Power supply circuit system and its activation method, storage medium

Abstract

The application provides a power supply circuit system, an activation method thereof, and a storage medium. The power supply circuit system comprises a charging communication controller, a proximity guide line connected to the charging communication controller, and a control guide line connected to the charging communication controller. The activation method comprises the following steps: connecting a first power supply to continuously apply a first voltage to the proximity guide line, so that the voltage of the proximity guide line is stabilized at the first voltage, wherein the first voltage is lower than the voltage of the control guide line when the power supply circuit system is not connected to a device to be charged; detecting a voltage change value of the proximity guide line; determining whether the voltage change value of the proximity guide line reaches a first threshold value; and activating the charging communication controller in response to the voltage change value reaching the first threshold value. The application can reduce the energy consumption and complexity required for activating the charging communication controller.

Description

Technical Field

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

[0002] The charging communication controller, also known as the Electric Vehicle Communication Controller (EVCC), is the core control module of an electric vehicle charging system. As the "translation hub" of the charging system, it enables the conversion between different charging protocols through protocol conversion and hardware adaptation, thereby promoting the international application of new energy vehicles. Typically, the charging communication controller enters a low-power mode when not in operation to reduce energy consumption.

[0003] In existing technologies, there are three main ways to activate the charging communication controller (i.e., switch from a non-working state to a working state or charging state): 1. Activation via an external control signal, which requires continuous monitoring to determine the activation timing, resulting in high energy consumption and complexity; 2. Continuous monitoring of the control pilot (CP) signal, which requires continuous monitoring of the control pilot signal to be at a high level (i.e., active state) for a certain period of time before the charging communication controller can be activated. Continuously maintaining a high level also leads to high energy consumption and high monitoring complexity; 3. Continuous monitoring of the resistance value change data transmitted by the proximity pilot (PP) line to determine whether the charging interface connection meets the standards, and activating the charging communication controller when it does. However, the existing proximity pilot resistance network is very complex, making the circuit structure quite complex. This not only ensures that the voltage of the proximity pilot line is always at a high voltage when the charging gun is not inserted, resulting in high energy consumption, but also usually requires monitoring the voltage changes of multiple circuit nodes, such as the S3 switch, leading to high monitoring complexity. Summary of the Invention

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

[0005] This application provides an activation method for a power supply circuit system, the power supply circuit system including a charging communication controller and a proximity guide and a control guide connected to the charging communication controller, the activation method including:

[0006] An external first power source is connected to continuously apply a first voltage to the proximity lead, so that the proximity lead is stabilized at the first voltage, which is lower than the voltage of the control lead when the power supply circuit system is not connected to the device to be charged.

[0007] The voltage change value near the lead wire is detected and acquired.

[0008] Determine whether the voltage change value near the lead wire reaches a first threshold.

[0009] The charging communication controller is activated when the voltage change value reaches a first threshold.

[0010] Optionally, the detection of the voltage change value of the proximity lead of the charging communication controller includes:

[0011] A comparator is connected between the proximity guide and the charging communication controller, and the first voltage is continuously applied to the comparator through a second power supply;

[0012] The comparator is used to detect and obtain the current second voltage of the proximity lead;

[0013] The difference between the first voltage and the second voltage is obtained through the comparator, and the difference is used as the voltage change value of the proximity lead.

[0014] Optionally, the charging communication controller includes a level detection circuit, and the proximity lead is connected to the level detection circuit; the control lead is connected to the level detection circuit to transmit a control lead signal to the level detection circuit; the first threshold is the voltage difference corresponding to the level detection circuit recognizing that the control lead signal has entered the second stage from the first stage; the first stage is the stage where the power supply circuit system is not connected to the device to be charged, and the second stage is the stage where the power supply circuit system is connected to the device to be charged.

[0015] Optionally, the charging communication controller includes a level detection circuit, and the proximity lead is connected to the level detection circuit; the first threshold is the minimum voltage corresponding to the level threshold that the level detection circuit can identify.

[0016] Optionally, the first threshold is V0, the first voltage is V1, the input voltage of the proximity lead is V, and V0≤|V–2*V1|.

[0017] Optionally, the activation method further includes:

[0018] An oscillator and a delay extension circuit are connected between the comparator and the charging communication controller;

[0019] The oscillator converts the proximity guide signal output by the comparator via the proximity guide into a modulation signal, and the delay extension circuit increases the pulse width of the modulation signal to at least a second threshold, wherein the second threshold is the minimum value of the pulse signal that the level detection circuit of the charging communication controller can recognize.

[0020] After the voltage change value reaches a first threshold, the activation method further includes:

[0021] Determine whether the level detection circuit detects a modulation signal with a pulse width greater than or equal to the second threshold;

[0022] When a modulated signal with a pulse width greater than or equal to the second threshold is detected, the step of activating the charging communication controller is performed.

[0023] This application provides a power supply circuit system, comprising:

[0024] Charging communication controller;

[0025] The proximity guide wire is connected to the charging communication controller;

[0026] Control leads are connected to the charging communication controller;

[0027] A first power source is used to continuously apply a first voltage to the proximity lead wire, so that the proximity lead wire is stabilized at the first voltage, and the first voltage is lower than the voltage of the control lead wire when the power supply circuit system is not connected to the device to be charged.

[0028] A voltage transformer detection circuit, connected to the proximity lead, is used to detect and acquire the voltage change value of the proximity lead;

[0029] The charging communication controller is also used to determine whether the voltage change value of the proximity lead reaches a first threshold, and to activate when it is determined that the voltage change value reaches the first threshold.

[0030] Optionally, the voltage transformer detection circuit includes a voltage regulator, a comparator, and a second power supply; the voltage regulator is connected between the first power supply and the proximity lead, and is used to stabilize the proximity lead at the first voltage; the comparator is connected to the proximity lead and between the voltage regulator and the charging communication controller; the second power supply is connected to the comparator, and is used to continuously apply the first voltage to the comparator; the comparator is also used to detect and obtain the current second voltage of the proximity lead, and to obtain the difference between the first voltage and the second voltage, and use it as the voltage change value of the proximity lead.

[0031] Optionally, the second power source and the first power source are the same power source, and both are the power supply batteries within the comparator.

[0032] This application provides a storage medium storing an activation program, which, when executed by a processor, implements the steps of the activation method as described in any of the preceding claims.

[0033] As described above, this application eliminates the need for external control signals, activating the charging communication controller solely based on voltage changes near the proximity leads. Furthermore, an external first power supply stabilizes the proximity leads at a first voltage, allowing activation of the charging communication controller to be determined by voltage changes near the proximity leads. This first voltage is lower than the voltage controlling the leads when the power supply circuit is not connected to a device, resulting in lower energy consumption for activation. This voltage change detection method allows for implementation with a simpler circuit structure, reducing monitoring complexity compared to traditional resistor networks. In summary, this application reduces both the energy consumption and complexity required to activate the charging communication controller. Attached Figure Description

[0034] Figure 1 This is a flowchart illustrating the activation method of the first power supply circuit system according to an embodiment of this application;

[0035] Figure 2 This is an equivalent schematic diagram of a power supply circuit system provided in an embodiment of this application;

[0036] Figure 3 This is a flowchart illustrating the activation method of the second power supply circuit system according to an embodiment of this application;

[0037] Figure 4 This is a flowchart illustrating the activation method of the third power supply circuit system according to an embodiment of this application;

[0038] Figure 5 This is an equivalent schematic diagram of another power supply circuit system provided in the embodiments of this application. Detailed Implementation

[0039] To address the aforementioned problems in the prior art, this application provides a power supply circuit system, its activation method, and a storage medium. These protection subjects are based on the same concept, and their problem-solving principles are essentially the same or similar. The implementation methods of each protection subject can be referred to mutually, and repeated details will not be elaborated upon.

[0040] In the embodiments of this application, the charging communication controller can be activated solely based on the control guidance signal without the need for an external control signal. Furthermore, an external first power supply is used to stabilize the proximity guide at a first voltage. The activation of the charging communication controller is determined based on the voltage change of the proximity guide. This first voltage is lower than the voltage of the control guide when the power supply circuit system is not connected to the device to be charged, resulting in lower energy consumption required for activation. Moreover, this voltage change detection method can be implemented with a relatively simple circuit structure, which reduces the monitoring complexity compared to traditional resistor networks.

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this 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 this application, and not all of them. Unless otherwise specified, the following embodiments and their technical features can be combined with each other, and also belong to the technical solutions of this application.

[0042] Figure 1 This is a flowchart illustrating an activation method for a power supply circuit system according to an embodiment of this application. The activation method for this power supply circuit system can also be simply referred to as an "activation method" or "method." The execution entity for each step can be a suitable activation device or power supply circuit system, and the specific device within the activation device or power supply circuit system that performs the action depends on the specific circumstances.

[0043] like Figure 1 As shown, the activation method includes at least the following steps:

[0044] S1: Connect an external first power source to continuously apply a first voltage to the proximity lead wire, so that the proximity lead wire is stabilized at the first voltage, which is lower than the voltage of the control lead wire when the power supply circuit system is not connected to the device to be charged.

[0045] S2: Detect and acquire the voltage change value near the lead wire;

[0046] S3: Determine whether the voltage change value near the lead wire reaches the first threshold;

[0047] If the voltage change value reaches the first threshold, then step S4 is executed: activate the charging communication controller;

[0048] If the voltage change value does not reach the first threshold, the voltage change event approaching the lead wire can be ignored, and detection can continue, i.e., steps S1 and S2 are executed until the next voltage change value approaching the lead wire reaches the first threshold, then step S4 is executed: activate the charging communication controller.

[0049] Combination Figure 2As shown, the power supply circuit system 100 includes a charging communication controller (commonly referred to as EVCC) 1, a control lead 2, a grounding wire (also known as a protective earthing wire, or PE for short) 3, and a proximity lead 4. The charging communication controller 1 may be equipped with a level detection circuit 10, and the control lead 2 and the proximity lead 4 are respectively connected to the level detection circuit 10.

[0050] The proximity guide 4 generates a proximity guide signal, and the proximity guide signal is a DC signal.

[0051] The control guide line 2 generates a control guide signal, and the control guide signal is a pulse signal.

[0052] Taking the power supply circuit system 100 applied to a charging pile with a charging gun as an example: the control guide line 2 is the CP line, and the control guide signal is the CP signal, 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 guide signal is continuously at 12V; in the second stage, when the charging gun is connected to the electric vehicle, the voltage is reduced due to the presence of the voltage divider resistor in the on-board charger, and the control guide signal jumps to 9V; in the third stage, after the electric vehicle confirms the charging signal, it will switch the voltage divider resistor in the on-board charger, causing the control guide signal to jump to 6V, and the main relay of the charging pile can then close, activating the charging communication controller 1 and starting to charge the electric vehicle. In any stage, the control guide signal needs to be continuously at a high level (i.e., in an active state), which results in high power consumption regardless of when the charging communication controller 1 is activated.

[0053] In any of the aforementioned stages, one of the functions of the proximity guide 4, acting as the PP line, is to detect the physical contact status between the charging gun's plug and the vehicle's charging port, such as fully connected, disconnected, or partially connected. The proximity guide 4 is connected to the electric vehicle's interface via a fixed resistor network (e.g., 2.7kΩ or 1.5kΩ) to form a DC voltage loop. For example, when the charging gun is not inserted, the proximity guide 4 remains open, with a voltage of 0V. After the plug is fully inserted, the resistor divider causes the proximity guide 4 to generate a specific voltage value (e.g., 6V or 9V), thus confirming successful entry into the charging connection state. In practical scenarios, during the second stage where the control signal jumps from 12V to 9V, the charging communication controller 1 can be activated. Simultaneously, when the charging gun is not inserted, the voltage of the proximity guide 4 remains at a high voltage state, such as 12V, resulting in higher power consumption.

[0054] In such Figure 2In the power supply circuit system 100 shown, this application uses an external first power supply 51 to stabilize the proximity guide 4 at a first voltage. The activation of the charging communication controller 1 is determined based on the voltage change value of the proximity guide 4. When the voltage change value reaches a first threshold, it indicates a significant voltage change in the proximity guide 4, suggesting a change in the charging gun's connection state, i.e., a transition from an unconnected state to a half-connected or fully connected state. Regardless of the transition, it indicates that the charging gun has established a connection with the electric vehicle, at which point the charging communication controller 1 can be activated. Since the first voltage is lower than the voltage of the control guide 2 when the power supply circuit system 100 is not connected to the device to be charged, i.e., lower than the voltage of the CP line 2 in the first stage (e.g., 12V), for example, the first voltage can be implemented as 5V, resulting in lower energy consumption required to activate the charging communication controller 1.

[0055] In addition, this application can activate the charging communication controller 1 based solely on the voltage change value of the proximity guide 4, i.e. the proximity guide signal, without the need for an external control signal. The activation timing can be determined without continuous monitoring, which can also reduce the energy consumption and complexity required to activate the charging communication controller 1.

