CN110174549B - Low-current dual monitoring circuit for amplifying power dividing component and amplifying power dividing device - Google Patents
Low-current dual monitoring circuit for amplifying power dividing component and amplifying power dividing device Download PDFInfo
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- CN110174549B CN110174549B CN201910438349.6A CN201910438349A CN110174549B CN 110174549 B CN110174549 B CN 110174549B CN 201910438349 A CN201910438349 A CN 201910438349A CN 110174549 B CN110174549 B CN 110174549B
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
Abstract
The invention discloses a low-current dual monitoring circuit for an amplification power division component, which is characterized by comprising the following components in parts by weight: the current detection amplifying circuit is used for detecting a current signal of the power input amplification power dividing component of the power supply, amplifying the current signal and outputting the amplified current signal to the voltage monitoring circuit; and the voltage monitoring circuit is used for converting the amplified current signal into a voltage signal, dividing the voltage signal and then processing the voltage signal so as to realize double monitoring of undercurrent of small current and overcurrent of small current of the amplified power dividing assembly and output monitoring voltage.
Description
Technical Field
The invention relates to circuit monitoring, in particular to a low-current dual monitoring circuit for an amplification power dividing component and an amplification power dividing device.
Background
The amplification power division component has the function of amplifying and power dividing four paths of received signals fed by the antenna so as to meet the use requirements of the rear-stage component. Because the dynamic range of four received signals fed by the antenna is large, the signal power is small, the fault monitoring of the component cannot be realized by adopting the conventional power monitoring circuit, and the component requires the fault monitoring function, a small-current double monitoring circuit is required to be provided to carry out double monitoring of undercurrent and overcurrent on the small current of the amplification power division component, or the amplification power division component with the small-current double monitoring circuit is provided to realize the fault monitoring of the component.
Disclosure of Invention
The present invention is directed to a low current dual monitoring circuit for an amplifying power dividing device, so as to solve the above problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention discloses a small current dual monitoring circuit for an amplifying power dividing component in a first aspect, which comprises:
the current detection amplifying circuit is used for detecting a current signal of the power input amplification power dividing component of the power supply, amplifying the current signal and outputting the amplified current signal to the voltage monitoring circuit;
and the voltage monitoring circuit is used for converting the amplified current signal into a voltage signal, dividing the voltage signal and then processing the voltage signal so as to realize double monitoring of undercurrent of small current and overcurrent of small current of the amplified power dividing assembly and output monitoring voltage.
Preferably, the current detection amplifying circuit includes:
the inductor is used for filtering a current signal input by a power supply;
the first resistor is used for outputting the current signal filtered by the inductor to an amplifying power division component; and
the current detection amplifier is used for detecting a current signal on the first resistor, amplifying the current signal on the first resistor and outputting the amplified current signal to the voltage monitoring circuit.
Preferably, an input end of the inductor is connected with a power supply, and an output end of the inductor is connected with an input end of the first resistor; the input end of the first resistor is connected with the RS + end of the current detection amplifier, the output end of the first resistor is connected with the RS-end of the current detection amplifier, and the output end of the first resistor is connected with the input end of the amplification power dividing component; and the output end of the current detection amplifier is connected with the input end of the voltage monitoring circuit.
Preferably, the voltage monitoring circuit includes:
the second resistor is used for converting a current signal output by a current detection amplifier in the current detection amplifying circuit into a first voltage signal;
the third resistor is used for converting a current signal output by a current detection amplifier in the current detection amplifying circuit into a second voltage signal, and dividing the voltage signal by the third resistor and the second resistor and outputting the voltage signal to the general voltage monitor;
the universal voltage monitor adopts a double-circuit voltage monitor with an OC gate, and is used for respectively processing the first voltage signal and the second voltage signal and outputting monitoring voltage, wherein the double-circuit voltage monitor with the OC gate internally comprises two voltage detection circuits, and the reference voltages of the two voltage detection circuits are different and are used for monitoring two different voltages;
the fifth voltage stabilization block is used for carrying out secondary voltage stabilization on the current signal filtered by the inductor in the current detection amplifying circuit to a voltage value required by the universal voltage monitor and supplying power to the universal voltage monitor; and
a fourth resistor for adjusting the monitored voltage value output by the universal voltage monitor.
