Power supply circuit system, activation method thereof and storage medium

Abstract

The invention provides a power supply circuit system, an activation method thereof and a storage medium. The activation method comprises the following steps: in response to a detected control guide signal, acquiring a duty ratio of the control guide signal; judging whether the duty ratio of the control guide signal reaches a first threshold value or not; activating a charging communication controller in response to the duty cycle reaching a first threshold; responding to the condition that the duty ratio does not reach the first threshold value, the pulse width of the control guide signal is at least increased to a second threshold value, and the second threshold value is the minimum value of the pulse signal which can be recognized by a level detection circuit of the charging communication controller; and activating the charging communication controller in response to detecting the control pilot signal of which the pulse width is the second threshold value. According to the invention, the energy consumption and complexity required for activating the charging communication controller can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of circuit systems for power supply or power distribution, and particularly to a power supply circuit system, its activation method, and a storage medium. Background Art

[0002] A charging communication controller, also known as an Electric Vehicle Communication Controller (EVCC), is the core control module of an electric vehicle charging system. As the "translation hub" of the electric vehicle charging system, it realizes the conversion between different charging protocols through protocol conversion and hardware adaptation, thus promoting the cross-border application of new energy vehicles. Usually, the charging communication controller enters a low-power mode in the non-working state to reduce energy consumption.

[0003] In the prior art, there are mainly two ways to activate the charging communication controller (i.e., switch from the non-working state to the working state or the charging state): First, activation is achieved through an external control signal, which requires continuous monitoring to determine the activation timing, resulting in high energy consumption and complexity; Second, continuously monitor the Control Pilot Function (CP) signal, that is, within a certain period, it is necessary to continuously monitor that the control pilot signal has been at a high level (i.e., the effective state) to activate the charging communication controller. Continuously being at a high level also has problems of high energy consumption and high monitoring complexity. Summary of the Invention

[0004] In view of this, this application provides a power supply circuit system, its activation method, and a storage medium, which can improve the problems of high energy consumption and high complexity in activating the charging communication controller.

[0005] An activation method for a power supply circuit system provided by this application, the power supply circuit system includes a charging communication controller, and the activation method includes: In response to detecting a control pilot signal, obtain the duty cycle of the control pilot signal; Judge whether the duty cycle of the control pilot signal reaches a first threshold; In response to the duty cycle reaching the first threshold, activate the charging communication controller; In response to the duty cycle not reaching the first threshold, increase the pulse width of the control pilot signal to at least a second threshold, where the second threshold is the minimum value of the pulse signal that can be recognized by the level detection circuit of the charging communication controller; and, In response to detecting a control pilot signal with a pulse width of the second threshold, activate the charging communication controller.

[0006] Optionally, the step of increasing the pulse width of the control pilot signal to at least a second threshold value includes: Doubling the pulse width of the control pilot signal as the second threshold value; Or, Presetting a correspondence between the duty cycle and the multiple of the increased pulse width; Determining the multiple corresponding to the duty cycle of the control pilot signal according to the correspondence; Taking the product of the pulse width of the control pilot signal and the determined multiple as the second threshold value.

[0007] Optionally, after the duty cycle reaches the first threshold value, the activation method further includes: Detecting and obtaining the voltage change value of the proximity detection line of the charging communication controller; Judging whether the voltage change value of the proximity detection line reaches a third threshold value; When the voltage change value reaches the third threshold value, performing the step of activating the charging communication controller.

[0008] Optionally, after detecting the control pilot signal with the pulse width being the second threshold value, the activation method further includes: Detecting and obtaining the voltage change value of the proximity detection line of the charging communication controller; Judging whether the voltage change value of the proximity detection line reaches a third threshold value; When the voltage change value reaches the third threshold value, performing the step of activating the charging communication controller.

