Power supply protection method and system

Abstract

The invention discloses a power supply protection method, which comprises the following steps of: acquiring a plurality of electric power parameters of a plurality of electric power transmission circuits by a control device, turning off one or more corresponding circuits in the plurality of electric power transmission circuits when one or more of the plurality of electric power parameters are greater than respective corresponding preset values, and turning off the one or more corresponding circuits in the plurality of electric power transmission circuits. And timing the turn-off time when the one or more corresponding circuits are turned off, so as to turn on the one or more corresponding circuits when the turn-off time is equal to or greater than a preset time.

Description

Technical Field

[0001] The present invention relates to a power protection method and system. Background Art

[0002] With the wide application of electronic devices such as desktop computers or laptops and the rapid development of technology, the power supply device can be regarded as the core component of the electronic device. The safety and stability of the power supply device have attracted increasing attention.

[0003] However, traditional power protection mechanisms often fail to respond in real time when facing extreme abnormal conditions such as overvoltage or overcurrent, resulting in problems such as damage to the power supply device and crashing of the electronic device, thereby affecting the user experience and data security. In addition, traditional power protection mechanisms usually cut off the power directly when facing abnormal conditions, and this simple and intuitive method may lead to data loss and device damage, unable to meet the high requirements for the power supply device of modern electronic devices. Summary of the Invention

[0004] In view of the above, the present invention provides a power protection method and system to solve the above problems.

[0005] According to an embodiment of the present invention, a power protection method includes the following steps executed by a control device: obtaining a plurality of power parameters of a plurality of power transmission circuits; when one or more of the plurality of power parameters are greater than their respective preset values, turning off one or more corresponding circuits among the plurality of power transmission circuits; and timing the off time of the one or more corresponding circuits turned off, so as to turn on the one or more corresponding circuits when the off time is equal to or greater than a preset time.

[0006] According to an embodiment of the present invention, when timing the off time of the one or more corresponding circuits turned off, when the off time is equal to or greater than a preset time and the output voltage of one or more conducting circuits among the plurality of power transmission circuits except the one or more corresponding circuits is not less than a preset voltage, turn on the one or more corresponding circuits.

[0007] According to an embodiment of the present invention, the power protection method further includes:

[0008] When the output voltage of the one or more conducting circuits is less than the preset voltage, output a warning notification.

[0009] According to an embodiment of the present invention, after turning off the one or more corresponding circuits among the plurality of power transmission circuits, the method further includes:

[0010] When it is determined that a power sensing value of the power input corresponding to the one or more corresponding circuits is greater than zero, stop timing the off time.

[0011] According to a power protection method of an embodiment of the present invention, when the duration that one or more of these power parameters are greater than their respective corresponding preset values falls within an instantaneous time range, one or more corresponding circuits among the multiple power transmission circuits are turned off, and after turning off one or more corresponding circuits among the multiple power transmission circuits, the method further includes:

[0012] Counting a number of turn-off times; and

[0013] When the number of turn-off times is not less than a preset number of times, turning off the connection between the multiple power transmission circuits and the power supply.

[0014] A power protection system according to an embodiment of the present invention includes: a plurality of power transmission circuits, a power supply detector, and a control device. The plurality of power transmission circuits are used to receive and output power. The power supply detector is connected to the plurality of power transmission circuits and is used to detect a plurality of power parameters of the plurality of power transmission circuits. The control device is connected to the plurality of power transmission circuits and the power supply detector. The control device is used to turn off one or more corresponding circuits among the plurality of power transmission circuits when one or more of the plurality of power parameters are greater than their respective corresponding preset values, and to time the turn-off time of the one or more corresponding circuits being turned off, so as to turn on the one or more corresponding circuits when the turn-off time is equal to or greater than a preset time.

[0015] According to a power protection system of an embodiment of the present invention, when the output voltage of one or more conducting circuits among the plurality of power transmission circuits except the one or more corresponding circuits is not less than a preset voltage, the control device times the turn-off time of the one or more corresponding circuits being turned off, so as to turn on the one or more corresponding circuits when the turn-off time is equal to or greater than a preset time.

[0016] According to a power protection system of an embodiment of the present invention, the control device is further used to output a warning notification when the output voltage of the one or more conducting circuits is less than the preset voltage.

[0017] According to a power protection system of an embodiment of the present invention, after turning off one or more corresponding circuits among the plurality of power transmission circuits, the control device is further used to stop timing the turn-off time when it is determined that a power sensing value of the power input corresponding to the one or more corresponding circuits is greater than zero.

[0018] According to a power supply protection system of an embodiment of the present invention, when the durations of one or more of the power parameters of the one or more corresponding circuits being greater than their respective preset values fall within an instantaneous time range, the control device shuts off one or more of the corresponding circuits among the plurality of power transmission circuits. After shutting off one or more of the corresponding circuits among the plurality of power transmission circuits, the control device is further configured to count a number of shut-offs, and when the number of shut-offs is not less than a preset number, shut off the connection between the plurality of power transmission circuits and the power supply.

[0019] According to a power supply protection system of an embodiment of the present invention, each of the plurality of power transmission circuits includes one or more of a capacitor, a metal oxide semiconductor field effect transistor, and a power factor correction circuit.

[0020] In summary, according to the power supply protection method and system of one or more of the above embodiments, when the power transmission circuit faces abnormal conditions, the power transmission circuit can quickly restore the normal working state of the power supply device, so as to improve the stability, safety, and compatibility of the overall system.

[0021] The above description of the present disclosure and the following description of the embodiments are used to illustrate and explain the spirit and principle of the present invention, and provide a further explanation of the scope of the patent application of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Block diagram of a power supply protection system shown according to an embodiment of the present invention.

[0023] Figure 2 Flowchart of a power supply protection method shown according to an embodiment of the present invention.

[0024] Figure 3 Flowchart of maintaining the output voltage of a power transmission circuit shown according to an embodiment of the present invention.

[0025] Figure 4 Flowchart of real-time monitoring of a power transmission circuit during the restart process shown according to an embodiment of the present invention.

[0026] Figure 5 Protection mechanism for multiple restarts of a power transmission line shown according to an embodiment of the present invention.

[0027] Wherein, reference numerals:

[0028] 1: Power supply protection system

[0029] 11: First power transmission circuit

[0030] 12: Second power transmission circuit

[0031] 13: Power supply detector

[0032] 14: Control device

[0033] A1: Power supply

[0034] S101, S103, S105, S107, S109, S111, S201, S203, S205, S207, S301, S303, S305, S307, S401, S403, S405, S407: Steps Detailed implementation manners

[0035] The detailed features and advantages of the present invention are described in detail in the following implementation manners. The content is sufficient for any person skilled in the art to understand the technical content of the present invention and implement it accordingly. And according to the content disclosed in this specification, the scope of the patent application and the drawings, any person skilled in the art can easily understand the related purposes and advantages of the present invention. The following embodiments further illustrate the viewpoints of the present invention in detail, but do not limit the scope of the present invention in any way.

[0036] The methods and systems described according to one or more of the following embodiments can be used to protect the power transmission circuit in a power supply device. For a more detailed description of the protection method, please first refer to Figure 1 , wherein Figure 1 a block diagram of a power protection system shown according to an embodiment of the present invention. As Figure 1 shown, the power protection system 1 includes a first power transmission circuit 11, a second power transmission circuit 12, a power detector 13, and a control device 14. The first power transmission circuit 11 and the second power transmission circuit 12 are connected to the power supply A1. The power detector 13 is connected to the input line and the output line of the first power transmission circuit 11, and the input line and the output line of the second power transmission circuit 12. The control device 14 is connected to the first power transmission circuit 11, the second power transmission circuit 12, and the power detector 13.

[0037] The first power transmission circuit 11 and the second power transmission circuit 12 are used to receive power from the power source A1 and output power to the connected electronic device accordingly. The power source A1 can be the mains power. For example, the electronic device can be a desktop computer or a laptop. Further, the electronic device can be a graphics card, and the present invention does not limit the type of the electronic device. The first power transmission circuit 11 and the second power transmission circuit 12 can be power components in a power supply device for converting the power provided by the power source A1 into power supplied to the electronic device. For example, the first power transmission circuit 11 and the second power transmission circuit 12 can each include one or more of a capacitor, a metal-oxide-semiconductor field-effect transistor, and a power factor correction (PFC) circuit. The capacitor can be a supercapacitor. Additionally, Figure 1 Two power transmission circuits are exemplarily shown, but the power supply protection system 1 can include more than two power transmission circuits, and the present invention does not limit this.

[0038] The power detector 13 is used to detect the input power received from the power source A1 by the first power transmission circuit 11 and the second power transmission circuit 12 respectively and the output power output to the electronic device to obtain corresponding power parameters. The power detector 13 can include at least one of a voltage sensor and a current sensor, and the power parameters can be voltage values or current values.

[0039] The control device 14 is used to receive the power detection result from the power detector 13 and turn off or turn on the first power transmission circuit 11 and the second power transmission circuit 12 according to the power detection result of the power detector 13. The control device 14 can include one or more processors, and the processors are, for example, a central processing unit, a graphics processing unit, a microcontroller, a programmable logic controller, or other processors with signal processing functions.

[0040] Please refer to Figure 1 and Figure 2 where Figure 2 is a flowchart of a power supply protection method illustrated according to an embodiment of the present invention. As Figure 2As shown, the power protection method includes: Step S101: Obtain power parameters of a plurality of power transmission circuits; Step S103: Determine whether the plurality of power parameters are greater than their respective preset values; When the determination result of Step S103 is "No", execute Step S101 again; When the determination result of Step S103 is "Yes", execute Step S105: Turn off one or more corresponding circuits among the plurality of power transmission circuits; Step S107: Measure the off-time of the one or more corresponding circuits being turned off; Step S109: Determine whether the off-time is equal to or greater than a preset time; When the determination result of Step S109 is "No", execute Step S107; And when the determination result of Step S109 is "Yes", execute Step S111: Turn on the one or more corresponding circuits.

[0041] In Step S101, the control device 14 obtains the power parameter of the first power transmission circuit 11 and the power parameter of the second power transmission circuit 12 from the power detector 13. As described above, the power parameter can be the voltage value or current value of the input power and output power of the first power transmission circuit 11 and the second power transmission circuit 12 respectively.

[0042] In Step S103, the control device 14 determines whether the power parameter of each of the first power transmission circuit 11 and the second power transmission circuit 12 is greater than its respective preset value. For example, when the power transmission circuit is a capacitor, the preset value can be 11.4 volts or 12 volts, and the preset value of other power transmission circuits can also be 11.4 volts or 12 volts, and the preset value can be not greater than 13.5 volts, but the present invention is not limited thereto.

[0043] When the control device 14 determines that the power parameter of the first power transmission circuit 11 is not greater than the corresponding preset value and the power parameter of the second power transmission circuit 12 is not greater than the corresponding preset value, it means that the input power and output power of the first power transmission circuit 11 and the second power transmission circuit 12 are both within the normal range. Therefore, the control device 14 can execute Step S101 again to continue monitoring the first power transmission circuit 11 and the second power transmission circuit 12.

[0044] When the control device 14 determines that the power parameters of one or more of the first power transmission circuit 11 and the second power transmission circuit 12 are greater than the corresponding preset values, it indicates that the input power and / or output power of the power transmission circuit (hereinafter referred to as the corresponding circuit) having the power parameter greater than the corresponding preset value falls outside the normal range. Therefore, the control device 14 executes step S105 to turn off one or more corresponding circuits whose power parameters are greater than the corresponding preset values. For example, the control device 14 can turn off the switch component at the input end of the corresponding circuit and turn off the switch component at the output end of the corresponding circuit, where the switch component can include a relay or a transistor, which is not limited in the present invention. For the sake of illustration, hereinafter, it is assumed that the first power transmission circuit 11 is the corresponding circuit (i.e., the power transmission circuit with a power parameter greater than the preset value), and the second power transmission circuit 12 is not the corresponding circuit (i.e., the power transmission circuit with a power parameter not greater than the preset value).

