CN213689885U - Ripple wave generating device for 28V direct-current power supply characteristic intelligent test system of special vehicle - Google Patents
Ripple wave generating device for 28V direct-current power supply characteristic intelligent test system of special vehicle Download PDFInfo
- Publication number
- CN213689885U CN213689885U CN202022083178.0U CN202022083178U CN213689885U CN 213689885 U CN213689885 U CN 213689885U CN 202022083178 U CN202022083178 U CN 202022083178U CN 213689885 U CN213689885 U CN 213689885U
- Authority
- CN
- China
- Prior art keywords
- signal
- power supply
- ripple
- diode
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses a ripple generating device for a 28V direct current power supply characteristic intelligent test system of a special vehicle, which belongs to the technical field of direct current power supply characteristic test and comprises a bipolar transconductance amplifier, a tenth resistor, an eleventh resistor, a fourth capacitor, a fifth capacitor, a third inductor, a fifth diode and a sixth diode; a control signal is input to one end of the tenth resistor to assign the frequency and the amplitude of a ripple signal to be generated, and the other end of the tenth resistor is connected with the positive input end of the bipolar transconductance amplifier, one end of the eleventh resistor and one end of the fourth capacitor respectively; the other end of the eleventh resistor is connected with the anode of the fifth diode; the negative electrode of the fifth diode is respectively connected with one end of the third inductor and the negative electrode of the sixth diode; the other end of the third inductor is connected with the negative input end of the bipolar transconductance amplifier and one end of the fifth capacitor respectively; the output end of the bipolar transconductance amplifier outputs a ripple signal. The utility model has the advantages of ripple signal quality is high.
Description
Technical Field
The utility model relates to a DC power supply characteristic test technical field, concretely relates to ripple generating device that is used for special vehicle 28V DC power supply characteristic intelligent test system.
Background
Along with the improvement of the technical level of weapon equipment of our army, the types and the quantity of the vehicle-mounted electrical equipment are more and more, and the performance parameters of the vehicle-mounted power grid are more and more complicated to change. The vehicle-mounted electrical equipment is an indispensable component on the vehicle, so that each electrical equipment is ensured to work reliably in a vehicle-mounted power grid power supply mode, meanwhile, the electrical equipment cannot influence the vehicle-mounted power grid, and otherwise, the full play of the tactical technical indexes of the whole vehicle is influenced.
The military issued the national military standard '28V direct current electrical system characteristics of military vehicles' (GJB 298-87) in 1987, and specified the limit value and the steady-state voltage range of the transient characteristics of the 28V direct current power supply system of the military vehicles; meanwhile, requirements are provided for the power supply adaptability of the vehicle-mounted electrical equipment, namely, the vehicle-mounted electrical equipment can reliably work due to the fact that the direct-current power supply conforming to the GJB298-87 standard supplies power to the vehicle-mounted electrical equipment.
The traditional method for the vehicle-mounted electrical equipment power supply compatibility test is to install a tested product into a real-vehicle power grid and check the power supply compatibility of the tested product in the real-vehicle working process. Due to the fact that the working conditions of the real vehicle are complex and changeable, the working state of the power grid is difficult to reproduce, and therefore the parameters of the real vehicle power grid are difficult to master. Even if the tested product has problems, the power supply compatibility of the tested product is poor or the technical indexes of the real-vehicle power grid do not meet the requirements, and the judgment is not good.
Therefore, it is necessary to design a test system capable of generating voltage signals conforming to the GJB298-87 standard or similar to real vehicle signals to be loaded on a product to be tested so as to check the grid compatibility of the product to be tested.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a ripple generating device that is used for special type vehicle 28V direct current power supply characteristic intelligent test system, include: the circuit comprises a bipolar transconductance amplifier, a tenth resistor, an eleventh resistor, a fourth capacitor, a fifth capacitor, a third inductor, a fifth diode and a sixth diode;
a control signal is input to one end of the tenth resistor to assign the frequency and the amplitude of a ripple signal to be generated, and the other end of the tenth resistor is connected with the positive input end of the bipolar transconductance amplifier, one end of the eleventh resistor and one end of the fourth capacitor respectively; the other end of the fourth capacitor is grounded; the other end of the eleventh resistor is connected with the anode of the fifth diode; the negative electrode of the fifth diode is respectively connected with one end of the third inductor and the negative electrode of the sixth diode; the other end of the third inductor is connected with the negative input end of the bipolar transconductance amplifier and one end of the fifth capacitor respectively; the other end of the fifth capacitor and the anode of the sixth diode are respectively grounded; the output end of the bipolar transconductance amplifier outputs a ripple signal.
