Driving circuit

Abstract

The utility model relates to the technical field of electronic systems, in particular to a driving circuit, which comprises a switch assembly, a load adjusting assembly, an acquisition assembly and a control assembly, and is characterized in that the switch assembly comprises a first input end for inputting a first driving signal, a second input end for inputting a second driving signal, a first output end and a second output end; the first output end and the second output end are respectively connected with the load adjusting assembly and the acquisition assembly, the output end of the acquisition assembly is connected with one end of the control assembly, the first output end of the acquisition assembly is used for outputting first power, and the second output end of the acquisition assembly is used for outputting second power; the control assembly is also connected with the to-be-driven switch, and the control assembly drives the to-be-driven switch to be closed when the first power and / or the second power meet the driving condition corresponding to the current test requirement. Therefore, the problems of high test cost, incomplete test points and the like in related technologies are solved, and the test efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic systems, in particular to a driving circuit. Background Art

[0002] Relays are widely used in the electronics industry. They come in a variety of sizes and have varying quality. Each relay manufacturer has its own advantages and disadvantages. Some have small loads, while others have large loads. When an MCU (Micro-Controller Unit) needs to drive a relay, the selection and matching of the drive circuit and the relay is very important. The drive circuit design rarely changes, so the selection and matching of the relay is extremely important. The selection of relays involves the impact of cost and supply guarantee, so the changes are relatively large. Relays from multiple manufacturers have different driving effects under the same drive circuit.

[0003] In related technologies, such as patent CN218956745U "A relay test circuit and device", when selecting a relay, developers often purchase the actual product and then connect it to the drive circuit to test the drive effect.

[0004] However, the disadvantages of the testing methods of related technologies are often obvious. The testing cost is very high, and various relays need to be purchased for testing, which takes a lot of time. In addition, the test points are not comprehensive. When doing pressure testing, the monitoring is not comprehensive, and it is impossible to achieve all-round monitoring of ultra-long pressure testing, which urgently needs to be solved. Utility Model Content

[0005] The utility model provides a driving circuit to solve the problems of high testing cost and incomplete testing points in related technologies.

[0006] The first aspect of the utility model provides a driving circuit, comprising: a switch component, a load adjustment component, a collection component and a control component, wherein:

[0007] The switch component comprises a first input terminal for inputting a first driving signal, a second input terminal for inputting a second driving signal, a first output terminal and a second output terminal, wherein the first output terminal is respectively connected to the first terminal of the load regulating component and the first collecting terminal of the collecting component, and the second output terminal is respectively connected to the second terminal of the load regulating component and the second collecting terminal of the collecting component;

[0008] The first output end of the acquisition component and the second output end of the acquisition component are both connected to one end of the control component, the first output end of the acquisition component is used to output the first power, and the second output end of the acquisition component is used to output the second power;

[0009] The other end of the control component is connected to the switch to be driven, and the control component drives the switch to be driven to close when the first power and / or the second power meets the driving condition corresponding to the current test requirement.

[0010] According to the above technical means, the problems of high testing cost and incomplete testing points in related technologies are solved, and the testing efficiency and quality are improved.

[0011] Optionally, the switch assembly comprises:

[0012] A first switch, one end of which is connected to the driving signal output device, and the other end of which is respectively connected to the first end of the load adjustment component and the first collection end of the collection component;

[0013] A second switch, one end of the second switch is connected to the driving signal output device, and the other end of the second switch is respectively connected to the second end of the load adjustment component and the second collection end of the collection component.

[0014] According to the above technical means, by setting the first switch and the second switch, the input of the first drive signal and the second drive signal can be clearly distinguished and controlled, thereby enhancing the controllability and stability of the circuit.

[0015] Optionally, the third terminal of the load regulating component is connected to the ground node, and the fourth terminal of the load regulating component is connected to the power supply node.

[0016] According to the above technical means, the third end of the load regulation component is connected to the ground node, and the fourth end is connected to the power node, which ensures stable power supply and grounding of the circuit and improves the stability and reliability of the circuit.

[0017] Optionally, the switch to be driven is a relay.

[0018] According to the above technical means, the switch to be driven is a relay, and whether the relay to be tested is suitable for the hardware circuit can be accurately evaluated according to the driving circuit of the utility model.

[0019] Optionally, the load adjustment component is an equivalent adjustable load resistor.