[0045] In step S107, the control device 14 times the turn-off time of the first power transmission circuit 11. Further, the control device 14 starts timing after turning off the first power transmission circuit 11 to obtain the turn-off time corresponding to the first power transmission circuit 11.

[0046] In step S109, the control device 14 determines whether the turn-off time is equal to or greater than the preset time. The preset time can be the time for reducing the power parameter of the first power transmission circuit 11 to the preset value, and / or the time for reducing the temperature value of the first power transmission circuit 11 to the preset temperature. The preset time is, for example, 20 milliseconds, but the present invention is not limited thereto.

[0047] When the control device 14 determines that the turn-off time is less than the preset time, the control device 14 can execute step S107 again, that is, continue to time the turn-off time. When the control device 14 determines that the turn-off time is equal to or greater than the preset time, the control device 14 turns on the first power transmission circuit 11. In other words, when the turn-off time is equal to or greater than the preset time, it indicates that the power parameter of the first power transmission circuit 11 may have been reduced to the preset value, and / or the temperature value of the first power transmission circuit 11 has been reduced to the preset temperature. Therefore, the control device 14 turns on the first power transmission circuit 11 so that the first power transmission circuit 11 can receive power from the power supply A1 again and output power to the electronic device.

[0048] Accordingly, the power protection method and system according to one or more of the above embodiments can enable the power transmission circuit to quickly restore the normal working state of the power supply device when the power transmission circuit faces abnormal conditions, so as to improve the stability, safety and compatibility of the overall system.

[0049] Please refer to Figure 1 and Figure 3 where Figure 3Flowchart of maintaining the output voltage of a power transmission circuit according to an embodiment of the present invention. Figure 3 The illustrated step S203 can be executed Figure 2 after the judgment result of step S103 in Figure 3 is "yes" and before step S105. As Figure 2 shown, maintaining the output voltage of the power transmission circuit includes: step S201: determining whether a power parameter is greater than a preset value; step S203: determining whether the output voltage of the conduction circuit is not less than a preset voltage; when the judgment result of step S203 is "yes", execute step S205: timing the off time when the corresponding circuit is turned off; and when the judgment result of step S203 is "no", execute step S207: outputting a warning notification. Step S201 can be regarded as Figure 2 the case where the judgment result of step S103 in

[0050] is "yes", and step S205 can be the same as step S107 in

[0051] Figure 2

[0052]

[0053] Figure 3

[0054] Through Figure 3 the embodiment of

[0054] Please also refer to Figure 1 and Figure 4,in Figure 4 A flowchart of real-time monitoring of a power transmission circuit during a restart process is shown according to an embodiment of the present invention. Figure 4 As shown, the real-time monitoring performed during the restart process includes: step S301: shutting down the one or more corresponding circuits in the power transmission circuit; step S303: judging whether the power sensing value of the power input corresponding to the one or more corresponding circuits is greater than zero; when the judgment result of step S303 is "yes", executing step S305: stopping timing the shutdown time; and when the judgment result of step S303 is "no", executing step S307: timing the shutdown time when the corresponding circuit is shut down. Step S301 can be combined with Figure 2 The same as step S105, step S307 can be Figure 2 The process is the same as step S107, so it will not be described here in detail.

[0055] In step S303 , the control device 14 may receive the sensing result of the power detector 13 on the output terminal of the first power transmission circuit 11 (corresponding circuit) to determine whether the power sensing value of the first power transmission circuit 11 is greater than zero.

[0056] When the power sensing value of the first power transmission circuit 11 is greater than zero, it means that even after being turned off, power still flows out of the first power transmission circuit 11. Therefore, in step S305, the control device stops timing the turn-off time to terminate the restart procedure.

[0057] When the power sensing value of the first power transmission circuit 11 is not greater than zero (ie equal to zero), it indicates that no power flows out of the first power transmission circuit 11 after being turned off. Therefore, the control device 14 may execute step S307 to continue timing the turn-off time.

[0058] pass Figure 4 The embodiment can ensure that continuous power input / output can be avoided during the execution of the restart procedure, thereby preventing the power transmission circuit from causing more serious damage.

[0059] Please refer to Figure 1 and Figure 5 ,in Figure 5 According to an embodiment of the present invention, a protection mechanism for multiple restarts of a power transmission line is illustrated. It should be noted that Figure 5 In the embodiment of the present invention, the corresponding circuit can be turned off when the power parameter of the one or more corresponding circuits is greater than the corresponding preset value for a duration falling within the instantaneous time range, and the power parameter mentioned here can refer to the power parameter of the output end of the corresponding circuit, wherein the instantaneous time range is, for example, 1 millisecond, but the present invention is not limited thereto. In other words, the control device 14 can turn off the corresponding circuit when the power parameter of the output end of the corresponding circuit indicates a surge condition.

[0060] As Figure 5 shown, the protection mechanism may include: Step S401: Shut down the one or more corresponding circuits in the power transmission circuit; Step S403: Count the number of shutdowns; Step S405: Determine whether the number of shutdowns is not less than a preset number; when the determination result of Step S405 is "yes", execute Step S407: Shut down the connection between the power transmission circuit and the power supply; and when the determination result of Step S405 is "no", execute Step S409: Obtain the power parameters of the power transmission circuit. Step S401 may be the same as Figure 2 Step S105 of Figure 2 , and Step S409 may be the same as Step S101 of

[0061] , so details are not described herein.

[0062] After shutting down the first power transmission circuit 11, in Step S403, the control device 14 increments the number of shutdowns by 1. Specifically, the initial value of the number of shutdowns may be 0, and the control device 14 may reset the number of shutdowns every preset period, where the preset period may be 10 minutes, 1 hour, one day, etc., and the present invention is not limited thereto. In other words, the number of shutdowns used to execute Step S405 may be the accumulated number of shutdowns during the preset period. Moreover, the control device 14 may increment the number of shutdowns when determining that the power parameter of at least one of the first power transmission circuit 11 and the second power transmission circuit 12 is greater than a preset value.

[0063] In Step S405, the control device 14 determines whether the number of shutdowns is not less than a preset number, where the preset number is, for example, 5 times, but the present invention is not limited thereto. When the control device 14 determines that the number of shutdowns is not less than the preset number, it indicates that after multiple restart operations, the first power transmission circuit 11 may be damaged, resulting in the power parameter of the first power transmission circuit 11 remaining unstable after multiple restarts. Therefore, in Step S407, the control device 14 shuts down the connection between the power supply A1 and the first power transmission circuit 11 and the second power transmission circuit 12. In other words, the control device 14 shuts down the connection between the power supply A1 and all power transmission circuits to ensure that the electronic device is not damaged due to problems with the power supply device.

[0063] When the control device 14 determines that the number of shutdowns is less than the preset number, the control device 14 may continue to monitor the power parameters of the first power transmission circuit 11 and the second power transmission circuit 12, that is, execute Step S101 of Figure 1 again.

[0064] In summary, the power protection method and system according to one or more of the above embodiments can enable the power transmission circuit to quickly resume the normal operating state of the power supply device when the power transmission circuit faces abnormal conditions, so as to improve the stability, safety and compatibility of the overall system. By maintaining the mechanism of the output voltage of the power transmission circuit, it can be ensured that when one or more power transmission circuits in the power supply device are turned off, the operation of the electronic device will not be interrupted accordingly. By the mechanism of real-time monitoring of the power transmission circuit during the restart process, it can be ensured that continuous power input / output can be avoided during the execution of the restart program, thus causing more serious damage to the power transmission circuit. Moreover, by the mechanism of directly cutting off the connection between the power transmission circuit and the power supply when the number of turn-off times is too high, it can be ensured that the electronic device will not be damaged due to problems with the power supply device.