Preferably, the power amplifier further comprises a power amplifier, an input end of the power amplifier is connected with an output end of the bipolar transconductance amplifier, and an output end of the power amplifier outputs the power-amplified ripple signal.
The technical scheme of the embodiment of the utility model, following advantage has:
the embodiment of the utility model provides a ripple generating device for 28V DC power supply characteristic intelligent test system of special type vehicle combines bipolar transconductance amplifier through the charge-discharge of electric capacity, ingenious production ripple signal under control signal's control, its signal quality is high, and the amplitude range is wide (0 ~ 10V), and with low costs, the energy consumption is little, the wiring is simple, small, convenient to use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic block diagram of a specific example of a special vehicle 28V dc power supply characteristic intelligent test system in embodiment 1 of the present invention;
fig. 2 is a schematic block diagram of a specific example of an input electrical parameter testing unit in embodiment 1 of the present invention;
fig. 3 is a schematic block diagram of a specific example of the simulation electrical parameter testing unit in embodiment 1 of the present invention;
fig. 4 is a schematic block diagram of a specific example of an output electrical parameter testing unit in embodiment 1 of the present invention;
fig. 5 is a circuit diagram of a specific example of the ripple generating unit in embodiment 1 of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In describing the present invention, it is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and/or "comprising," when used in this specification, are intended to specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "connected" and "coupled" are to be interpreted broadly, e.g., as meaning either directly connected to one another or indirectly connected to one another through intervening elements, or both; either a wireless or a wired connection. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a special vehicle 28V dc power supply characteristic intelligent test system, as shown in fig. 1, including: the device comprises a data acquisition unit 1, a display control unit 2, a peak generation unit 3, a ripple generation unit 4, a program control power supply unit 5, a signal injection unit 6, a power supply parameter detection unit 7, a temperature and humidity monitoring unit 8 and the like.
The data acquisition unit 1 is used for acquiring and outputting actual signals, wherein the actual signals comprise real vehicle power grid output signals and signals input and output by the tested equipment, the real vehicle power grid output signals comprise steady-state voltage, ripple voltage, surge voltage, spike pulse voltage and starting disturbance voltage, and the signals input and output by the tested equipment comprise spike pulse voltage output by the tested equipment, spike pulse voltage input into the tested equipment and surge voltage input into the tested equipment under fault and fault-free conditions;
the display and control unit 2 is used for acquiring the actual signal output by the data acquisition unit 1, extracting the characteristics of the acquired signal, acquiring the power supply signal characteristics specified in the GJB298-87 standard, judging whether the characteristics of the actual signal meet the requirements of the GJB298-87 standard and generating a test report, and generates and outputs a first command containing steady-state voltage, surge voltage and start disturbance voltage parameters, a second command containing spike parameters and a third command containing ripple parameters according to the characteristics of the power supply signal or the characteristics of the actual signal specified in the GJB298-87 standard, and acquires and outputs the power supply parameters output by the power supply parameter detection unit 7, adjusting a steady state voltage, a surge voltage, a starting disturbance voltage parameter, a peak parameter and a ripple parameter according to the power supply parameter, and acquiring and displaying a temperature and humidity value output by the temperature and humidity monitoring unit 8;
the peak generating unit 3 is configured to obtain a second instruction output by the display control unit 2, generate a peak signal according to the second instruction, and output the peak signal;
the ripple generating unit 4 is configured to obtain a third instruction output by the display control unit 2, generate a ripple signal according to the third instruction, and output the ripple signal;
the program-controlled power supply unit 5 is used for power on and power off control, leakage protection and system emergency stop of the system, supplying power to other parts in the system, acquiring a first instruction output by the display control unit 2, generating a direct-current power supply signal according to the first instruction and outputting the direct-current power supply signal;
the signal injection unit 6 is used for respectively acquiring the spike signal output by the spike generation unit 3, the ripple signal output by the ripple generation unit 4 and the direct-current power supply signal output by the program-controlled power supply unit 5, selectively superposing the spike signal and the ripple signal on the direct-current power supply signal to generate an electric signal conforming to the GJB298-87 standard or an electric signal similar to an actual signal, and outputting the electric signal so as to provide the electric signal for the tested equipment for testing the power supply adaptability of the tested equipment;
the power supply parameter detection unit 7 is used for acquiring the electric signal output by the signal injection unit 6, detecting the power supply parameter of the electric signal actually output by the system and feeding back the detection result to the display control unit 2 to form a control loop;
and the temperature and humidity monitoring unit 8 is used for detecting and outputting the temperature and humidity value of the working environment.