[0009] Optionally, the step of detecting and obtaining the voltage change value of the proximity detection line of the charging communication controller includes: Regulating the voltage of the proximity detection line to a first voltage; Connecting a comparator between the proximity detection line and the level detection circuit, and continuously applying the first voltage to the comparator; Detecting and obtaining the current second voltage of the proximity detection line through the comparator; Obtaining the difference between the first voltage and the second voltage through the comparator, and taking the difference as the voltage change value of the proximity detection line.

[0010] A power supply circuit system provided by the present application includes: A control pilot line for outputting a control pilot signal; A charging communication controller provided with a level detection circuit; A delay spread circuit connected between the control pilot line and the level detection circuit; Between the time delay extension circuit and the charging communication controller, the charging communication controller is activated by the method described in any one of the above.

[0011] Optionally, the power supply circuit system further includes a ground wire, the ground wire and the control lead wire are respectively connected to the level detection circuit to form a closed loop, the time delay extension circuit includes a capacitor, one electrode of the capacitor is connected to the control lead wire, and the other electrode is connected to the ground wire.

[0012] Optionally, the time delay extension circuit further includes a voltage dividing module, the voltage dividing module is connected between the control lead wire and the capacitor to adjust the voltage of the control guiding signal to the adaptive voltage of the capacitor.

[0013] Optionally, the voltage dividing module includes a first resistor and a second resistor, the first resistor is connected in series with the control lead wire, and the second resistor is connected in parallel with the capacitor between the ground wire and the control lead wire.

[0014] A storage medium provided by the present application stores an activation program, and when the activation program is executed by a processor, the steps of the activation method described in any one of the above are implemented.

[0015] As described above, the present application can activate the charging communication controller only according to the control guiding signal without an external control signal. Moreover, for the control guiding signal with low power consumption, that is, when the duty cycle of the control guiding signal is low, the time delay of the control guiding signal can also be extended, and the pulse width of the control guiding signal can be increased so that it can be recognized by the level detection circuit of the charging communication controller. Therefore, the present application can reduce the energy consumption and complexity required to activate the charging communication controller. Description of the Drawings

[0016] Figure 1 is a schematic flow chart of the activation method of the first power supply circuit system according to an embodiment of the present application; Figure 2 is an equivalent schematic diagram of a power supply circuit system provided by an embodiment of the present application; Figure 3 is a schematic flow chart of a method for increasing the pulse width to a second threshold according to the present application; Figure 4 is a schematic flow chart of the activation method of the second power supply circuit system according to an embodiment of the present application; Figure 5 is an equivalent schematic diagram of another power supply circuit system provided by an embodiment of the present application; Figure 6 is a schematic flow chart of the activation method of the third power supply circuit system according to an embodiment of the present application. Detailed implementation manners

[0017] To solve the above problems existing in the prior art, the present application provides a power supply circuit system, an activation method thereof, and a storage medium. These several protection themes are based on the same concept, and the principles of solving problems are basically the same or similar. The implementation manners of each protection theme can be referred to each other, and the repeated parts will not be elaborated.

[0018] In the embodiment solution of the present application, without an external control signal, the charging communication controller can be activated only according to a control pilot signal. Moreover, for a control pilot signal with low power consumption, that is, when the duty cycle of the control pilot signal is relatively low, the control pilot signal can be subjected to time delay extension to increase the pulse width of the control pilot signal so that it can be recognized by the level detection circuit of the charging communication controller, thereby reducing the energy consumption and complexity required to activate the charging communication controller.

[0019] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions of the present application will be clearly described below in conjunction with specific embodiments and corresponding drawings. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. Without conflict, the following various embodiments and their technical features can be combined with each other, and they also belong to the technical solutions of the present application.

[0020] Figure 1 is a schematic flowchart of an activation method for a power supply circuit system according to an embodiment of the present application. The activation method of the power supply circuit system can also be simply referred to as the "activation method" or "method" for short. The execution subject of each step can be a suitable activation device or a power supply circuit system, etc. Specifically, which structural device in the activation device or the power supply circuit system executes it depends adaptively.

