Protection circuit for electronic product and method for realizing circuit protection

Abstract

The invention discloses a protection circuit for an electronic product and a method for realizing circuit protection, relates to the technical field of emergency protection circuit devices, solves the problem of circuit protection, and adopts the scheme of the protection circuit for the electronic product. The circuit comprises a load circuit, a power supply circuit, a triode circuit, a diode circuit and a load converter, the power supply circuit is connected with the load circuit and the triode circuit, the triode circuit realizes circuit current control through resistor voltage division, and an output end of the triode circuit is connected with an input end of the diode circuit. The output end of the diode circuit is connected with the input end of the load converter, and circuit voltage division is achieved through a load resistor. Intelligent detection of multiple lines is achieved through the artificial intelligence technology, the line detection capacity is greatly improved, universality is high, and the method is suitable for multiple electronic products.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency protection circuit devices, and more specifically to a protection circuit for electronic products and a method for implementing circuit protection. Background Art

[0002] Electronic products are products that use electricity as the basis of their work, mainly including: watches, smart phones, telephones, televisions, video players (VCD, SVCD, DVD), video recorders, camcorders, radios, radio recorders, combination speakers, laser recorders (CD), computers, game consoles, mobile communication products, etc. Early products were mainly based on electronic tubes, hence the name electronic products. These products are often prone to failures due to short circuits, open circuits, excessive loads or other factors during operation.

[0003] In the conventional electronic circuit detection process, one electronic product usually uses one circuit. This method can easily cause multiple electronic products to be incompatible, which results in a waste of resources. In the working process of the above-mentioned multiple electronic products, it is very necessary to design a universal or compatible protection circuit. Summary of the invention

[0004] In view of the deficiencies of the above-mentioned technologies, the present invention discloses a protection circuit for electronic products and a method for implementing circuit protection, which has strong compatibility and can be applied to electronic products of various models or types.

[0005] In order to achieve the above technical effects, the present invention adopts the following technical solutions:

[0006] A protection circuit for electronic products, comprising:

[0007] A load circuit, a power supply circuit, a triode circuit, a diode circuit and a load converter, wherein the power supply circuit is connected to the load circuit and the triode circuit, the triode circuit realizes circuit current control through resistance voltage division, the output end of the triode circuit is connected to the input end of the diode circuit, the output end of the diode circuit is connected to the input end of the load converter, and the circuit voltage division is realized through the load resistance.

[0008] A circuit protection method includes the following steps:

[0009] (S1) Convert the difference data information in the circuit into a mathematical formula model, as shown in formula (1):

[0010]

[0011] In formula (1), T(x) represents the complete flow operation cycle of the protection line, σ represents the operating parameters of the protection line, and σ ω2 represents the operating parameter function of the protection line, P represents the operating power of the operating line, χ represents the maximum estimated likelihood ratio of line difference comparison, represents the maximum estimated likelihood ratio of even-numbered line difference comparison, ρ represents the line abnormal node variable, N represents the number of protection line parameter groups; ω represents the protection line type in the protection line operation parameter function;

[0012] (S2) Using the ESI algorithm, determine whether the electronic product operation circuit is running smoothly, and distinguish abnormal electronic product data nodes from normal electronic product data nodes. The judgment basis is shown in formula (2):

[0013]

[0014] In formula (2), G(x) represents the ESI algorithm to determine the line state function, xi represents the unknown abnormal variable of the electronic circuit node, γ represents the normal operating state line parameter, and i represents the number of groups of node abnormal variables;

[0015] (S3) The degree of abnormal operation of a single line is Q, and the data information of the maximum abnormal line is shown in formula (3):

[0016] Nmax=ρ- 2 [Q- 1 (α)-Q- 1 (1-β)] 2 (3)

[0017] In formula (3), Nmax represents the maximum abnormality that may occur during line operation, Q represents the abnormality of a single line, α represents the abnormality coefficient of a single-direction line under ideal conditions, β represents the abnormality coefficient of other additional lines, and ρ represents the abnormal node variable of the line;

[0018] (S4) In the ESI algorithm, data simulation is performed based on the established lines, and by tracking their operating status, the average abnormality coefficients of the tracked multiple lines are calculated in sequence, as shown in formula (4):

[0019]

[0020] In formula (4), ASN represents the average abnormal coefficient value of the serialized line of the electronic product, L represents the normal operation parameters of the protection line of the electronic product, θ represents the standard parameters of the electronic product line, A represents the abnormal coefficient of the unidirectional operation of the line, B represents the abnormal coefficient of the bidirectional operation of the line, E represents the abnormal operation parameter of the comparison group, λi represents the proportional coefficient variable, and i represents the number of proportional coefficient groups;

[0021] (S5) According to the determined line abnormality degree and parameters, the obtained data is input into the ESI algorithm program to obtain the line abnormal node position data of two different operation modes as shown in formula (5):

[0022]

[0023] In formula (5), E represents the abnormal operation parameter of the comparison group, N represents the number of branches in operation, H0 represents the unidirectional operation of the operating circuit, H1 represents the bidirectional operation of the operating circuit, λi represents the proportional coefficient variable, i represents the number of proportional coefficient groups, ρ represents the line abnormal node variable, and I represents the number of branch groups.

[0024] The positive and beneficial effects of the present invention are:

[0025] The present invention realizes intelligent detection of various lines through artificial intelligence technology, greatly improves the line detection capability, and has strong versatility and is applicable to various electronic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor, among which:

[0027] Figure 1 It is a circuit diagram of the present invention;

[0028] Figure 2 The figure is a schematic diagram of the structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] Embodiment (1) Circuit

[0031] like Figure 1 and Figure 2 As shown, a protection circuit for electronic products includes

[0032] A load circuit, a power supply circuit, a triode circuit, a diode circuit and a load converter, wherein the power supply circuit is connected to the load circuit and the triode circuit, the triode circuit realizes circuit current control through resistance voltage division, the output end of the triode circuit is connected to the input end of the diode circuit, the output end of the diode circuit is connected to the input end of the load converter, and the circuit voltage division is realized through the load resistance.

[0033] In a specific embodiment, for the hardware part of the protection circuit, the present invention performs circuit protection based on the installation of an SPC circuit. The real-time operating circuit voltage and current value when an electronic product is running is the biggest factor affecting the safety of the electronic product. In order to improve the safe and stable operation of electronic products during use, the present invention improves the circuit in terms of hardware by using the SPC (Safe Protect Circuit) safety protection circuit method on the basic circuit of the external circuit of the electronic product, and improves the circuit operation capacity by increasing the first section voltage and reducing the terminal voltage, so that the operating circuit meets the most stable and safe operation mode.

[0034] The SPC design of the protection circuit during the operation of electronic products is completed by increasing the transformer capacity and the line carrying capacity. The main device is the load converter, which controls the phase load on both sides and the load carrying capacity of the line to achieve the purpose of improving the stable operation capacity. By grasping the saturated load state of the operating line, the circuit transmission current reaches the maximum value while maintaining safety and stability. Through SPC transformation, the circuit forms a controllable circuit operation structure, and the rapid response of the protection hardware in the SPC operation branch is used to make the load ratio that the overall line can withstand far greater than 1. The reactive compensation device in the line completes the line loss compensation process to achieve the purpose of stabilizing the voltage source.

[0035] In the process of remodeling and designing the protection circuit of the electronic product operation, the present invention forms a controllable rectifier transmission protection circuit through the SPC circuit. The stable operation of the full-load transmission line is achieved. The overall protection circuit has strong voltage and current bearing capabilities and can meet the needs of multiple lines at the same time.

[0036] Embodiment (2) Protection method

[0037] The algorithm model of the circuit protection of the present invention is partly based on the End Sequence Inspection (ESI) algorithm, which mainly completes the real-time inspection of the circuit when the electronic product is running by inspecting the abnormal change data sequence during the operation of the spectrum sensing circuit. By establishing a program to segment the tracking signal, the limit likelihood ratio is finally obtained, and the nodes where the line operation may be abnormal are found, so as to install a protection circuit.

[0038] A circuit protection method comprises the following steps:

[0039] (S1) Convert the difference data information in the circuit into a mathematical formula model, as shown in formula (1):

[0040]

[0041] In formula (1), T(x) represents the complete flow operation cycle of the protection line, σ represents the operating parameters of the protection line, represents the operating parameter function of the protection line, P represents the operating power of the operating line, χ represents the maximum estimated likelihood ratio of line difference comparison, represents the maximum estimated likelihood ratio of even-numbered line difference comparison, ρ represents the line abnormal node variable, N represents the number of protection line parameter groups; ω represents the protection line type in the protection line operation parameter function;

[0042] (S2) Using the ESI algorithm, determine whether the electronic product operation circuit is running smoothly, and distinguish abnormal electronic product data nodes from normal electronic product data nodes. The judgment basis is shown in formula (2):

[0043]

[0044] In formula (2), G(x) represents the ESI algorithm to determine the line state function, xi represents the unknown abnormal variable of the electronic circuit node, γ represents the normal operating state line parameter, and i represents the number of groups of node abnormal variables;

[0045] (S3) The degree of abnormal operation of a single line is Q, and the data information of the maximum abnormal line is shown in formula (3):

[0046]

[0047] In formula (3), Nmax represents the maximum abnormality that may occur during line operation, Q represents the abnormality of a single line, α represents the abnormality coefficient of a single-direction line under ideal conditions, β represents the abnormality coefficient of other additional lines, and ρ represents the abnormal node variable of the line;