Preferably, as shown in fig. 2, when the display control unit 2, the peak generation unit 3, the ripple generation unit 4, the program-controlled power supply unit 5, the signal injection unit 6, and the power supply parameter detection unit 7 mainly constitute an input electrical parameter test unit, the display control unit 2 is configured to obtain a power supply signal characteristic specified in the GJB298-87 standard, generate a first instruction including a steady-state voltage, a surge voltage, and a start disturbance voltage parameter, a second instruction including a peak parameter, and a third instruction including a ripple parameter according to the power supply signal characteristic specified in the GJB298-87 standard, obtain a power supply parameter output by the power supply parameter detection unit 7, and adjust the steady-state voltage, the surge voltage, the start disturbance voltage parameter, the peak parameter, and the ripple parameter according to the power supply parameter; the peak generating unit 3 is configured to obtain a second instruction output by the display control unit 2, generate a peak signal according to the second instruction, and output the peak signal; the ripple generating unit 4 is configured to obtain a third instruction output by the display control unit 2, generate a ripple signal according to the third instruction, and output the ripple signal; the program-controlled power supply unit 5 is used for power on and power off control, leakage protection and system emergency stop of the system, supplying power to other parts in the system, acquiring a first instruction output by the display control unit 2, generating a direct-current power supply signal according to the first instruction and outputting the direct-current power supply signal; the signal injection unit 6 is used for respectively acquiring the spike signal output by the spike generation unit 3, the ripple signal output by the ripple generation unit 4 and the direct-current power supply signal output by the program-controlled power supply unit 5, selectively superposing the spike signal and the ripple signal on the direct-current power supply signal to generate an electric signal in accordance with the GJB298-87 standard and outputting the electric signal so as to provide the electric signal for the tested equipment, and is used for testing the power supply adaptability of the tested equipment to the GJB298-87 standard; the power parameter detection unit 7 is used for acquiring the electric signal output by the signal injection unit 6, detecting the power parameter of the electric signal actually output by the system and feeding back the detection result to the display control unit 2 to form a control loop.
Preferably, as shown in fig. 3, when the data acquisition unit 1, the display control unit 2, the spike generation unit 3, the ripple generation unit 4, the program-controlled power supply unit 5, the signal injection unit 6, and the power supply parameter detection unit 7 mainly form a simulation electrical parameter test unit, the data acquisition unit 1 is configured to acquire and output an actual signal; the display and control unit 2 is used for acquiring an actual signal output by the data acquisition unit 1, extracting characteristics of the acquired signal, generating and outputting a first instruction containing steady-state voltage, surge voltage and start disturbance voltage parameters, a second instruction containing peak parameters and a third instruction containing ripple parameters according to the characteristics of the actual signal, acquiring and outputting power supply parameters output by the power supply parameter detection unit 7, and adjusting the steady-state voltage, the surge voltage, the start disturbance voltage parameters, the peak parameters and the ripple parameters according to the power supply parameters; the peak generating unit 3 is configured to obtain a second instruction output by the display control unit 2, generate a peak signal according to the second instruction, and output the peak signal; the ripple generating unit 4 is configured to obtain a third instruction output by the display control unit 2, generate a ripple signal according to the third instruction, and output the ripple signal; the program-controlled power supply unit 5 is used for power on and power off control, leakage protection and system emergency stop of the system, supplying power to other parts in the system, acquiring a first instruction output by the display control unit 2, generating a direct-current power supply signal according to the first instruction and outputting the direct-current power supply signal; the signal injection unit 6 is used for respectively acquiring the spike signal output by the spike generation unit 3, the ripple signal output by the ripple generation unit 4 and the direct-current power supply signal output by the program control power supply unit 5, selectively superposing the spike signal and the ripple signal on the direct-current power supply signal to generate an electric signal similar to an actual signal and outputting the electric signal so as to provide the electric signal for the tested equipment and test the power supply adaptability of the tested equipment; the power parameter detection unit 7 is used for acquiring the electric signal output by the signal injection unit 6, detecting the power parameter of the electric signal actually output by the system and feeding back the detection result to the display control unit 2 to form a control loop.