[0065] Although the present invention has been disclosed as above in the foregoing embodiments, it is not intended to limit the present invention. Any modifications and refinements made without departing from the spirit and scope of the present invention fall within the scope of patent protection of the present invention. For the scope of protection defined by the present invention, please refer to the appended patent application scope.

Claims

1. A power protection method, characterized in that, Including performing by a control device: Obtaining a plurality of power parameters of a plurality of power transmission circuits; When one or more of the plurality of power parameters are greater than their respective corresponding preset values, turning off one or more corresponding circuits among the plurality of power transmission circuits; And Timing a turn-off time during which the one or more corresponding circuits are turned off, and when the turn-off time is equal to or greater than a preset time, turning on the one or more corresponding circuits.

2. The power supply protection method according to claim 1, wherein Timing the turn-off time during which the one or more corresponding circuits are turned off, and when the turn-off time is equal to or greater than a preset time and the output voltage of one or more conducting circuits among the plurality of power transmission circuits other than the one or more corresponding circuits is not less than a preset voltage, turning on the one or more corresponding circuits.

3. The power supply protection method according to claim 2, characterized in that, It further includes: When the output voltage of the one or more conducting circuits is less than the preset voltage, outputting a warning notification.

4. The power supply protection method according to claim 1, wherein After turning off the one or more corresponding circuits among the plurality of power transmission circuits, the method further includes: When it is determined that a power sensing value of the power input corresponding to the one or more corresponding circuits is greater than zero, stopping the timing of the turn-off time.

5. The power supply protection method according to claim 1, wherein When the duration during which one or more of the power parameters are greater than their respective corresponding preset values falls within an instantaneous time range, turning off the one or more corresponding circuits among the plurality of power transmission circuits, and after turning off the one or more corresponding circuits among the plurality of power transmission circuits, the method further includes: Counting a turn-off number; and When the turn-off number is not less than a preset number, turning off the connection between the power transmission circuits and the power supply.

6. A power protection system, characterized in that, Including: A plurality of power transmission circuits for receiving and outputting power; A power detector connected to the plurality of power transmission circuits for detecting a plurality of power parameters of the power transmission circuits; And A control device connected to the plurality of power transmission circuits and the power detector, the control device being configured to turn off one or more corresponding circuits among the plurality of power transmission circuits when one or more of the plurality of power parameters are greater than their respective corresponding preset values, and to time a turn-off time during which the one or more corresponding circuits are turned off, and when the turn-off time is equal to or greater than a preset time, turn on the one or more corresponding circuits.

7. The power supply protection system according to claim 6, characterized in that, The control device times the turn-off time during which the one or more corresponding circuits are turned off, and when the turn-off time is equal to or greater than a preset time and the output voltage of one or more conducting circuits among the plurality of power transmission circuits other than the one or more corresponding circuits is not less than a preset voltage, turns on the one or more corresponding circuits.

8. The power protection system according to claim 7, wherein The control device is further configured to output a warning notification when the output voltage of the one or more conducting circuits is less than the preset voltage.

9. The power supply protection system according to claim 6, wherein, After turning off the one or more corresponding circuits among the plurality of power transmission circuits, the control device is further configured to stop the timing of the turn-off time when it is determined that a power sensing value of the power input corresponding to the one or more corresponding circuits is greater than zero.

10. The power supply protection system according to claim 6, characterized in that, When the duration of one or more of the power parameters of the one or more corresponding circuits being greater than their respective preset values falls within an instantaneous time range, the control device shuts off one or more of the corresponding circuits among the plurality of power transmission circuits. After shutting off one or more of the corresponding circuits among the plurality of power transmission circuits, the control device is further configured to count a number of shutdowns, and when the number of shutdowns is not less than a preset number, shut off the connection between the plurality of power transmission circuits and the power supply.

11. The power supply protection system according to claim 6, wherein Each of the plurality of power transmission circuits includes one or more of a capacitor, a metal oxide semiconductor field effect transistor, and a power factor correction circuit.

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