Preferably, the voltage monitoring circuit further includes: and a fifth resistor for controlling the small-current double monitoring circuit to perform double monitoring of a small-current undercurrent and a small-current overcurrent or single monitoring of a small-current undercurrent.
Preferably, the output end of the current detection amplifier is respectively connected with the Input end of the second resistor and the Input1 end of the universal voltage monitor; the output end of the second resistor is respectively connected with the Input end of the third resistor and the Input2 end of the universal voltage monitor; the power supply end of the universal voltage monitor is respectively connected with the output end of the fifth voltage-stabilizing block and the input end of the fourth resistor; the output end of the fourth resistor is respectively connected with the output1 end of the universal voltage monitor and the input end of the fifth resistor; the output end of the fifth resistor is connected with the output2 end of the universal voltage monitor; wherein, the output end of the fourth resistor is the monitoring voltage output end of the low-current dual monitoring circuit.
Preferably, when the low-current double monitoring circuit is controlled to perform double monitoring of a low-current undercurrent and a low-current overcurrent, the fifth resistor is set to be short-circuited; when the low-current dual monitoring circuit is controlled to perform the independent monitoring of the low-current undercurrent, the fifth resistor is set to be an open circuit.
Preferably, the current detection amplifying circuit amplifies the detected current signal of the power input amplification power dividing component by 50 times.
A second aspect of the present invention discloses an amplification power dividing apparatus, including: the low-current dual-monitoring circuit is connected with the input end of the amplifying power dividing component in series and used for the amplifying power dividing component.
Preferably, the amplifying power dividing component comprises a first voltage-stabilizing block, a second voltage-stabilizing block, a third voltage-stabilizing block, a fourth voltage-stabilizing block, a first amplifying power dividing circuit, a second amplifying power dividing circuit, a third amplifying power dividing circuit and a fourth amplifying power dividing circuit, wherein the amplifying power dividing circuit comprises a first voltage-stabilizing block, a second voltage-stabilizing block, a third voltage-stabilizing block, a fourth voltage-stabilizing block, a first amplifying power dividing circuit, a second amplifying power dividing circuit, a third amplifying power dividing circuit and a fourth amplifying power dividing circuit, and the amplifying power dividing circuit comprises a first amplifying power dividing circuit, a second amplifying power dividing circuit, a third amplifying power dividing circuit and a fourth amplifying power dividing circuit
The first voltage stabilizing block is respectively connected with a first resistor in the current detection amplifying circuit and the first amplifying power dividing circuit; the second voltage stabilizing block is respectively connected with a first resistor in the current detection amplifying circuit and the second amplifying power dividing circuit; the third voltage stabilizing block is respectively connected with a first resistor in the current detection amplifying circuit and the third amplifying power dividing circuit; and the fourth voltage-stabilizing block is respectively connected with the first resistor in the current detection amplifying circuit and the fourth amplifying power dividing circuit.
The invention has the following beneficial effects:
the technical scheme of the invention has the advantages of clear principle and simple design, firstly adopts the current detection amplifier to amplify the small current, then converts the current into the voltage, and realizes the double monitoring of the small current, the fast undercurrent and the overcurrent of the amplification power division component by reasonably distributing the monitoring voltage and using the universal voltage monitor with the OC gate.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 shows a schematic diagram of a low current dual monitoring circuit in an embodiment of the invention.
