predefined procedure again, by the configuring condition after in described MCU unit controls detection signal processing unit, each subelement powers on, guarantee to control again unlatching power amplifier grid voltage after configuration successful, power amplifier grid voltage and predefined voltage are compared, if the 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.In the ALC voltage by MCU unit controls Input Control Element increases to the process of predetermined value gradually, described MCU unit compares processing with signal value and the predefined threshold value of the input power amplifier unit that detection obtains, until the ALC voltage of Input Control Element reaches predetermined value; If detect the signal value of the input power amplifier unit that obtains higher than predefined threshold value, the up-conversion unit in signal processing unit is carried out power down process, and provide alarm, if the testing result of input power detecting unit does not deal with lower than predefined threshold value.System configures correctly in whole power up, voltage is normal and input power does not exceed the aspect such as threshold value and guarantees 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 embodiment, described DPD MCPA device, also comprise the 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 a plurality of DC-DC conversion chips, is used 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 whether it works by the unit controls of MCU, thereby control system powers in order.
As shown in Figure 4, therein in embodiment, described DPD MCPA 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 embodiment, described DPD MCPA 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, described forward direction down-converter unit and feedback down-conversion unit are used for that radiofrequency signal is down-converted to intermediate-freuqncy signal and then are sent to digital processing element, described up-conversion unit adopts up-conversion modulator, be used for the intermediate-freuqncy signal of DAC unit output is up-converted to radiofrequency signal and output, what described clock unit adopted is the Clock management chip, be used 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, in embodiment, described DPD MCPA device, described digital processing element comprise ADC unit, Signal Pretreatment unit, DPD unit and the DAC unit that connects successively therein; Described ADC unit connects described feedback down-conversion unit.Described ADC unit is used for the analog signal conversion of forward direction and feedback is digital signal and to sending into the Signal Pretreatment unit, processes; Described Signal Pretreatment unit is used for the signal that is input to the DPD unit is carried out digital ALC and power detection preliminary treatment; Described DPD unit is used for the forward signal of input is carried out the DPD processing; Described DAC unit is used for the digital signal after the DPD cell processing is converted to analog if signal.
Therein in embodiment, described DPD MCPA 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 digital signal to the analog signal conversion of forward direction and feedback, and another sheet ADC chip is processed sending into the Signal Pretreatment unit.What described Signal Pretreatment unit adopted is fpga chip or dsp chip, is used for the signal that is input to the DPD unit is carried out digital ALC and power detection preliminary treatment.What described DPD unit adopted is DPD chip or dsp chip, is used for the forward signal of input is carried out the DPD processing; What described DAC unit adopted is a slice DAC chip, is used for the digital signal after the DPD cell processing is converted to analog if signal.
The above embodiment has only expressed several execution mode 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.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 range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a DPD MCPA power-on protection method, is characterized in that, comprises step:
When power amplifier unit and control unit are powered, close the power amplifier grid voltage, according to the supply line that sets in advance, each subelement in signal processing unit is powered on according to predefined procedure;
Configuring condition after in the detection signal processing unit, each subelement powers on, if configuration failure provides alarm, until the equal configuration successful of each subelement in signal processing unit;
Open the power amplifier grid voltage, power amplifier grid voltage and predefined voltage are compared, if the power amplifier grid voltage provides alarm lower than predefined voltage;
In the ALC voltage by control unit control inputs control unit increases to the process of predetermined value gradually, the input power detecting unit is detected 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 that obtains higher than predefined threshold value, the up-conversion unit in signal processing unit carried out power down process, and provide alarm.
2. DPD MCPA power-on protection method according to claim 1, is characterized in that, the described supply line that sets in advance specifically comprises step:
Set the first control line and control the first supply line, set the second control line and control the second supply line, set the 3rd control line and control the 3rd supply line, set the 4th control line and control the 4th supply line.
3. electrical protective device on a DPD MCPA, is characterized in that, comprises and control upper electric unit, configuration detection Alarm Unit, the contrast of power amplifier grid voltage alarm unit, power amplifier unit input transmission unit and control unit;
In described control, electric unit is used for closing the power amplifier grid voltage when power amplifier unit and control unit are powered, and according to the supply line that sets in advance, each subelement in signal processing unit is powered on according to predefined procedure;
Described configuration detection Alarm Unit is for detection of the configuring condition after in signal processing unit, each subelement powers on, 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 the power amplifier grid voltage, power amplifier grid voltage and predefined voltage is compared, if the power amplifier grid voltage provides alarm lower than predefined voltage;
Described power amplifier unit input transmission unit is used for increasing to gradually at the ALC voltage by control unit control inputs control unit the process of predetermined value, the input power detecting unit is detected the testing result Input Control Element of input power amplifier cell signal;
Signal value and predefined threshold value that described control unit 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 that obtains higher than predefined threshold value, the up-conversion unit in signal processing unit carried out power down process, and provide alarm.
4. electrical protective device on DPD MCPA according to claim 3, is characterized in that, also comprises supply line's setup unit; Described supply line setup unit is set the first control line and is controlled the first supply line, sets the second control line and controls the second supply line, sets the 3rd control line and controls the 3rd supply line, sets the 4th control line and controls the 4th supply line.
5. DPD MCPA device, it is characterized in that, comprise signal processing unit, power amplifier unit and the integrated MCU unit of electrical protective device on the described DPD MCPA of the claims 3-4 any one, described power amplifier unit also comprises Input Control Element, input power detecting unit and power amplifier control unit;
Described signal processing unit and described power amplifier unit receive the control command execution function corresponding with described control command that described MCU unit sends; Described MCU unit connects respectively described signal processing unit, described Input Control Element, described input power detecting unit and described power amplifier control unit, and described signal processing unit connects described Input Control Element;
Described MCU unit is used for each subelement of control signal processing unit and powers on according to predefined procedure, and control after configuration successful and open the power amplifier grid voltage after each subelement powers in signal processing unit, when increasing to predetermined value gradually, the ALC voltage of adjusting control inputs control unit guarantees that the signal value of inputting power amplifier unit does not exceed predefined threshold value.
6. DPD MCPA device according to claim 5, is characterized in that, also comprises the DC-DC unit, and described DC-DC unit connects respectively described signal processing unit and described MCU unit.
7. DPD MCPA device according to claim 6, is characterized in that, described MCU unit also comprises four supply line's control lines.
8. according to claim 5 or 6 or 7 described DPD MCPA devices, is characterized in that, 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.
9. according to claim 5 or 6 or 7 described DPD MCPA devices, is characterized in that, described digital processing element comprises ADC unit, Signal Pretreatment unit, DPD unit and the DAC unit that connects successively; Described ADC unit connects described feedback down-conversion unit.
10. according to claim 5 or 6 or 7 described DPD MCPA devices, it is characterized in that, described ADC unit adopts two ADC chips, 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.
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| CN104616614A (en) * | 2014-11-28 | 2015-05-13 | 合肥京东方光电科技有限公司 | Power-on method and device and detection method and device of display module |
| CN111274196A (en) * | 2018-12-05 | 2020-06-12 | 锐迪科（重庆）微电子科技有限公司 | Start control device and method |
| CN111835377A (en) * | 2020-08-19 | 2020-10-27 | 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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| CN104616614A (en) * | 2014-11-28 | 2015-05-13 | 合肥京东方光电科技有限公司 | Power-on method and device and detection method and device of display module |
| CN104616614B (en) * | 2014-11-28 | 2017-11-17 | 合肥京东方光电科技有限公司 | The powering method and device of display module, detection method and device |
| CN111274196A (en) * | 2018-12-05 | 2020-06-12 | 锐迪科（重庆）微电子科技有限公司 | Start control device and method |
| 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 |
| CN111835377A (en) * | 2020-08-19 | 2020-10-27 | 展讯通信（上海）有限公司 | Signal transceiving device and power-on and power-off method of transmitting module thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103391055B (en) | 2016-06-15 |
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Address after: 510663 No. 10 Shenzhou Road, Science City, Luogang District, Guangzhou City, Guangdong Province Patentee after: Jingxin Network System Co.,Ltd. Address before: 510663 No. 10 Shenzhou Road, Science City, Luogang District, Guangzhou City, Guangdong Province Patentee before: Comba Telecom System (China) Ltd. |