[0020] According to the above technical means, by adjusting the size of the load adjustment component, it is estimated whether different types of relays can be used by the current driver board, and whether the tested relay is suitable for the hardware circuit can be more accurately evaluated.

[0021] Optionally, the control component includes:

[0022] A control unit, wherein an input end of the control unit is connected to a first output end of the acquisition component and a second output end of the acquisition component;

[0023] An output unit, wherein an input end of the output unit is connected to an output end of the control unit, and an output end of the output unit is connected to the switch to be driven.

[0024] According to the above technical means, the control component includes a control unit and an output unit, which realizes clear logic control so that the circuit can respond quickly after receiving feedback from the acquisition component.

[0025] Optionally, the above-mentioned driving circuit further includes:

[0026] A display component is connected to the control component and is used to display the current test requirement.

[0027] According to the above technical means, the current test requirements can be intuitively displayed through the display component, thereby improving the user experience.

[0028] Optionally, the above-mentioned driving circuit further includes:

[0029] A reminder component, which is connected to the control component and is used for providing an acoustic reminder and / or an optical reminder when the first power and / or the second power do not meet the driving conditions corresponding to the current test requirement.

[0030] According to the above technical means, the reminder component can give a reminder when the circuit does not meet the driving conditions, thereby improving the safety of the circuit.

[0031] Optionally, the reminder component includes:

[0032] an acoustic reminder unit, the acoustic reminder unit being connected to the control component and configured to provide an acoustic reminder when the first power and / or the second power does not satisfy a driving condition corresponding to the current test requirement;

[0033] and / or,

[0034] An optical reminder unit, the optical reminder unit is connected to the control component, and is used for performing an optical reminder when the first power and / or the second power does not meet the driving conditions corresponding to the current test requirement.

[0035] According to the above technical means, a suitable reminder method can be selected according to needs, thereby improving the diversity and flexibility of reminders.

[0036] According to the driving circuit provided by the embodiment of the utility model, the first output end and the second output end of the switch component are respectively connected to the load adjustment component and the collection component, the output end of the collection component is connected to one end of the control component, the first output end of the collection component is used to output the first power, and the second output end of the collection component is used to output the second power; the control component is also connected to the switch to be driven, and the control component drives the switch to be driven to close when the first power and / or the second power meet the driving conditions corresponding to the current test requirements. Thus, the problems of high test cost and incomplete test points in the related technology are solved, and the test efficiency and quality are improved.

[0037] Beneficial effects of the utility model:

[0038] (1) The utility model can conduct a relatively comprehensive test and evaluation of the single-chip microcomputer drive circuit, simulate real-world scenarios for closed-loop simulation testing, monitor the entire drive system in all directions and in real time, test the compatibility of the relay and the drive circuit, and meet the requirements of long-term stress testing to capture abnormal phenomena and record feedback.

[0039] (2) The utility model estimates whether different types of relays can be used by the current driver board by adjusting the size of the load adjustment component, and can more accurately evaluate whether the relay under test is suitable for the hardware circuit.

[0040] (3) The utility model can monitor and analyze in real time whether the relay is driven during testing, thereby achieving convenient and fast testing and comprehensive testing.

[0041] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0043] Figure 1 A schematic diagram of a driving circuit according to an embodiment of the present utility model;

[0044] Figure 2 FIG. 4 is a schematic diagram of a driving circuit according to an embodiment of the utility model.

[0045] Reference numerals:

[0046] 10-driving circuit, 100-switch component, 101-first switch, 102-second switch, 200-load adjustment component, 201-first resistor, 202-second resistor, 300-collection component, 400-control component, 401-control unit, 402-output unit, 500-switch to be driven, A-high-side output signal, B-low-side output signal. DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0048] The driving circuit of the embodiment of the utility model is described below with reference to the accompanying drawings. In view of the problems mentioned in the above background technology such as high testing cost and incomplete testing points, the utility model provides a driving circuit, the first output end and the second output end of the switch component are respectively connected to the load adjustment component and the acquisition component, the output ends of the acquisition component are connected to one end of the control component, the first output end of the acquisition component is used to output the first power, and the second output end of the acquisition component is used to output the second power; the control component is also connected to the switch to be driven, and the control component drives the switch to be driven to close when the first power and / or the second power meet the driving conditions corresponding to the current test requirements. As a result, the problems of high testing cost and incomplete testing points in the related technology are solved, and the testing efficiency and quality are improved.