FIG. 2 is a schematic diagram of an amplifying power dividing component in an embodiment of the invention
In the figure: 1001. a current detection amplifying circuit; 1002. amplifying the power dividing assembly; 1003. a voltage monitoring circuit; 1. an inductor; 2. a first resistor; 3. a current sense amplifier; 4. a first voltage stabilization block; 5. a first amplification power dividing circuit; 6. a second voltage stabilization block; 7. a second amplification power dividing circuit; 8. a third voltage stabilization block; 9. a third amplification power dividing circuit; 10. a fourth voltage stabilization block; 11. a fourth amplifying power dividing circuit; 12. a second resistor; 13. a third resistor; 14. a universal voltage monitor; 15. a fifth voltage stabilization block; 16. a fourth resistor; 17. a fifth resistor.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
As shown in fig. 1, in an embodiment of the present invention, a low-current dual monitoring circuit for an amplifying power dividing component is disclosed, the low-current dual monitoring circuit includes: a current detection amplifying circuit 1001 and a voltage monitoring circuit 1003. The current detection amplifying circuit 1001 is used for detecting a current signal of the power input amplification power dividing component, amplifying the current signal and outputting the amplified current signal to the voltage monitoring circuit; the voltage monitoring circuit 1003 is configured to convert the amplified current signal into a voltage signal, divide the voltage signal, and then process the voltage signal, so as to implement dual monitoring of a low-current undercurrent and a low-current overcurrent of the amplified power division component, and output a monitoring voltage.
In this embodiment, the current detection amplifying circuit includes: an inductor 1, a first resistor 2 and a current sense amplifier 3. Filtering a current signal input by a power supply through the inductor 1; the first resistor 2 is used for outputting the current signal filtered by the inductor 1 to an amplifying power dividing assembly, so that the series connection and the communication of the circuit are realized, and the current signal is connected with a current detection amplifier 3 and used for detecting the current signal output to the amplifying power dividing assembly; the current detection amplifier 3 detects a current signal output to the power dividing component through the first resistor 2, amplifies the detected current signal by 50 times, and outputs the amplified current signal to the voltage monitoring circuit 1003, wherein different currents can be detected by changing a resistance value of the first resistor 2. The input end of the inductor 1 is connected with a power supply, and the output end of the inductor 1 is connected with the input end of the first resistor 2; the input end of the first resistor 2 is further connected with the RS + end of the current detection amplifier 3, the output end of the first resistor 2 is connected with the RS-end of the current detection amplifier 3, and the output end of the first resistor 2 is further connected with the input end of the amplification power dividing component; the output terminal of the current sense amplifier 3 (i.e., the OUT pin in fig. 1) is connected to the input terminal of the voltage monitoring circuit 1003.
In this embodiment, the voltage monitoring circuit includes: a second resistor 12, a third resistor 13, a universal voltage monitor 14, a fifth voltage regulator block 15, and a fourth resistor 16. The second resistor 12 converts the current signal output from the current detection amplifier 3 in the current detection amplifying circuit 1001 into a first voltage signal; the third resistor 13 converts the current signal output by the current detection amplifier 3 in the current detection amplifying circuit 1001 into a second voltage signal, and divides the voltage signal with the second resistor and outputs the voltage signal to the general voltage monitor 14. When the first resistor, the second resistor and the third resistor are respectively determined, the total threshold value is determined according to the upper threshold and the lower threshold of the total current requirement in the amplifying power dividing component, the voltage division ratio of the second resistor to the third resistor is determined according to the upper limit of the under current and the lower limit of the over current, determining the resistance value of the first resistor according to the flip level of the comparator and the current range of normal operation, further determining the resistance value ranges of the second resistor and the third resistor according to the voltage division ratio, the total current refers to all output currents (namely, referred to as small current) which need to be monitored during normal work, the total threshold refers to a boundary value for judging overcurrent or undercurrent during monitoring, when the boundary value is reached, the general voltage monitor converts an analog level into a digital quantity which represents normal or abnormal, and provides indication for a monitoring result or feeds back the monitoring result to a control circuit at the lower stage for protecting circuits in a system or giving an alarm.