[0021] As Figure 1 shown, the activation method at least includes the following steps: S1: In response to detecting a control pilot signal, obtain the duty cycle of the control pilot signal; S2: Determine whether the duty cycle of the control pilot signal reaches a first threshold; If the duty cycle reaches the first threshold, execute step S4: Activate the charging communication controller; If the duty cycle does not reach the first threshold, execute step S3: Increase the pulse width of the control pilot signal to at least a second threshold, where the second threshold is the minimum value of the pulse signal that can be recognized by the level detection circuit of the charging communication controller; and, in response to detecting a control pilot signal with a pulse width of the second threshold, execute the step S4: Activate the charging communication controller.

[0022] Combined with Figure 2As shown, the power supply circuit system 100 includes a charging communication controller (i.e., the commonly referred to EVCC) 1, a control pilot wire 2, and a ground wire (also known as a protective earthing wire, abbreviated as PE) 3. The charging communication controller 1 is provided with a level detection circuit 10.

[0023] The control pilot wire 2 generates a control pilot signal, and this control pilot signal appears as a pulse signal. Its duty cycle represents the proportion of the energized time relative to the total time within a pulse cycle and can be regarded as the proportion of the effective state. The larger the duty cycle, the higher the proportion of the effective state, and the easier it is to detect the signal segment used to activate the charging communication controller 1; conversely, the smaller the duty cycle, the lower the proportion of the effective state, and the more difficult it is to detect the signal segment used to activate the charging communication controller 1.

[0024] Taking the power supply circuit system 100 applied to a charging pile with a charging gun as an example, the control pilot wire 2 is a CP wire, and the control pilot signal is the CP signal, which is mainly used to monitor the interaction between the electric vehicle and the charging pile; according to the current IEC61851 charging standard, the charging process is mainly divided into three stages: in the first stage when the charging gun is not currently connected to the electric vehicle, the control pilot signal remains at 12V continuously; in the second stage when the charging gun is connected to the electric vehicle, the voltage drops due to the presence of a voltage-dividing resistor in the on-board charger, so the control pilot signal jumps to 9V; in the third stage, after the electric vehicle confirms the charging signal, it will switch the voltage-dividing resistor in the on-board charger, causing the control pilot signal to jump to 6V, and the main relay of the charging pile can be closed to activate the charging communication controller 1 and start charging the electric vehicle. In any stage, the control pilot signal needs to continuously be at a high level (i.e., the effective state), which results in a relatively high power consumption regardless of which stage the charging communication controller 1 is activated. In an actual scenario, in the second stage when the control pilot signal jumps from 12V to 9V, the charging communication controller 1 can be activated.

[0025] In this application, for the control pilot signal with lower power consumption in this second stage, that is, when the duty cycle of the control pilot signal is relatively low, the pulse width of the control pilot signal can be increased, which is equivalent to performing a time-delay extension process on the control pilot signal, so that it can be recognized by the level detection circuit 10 of the charging communication controller 1, thereby achieving the activation of the charging communication controller 1 under low power consumption and low complexity conditions.

[0026] In addition, in this application, only based on the control pilot signal, without the need for an external control signal, the charging communication controller 1 can be activated, and there is no need for continuous monitoring to determine the activation timing, thus reducing the energy consumption and complexity required to activate the charging communication controller 1.

[0027] The specific value of the first threshold can be adaptively determined according to actual requirements. For example, it can be determined according to the recognition ability of the level detection circuit 10 of the charging communication controller 1.

[0028] In one example, the first threshold can be any percentage value greater than 5%.

[0029] The pulse width is the absolute time of the effective state, or the duration of the high level corresponding to the effective state. Step S3 increases the pulse width of the control pilot signal, which is equivalent to performing a time delay extension process on the control pilot signal, and can increase the time of the effective state, making it easier to detect.