Preferably, as shown in fig. 4, when the data acquisition unit 1 and the display control unit 2 mainly constitute an output electrical parameter testing unit, the data acquisition unit 1 is configured to acquire and output an actual signal; the display and control unit 2 is used for acquiring the actual signal output by the data acquisition unit 1, extracting the characteristics of the acquired signal, acquiring the power supply signal characteristics specified in the GJB298-87 standard, judging whether the characteristics of the actual signal meet the requirements of the GJB298-87 standard and generating a test report.
According to the 28V direct-current power supply characteristic intelligent test system for the special vehicle, the adaptability of the tested equipment to spikes, surges and the like specified in GJB298-87 and the adaptability of the tested equipment to real vehicle signals can be respectively tested by constructing the input electric parameter test unit, the simulation electric parameter test unit and the output electric parameter test unit, the characteristics of the real vehicle power grid voltage are extracted, and whether the characteristics meet the requirements of GJB298-87 or not is analyzed, so that the test and analysis of the power supply characteristics are comprehensively realized by the simulation means system, and the system has the advantage of small influence of the real vehicle working conditions.
As shown in fig. 5, the ripple generating unit 4 includes a bipolar transconductance amplifier T4, a tenth resistor R10, an eleventh resistor R11, a fourth capacitor C4, a fifth capacitor C5, a third inductor L3, a fifth diode D5, and a sixth diode D6;
one end of the tenth resistor R10 inputs a control signal, the control signal is from an output command signal of the display control unit 2 to assign the frequency and the amplitude of a ripple signal to be generated, and the other end of the tenth resistor R10 is respectively connected with the positive input end of the bipolar transconductance amplifier T4, one end of the eleventh resistor R11 and one end of the fourth capacitor C4; the other end of the fourth capacitor C4 is grounded; the other end of the eleventh resistor R11 is connected with the anode of the fifth diode D5; the cathode of the fifth diode D5 is connected to one end of the third inductor L3 and the cathode of the sixth diode D6, respectively; the other end of the third inductor L3 is connected to the negative input end of the bipolar transconductance amplifier T4 and one end of the fifth capacitor C5, respectively; the other end of the fifth capacitor C5 and the anode of the sixth diode D6 are respectively grounded; the output terminal of the bipolar transconductance amplifier T4 outputs a ripple signal.
In operation, when the control signal is a high voltage signal, the fourth capacitor C4 is charged, and when the control signal is a low voltage signal, the fourth capacitor C4 is discharged, so that the positive input signal of the transconductance amplifier T4 is a signal with an approximate triangular waveform. The tenth resistor R10 and the fourth capacitor C4 also form a low-pass filter, so that high-frequency components in the input control signal are filtered, and the quality of the generated ripple signal is improved. After the signal of the approximate triangular waveform is subjected to the averaging action of the eleventh resistor R11, the fifth diode D5, the sixth diode D6, the third inductor L3 and the fifth capacitor C5, the average value of the positive input signal of the bipolar transconductance amplifier T4 is obtained and is input to the negative input end of the bipolar transconductance amplifier T4. After passing through the bipolar transconductance amplifier T4, a ripple signal is generated and output.
Preferably, the ripple generating unit 4 further includes a power amplifier, an input end of the power amplifier is connected to an output end of the bipolar transconductance amplifier T4, and an output end of the power amplifier outputs the power-amplified ripple signal, so as to increase an amplitude of the ripple signal.