[0056] Furthermore, the lower regulated voltage and the voltage change detection method based on it allow for implementation with a simpler circuit structure, reducing monitoring complexity compared to the traditional resistor network of PP line 4. For example, see [link to relevant documentation]. Figure 2 As shown, the power supply circuit system 100 can connect a voltage regulator 40, such as an LDO (low dropout regulator), to the PP line 4. The voltage regulator 40 is connected through a first power supply 51, and a first voltage is applied to the voltage regulator 40, thereby stabilizing the PP line 4 at a first voltage, such as 5V. At this time, the input voltage of the PP line 4 can be zero, that is, the charging pile stops supplying power to the PP line 4. A comparator 41 is connected between the voltage regulator 40 and the level detection circuit 10. One input terminal of the comparator 41 is connected to a 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. The first voltage is applied to the comparator 41 through the second power supply 52. ​​The second power supply 52 and the first power supply 51 can be the same power supply, such as the commonly used power supply battery in the comparator 41. The comparator 41 compares the voltage values ​​of the two input terminals and takes the difference between the first voltage and the second voltage as the voltage change value of the PP line 4, and transmits it to the level detection circuit 10 of the electrical communication controller 1. When the voltage change value reaches the first threshold, it indicates that the charging gun is connected to the electric vehicle, and the charging communication controller 1 can be activated at this time.

[0057] Based on this, such as Figure 3 As shown, step S2 can be implemented by including the following steps:

[0058] S21: Connect a comparator between the proximity lead and the charging communication controller, and continuously apply a first voltage to the comparator through a second power supply;

[0059] S22: Obtain a second voltage close to the current voltage of the lead wire by detecting the comparator;

[0060] S23: Obtain the difference between the first voltage and the second voltage through a comparator, and use the difference as the voltage change value close to the lead wire.

[0061] This example can detect voltage changes near the lead wire using a comparator and a second power supply. The circuit structure is simple, easy to implement, and has low energy consumption and monitoring complexity.

[0062] The specific value of the first threshold can be determined according to actual needs.

[0063] In one example, combining Figure 2 As shown, for a charging communication controller 1 equipped with a level detection circuit 10, the threshold value can be determined based on the recognition capability of the level detection circuit 10. For example, the first threshold value can be the minimum voltage corresponding to the level threshold value that the level detection circuit 10 can recognize. Here, this example associates the setting of the first threshold value with the recognition capability of the level detection circuit 10 to ensure the accuracy of activation monitoring.

[0064] In another example, combining Figure 2 As shown, in a scenario where the charging communication controller 1 with a level detection circuit 10 and the power supply circuit system 100 with a control guide line 2 are configured, the first threshold can be the voltage difference corresponding to the control guide signal transitioning from the first stage to the second stage as identified by the level detection circuit 10. The first stage is when the power supply circuit system 100 is not connected to the device to be charged (e.g., an electric vehicle), and the voltage corresponding to this first stage is, for example, 12V. The second stage is when the power supply circuit system 100 is connected to the device to be charged, and the voltage corresponding to this second stage is, for example, 9V. Therefore, the voltage difference corresponding to the control guide signal transitioning from the first stage to the second stage is 3V, and the minimum value of the first threshold can be this voltage difference, i.e., 3V. In this example, the setting of the first threshold is associated with the control guide signal of the control guide line 2, ensuring the executability of setting the first threshold through multiple dimensions, ultimately ensuring the accuracy of activation monitoring.

[0065] In another example, this application can set the first threshold according to the relationship V0≤|V–2*V1|, where V0 is the first threshold, V1 is the first voltage, and V is the input voltage near the lead wire. Figure 2In the power supply circuit system 100 shown, V is the voltage output by the charging pile to the proximity guide line 4, which can be called the initial power supply voltage. For example, it is the voltage output by the charging pile to the proximity guide line 4 when the control guide signal enters the second stage. Here, the second voltage is |V-V1|, that is, the absolute value of (V-V1). The difference between the first voltage and the second voltage is |V-2*V1|, that is, the absolute value of (V-2*V1). The first threshold is greater than or equal to this difference.

[0066] Figure 4 This is a flowchart illustrating another activation method for a power supply circuit system according to an embodiment of this application. For steps with the same content and components with the same names, this application uses the same reference numerals for identification. Combined with... Figure 4 As shown, the activation method in this example includes the following steps:

[0067] S1: Connect an external first power source to continuously apply a first voltage to the proximity lead wire, so that the proximity lead wire is stabilized at the first voltage, which is lower than the voltage of the control lead wire when the power supply circuit system is not connected to the device to be charged.

