A power supply dual voltage conversion control method and control system

Abstract

The application discloses a power supply double-voltage conversion control method and a control system. The method comprises the following steps: a setting step, a voltage detection step, a voltage multiplication control step, an under-voltage fault identification step and an over-voltage fault identification step. According to the comparison result of the bus voltage of the power supply and the first voltage standard value, the first voltage standard value, the first voltage standard value and the first voltage standard value, whether the power supply starts the voltage multiplication control function is controlled, and then according to the comparison result of the bus voltage of the power supply and the under-voltage threshold value and the over-voltage threshold value, whether the voltage exists the over-voltage fault and the under-voltage fault is identified, and the safety in the use process of the electric product is improved.

Description

Technical Field

[0001] This invention relates to the field of intelligent control technology, and more specifically to a power supply dual voltage conversion control method and control system. Background Technology

[0002] Given that some countries or regions have two voltage options, 127V / 60Hz and 220V / 60Hz, the power supply devices configured in electrical products exported to these countries can only support one of these voltages, which makes it difficult for these products to be widely adopted.

[0003] To address the aforementioned technical problems, existing technologies often design power supplies for electrical products as wide-voltage power supplies. While these power supplies are compatible with a wide range of input voltages, their circuitry is complex, their cost is extremely high, and after-sales maintenance is difficult. To solve these problems, those skilled in the art have incorporated voltage multiplier selection modules into the power supplies of such products. By detecting the voltage amplitude input at the mains input port, the activation of this module is selected, allowing the power supply to be compatible with both 127V and 220V. However, this solution fails to detect power supply faults, making it difficult for users to promptly detect power supply malfunctions during use. This can lead to economic losses for users and can cause significant damage to the electrical product, making subsequent maintenance difficult. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the purpose of this invention is to provide a power supply dual voltage conversion control method and control system.

[0005] The technical solution adopted by this invention to solve the problem is: A power supply dual-voltage conversion control method includes the following steps: The setup steps include setting the undervoltage threshold, overvoltage threshold, first voltage standard value, second voltage standard value, third voltage standard value, and fourth voltage standard value. The first voltage standard value is less than the second voltage standard value, the second voltage standard value is less than the third voltage standard value, and the third voltage standard value is less than the fourth voltage standard value. Voltage detection steps: Detect the bus voltage of the power supply; The voltage doubling control procedure is as follows: if the bus voltage of the power supply is greater than the first voltage standard value and less than the second voltage standard value, the voltage doubling control function is enabled; if the bus voltage of the power supply is greater than the third voltage standard value and less than the fourth voltage standard value, the voltage doubling control function is not enabled. The undervoltage fault identification process is as follows: if the bus voltage of the power supply is less than the undervoltage voltage threshold, it is identified as an undervoltage fault in the power supply. The overvoltage fault identification process involves identifying an overvoltage fault in the power supply if the bus voltage exceeds the overvoltage threshold.

[0006] As a further improvement to the above technical solution, this control method also includes: The fault detection identification process involves identifying a voltage detection fault if the bus voltage of the power supply is greater than the second voltage standard value but less than the third voltage standard value.

[0007] As a further improvement to the above technical solution, the setting step also includes setting a standard duration; This control method also includes: The detection process is repeated. After completing the undervoltage fault identification step, the overvoltage fault identification step, and the detection fault identification step, a timer is started. After the timer exceeds the standard duration, the undervoltage fault identification step, the overvoltage fault identification step, and the detection fault identification step are repeated. If the detection result remains unchanged, the corresponding fault identification result is output.

[0008] This invention also discloses a dual-voltage conversion control system for power supplies, comprising: The setting module is used to set the undervoltage threshold, overvoltage threshold, first voltage standard value, second voltage standard value, third voltage standard value and fourth voltage standard value. The first voltage standard value is less than the second voltage standard value, the second voltage standard value is less than the third voltage standard value and the third voltage standard value is less than the fourth voltage standard value. Voltage detection module, used to detect the bus voltage of the power supply; The voltage multiplier control module is used to enable the voltage multiplier control function if the bus voltage of the power supply is greater than the first voltage standard value and less than the second voltage standard value, and not enable the voltage multiplier control function if the bus voltage of the power supply is greater than the third voltage standard value and less than the fourth voltage standard value. The undervoltage fault identification module is used to identify an undervoltage fault in the power supply if the bus voltage of the power supply is less than the undervoltage voltage threshold. The overvoltage fault identification module is used to identify an overvoltage fault in the power supply if the bus voltage of the power supply is greater than the overvoltage threshold.

[0009] As a further improvement to the above technical solution, this control system also includes: The fault detection identification module is used to identify a voltage detection fault if the bus voltage of the power supply is greater than the second voltage standard value and less than the third voltage standard value.

[0010] As a further improvement to the above technical solution, the setting module is also used to set a standard duration; This control system also includes: The repeat detection module is used to start timing after the undervoltage fault identification module, the overvoltage fault identification module, and the detection fault identification module complete their respective operations. After the timing duration exceeds the standard duration, the module controls the undervoltage fault identification module, the overvoltage fault identification module, and the detection fault identification module to repeat their respective operations. If the detection result remains unchanged, the module outputs the corresponding fault identification result.

[0011] The beneficial effects of this invention are: This technical solution controls whether the power supply starts the voltage multiplier control function based on the comparison results of the power supply bus voltage with the first voltage standard value, the first voltage standard value, the first voltage standard value and the first voltage standard value. Then, it identifies whether there is an overvoltage fault or an undervoltage fault based on the comparison results of the power supply bus voltage with the undervoltage threshold and the overvoltage threshold, thereby improving the safety of electrical products during use. Attached Figure Description

[0012] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the control method of the present invention. Detailed Implementation

[0014] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0015] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0016] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0017] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0018] Reference Figure 1 This application discloses a power supply dual voltage conversion control method, the first embodiment of which includes the following steps: The setup steps include setting the undervoltage threshold, overvoltage threshold, first voltage standard value, second voltage standard value, third voltage standard value, and fourth voltage standard value. The first voltage standard value is less than the second voltage standard value, the second voltage standard value is less than the third voltage standard value, and the third voltage standard value is less than the fourth voltage standard value. Voltage detection steps: Detect the bus voltage of the power supply; The voltage doubling control procedure is as follows: if the bus voltage of the power supply is greater than the first voltage standard value and less than the second voltage standard value, the voltage doubling control function is enabled; if the bus voltage of the power supply is greater than the third voltage standard value and less than the fourth voltage standard value, the voltage doubling control function is not enabled. The undervoltage fault identification process is as follows: if the bus voltage of the power supply is less than the undervoltage voltage threshold, it is identified as an undervoltage fault in the power supply. The overvoltage fault identification process involves identifying an overvoltage fault in the power supply if the bus voltage exceeds the overvoltage threshold.

[0019] Specifically, in this embodiment, the power supply is controlled to start the voltage multiplier control function based on the comparison results of the power supply bus voltage with the first voltage standard value, the first voltage standard value, the first voltage standard value, and the first voltage standard value. Then, the power supply bus voltage is compared with the undervoltage threshold and the overvoltage threshold to identify whether there is an overvoltage fault or an undervoltage fault, thereby improving the safety of the electrical products during use.

[0020] As a further preferred embodiment, this embodiment also includes: The fault detection identification process involves identifying a voltage detection fault if the bus voltage of the power supply is greater than the second voltage standard value but less than the third voltage standard value.

[0021] Specifically, in this embodiment, if the bus voltage of the power supply is detected to be between the second voltage standard value and the third voltage standard value, it indicates that there is a fault in the relevant voltage acquisition circuit, signal processing circuit, or detection circuit in the power supply, which cannot accurately process the bus voltage of the power supply. The power supply needs to be maintained in time, otherwise it will seriously affect the use of electrical products.

[0022] As a further preferred embodiment, in this embodiment, the setting step also includes setting a standard duration; This embodiment also includes: The detection process is repeated. After completing the undervoltage fault identification step, the overvoltage fault identification step, and the detection fault identification step, a timer is started. After the timer exceeds the standard duration, the undervoltage fault identification step, the overvoltage fault identification step, and the detection fault identification step are repeated. If the detection result remains unchanged, the corresponding fault identification result is output.

[0023] In this embodiment, in order to improve the accuracy of power supply fault detection of electrical equipment, the repeated detection step is specially set. In actual application, after the undervoltage fault identification step, the overvoltage fault identification step, and the detection fault identification step are completed for the first time, the bus voltage of the power supply is detected again after a period of time, and the undervoltage fault identification step, the overvoltage fault identification step, and the detection fault identification step are executed again. If the detection result remains unchanged, it proves that the detection result is accurate, and finally the fault identification result is output.

[0024] This application also discloses a dual-voltage conversion control system for power supplies, the first embodiment of which includes: The setting module is used to set the undervoltage threshold, overvoltage threshold, first voltage standard value, second voltage standard value, third voltage standard value and fourth voltage standard value. The first voltage standard value is less than the second voltage standard value, the second voltage standard value is less than the third voltage standard value and the third voltage standard value is less than the fourth voltage standard value. Voltage detection module, used to detect the bus voltage of the power supply; The voltage multiplier control module is used to enable the voltage multiplier control function if the bus voltage of the power supply is greater than the first voltage standard value and less than the second voltage standard value, and not enable the voltage multiplier control function if the bus voltage of the power supply is greater than the third voltage standard value and less than the fourth voltage standard value. The undervoltage fault identification module is used to identify an undervoltage fault in the power supply if the bus voltage of the power supply is less than the undervoltage voltage threshold. The overvoltage fault identification module is used to identify an overvoltage fault in the power supply if the bus voltage of the power supply is greater than the overvoltage threshold.

[0025] As a further preferred embodiment, this embodiment also includes: The fault detection identification module is used to identify a voltage detection fault if the bus voltage of the power supply is greater than the second voltage standard value and less than the third voltage standard value.

[0026] As a further preferred embodiment, in this example, the setting module is also used to set a standard duration; This embodiment also includes: The repeat detection module is used to start timing after the undervoltage fault identification module, the overvoltage fault identification module, and the detection fault identification module complete their respective operations. After the timing duration exceeds the standard duration, the module controls the undervoltage fault identification module, the overvoltage fault identification module, and the detection fault identification module to repeat their respective operations. If the detection result remains unchanged, the module outputs the corresponding fault identification result.

[0027] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A power supply dual voltage conversion control method, characterized by, Includes the following steps: The setup steps include setting the undervoltage threshold, overvoltage threshold, first voltage standard value, second voltage standard value, third voltage standard value, and fourth voltage standard value. The first voltage standard value is less than the second voltage standard value, the second voltage standard value is less than the third voltage standard value, and the third voltage standard value is less than the fourth voltage standard value. Voltage detection steps: Detect the bus voltage of the power supply; The voltage doubling control procedure is as follows: if the bus voltage of the power supply is greater than the first voltage standard value and less than the second voltage standard value, the voltage doubling control function is enabled; if the bus voltage of the power supply is greater than the third voltage standard value and less than the fourth voltage standard value, the voltage doubling control function is not enabled. The undervoltage fault identification process is as follows: if the bus voltage of the power supply is less than the undervoltage voltage threshold, it is identified as an undervoltage fault in the power supply. The overvoltage fault identification process involves identifying an overvoltage fault in the power supply if the bus voltage exceeds the overvoltage threshold.

2. The power supply dual-voltage conversion control method according to claim 1, characterized in that, Also includes: The fault detection identification process involves identifying a voltage detection fault if the bus voltage of the power supply is greater than the second voltage standard value but less than the third voltage standard value.

3. The power supply dual-voltage conversion control method according to claim 2, characterized in that: The setup steps also include setting a standard duration; Control methods also include: The detection process is repeated. After completing the undervoltage fault identification step, the overvoltage fault identification step, and the detection fault identification step, a timer is started. After the timer exceeds the standard duration, the undervoltage fault identification step, the overvoltage fault identification step, and the detection fault identification step are repeated. If the detection result remains unchanged, the corresponding fault identification result is output.

4. A power supply dual-voltage conversion control system, characterized in that, include: The setting module is used to set the undervoltage threshold, overvoltage threshold, first voltage standard value, second voltage standard value, third voltage standard value and fourth voltage standard value. The first voltage standard value is less than the second voltage standard value, the second voltage standard value is less than the third voltage standard value and the third voltage standard value is less than the fourth voltage standard value. Voltage detection module, used to detect the bus voltage of the power supply; The voltage multiplier control module is used to enable the voltage multiplier control function if the bus voltage of the power supply is greater than the first voltage standard value and less than the second voltage standard value, and not enable the voltage multiplier control function if the bus voltage of the power supply is greater than the third voltage standard value and less than the fourth voltage standard value. The undervoltage fault identification module is used to identify an undervoltage fault in the power supply if the bus voltage of the power supply is less than the undervoltage voltage threshold. The overvoltage fault identification module is used to identify an overvoltage fault in the power supply if the bus voltage of the power supply is greater than the overvoltage threshold.

5. A power supply dual-voltage conversion control system according to claim 4, characterized in that, Also includes: The fault detection identification module is used to identify a voltage detection fault if the bus voltage of the power supply is greater than the second voltage standard value and less than the third voltage standard value.

6. A power supply dual-voltage conversion control system according to claim 5, characterized in that, The settings module is also used to set the standard duration; The control system also includes: The repeat detection module is used to start timing after the undervoltage fault identification module, the overvoltage fault identification module, and the detection fault identification module complete their respective operations. After the timing duration exceeds the standard duration, the module controls the undervoltage fault identification module, the overvoltage fault identification module, and the detection fault identification module to repeat their respective operations. If the detection result remains unchanged, the module outputs the corresponding fault identification result.

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