The ripple generating unit skillfully generates ripple signals under the control of control signals by combining the charge and discharge of the capacitor with the bipolar transconductance amplifier, and has the advantages of high signal quality, low cost, low energy consumption, simple wiring, small volume and convenient use.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (2)
1. A ripple generating device for a special vehicle 28V direct current power supply characteristic intelligent test system is characterized by comprising: the circuit comprises a bipolar transconductance amplifier, a tenth resistor, an eleventh resistor, a fourth capacitor, a fifth capacitor, a third inductor, a fifth diode and a sixth diode;
a control signal is input to one end of the tenth resistor to assign the frequency and the amplitude of a ripple signal to be generated, and the other end of the tenth resistor is connected with the positive input end of the bipolar transconductance amplifier, one end of the eleventh resistor and one end of the fourth capacitor respectively; the other end of the fourth capacitor is grounded; the other end of the eleventh resistor is connected with the anode of the fifth diode; the negative electrode of the fifth diode is respectively connected with one end of the third inductor and the negative electrode of the sixth diode; the other end of the third inductor is connected with the negative input end of the bipolar transconductance amplifier and one end of the fifth capacitor respectively; the other end of the fifth capacitor and the anode of the sixth diode are respectively grounded; the output end of the bipolar transconductance amplifier outputs a ripple signal.
2. The ripple generating device according to claim 1, further comprising a power amplifier, wherein an input terminal of the power amplifier is connected to an output terminal of the bipolar transconductance amplifier, and an output terminal of the power amplifier outputs the power-amplified ripple signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022083178.0U CN213689885U (en) | 2020-09-18 | 2020-09-18 | Ripple wave generating device for 28V direct-current power supply characteristic intelligent test system of special vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022083178.0U CN213689885U (en) | 2020-09-18 | 2020-09-18 | Ripple wave generating device for 28V direct-current power supply characteristic intelligent test system of special vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213689885U true CN213689885U (en) | 2021-07-13 |
Family
ID=76748643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022083178.0U Active CN213689885U (en) | 2020-09-18 | 2020-09-18 | Ripple wave generating device for 28V direct-current power supply characteristic intelligent test system of special vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213689885U (en) |
-
2020
- 2020-09-18 CN CN202022083178.0U patent/CN213689885U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105738836B (en) | A kind of DC/DC converters automatization test system | |
| CN105759144A (en) | Anti-interference simulation test system and method for vehicle electrical system | |
| CN202600108U (en) | Testing system for printed circuit board | |
| CN110940926A (en) | Online test system for impedance spectrum of power battery of electric automobile | |
| CN204116589U (en) | A kind of current transformer for metering secondary circuit failure pick-up unit | |
| CN202770942U (en) | Electric-fire monitoring detector, and failure detecting circuit for residual current sensor of same | |
| CN102445616B (en) | Interference simulating experimental method for vehicle DC power supply | |
| CN109031069A (en) | The diagnostic system of high-tension switch cabinet Partial discharge signal | |
| CN108562860A (en) | Electric energy meter two-way accessory power supply power consumption Auto-Test System and test method | |
| CN213689885U (en) | Ripple wave generating device for 28V direct-current power supply characteristic intelligent test system of special vehicle | |
| CN111579892A (en) | Test system and method for cascaded SVG power module | |
| CN213689884U (en) | Signal injection device for special vehicle 28V direct-current power supply characteristic intelligent test system | |
| CN207662959U (en) | Electronic controller tester adapter current collection circuit | |
| CN213185923U (en) | Peak generating device for intelligent test system of 28V direct-current power supply characteristics of special vehicle | |
| CN111044786A (en) | Insulation monitor | |
| CN202102045U (en) | Filter capacitor voltage tester | |
| CN204575732U (en) | A kind of electrokinetic cell voltage sampling circuit | |
| CN211293060U (en) | Constant-power switching power supply early warning circuit | |
| CN213185922U (en) | Surge generating device for special vehicle 28V direct-current power supply characteristic intelligent test system | |
| CN210405228U (en) | Intelligent robot safety control system | |
| CN109030923A (en) | A kind of intelligent substation's prior-warning device | |
| CN201397378Y (en) | Power system stabilizer test waveform recorder for detecting uncompensated property of excitation system of generator | |
| CN208656633U (en) | Switching Power Supply output filter circuit | |
| CN208705429U (en) | The diagnostic system of high-tension switch cabinet Partial discharge signal | |
| CN108183727B (en) | Electricity consumption information interference signal filtering device, electricity consumption information acquisition system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 102200 building 17, ruiqijiayuan, Huilongguan street, Changping District, Beijing Patentee after: Beijing teenmai measurement and Control Technology Co.,Ltd. Address before: 102200 room 507, 5th floor, building 1, yard 6, Gaoxin 4th Street, Huilongguan town, Changping District, Beijing Patentee before: Beijing teenmai measurement and Control Technology Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |