A test system and a test device

Abstract

The present disclosure provides a test system and a test device, wherein the test system comprises an electronic load, a power supply, a connection module and a first control module; the first end of the connection module is connected to the output end of the electronic load, and the second end of the connection module is connected to the output end of the power supply; the first control module is used to control the conduction state between the first end and the second end of the connection module in response to a function selection of the test system.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the field of electronic circuit technology, and more specifically, to a testing system and testing equipment. Background Art

[0002] Electronic load is a device that consumes electrical energy by controlling the conduction amount (duty cycle) of internal power (MOSFET) or transistor, and relying on the power dissipation of power tube. It can accurately detect the load voltage, precisely adjust the load current, and simulate load short circuit. The simulated load is inductive resistance and capacitance, and the capacitive load current rise time.

[0003] The essence of a battery simulator is a DC regulated power supply with controllable output voltage, and the variation pattern of its output voltage is consistent with the battery characteristics that need to be simulated.

[0004] In the prior art, electronic loads, battery simulators, and power supplies are all independent devices. However, in some test scenarios, multiple devices including electronic loads, battery simulators, and power supplies need to be used alternately or in combination, which requires the use of multiple devices and is costly. Summary of the invention

[0005] An object of the embodiments of the present disclosure is to provide a testing system and a testing device.

[0006] According to a first aspect of an embodiment of the present disclosure, a test system is provided, including an electronic load, a power supply, a connection module and a first control module; a first end of the connection module is connected to an output end of the electronic load, and a second end of the connection module is connected to an output end of the power supply;

[0007] The first control module is used to control the conduction state between the first end and the second end of the connection module in response to the function selection of the test system.

[0008] Optionally, the first control module is used to control the disconnection between the first end and the second end of the connection module when the function is selected as an independent electronic load or an independent power supply, so that the electronic load and the power supply work independently.

[0009] Optionally, the first control module is used to control conduction between the first end and the second end of the connection module when the function is selected as a battery simulator obtained by combining an electronic load and a power supply, so that the electronic load and the power supply combination work as a battery simulator.

[0010] Optionally, the test system further includes a first output terminal and a second output terminal, wherein the first output terminal is connected to the output terminal of the electronic load, and the second output terminal is connected to the output terminal of the power supply.

[0011] Optionally, the test system also includes a third output terminal, which is connected to the third terminal of the connection module, and the first control module is used to control the conduction state between the first terminal and the third terminal of the connection module and the conduction state between the second terminal and the third terminal of the connection module in response to the function selection.

[0012] Optionally, the test system further includes a second control module, and the second control module is used to control the electronic load to provide a target impedance.

[0013] Optionally, the test system further includes a third control module, and the third control module is used to control the power supply to provide target power.

[0014] Optionally, the connection module includes a relay and / or a transistor.

[0015] Optionally, the test system further includes a first power supply module and a second power supply module, the first power supply module is used to power the electronic load, the second power supply module is used to power the power supply, and the first power supply module, the second power supply module, the electronic load and the power supply are isolated from each other.

[0016] According to a second aspect of the present disclosure, a testing device is provided, comprising the testing system as described in the first aspect of the present disclosure.

[0017] Through the embodiments of the present disclosure, the test system can provide an independent electronic load and power supply by controlling the conduction state between the first end and the second end of the connection module; or, a battery simulator composed of an electronic load and a power supply can be provided to meet the test requirements of the three instruments and reduce manufacturing costs; moreover, the test system can unify the circuit design and produce three instruments, namely, electronic load, programmable power supply and battery simulator, by changing the materials, so that a single design is compatible with multiple devices; in addition, multiple test items such as battery performance, product electrical performance, charger performance, etc. can be tested on the same test platform without the need for multi-station testing, thus saving space and cost; in addition, the connection wires can be saved, making it more convenient and quick to build a test environment.

[0018] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0020] Figure 1 is a block diagram of a test system according to one embodiment of the present disclosure;

[0021] Figure 2 is a block diagram of a test system according to one embodiment of the present disclosure. DETAILED DESCRIPTION

[0022] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0023] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0024] Technologies, methods and equipment known to persons of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered part of the specification.

[0025] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0026] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0027] <Test System Embodiment>

[0028] The present disclosure provides a testing system such as Figure 1 As shown, the test system 1000 may include an electronic load 1100 , a power supply 1200 , a connection module 1300 and a first control module 1400 .

[0029] A first end of the connection module 1300 is connected to an output end of the electronic load 1100 , and a second end of the connection module 1300 is connected to an output end of the power supply 1200 .

[0030] The first control module 1400 is used to control the conduction state between the first terminal and the second terminal of the connection module 1300 in response to the function selection of the test system 1000 .

[0031] The electronic load 1100 is an independent programmable constant voltage and constant current load, which is used to absorb the voltage and current of external input. It has mature and comprehensive electronic load functions and can be used as an electronic load alone.

[0032] The power supply 1200 is an independent programmable power supply for outputting voltage and current to the outside. It has mature and comprehensive programmable power supply functions and can be used as a separate power supply.

[0033] In this embodiment, the user can select functions of the test system according to actual test scenarios.

[0034] In one example, the test system 1000 may have at least one button for triggering function selection, and the user may select the function through the button. For example, the test system 1000 may have a first button corresponding to an independent electronic load function, a second button corresponding to an independent power supply function, and a third button corresponding to a combined function of an electronic load and a power supply. When the user clicks the first button, the selection of the independent electronic load function is triggered; when the user clicks the second button, the selection of the independent power supply function is triggered; when the user clicks the third button, the selection of the combined function of the electronic load and the power supply is triggered.

[0035] In one embodiment of the present disclosure, the first control module 1400 is used to control the disconnection between the first and second ends of the connection module 1300 when the function is selected as an independent electronic load or an independent power supply, so that the electronic load 1100 and the power supply 1200 work independently.

[0036] In this embodiment, by controlling the disconnection between the first and second ends of the connection module 1300, the output end of the electronic load 1100 can be disconnected from the output end of the power supply 1200, thereby allowing the electronic load 1100 and the power supply 1200 to work independently.

[0037] This embodiment controls the electronic load and the power supply to work independently, so that the test system can provide relatively independent electronic loads and power supplies that do not affect each other, so that the user can build a test environment based on independent electronic loads or independent power supplies, and can perform test items such as charger testing and product power supply testing.

[0038] In another embodiment of the present disclosure, the first control module 1400 is used to control the conduction between the first end and the second end of the connection module 1300 when the function is selected as a battery manager obtained by a combination of an electronic load and a power supply, so that the electronic load 1100 and the power supply 1200 are combined to work as a battery simulator.

[0039] In this embodiment, by controlling the conduction between the first end and the second end of the connection module 1300, the output end of the electronic load 1100 and the output end of the power supply 1200 can be connected, and the electrical structures of the electronic load and the power supply are connected and operate synchronously, so that the electronic load 1100 and the power supply 1200 are combined to work as a battery simulator, which can be used to test the product battery management related functions.

[0040] This embodiment controls the electronic load and the power supply combination to work for the battery simulator, so that the test system can provide a battery simulator for the user to build a test environment according to the battery simulator obtained by the electronic load and the power supply combination.

[0041] Through the embodiments of the present disclosure, the test system can provide an independent electronic load and power supply by controlling the conduction state between the first end and the second end of the connection module; or, a battery simulator composed of an electronic load and a power supply can be provided to meet the test requirements of the three instruments and reduce manufacturing costs; moreover, the test system can unify the circuit design and produce three instruments, namely, electronic load, programmable power supply and battery simulator, by changing the materials, so that a single design is compatible with multiple devices; in addition, multiple test items such as battery performance, product electrical performance, charger performance, etc. can be tested on the same test platform without the need for multi-station testing, thus saving space and cost; in addition, the connection wires can be saved, making it more convenient and quick to build a test environment.

[0042] In one embodiment of the present disclosure, Figure 2 As shown, the test system 1000 further includes a first output terminal 1510 and a second output terminal 1520 , wherein the first output terminal 1510 is connected to the output terminal of the electronic load 1100 , and the second output terminal 1520 is connected to the output terminal of the power supply 1200 .

[0043] In this embodiment, when the first terminal and the second terminal of the control connection module 1300 are connected, the first output terminal 1510 and the second output terminal 1520 can be reused.

[0044] Through this embodiment, when the test system provides an independent electronic load, it can be connected to the external circuit to be tested through the first output terminal, and when the test system provides an independent power supply, it can be connected to the external circuit to be tested through the second output terminal, so as to test the external circuit to be tested.

[0045] In one embodiment of the present disclosure, Figure 2 As shown, the test system 1000 also includes a third output terminal 1530, which is connected to the third terminal of the connection module 1300. The first control module is used to control the conduction state between the first terminal and the third terminal of the connection module 1300 and the conduction state between the second terminal and the third terminal of the connection module 1300 in response to the function selection.

[0046] In this embodiment, when the function is selected as a battery simulator obtained by combining an electronic load and a power supply, the conduction between the first end and the third end of the connection module 1300 and the conduction between the second end and the third end of the connection module 1300 can be controlled to achieve conduction between the first end and the second end of the connection module 1300.

[0047] Through this embodiment, when the test system provides a battery simulator, the third output terminal can be connected to an external circuit to be tested to test the external circuit to be tested.

[0048] In one embodiment of the present disclosure, Figure 2 As shown, the test system 1000 further includes a second control module 1600 , and the second control module 1600 is used to control the electronic load 1100 to provide a target impedance.

[0049] In one embodiment of the present disclosure, Figure 2 As shown, the test system 1000 further includes a third control module 1700 , and the third control module 1700 is used to control the power supply 1200 to provide target power.

[0050] In this embodiment, the first control module 1400 and the third control module 1700 may be provided by one processor, or the first control module 1400 and the second control module 1600 may be provided by one processor, or the first control module 1400, the second control module 1600 and the third control module 1700 may be provided by one processor, or the first control module 1400, the second control module 1600 and the third control module 1700 may be provided by different processors, which is not limited here.

[0051] When the second control module 1600 and the third control module 1700 are provided by different processors, the second control module 1600 and the third control module 1700 are both connected to the first control module 1400, and the second control module 1600 and the third control module 1700 can determine whether they are working according to the function selection received by the first control module 1400.

[0052] Specifically, when the function selection received by the first control module 1400 is an independent electronic load, the second control module 1600 controls the electronic load 1100 to provide the target impedance, and the third control module 1700 may not work or enter a low power consumption mode; when the function selection received by the first control module 1400 is an independent power supply, the third control module 1700 controls the power supply 1200 to provide the target power supply, and the second control module 1600 may not work or enter a low power consumption mode; when the function selection received by the first control module 1400 is an independent electronic load and an independent power supply, the second control module 1600 controls the electronic load 1100 to provide the target impedance, and the third control module 1700 controls the power supply 1200 to provide the target power supply; when the function selection received by the first control module 1400 is a battery simulator obtained by combining an electronic load and a power supply, the second control module 1600 controls the electronic load 1100 to provide the target impedance, and the third control module 1700 controls the power supply 1200 to provide the target power supply.

[0053] In one embodiment of the present disclosure, the connection module 1300 includes a relay and / or a transistor.

[0054] In an example, the connection module 1300 includes two relays, the first contact of the first relay can be connected to the positive output terminal of the electronic load 1100, the second contact of the first relay can be connected to the positive output terminal of the power supply 1200, the first contact of the second relay can be connected to the negative output terminal of the electronic load 1100, the second contact of the second relay can be connected to the negative output terminal of the power supply 1200, and the control contacts of the two relays can be connected to the first control module 1400.

[0055] In another example, the connection module 1300 may include four relays, the first contact of the first relay may be connected to the positive output terminal of the electronic load 1100, the second contact of the first relay may be connected to the positive pole of the third output terminal 1530, the first contact of the second relay may be connected to the positive pole of the third output terminal 1530, the second contact of the second relay may be connected to the positive output terminal of the power supply 1200, the first contact of the third relay may be connected to the negative output terminal of the electronic load 1100, the second contact of the third relay may be connected to the negative pole of the third output terminal 1530, the first contact of the fourth relay may be connected to the negative pole of the third output terminal 1530, the second contact of the fourth relay may be connected to the negative pole output terminal of the power supply 1200, and the control contacts of the four relays may be connected to the first control module 1400.

[0056] In an example, the connection module 1300 includes two transistors, the first end of the first transistor can be connected to the positive output terminal of the electronic load 1100, the second end of the first transistor can be connected to the positive output terminal of the power supply 1200, the first end of the second transistor can be connected to the negative output terminal of the electronic load 1100, the second end of the second transistor can be connected to the negative output terminal of the power supply 1200, and the control ends of the two transistors can be connected to the first control module 1400.