[0048] (S4) In the ESI algorithm, data simulation is performed based on the established lines, and by tracking their operating status, the average abnormality coefficients of the tracked multiple lines are calculated in sequence, as shown in formula (4):

[0049]

[0050] In formula (4), ASN represents the average abnormal coefficient value of the serialized line of the electronic product, L represents the normal operation parameters of the protection line of the electronic product, θ represents the standard parameters of the electronic product line, A represents the abnormal coefficient of the unidirectional operation of the line, B represents the abnormal coefficient of the bidirectional operation of the line, E represents the abnormal operation parameter of the comparison group, λi represents the proportional coefficient variable, and i represents the number of proportional coefficient groups;

[0051] (S5) According to the determined line abnormality degree and parameters, the obtained data is input into the ESI algorithm program to obtain the line abnormal node position data of two different operation modes as shown in formula (5):

[0052]

[0053] In formula (5), E represents the abnormal operation parameter of the comparison group, N represents the number of branches in operation, H0 represents the unidirectional operation of the operating circuit, H1 represents the bidirectional operation of the operating circuit, λi represents the proportional coefficient variable, i represents the number of proportional coefficient groups, ρ represents the line abnormal node variable, and I represents the number of branch groups.

[0054] The ESI algorithm analyzes the maximum abnormality level of the electronic product circuit during operation, and infers the position of the abnormal node of the line based on the calculated average abnormality level of the line, which makes the state of the line to be protected clearer. The above formula can be used to determine the position of the abnormal node in different situations, so as to connect the protection circuit.

[0055] In a specific embodiment, the line is improved based on the SPC safety protection circuit method, and the line operation capacity is improved by increasing the voltage of the first section and reducing the voltage of the terminal, so that the operating line meets the most stable and safe operation mode. In terms of the algorithm model, the present invention is based on the terminal sequence inspection algorithm, and the tracking signal is processed in sections by establishing a program, and finally the limit likelihood ratio is obtained, and the nodes where the line operation may be abnormal are found, so as to install a protection circuit.

[0056] The overall scheme diagram of the electronic product protection circuit and circuit protection method designed in the present invention is composed of different module parts. The first is to determine whether the line operation mode is unidirectional operation or bidirectional operation. Then through the instruction control module, the function of the instruction control module is to issue system instructions, which is an important module for process operation. The function of the AC-DC conversion module is to convert the current so that the overall system operation is stable first. The function of the receiving module is to receive information such as the circuit operation mode and instructions, as a transfer station for information exchange. The LDO analysis module is used to determine the abnormal operation of the line. The data after determination enters the DAC data conversion module for data conversion, and is converted into data that can be received by the algorithm program, which facilitates the rapid progress of the process, and then through the communication module. The function of the communication module is to summarize and output the instruction data information of the previous module. The modules are interconnected and are all associated with the protection line module. The protection line module is externally connected to the instruction output module, so that the protection status of the line can be given directive feedback.

[0057] The present invention performs circuit protection based on the installation of an SPC circuit. The real-time operating circuit voltage and current value when an electronic product is running is the biggest factor affecting the safety of the electronic product. In order to improve the safe and stable operation of the electronic product when it is in use, the present invention improves the circuit in terms of hardware by performing an SPC (Safe Protect Circuit) safety protection circuit method on the basic circuit of the external circuit of the electronic product, and improves the circuit operation capacity by increasing the first-segment voltage and reducing the terminal voltage, so that the operating circuit meets the most stable and safe operation mode.

[0058] The SPC design of the protection circuit during the operation of electronic products is completed by increasing the transformer capacity and the line carrying capacity. The main device is the load converter, which controls the phase load on both sides and the load carrying capacity of the line to achieve the purpose of improving the stable operation capacity. By grasping the saturated load state of the operating line, the circuit transmission current reaches the maximum value while maintaining safety and stability. Through SPC transformation, the circuit forms a controllable circuit operation structure, and the rapid response of the protection hardware in the SPC operation branch is used to make the load ratio that the overall line can withstand far greater than 1. The reactive compensation device in the line completes the line loss compensation process to achieve the purpose of stabilizing the voltage source.

[0059] In the process of redesigning the protection circuit of the electronic product operation, the present invention forms a controllable rectifier transmission protection circuit through the SPC circuit. The stable operation of the full-load transmission line is achieved. The overall protection circuit has strong voltage and current bearing capabilities and can meet the needs of multiple lines at the same time.

[0060] The end sequence inspection (ESI) algorithm of the algorithm model part of the circuit protection of the present invention mainly completes the real-time inspection of the circuit when the electronic product is running by inspecting the abnormal change data sequence during the operation of the spectrum sensing circuit. By establishing a program to process the tracking signal in segments, the limit likelihood ratio is finally obtained, and the nodes where the line operation may be abnormal are found, so as to install a protection circuit.

[0061] Embodiment (3) Application embodiment

[0062] The present invention is about the protection circuit of electronic products and the method for realizing circuit protection. The present invention improves the line based on the SPC safety protection circuit method, improves the line operation capacity by increasing the head end voltage and reducing the terminal voltage, so that the operating line meets the most stable and safe operation mode. In terms of the algorithm model, the present invention is based on the terminal sequence inspection algorithm, and the tracking signal is processed in segments by establishing a program, and finally the limit likelihood ratio is obtained, and the nodes where the line operation may be abnormal are found, so as to install the protection circuit.

[0063] In one embodiment, a protection circuit module is provided, and the protection circuit module is connected to a command control module, an AC-DC conversion module, a receiving module, an LDO analysis module, a DAC data conversion module, an algorithm module, a communication module and a command output module. In a specific application, the protection circuit module is connected to different modules.

[0064] In specific applications, the first thing is to determine whether the line operation mode is unidirectional or bidirectional. Then through the instruction control module, the function of the instruction control module is to issue system instructions, which is an important module for process operation. The function of the AC-DC conversion module is to convert the current so that the overall system operation remains stable. The function of the receiving module is to receive information such as the circuit operation mode and instructions, as a transfer station for information exchange. The LDO analysis module is used to determine the abnormal operation of the line. The data after determination enters the DAC data conversion module for data conversion, and is converted into data that can be received by the algorithm program, which facilitates the rapid progress of the process. Then through the communication module, the function of the communication module is to summarize and output the instruction data information of the previous module. The modules are interconnected and are all associated with the protection line module. The protection line module is connected to the instruction output module, so that the protection status of the line can be given directive feedback.

[0065] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that these specific embodiments are only illustrative, and those skilled in the art may omit, replace, and change the details of the above methods and systems in various ways without departing from the principles and essence of the present invention. For example, merging the above method steps so as to perform substantially the same functions in substantially the same manner to achieve substantially the same results is within the scope of the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

Claims

1. A protection circuit for electronic products, characterized in that: include A load circuit, a power supply circuit, a triode circuit, a diode circuit and a load converter, wherein the power supply circuit is connected to the load circuit and the triode circuit, the triode circuit realizes circuit current control through resistance voltage division, the output end of the triode circuit is connected to the input end of the diode circuit, the output end of the diode circuit is connected to the input end of the load converter, and the circuit voltage division is realized through the load resistance.

2. A circuit protection method comprising the following steps: (S1) Convert the difference data information in the circuit into a mathematical formula model, as shown in formula (1): In formula (1), Indicates the complete flow operation cycle of the protection line. Indicates the operating parameters of the protection line, represents the operating parameter function of the protection line, Indicates the operating power of the running line. represents the maximum estimated likelihood ratio of line difference comparison, represents the maximum estimated likelihood ratio of even line difference comparison, represents the line abnormal node variable, N represents the number of protection line parameter groups; Represents the protection line type in the operation parameter function of the protection line; (S2) The ESI algorithm is used to determine whether the electronic product operation circuit is running smoothly, and the abnormal electronic product data nodes are distinguished from the normal electronic product data nodes. The judgment basis is shown in formula (2): In formula (2), Indicates the ESI algorithm to determine the line status function, Indicates unknown abnormal variables at electronic circuit nodes, Indicates the line parameters in normal operation state, The number of groups representing node anomaly variables; (S3) The degree of abnormal operation of a single line is , the maximum abnormal line data information is shown in formula (3): In formula (3), Indicates the maximum abnormality that may occur during line operation. Indicates the degree of abnormal operation of a single line. It represents the abnormal coefficient of a single-direction line under ideal conditions. The abnormal coefficients of other additional lines represented by Indicates the line abnormal node variable; (S4) In the ESI algorithm, data simulation is performed based on the established lines. By tracking their operating status, the average abnormality coefficient of the tracked multiple lines is calculated in sequence, as shown in formula (4): In formula (4), Indicates the average abnormal coefficient value of the serialization circuit of electronic products, Indicates the normal operating parameters of the electronic product protection circuit. Indicates the circuit specification parameters of electronic products. Indicates the abnormal coefficient of one-way operation of the line. Indicates the abnormal coefficient of bidirectional operation of the line, Indicates abnormal parameters of the comparison group. represents the proportional coefficient variable, It represents the number of proportional coefficient groups; (S5) According to the determined line abnormality degree and parameters, the obtained data is input into the ESI algorithm program to obtain the line abnormal node position data of two different operation modes as shown in formula (5): In formula (5), Indicates abnormal parameters of the comparison group. Indicates the number of branches in operation. Indicates that the circuit is running in one direction. Indicates that the circuit operates in both directions. represents the proportional coefficient variable, It represents the number of proportional coefficient groups. represents the line abnormal node variable, and l represents the number of branch groups.

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