The general voltage monitor 14 adopts a two-way voltage monitor with an OC gate, processes the first voltage signal and the second voltage signal respectively, judges whether the current of the amplification power division component is under current or over current through the voltage signal, and outputs monitoring voltage to a lower-stage circuit so as to realize protection of the amplification power division component and the like, wherein the two-way voltage monitor with the OC gate internally comprises two voltage detection circuits, and the two voltage detection circuits only have different reference voltages and are used for monitoring two different voltages. The reference voltages are different, so that the method can be used for monitoring two paths of different voltages, and can be used for double monitoring of under current and over current of the amplification power division component. The fifth voltage stabilization block 15 secondarily stabilizes the current signal filtered by the inductor 1 in the current detection amplifying circuit 1001 to a voltage value required by the general voltage monitor 10, and supplies power to the general voltage monitor 14. The fourth resistor 16 in the voltage monitoring circuit 1003 can adjust the monitoring voltage value output by the general voltage monitor 14 to realize matching to the lower circuit.
In this embodiment, the voltage monitoring circuit 1003 further includes: a fifth resistor 17. The fifth resistor 17 can perform adjustment switching on the circuit in the voltage monitoring circuit to control the low-current dual-monitoring circuit to perform dual monitoring of low-current undercurrent and low-current overcurrent or single monitoring of low-current undercurrent. The output end of the current detection amplifier 3 is respectively connected with the Input end of the second resistor 12 and the Input1 end of the universal voltage monitor 14; the output end of the second resistor 12 is connected to the Input end of the third resistor 13 and the Input2 end of the universal voltage monitor 14 respectively; the power supply terminal (i.e. the terminal Vc in fig. 1) of the universal voltage monitor 14 is respectively connected to the output terminal of the fifth voltage-stabilizing block 15 and the input terminal of the fourth resistor 16; the output end of the fourth resistor 16 is connected to the output1 end of the universal voltage monitor 14 and the input end of the fifth resistor 17; the output end of the fifth resistor 17 is connected to the output2 end of the universal voltage monitor 14; at this time, the output end of the fourth resistor 16 is used as the monitoring voltage output end of the low-current dual-monitoring circuit.
Further, regarding the control switching of the fifth resistor 17 to the universal voltage monitor 14: when the low-current dual monitoring circuit is controlled to perform dual monitoring of a low-current undercurrent and a low-current overcurrent, the fifth resistor 17 is set to be short-circuited; the fifth resistor 17 is set to open circuit when the low current double monitoring circuit is controlled to perform the separate monitoring of the low current undercurrent.
In the embodiment, the low-current dual monitoring circuit adopts a current detection amplifier, and detects and amplifies the current of the power dividing component by externally connecting a current measuring resistor (namely, a first resistor); and then the current signal output by the current detection amplifying circuit is converted into a voltage signal, the voltage signal is reasonably distributed, and a double-circuit voltage monitor with an OC gate is used, so that double monitoring of undercurrent of small current and overcurrent of small current of the amplification power distribution component is realized, and support is provided for state monitoring of a system.
In another embodiment of the present invention, an amplification power dividing apparatus is disclosed, including: the power amplifier comprises an amplification power division component 1002 and the small-current dual monitoring circuit for the amplification power division component, wherein the small-current dual monitoring circuit is connected to the input end of the amplification power division component 1002 in series. As shown in fig. 2, the amplifying power dividing component may amplify and divide four paths of input radio frequency signals to meet the use requirement of the subsequent circuit, and may also implement self-monitoring protection based on a low-current dual-monitoring circuit.
In this embodiment, the amplifying power dividing component 1002 includes a first voltage stabilizing block 4, a second voltage stabilizing block 6, a third voltage stabilizing block 8, a fourth voltage stabilizing block 10, a first amplifying power dividing circuit 5, a second amplifying power dividing circuit 7, a third amplifying power dividing circuit 9, and a fourth amplifying power dividing circuit 11, where the first voltage stabilizing block 4 is connected to the first resistor 2 and the first amplifying power dividing circuit 5 in the current detection amplifying circuit, respectively; the second voltage-stabilizing block 6 is respectively connected with the first resistor 2 and the second amplifying power dividing circuit 7 in the current detection amplifying circuit; the third voltage-stabilizing block 8 is respectively connected with the first resistor 2 and the third amplifying power dividing circuit 9 in the current detection amplifying circuit; the fourth voltage-stabilizing block 10 is respectively connected with the first resistor 2 in the current detection amplifying circuit and the fourth amplifying power dividing circuit 11.
Specifically, the output end of the first resistor 2 is also connected to the input end of the first voltage-stabilizing block 4, the input end of the second voltage-stabilizing block 6, the input end of the third voltage-stabilizing block 8 and the input end of the fourth voltage-stabilizing block 10, respectively; the output end of the first voltage-stabilizing block 4 is connected with the input end of the first amplification power-dividing circuit 5, the output end of the second voltage-stabilizing block 6 is connected with the input end of the second amplification power-dividing circuit 7, the output end of the third voltage-stabilizing block 8 is connected with the input end of the third amplification power-dividing circuit 9, and the output end of the fourth voltage-stabilizing block 10 is connected with the input end of the fourth amplification power-dividing circuit 11. The first voltage stabilizing block 4 secondarily stabilizes the first path of power supply signal output by the first resistor 2 in the current detection amplifying circuit to a required voltage value, and supplies power for an amplifier in the first amplification power dividing circuit; the first amplification power division circuit amplifies and power divides the input first path of radio frequency signal to meet the use requirement of a later stage circuit; the second voltage stabilizing block secondarily stabilizes the second path of power supply signal output by the first resistor in the current detection amplifying circuit to a required voltage value, and supplies power to an amplifier in the second amplifying power dividing circuit; the second amplification power division circuit amplifies and power divides the input second path of radio frequency signal to meet the use requirement of a post-stage circuit; the third voltage stabilizing block secondarily stabilizes the third power supply signal output by the first resistor in the current detection amplifying circuit to a required voltage value, and supplies power to an amplifier in the third amplifying power dividing circuit; the third amplification power division circuit amplifies and power divides the input third path of radio frequency signal to meet the use requirement of a later stage circuit; the fourth voltage stabilizing block secondarily stabilizes the fourth power supply signal output by the first resistor in the current detection amplifying circuit to a required voltage value, and supplies power to an amplifier in the fourth amplifying power dividing circuit; the fourth amplification power division circuit amplifies and power divides the input fourth path of radio frequency signal to meet the use requirement of a rear-stage circuit.
In order to achieve better double monitoring effects on the undercurrent of the small current and the overcurrent of the small current of the amplification power division component, the embodiment of the invention discloses that the small current is amplified by adopting a current detection amplifier, then the current is converted into the voltage, and double monitoring is carried out by using a general voltage monitor. When the low-current dual monitoring circuit works, an externally input power supply signal firstly enters the inductor 1, and the inductor 1 carries out filtering processing on the input power supply signal. The power supply signal filtered by the inductor 1 enters the first resistor 2 and the current detection amplifier 3, the first resistor 2 is connected in series between a power supply and the rear-end amplification power dividing circuit 1002, and different currents can be detected by changing the resistance value of the first resistor 2 based on the current of the amplification power dividing component detected by the first resistor 2. Because the current of the amplifying power dividing component is less than 500mA, the small current is defined as the current less than 500mA in the invention, the current of the amplifying power dividing component is detected by the current detection amplifier 3 through the first resistor 2, and the detected current of the amplifying power dividing component is amplified by 50 times and then is output through the OUT pin. The power supply signal passing through the first resistor 2 (current measuring resistor) enters the first voltage stabilizing block 4, the second voltage stabilizing block 6, the third voltage stabilizing block 8 and the fourth voltage stabilizing block 10 at the same time, and is stabilized to the voltage value required by the corresponding amplifying power dividing circuit through each voltage stabilizing block, and then the power supply is supplied to the amplifier in the corresponding amplifying power dividing circuit.
The current of the amplified power dividing component amplified by the current detection amplifier 3 sequentially enters the second resistor 12 and the third resistor 13, the current signal output by the current detection amplifier 3 is converted into a voltage signal by the second resistor 12 and the third resistor 13, and the voltage signal is subjected to appropriate voltage division and output to the general voltage monitor 14. The universal voltage monitor 14 monitors the voltage signals converted by the second resistor 12 and the third resistor 13, and two paths of different voltages are monitored by using two same voltage detection circuits (only voltage references are different and the voltage references are determined according to actual needs) inside the universal voltage monitor, so that double monitoring of undercurrent and overcurrent of small current in the amplification power division component is realized. Meanwhile, the fifth voltage stabilization block 5 secondarily stabilizes the power supply signal filtered by the inductor 1 to a voltage value required by the general voltage monitor 14, and supplies power to the general voltage monitor 14. The monitored voltage output by the universal voltage monitor 14 is output to the fourth resistor 16, and the fourth resistor 16 can adjust the monitored voltage value output by the universal voltage monitor A14 for better connection with the subsequent circuit. The fifth resistor 17 is used to select the low current dual monitoring circuit to implement only the under current single monitoring or the dual monitoring of the under current and the over current. The low-current double-monitoring circuit adopts the voltage at the output end of the fourth resistor 16 as the final monitoring voltage output end of the voltage monitoring circuit.
The low-current double monitoring circuit can realize the double monitoring of the low current, the rapid undercurrent and the overcurrent of the amplifying power dividing component, and overcomes the defect that the amplifying power dividing component can not adopt the conventional power monitoring circuit to realize the component fault monitoring. Meanwhile, the amplifying power dividing device disclosed in the embodiment realizes monitoring of the amplifying power dividing component of the amplifying power dividing device, and also overcomes the defect that the monitoring of the small current of the amplifying power dividing component cannot be realized in a conventional power monitoring circuit.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (9)
1. A small current dual monitor circuit for an amplifying power splitting component, the small current dual monitor circuit comprising:
the current detection amplifying circuit is used for detecting a current signal of the power input amplification power dividing component of the power supply, amplifying the current signal and outputting the amplified current signal to the voltage monitoring circuit;
the voltage monitoring circuit is used for converting the amplified current signal into a voltage signal, dividing the voltage signal and then processing the voltage signal so as to realize double monitoring of undercurrent of small current and overcurrent of small current of the amplified power dividing assembly and output monitoring voltage;
the voltage monitoring circuit includes:
the second resistor is used for converting a current signal output by a current detection amplifier in the current detection amplifying circuit into a first voltage signal;
the third resistor is used for converting a current signal output by a current detection amplifier in the current detection amplifying circuit into a second voltage signal, and dividing the voltage signal by the third resistor and the second resistor and outputting the voltage signal to the general voltage monitor;
the universal voltage monitor adopts a double-circuit voltage monitor with an OC gate, and is used for respectively processing the first voltage signal and the second voltage signal and outputting monitoring voltage, wherein the double-circuit voltage monitor with the OC gate internally comprises two voltage detection circuits, and the reference voltages of the two voltage detection circuits are different and are used for monitoring two different voltages;
the fifth voltage stabilization block is used for carrying out secondary voltage stabilization on the current signal filtered by the inductor in the current detection amplifying circuit to a voltage value required by the universal voltage monitor and supplying power to the universal voltage monitor; and
a fourth resistor for adjusting the monitored voltage value output by the universal voltage monitor.
2. The small current dual monitor circuit for amplifying a power dividing component as claimed in claim 1, wherein the current detection amplifying circuit comprises:
the inductor is used for filtering a current signal input by a power supply;
the first resistor is used for outputting the current signal filtered by the inductor to an amplifying power division component; and
the current detection amplifier is used for detecting a current signal on the first resistor, amplifying the current signal on the first resistor and outputting the amplified current signal to the voltage monitoring circuit.
3. The small current dual monitor circuit for an amplified power dividing module according to claim 2, wherein an input terminal of the inductor is connected to a power supply, and an output terminal of the inductor is connected to an input terminal of the first resistor; the input end of the first resistor is connected with the RS + end of the current detection amplifier, the output end of the first resistor is connected with the RS-end of the current detection amplifier, and the output end of the first resistor is connected with the input end of the amplification power dividing component; and the output end of the current detection amplifier is connected with the input end of the voltage monitoring circuit.
4. The low current dual monitor circuit for an amplified power splitting component of claim 1, wherein the voltage monitor circuit further comprises: and a fifth resistor for controlling the small-current double monitoring circuit to perform double monitoring of a small-current undercurrent and a small-current overcurrent or single monitoring of a small-current undercurrent.
5. The small current dual monitor circuit for amplifying power dividing component as claimed in claim 4, wherein the output terminals of the current sense amplifier are respectively connected to the Input terminal of the second resistor and the Input1 terminal of the universal voltage monitor; the output end of the second resistor is respectively connected with the Input end of the third resistor and the Input2 end of the universal voltage monitor; the power supply end of the universal voltage monitor is respectively connected with the output end of the fifth voltage-stabilizing block and the input end of the fourth resistor; the output end of the fourth resistor is respectively connected with the output1 end of the universal voltage monitor and the input end of the fifth resistor; the output end of the fifth resistor is connected with the output2 end of the universal voltage monitor; wherein, the output end of the fourth resistor is the monitoring voltage output end of the low-current dual monitoring circuit.
6. The small-current double monitoring circuit for the amplifying power dividing component as claimed in claim 4 or 5, wherein the fifth resistor is set to be short-circuited when the small-current double monitoring circuit is controlled to perform double monitoring of an undercurrent of a small current and an overcurrent of a small current; when the low-current dual monitoring circuit is controlled to perform the independent monitoring of the low-current undercurrent, the fifth resistor is set to be an open circuit.
7. The small current dual monitor circuit for an amplified power splitting module of claim 1, wherein the current detection amplifying circuit amplifies the detected current signal of the power input amplified power splitting module by 50 times.
8. An amplification power dividing apparatus, comprising: the low-current dual-monitoring circuit for the amplifying power dividing component comprises the amplifying power dividing component and the low-current dual-monitoring circuit which is connected to the input end of the amplifying power dividing component in series and is used for the amplifying power dividing component according to any one of claims 1 to 7.
9. The apparatus according to claim 8, wherein the amplifying power dividing component comprises a first voltage-regulator block, a second voltage-regulator block, a third voltage-regulator block, a fourth voltage-regulator block, a first power dividing circuit, a second power dividing circuit, a third power dividing circuit and a fourth power dividing circuit, wherein the amplifying power dividing circuit comprises a first power-regulator block, a second power-regulator block, a third power-divider circuit, a fourth power-divider circuit, a third power-divider circuit and a fourth power-divider circuit
The first voltage stabilizing block is respectively connected with a first resistor in the current detection amplifying circuit and the first amplifying power dividing circuit; the second voltage stabilizing block is respectively connected with a first resistor in the current detection amplifying circuit and the second amplifying power dividing circuit; the third voltage stabilizing block is respectively connected with a first resistor in the current detection amplifying circuit and the third amplifying power dividing circuit; and the fourth voltage-stabilizing block is respectively connected with the first resistor in the current detection amplifying circuit and the fourth amplifying power dividing circuit.
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