[0057] In another example, the connection module 1300 may include four transistors, the first end of the first transistor may be connected to the positive output terminal of the electronic load 1100, the second end of the first transistor may be connected to the positive electrode of the third output terminal 1530, the first end of the second transistor may be connected to the positive electrode of the third output terminal 1530, the second end of the second transistor may be connected to the positive output terminal of the power supply 1200, the first end of the third transistor may be connected to the negative output terminal of the electronic load 1100, the second end of the third transistor may be connected to the negative electrode of the third output terminal 1530, the first end of the fourth transistor may be connected to the negative electrode of the third output terminal 1530, the second end of the fourth transistor may be connected to the negative output terminal of the power supply 1200, and the control ends of the four transistors may be connected to the first control module 1400.

[0058] In one embodiment of the present disclosure, Figure 2 As shown, the test system 1000 also includes a first power supply module 1800 and a second power supply module 1900. The first power supply module 1800 is used to power the electronic load 1100, and the second power supply module 1900 is used to power the power supply 1200. The first power supply module 1800 and the second power supply module 1900 are isolated from each other.

[0059] In this embodiment, the first power supply module 1800 may transform and rectify the mains power to obtain the first direct current to supply power to the electronic load 1100. The second power supply module 1900 may transform and rectify the mains power to obtain the second direct current to supply power to the power supply 1200.

[0060] Furthermore, the first power supply module 1800 and the second power supply module 1900 are isolated from each other, that is, the negative pole of the first direct current and the negative pole of the second direct current are isolated from each other.

[0061] Through this implementation, when the function of the test system is selected as an independent electronic load or an independent power supply, the electronic load 1100 and the power supply 1200 can work independently without affecting each other.

[0062] <Test Equipment Example>

[0063] This embodiment provides a testing device, which may include the testing system described in any of the above embodiments.

[0064] The present invention may be a system, a method and / or a computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present invention.

[0065] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0066] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0067] The computer program instructions for performing the operation of the present invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages, such as Smalltalk, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. Computer-readable program instructions may be executed entirely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be personalized by utilizing the state information of the computer-readable program instructions, and the electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present invention.

[0068] Various aspects of the present invention are described herein with reference to the flow charts and / or block diagrams of the methods, devices (systems) and computer program products according to embodiments of the present invention. It should be understood that each box of the flow chart and / or block diagram and the combination of each box in the flow chart and / or block diagram can be implemented by computer-readable program instructions.

[0069] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0070] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0071] The flow charts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a part of a module, a program segment or an instruction, and a part of the module, a program segment or an instruction contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that it is equivalent to implement it by hardware, implement it by software, and implement it by combining software and hardware.

[0072] Embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A testing system, characterized in that: It includes an electronic load, a power supply, a connection module and a first control module; the first end of the connection module is connected to the output end of the electronic load, and the second end of the connection module is connected to the output end of the power supply; The first control module is used to control the conduction state between the first end and the second end of the connection module in response to the function selection of the test system.

2. The test system according to claim 1, characterized in that: The first control module is used to control the disconnection between the first end and the second end of the connection module when the function is selected as an independent electronic load or an independent power supply, so that the electronic load and the power supply work independently.

3. The test system according to claim 1, characterized in that: The first control module is used to control the conduction between the first end and the second end of the connection module when the function selection is a battery simulator obtained by combining an electronic load and a power supply, so that the electronic load and the power supply combination work as a battery simulator.

4. The test system according to claim 1, characterized in that: The test system further includes a first output terminal and a second output terminal, wherein the first output terminal is connected to the output terminal of the electronic load, and the second output terminal is connected to the output terminal of the power supply.

5. The test system according to claim 3, characterized in that: The test system also includes a third output terminal, which is connected to the third terminal of the connection module. The first control module is used to control the conduction state between the first terminal and the third terminal of the connection module and the conduction state between the second terminal and the third terminal of the connection module in response to the function selection.

6. The test system according to claim 1, characterized in that: The test system further includes a second control module, and the second control module is used to control the electronic load to provide a target impedance.

7. The test system according to claim 1, characterized in that: The test system further includes a third control module, and the third control module is used to control the power supply to provide target power.

8. The test system according to claim 1, characterized in that: The connection module includes a relay and / or a transistor.

9. The test system according to claim 1, characterized in that: The test system also includes a first power supply module and a second power supply module, the first power supply module is used to power the electronic load, the second power supply module is used to power the power supply, and the first power supply module, the second power supply module, the electronic load and the power supply are isolated from each other.

10. A testing device, characterized in that: Comprising a test system as claimed in any one of claims 1 to 9.

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