[0030] Taking the example that the duty cycle of the control pilot signal detected is 5%, the pulse width corresponding to this duty cycle is 50 μs. Step S3 can increase the pulse width of 50 μs to 100 μs so that the level detection circuit 10 of the charging communication controller 1 can monitor it, thereby triggering the execution of step S4.

[0031] In one example, the present application can directly double the pulse width of the control pilot signal as the second threshold. According to research and multiple verification results, the pulse width after directly doubling can be accurately recognized by the current various types of level detection circuits 10.

[0032] In another example, as Figure 3 shown, the method for obtaining the second threshold in step S3 includes the following steps: S311: Preset the corresponding relationship between the duty cycle and the multiple of increasing the pulse width; S312: Determine the multiple corresponding to the duty cycle of the control pilot signal according to the corresponding relationship; S313: Take the product of the pulse width of the control pilot signal and the determined multiple as the second threshold.

[0033] That is to say, the present application can preset the corresponding multiple of increasing the pulse width for different duty cycles. For example, the corresponding relationship between the duty cycle and the multiple can be a negative correlation, that is, the larger the duty cycle, the smaller the corresponding determined multiple, and the smaller the duty cycle, the larger the corresponding determined multiple.

[0034] Figure 4 is a schematic flowchart of the activation method of the second power supply circuit system of the embodiment of the present application. For steps with the same content and components with the same name, the present application uses the same reference numerals for identification. Combining Figure 4 shown, the activation method of this example includes the following steps: S1: In response to detecting the control pilot signal, obtain the duty cycle of the control pilot signal; S2: Determine whether the duty cycle of the control pilot signal reaches a first threshold; If the duty cycle does not reach the first threshold, then execute step S3: Increase the pulse width of the control pilot signal to at least a second threshold, where the second threshold is the minimum value that the level detection circuit of the charging communication controller can recognize for a pulse signal; and, in response to detecting a control pilot signal with a pulse width of the second threshold, execute the said step S4: Activate the charging communication controller.

[0035] If the duty cycle reaches the first threshold, then execute step S41: Detect and obtain the voltage change value of the proximity detection line of the charging communication controller; and, Execute step S42: Determine whether the voltage change value of the proximity detection line reaches a third threshold; If it reaches the third threshold, then execute step S4: Activate the charging communication controller.

[0036] If it does not reach the third threshold, indicating that the activation result determined based on the control pilot signal is inaccurate, then the charging communication controller may not be activated, and continue to execute steps S1 and S2.

[0037] Combined with Figure 5 As shown, the power supply circuit system 100 of the present application may further include a proximity detection line 4. During the power supply process of the power supply circuit system 100, still taking the charging process of the current IEC 61851 charging standard as an example, the proximity detection line 4 is the proximity pilot (PP) line, and one of its functions is to ensure reliable hardware connection before charging by detecting the physical contact state of the charging plug of the charging gun and the vehicle charging port, such as in a disconnected, semi-connected, or fully connected state.

[0038] Compared with Figure 1 the method shown, in this example, when the duty cycle of the control pilot signal reaches the first threshold, the charging communication controller is not directly activated, but another dimension is further introduced for re - judgment. On the basis of achieving the beneficial effects of the method shown in Figure 1 this example can further ensure the accuracy of the judgment on whether to activate. Specifically, this example uses the voltage change of the proximity detection line (i.e., the PP line) 4 as one of the judgment factors for whether to activate the charging communication controller 1. In the second stage of the charging process, monitor whether the voltage change value of the PP line 4 reaches the third threshold, and thus decide whether to execute the aforementioned step S4 according to the judgment result. The specific value of the third threshold can be adaptively determined according to actual needs, for example, it can be referred to the voltage - dividing resistor in the on - vehicle charger.

[0039] In one example, the method of detecting and obtaining the voltage change value of the proximity detection line, that is, the said step S41, may include the following steps: S411. Stabilize the proximity detection line at a first voltage; S412. Connect a comparator between the proximity detection line and the level detection circuit, and continuously apply the first voltage to the comparator; S413. Detect and obtain the current second voltage of the proximity detection line through the comparator; S414. Obtain the difference between the first voltage and the second voltage through the comparator, and use the difference as the voltage change value of the proximity detection line.

[0040] Continue to refer to Figure 5 , the power supply circuit system 100 can connect a voltage regulator 40, such as an LDO (low dropout regulator), to the PP line 4. Connect the voltage regulator 40 through the first power supply 51 and apply the first voltage to the voltage regulator 40, so as to stabilize the PP line 4 at the first voltage. For example, the first voltage can be 5V; connect a comparator 41 between the voltage regulator 40 and the level detection circuit 10. One input terminal of the comparator 41 is connected to the second power supply 52, and the other input terminal is connected to the PP line 4 to obtain the current second voltage of the PP line 4. Apply the first voltage to the comparator 41 through the second power supply 52. Among them, the second power supply 52 and the first power supply 51 can be the same power supply, such as the common power supply battery in the comparator 41; the comparator 41 compares the voltage values of the two input terminals, and uses the difference between the first voltage and the second voltage as the voltage change value of the PP line 4. When the voltage change value reaches the third threshold, it means that the level detection circuit 10 monitors that the voltage on the PP line 4 has changed greatly, and it can be considered that the charging gun has been successfully connected to the electric vehicle. At this time, the charging communication controller 1 can be activated.

[0041] Figure 6 is a schematic flowchart of the activation method of the third power supply circuit system according to the embodiment of the present application. Combining Figure 6 as shown, the activation method of this example includes the following steps: S1: In response to detecting the control pilot signal, obtain the duty cycle of the control pilot signal; S2: Determine whether the duty cycle of the control pilot signal reaches a first threshold; If the duty cycle reaches the first threshold, execute step S4: Activate the charging communication controller; If the duty cycle does not reach the first threshold, then step S3 is executed: the pulse width of the control pilot signal is increased to at least a second threshold, where the second threshold is the minimum value of the pulse signal that can be recognized by the level detection circuit of the charging communication controller; and, in response to detecting a control pilot signal with a pulse width of the second threshold, step S321 is executed: detecting and obtaining the voltage change value of the proximity detection line of the charging communication controller; and, step S322 is executed: determining whether the voltage change value of the proximity detection line reaches a third threshold; If the third threshold is reached, then step S4 is executed: activating the charging communication controller.

[0042] If the third threshold is not reached, indicating that the activation result determined based on the control pilot signal is inaccurate, the charging communication controller may not be activated, and steps S1 and S2 are continued to be executed.

[0043] Based on the foregoing Figure 4 On the basis of the description of the method, the difference is that in this example, after increasing the pulse width of the control pilot signal to the second threshold, the charging communication controller is not directly activated, but further uses the voltage change of the proximity detection line as one of the judgment factors for whether to activate the charging communication controller. Therefore, this example can also further ensure the accuracy of the judgment on whether to activate.

[0044] It should be understood that using the voltage change of the proximity detection line as one of the judgment factors for whether to activate the charging communication controller can be applied both after the duty cycle of the control pilot signal reaches the first threshold and before activating the charging communication controller, and can also be applied simultaneously after increasing the pulse width of the control pilot signal to at least the second threshold and before activating the charging communication controller, which will not be elaborated here.

[0045] The embodiment of the present application also provides a power supply circuit system. As Figure 2 shown, the power supply circuit system 100 includes a charging communication controller 1, a control pilot line 2, a ground line 3, and a delay extension circuit 6.

[0046] The charging communication controller 1 is provided with a level detection circuit 10.

[0047] The control pilot line 2 is used to output a control pilot signal.

[0048] The delay extension circuit 6 is connected between the control pilot line 2 and the level detection circuit 10.

[0049] The ground line 3, also known as the Protective Earthing (abbreviated as PE), and the control pilot line 2 are respectively connected to the level detection circuit 10 to form a closed loop.

[0050] Between the delay spread circuit 6 and the charging communication controller 1, the charging communication controller 1 is activated by the method of any of the above examples. Therefore, the steps in the activation method of the power supply circuit system of any embodiment provided in this application can be executed, and the beneficial effects achievable by the activation method of any of the foregoing embodiments can be realized. For details, refer to the foregoing embodiments and will not be elaborated here.

[0051] In one example, the delay spread circuit 6 includes a capacitor 61. One electrode of the capacitor 61 is connected to the control pilot line 2, and the other electrode is connected to the ground line 3. When the control pilot line 2 transmits a control pilot signal, the capacitor 61 will be charged or discharged, and there will be a certain time delay in this charging or discharging process, so as to perform delay spread processing on the control pilot signal, thereby increasing the pulse width of the control pilot signal to at least the second threshold. In this example, the pulse width of the control pilot signal can be increased only by one capacitor 61, and the circuit structure is simple and easy to implement.

[0052] In one example, as Figure 2 shown, the delay spread circuit 6 further includes a voltage dividing module, and the voltage dividing module is connected between the control pilot line 2 and the capacitor 61 to adjust the voltage of the control pilot signal to the adaptive voltage of the capacitor 61. For example, the voltage dividing module includes a first resistor 62 and a second resistor 63. The first resistor 62 is connected in series with the control pilot line 2, and the second resistor 63 is connected in parallel with the capacitor 61 between the ground line 3 and the control pilot line 2. The circuit structure of the voltage dividing module is simple and easy to implement, and on the path where the control pilot signal is transmitted to the capacitor 61, the first resistor 62 and the capacitor 61 can be regarded as connected in series, so as to form an RC (Resistor-Capacitor) delay circuit, and the control pilot signal can also be subjected to delay spread processing.

[0053] It should be understood that the power supply circuit system 100 may further include other electronic components. For example, the power supply circuit system 100 may further include Figure 2 shown diode 7, whose positive electrode is connected to the input end of the control pilot line 2 and the negative electrode is connected to the delay spread circuit 6. Specifically, its negative electrode may be connected to the first resistor 62, so that the control pilot signal can only be transmitted in the forward direction, playing a role in stabilizing the voltage. Also for example, the power supply circuit system 100 may further include PP line 4, voltage regulator 40, comparator 41, first power supply 51 and second power supply 52 as Figure 5 shown. The connection manners between these electronic components can be referred to the method embodiments above and will not be elaborated here.

[0054] An embodiment of the present application further provides a storage medium, on which an activation program for a power supply circuit system is stored. This activation program is essentially a computer program. When this activation program is executed by a processor, the steps of the activation method of the power supply circuit system in any example are implemented.

[0055] The storage medium includes, but is not limited to, any one of a read-only memory (ROM), a random access memory (RAM), a magnetic disk, and an optical disc.

[0056] Since the program stored in this storage medium can execute the steps in the activation method of the power supply circuit system in any embodiment provided by the present application, the beneficial effects achievable by the activation method in any of the foregoing embodiments can be realized. For details, see the foregoing embodiments and will not be elaborated here.

[0057] An embodiment of the present application further provides an activation device or chip, including a memory and a processor. An activation program for a power supply circuit system is stored on the memory. When this activation program is executed by the processor, the steps of the activation method of the power supply circuit system in any of the foregoing embodiments are implemented; and / or, the activation device or chip is provided with the storage medium as in the above example, and the processor loads this storage medium to execute the steps of the activation method, thereby realizing the beneficial effects achievable by the corresponding example of the activation method.

[0058] The above are only some embodiments of the present application and do not limit the patent scope of the present application. For those of ordinary skill in the art, any equivalent structural transformation made using the content of this specification and the drawings is equally included in the patent protection scope of the present application.

[0059] In this article, step codes such as S1 and S2 are used. The purpose is to more clearly and briefly express the corresponding content and do not constitute a substantial limitation in order. Those skilled in the art may execute S3 first and then S1 in specific implementations, etc., but these should all be within the protection scope of the present application.