[0049] Specifically, Figure 1 The present invention is a schematic diagram of a driving circuit provided in an embodiment of the present invention.

[0050] like Figure 1As shown, the driving circuit 10 includes: a switch component 100, a load regulating component 200, a collection component 300 and a control component 400, wherein the switch component 100 includes a first input terminal for inputting a first driving signal, a second input terminal for inputting a second driving signal, a first output terminal and a second output terminal, the first output terminal is respectively connected to the first terminal of the load regulating component 200 and the first collection terminal of the collection component 300, the second output terminal is respectively connected to the second terminal of the load regulating component 200 and the second collection terminal of the collection component 300, the third terminal of the load regulating component 200 is connected to the ground node, and the fourth terminal of the load regulating component 200 is connected to the power supply node; the first output terminal of the collection component 300 and the second output terminal of the collection component 300 are both connected to one terminal of the control component 400, the first output terminal of the collection component 300 is used to output the first power, and the second output terminal of the collection component 300 is used to output the second power; the other terminal of the control component 400 is connected to the switch to be driven, and the control component 400 drives the switch to be driven to close when the first power and / or the second power meet the driving conditions corresponding to the current test requirements.

[0051] In some embodiments, the first drive signal may be a high-side drive, the second drive signal may be a low-side drive, the acquisition component 300 may be an I / O acquisition device, and the switch to be driven may be a relay.

[0052] Specifically, the MCU driving circuit driving relay is generally divided into three forms, high-side driving, low-side driving and bilateral driving. The present invention is compatible with the above three driving forms of high-side driving, low-side driving and bilateral driving. Taking the first driving signal being a high-side driving signal and the second driving signal being a low-side driving signal as an example:

[0053] When the driving circuit is bilaterally driven, the high-side drive passes through the load regulating component 200 to the ground, and the low-side drive passes through the load regulating component 200 to the power supply VCC, and the control component 400 outputs high and low levels to control the switch to be driven to close.

[0054] When the driving circuit is a single high-side drive, the high-side drive passes through the load adjustment component 200 to the ground, the simulated HS high level output by the control component 400 is connected to the control end of the switch to be driven, and the other control end of the switch to be driven is grounded, controlling the switch to be driven to be closed.

[0055] When the driving circuit is a single low-side drive, the low-side drive passes through the load adjustment component 200 to the power supply VCC, the control component 400 outputs a simulated LS low level connected to the control end of the switch to be driven, and the other control end of the switch to be driven is connected to the power supply to control the switch to be driven to be closed.

[0056] The acquisition component 300 respectively acquires the high-side output signal A and the low-side output signal B. When the high-side output is not output, it is generally defaulted to a low level, and when it is output, it is pulled up to a high level. When the low-side drive is not enabled, it is in a high-impedance state, and when it is output, it is a low level. By judging the first power outputted by the high-side output signal A, or the second power outputted by the low-side output signal B, or judging at the same time whether the first power and the second power meet the standard of driving the relay, it is judged whether the current driving capacity meets the conditions for driving the relay.

[0057] Specifically, by referring to the specification sheets of each relay, the rated voltage and power of the relay can be obtained. The rated voltage and power of the relay and the maximum and minimum operating voltage and power can be used to determine whether the collected high-side output signal A and low-side output signal B meet the standards of high and low-side driving, and then output the corresponding simulated high and low level outputs to the real relay circuit.

[0058] In this way, it is possible to capture the drive signal in real time and analyze the high and low side drive outputs in real time, and to drive the relay on and off in real time, thus meeting the requirements of closed-loop testing and the concept of hardware in the loop. It is also possible to replay and analyze the data in the closed-loop test, thus improving the test accuracy and avoiding missing abnormal phenomena.

[0059] Optionally, in some embodiments, Figure 2 As shown, the load adjustment component 200 may include a first resistor R1 and a second resistor R2, and the first resistor R1 and the second resistor R2 are both equivalent adjustable load resistors.

[0060] Specifically, the load adjustment component is an equivalent adjustable load resistor, which can flexibly adjust the load of the circuit to meet different test requirements. For example, by adjusting the size of the load resistor, it is estimated whether different types of relays can be used by the current driver board, and whether the relay under test is suitable for the hardware circuit can be more accurately evaluated.

[0061] Optionally, in some embodiments, the control component 400 includes: a control unit 401, the input end of the control unit 401 is connected to the first output end of the acquisition component 300 and the second output end of the acquisition component 300; an output unit 402, the input end of the output unit 402 is connected to the output end of the control unit 401, and the output end of the output unit 402 is connected to the switch 500 to be driven.

[0062] The control unit 401 may be a host computer PC, and the output unit 402 may be an I / O output.

[0063] Specifically, the control unit 401 receives the input from the acquisition component 300 (i.e., the output of the first power and the second power), and performs a logical judgment based on the collected power information to determine whether the driving condition corresponding to the current test requirement is met. The input end of the output unit 402 is connected to the output end of the control unit 401, and the output end of the output unit 402 is connected to the switch to be driven 500. According to the judgment result of the control unit 401, the output unit 402 is responsible for generating a control signal to drive the switch to be driven 500 to close.

[0064] Optionally, in some embodiments, Figure 2 As shown, the switch component 100 includes: a first switch 101, one end of the first switch 101 is connected to the driving signal output device, and the other end of the first switch 101 is respectively connected to the first end of the load adjustment component 200 and the first collection end of the collection component 300; a second switch 102, one end of the second switch 102 is connected to the driving signal output device, and the other end of the second switch 102 is respectively connected to the second end of the load adjustment component 200 and the second collection end of the collection component 300.

[0065] The drive signal output device may be an ECU.

[0066] Specifically, if Figure 2 As shown, the ECU is used to output a high-side driver HS and a low-side driver LS. When the first switch 101 and the second switch 102 are both closed, the high-side driver HS is connected to the ground node GND through the switch component 100 and the first resistor R1, and the low-side driver LS is connected to the power supply VCC through the switch component 100 and the second resistor R1. Among them, the switch component 100 is controlled by the control unit 401, and can also simulate the open circuit or short circuit diagnosis of the relay drive end.

[0067] When the driving circuit is designed as a single high-side driver, only the high-side driver HS is driven, and the low-side driver LS does not output by default and is in a high-impedance state. At this time, it is only necessary to connect the high-side driver to the ground through the first resistor R1, and the control unit 401 controls the output unit 402 to output a simulated HS high level connected to one end of the control terminal of the real relay 500, and the other control end of the real relay 500 is grounded.

[0068] When the driving circuit is designed as a single low-side drive, only the low-side drive LS is driven, and the high-side drive HS is not output by default. At this time, it is only necessary to connect the low-side drive to the power supply VCC through the second resistor R2, and the control unit 401 controls the output unit 402 to output the simulated LS low level to one end of the control end of the real relay 500, and the other control end of the real relay 500 is connected to the power supply.

[0069] Optionally, in some embodiments, the driving circuit 10 further includes: a display component, which is connected to the control component 400 and is used to display the current test requirements.

[0070] Specifically, the display component is connected to the control component 400, and can display the current test requirement according to the output drive signal. For example, when the drive signal is a single high-side drive, the display component displays that the current test requirement is a single high-side drive test; when the drive signal is a single low-side drive, the display component displays that the current test requirement is a single low-side drive test; when the drive signal is a bilateral drive, the display component displays that the current test requirement is a bilateral drive test.

[0071] Optionally, in some embodiments, the above-mentioned driving circuit 10 further includes: a reminder component, which is connected to the control component and is used to provide acoustic reminders and / or optical reminders when the first power and / or the second power do not meet the driving conditions corresponding to the current test requirements.

[0072] Specifically, when it is determined that the first power output by the high-side output signal A does not meet the standard for driving the relay, or the second power output by the low-side output signal B does not meet the standard for driving the relay, or both the first power and the second power do not meet the standard for driving the relay, that is, when it is determined that the current driving capability does not meet the conditions for driving the relay, the reminder component can remind the user that the tested relay is not suitable for the current hardware circuit. The reminder method can be an acoustic reminder, or an optical reminder, or both an acoustic reminder and an optical reminder, to inform the user that the current hardware circuit configuration cannot meet the driving requirements of the relay.

[0073] Optionally, in some embodiments, the reminder component includes: an acoustic reminder unit, which is connected to the control component and is used to provide an acoustic reminder when the first power and / or the second power does not meet the driving conditions corresponding to the current test requirements; and / or an optical reminder unit, which is connected to the control component and is used to provide an optical reminder when the first power and / or the second power does not meet the driving conditions corresponding to the current test requirements.