[0060] Although terms such as "first" and "second" are used in this article to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. In addition, the singular forms "a", "an", and "the" are also intended to include the plural forms. The terms "or" and "and / or" are interpreted inclusively, or mean any one or any combination. An exception to this definition only occurs when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

Claims

1. A method for activating a power supply circuit system, the power supply circuit system comprising a charging communication controller, characterized in that: The activation method includes: In response to detecting a control pilot signal, acquiring a duty cycle of the control pilot signal; Determining whether the duty cycle of the control pilot signal reaches a first threshold; activating the charging communication controller in response to the duty cycle reaching a first threshold; In response to the duty cycle not reaching the first threshold, increasing the pulse width of the control pilot signal to at least a second threshold, the second threshold being a minimum value of the pulse signal that can be recognized by the level detection circuit of the charging communication controller; and In response to detecting the control pilot signal having a pulse width equal to the second threshold, the charging communication controller is activated.

2. The activation method according to claim 1, characterized in that: The step of increasing the pulse width of the control pilot signal to at least a second threshold value comprises: Increasing the pulse width of the control pilot signal by two times to serve as a second threshold; or, Presetting the corresponding relationship between the duty cycle and the multiple of increasing the pulse width; According to the corresponding relationship, determining a multiple corresponding to the duty cycle of the control guidance signal; The product of the pulse width of the control pilot signal and the determined multiple is used as the second threshold.

3. The activation method according to claim 1, characterized in that: In response to the duty cycle reaching a first threshold, the activation method further includes: Detecting and obtaining a voltage change value of a proximity detection line of the charging communication controller; Determining whether the voltage change value of the proximity detection line reaches a third threshold; When the voltage change value reaches a third threshold, the step of activating the charging communication controller is performed.

4. The activation method according to claim 1, characterized in that: After the control guidance signal having a pulse width of the second threshold is detected in response, the activation method further comprises: Detecting and obtaining a voltage change value of a proximity detection line of the charging communication controller; Determining whether the voltage change value of the proximity detection line reaches a third threshold; When the voltage change value reaches a third threshold, the step of activating the charging communication controller is performed.

5. The activation method according to claim 3 or 4, characterized in that: The detecting and obtaining a voltage change value of a proximity detection line of the charging communication controller includes: stabilizing the proximity detection line at a first voltage; connecting a comparator between the proximity detection line and the level detection circuit, and continuously applying the first voltage to the comparator; Acquire a current second voltage of the proximity detection line by detecting with the comparator; The difference between the first voltage and the second voltage is obtained by the comparator, and the difference is used as the voltage change value of the proximity detection line.

6. A power supply circuit system, characterized in that: include: A control guide line, used for outputting a control guide signal; A charging communication controller is provided with a level detection circuit; A delay extension circuit connected between the control guide line and the level detection circuit; Between the delay extension circuit and the charging communication controller, the charging communication controller is activated by the method according to any one of claims 1 to 5.

7. The power supply circuit system according to claim 6, characterized in that: The power supply circuit system also includes a grounding wire, and the grounding wire and the control guide wire are respectively connected to the level detection circuit to form a closed loop. The delay expansion circuit includes a capacitor, one electrode of the capacitor is connected to the control guide wire, and the other electrode is connected to the grounding wire.

8. The power supply circuit system according to claim 7, characterized in that: The delay extension circuit also includes a voltage divider module, which is connected between the control guide line and the capacitor to adjust the voltage of the control guide signal to an adaptive voltage of the capacitor.

9. The power supply circuit system according to claim 8, characterized in that: The voltage divider module includes a first resistor and a second resistor, the first resistor is connected in series with the control guide line, and the second resistor and the capacitor are connected in parallel between the ground line and the control guide line.

10. A storage medium, characterized in that: An activation program is stored, and when the activation program is executed by a processor, the steps of the activation method according to any one of claims 1 to 5 are implemented.

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