[0074] Optionally, the acoustic reminder unit may be a buzzer or a voice speaker, and the optical reminder unit may be an LED light.

[0075] Specifically, the combined use of the acoustic reminder unit and the optical reminder unit provides users with a variety of reminder methods. They can choose the appropriate reminder method according to different environments and needs. For example, they can remind only through the acoustic reminder unit or the optical reminder unit, or they can remind through the acoustic reminder unit or the optical reminder unit at the same time. There is no specific limitation here, thereby improving the adaptability of the system and user satisfaction.

[0076] For example, when the first power does not meet the driving conditions corresponding to the current test requirements, or the second power does not meet the driving conditions corresponding to the current test requirements, or both the first power and the second power do not meet the driving conditions corresponding to the current test requirements, reminders are given only through the acoustic reminder unit, or only through the optical reminder unit, or through both the acoustic reminder unit and the optical reminder unit.

[0077] According to the driving circuit proposed in the embodiment of the utility model, the first output end and the second output end of the switch component are respectively connected to the load adjustment component and the collection component, the output end of the collection component is connected to one end of the control component, the first output end of the collection component is used to output the first power, and the second output end of the collection component is used to output the second power; the control component is also connected to the switch to be driven, and the control component drives the switch to be driven to close when the first power and / or the second power meet the driving conditions corresponding to the current test requirements. Thus, the problems of high test cost and incomplete test points in the related technology are solved, and the test efficiency and quality are improved.

[0078] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0079] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "N" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0080] In addition, each functional unit in each embodiment of the utility model can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into one module. The above-mentioned integrated module can be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0081] The storage medium mentioned above may be a read-only memory, a disk or an optical disk, etc. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A driving circuit, characterized in that: include: Switching components, load regulation components, acquisition components and control components, wherein: The switch component comprises a first input terminal for inputting a first driving signal, a second input terminal for inputting a second driving signal, a first output terminal and a second output terminal, wherein the first output terminal is respectively connected to the first terminal of the load regulating component and the first collecting terminal of the collecting component, and the second output terminal is respectively connected to the second terminal of the load regulating component and the second collecting terminal of the collecting component; The first output end of the acquisition component and the second output end of the acquisition component are both connected to one end of the control component, the first output end of the acquisition component is used to output the first power, and the second output end of the acquisition component is used to output the second power; The other end of the control component is connected to the switch to be driven, and the control component drives the switch to be driven to close when the first power and / or the second power meets the driving condition corresponding to the current test requirement.

2. The circuit according to claim 1, characterized in that The switch assembly comprises: A first switch, one end of which is connected to the driving signal output device, and the other end of which is respectively connected to the first end of the load adjustment component and the first collection end of the collection component; A second switch, one end of the second switch is connected to the driving signal output device, and the other end of the second switch is respectively connected to the second end of the load adjustment component and the second collection end of the collection component.

3. The circuit according to claim 1, characterized in that The third terminal of the load regulating component is connected to the ground node, and the fourth terminal of the load regulating component is connected to the power supply node.

4. The circuit according to claim 1, characterized in that The switch to be driven is a relay.

5. The circuit according to claim 1, characterized in that The load adjustment component is an equivalent adjustable load resistor.

6. The circuit according to claim 1, characterized in that The control component comprises: A control unit, wherein an input end of the control unit is connected to a first output end of the acquisition component and a second output end of the acquisition component; An output unit, wherein an input end of the output unit is connected to an output end of the control unit, and an output end of the output unit is connected to the switch to be driven.

7. The circuit according to claim 1, characterized in that Also includes: A display component is connected to the control component and is used to display the current test requirement.

8. The circuit according to claim 1, characterized in that Also includes: A reminder component, which is connected to the control component and is used for providing an acoustic reminder and / or an optical reminder when the first power and / or the second power do not meet the driving conditions corresponding to the current test requirement.

9. The circuit according to claim 8, characterized in that The reminder component includes: an acoustic reminder unit, the acoustic reminder unit being connected to the control component and configured to provide an acoustic reminder when the first power and / or the second power does not satisfy a driving condition corresponding to the current test requirement; and / or, An optical reminder unit, the optical reminder unit is connected to the control component, and is used for providing an optical reminder when the first power and / or the second power do not meet the driving conditions corresponding to the current test requirement.

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