[0068] S21: Connect a comparator between the proximity lead and the charging communication controller, and continuously apply a first voltage to the comparator through a second power supply;

[0069] S22: Obtain a second voltage close to the current voltage of the lead wire by detecting the comparator;

[0070] S23: Obtain the difference between the first voltage and the second voltage through a comparator, and use the difference as the voltage change value close to the lead wire;

[0071] S24: Connect the oscillator and delay extension circuit between the comparator and the charging communication controller;

[0072] S25: The proximity guide signal output by the comparator from the proximity guide is converted into a modulation signal by the oscillator, and the pulse width of the modulation signal is increased to at least a second threshold by the time delay extension circuit, wherein the second threshold is the minimum value of the pulse signal that can be identified by the level detection circuit of the charging communication controller.

[0073] S3: Determine whether the voltage change value near the lead wire reaches the first threshold;

[0074] If the voltage change value reaches the first threshold, then step S40 is executed: determine whether the level detection circuit detects a modulation signal with a pulse width greater than or equal to the second threshold;

[0075] When a modulation signal with a pulse width greater than or equal to the second threshold is detected, step S4 is executed: activate the charging communication controller; when no modulation signal with a pulse width greater than or equal to the second threshold is detected, step S4 is not executed, and steps S1 and S2 can be returned to continue until the voltage change value near the lead wire is detected to reach the first threshold, at which point step S4 is executed.

[0076] If the voltage change value does not reach the first threshold, the voltage change event approaching the lead wire can be ignored, and detection can continue, i.e., steps S1 and S2 are executed until the next voltage change value approaching the lead wire reaches the first threshold, then step S4 is executed: activate the charging communication controller.

[0077] Steps S24 and S25 can be executed before or after step S3. The step numbers are for illustrative purposes only and can be executed before step S40.

[0078] Combination Figure 5 As shown, the power supply circuit system 100 of this application may further include an oscillator 61 and a time delay extension circuit 62. The output of the proximity lead 4 is a DC level, which can be converted into an AC signal by the oscillator 61 to obtain a modulation signal, also known as a pulse signal or pulse modulation signal. The duty cycle of this modulation signal is positively correlated with power consumption; that is, the lower the duty cycle, the lower the power consumption. The duty cycle represents the proportion of the on-time in a pulse cycle relative to the total time, which 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.

[0079] Therefore, for the modulation signal at lower power consumption, that is, when the duty cycle of the modulation signal is low, the delay extension circuit 62 can increase the pulse width of the modulation signal. For example, the pulse width of the control guide signal can be directly increased by two times and then used as the second threshold. According to research and multiple verification results, the pulse width after being directly increased by two times can be accurately identified by the current level detection circuit 10 of various types, so that it can be identified by the level detection circuit 10 of the charging communication controller 1, thereby realizing the activation of the charging communication controller 1 under low power consumption and low complexity.

[0080] Compared to Figure 1 The activation method shown in this example, when determining that the voltage change value of the proximity lead reaches the first threshold, does not directly activate the charging communication controller, but further introduces another dimension for re-judgment, in order to achieve the aforementioned Figure 1Building upon the beneficial effects of the activation method shown, this example further ensures the accuracy of the determination of whether or not activation has occurred.

[0081] In other examples, unlike Figure 5 The oscillator 61 and the delay extension circuit 62 shown are connected in series with the proximity lead 4 between the comparator 41 and the level detection circuit 10. The oscillator 61 and the delay extension circuit 62 can be connected in series and then in parallel with the proximity lead 4. A resistor can be provided between the comparator 41 and the level detection circuit 10 to avoid short circuit.

[0082] The specific structure of the time delay extension circuit 62 can be adapted to actual needs. For example, the time delay extension circuit 62 may include a capacitor, with one electrode connected to the oscillator 61 and the other electrode connected to the ground wire 3. When a proximity guidance signal is transmitted via the proximity guide line 4, the capacitor will charge or discharge. This charging or discharging process will have a certain time delay, thereby performing time delay extension processing on the proximity guidance signal, thus increasing the pulse width of the proximity guidance signal to at least the second threshold. This example uses only one capacitor to increase the pulse width of the control guidance signal, resulting in a simple circuit structure that is easy to implement.

[0083] This application also provides a power supply circuit system. For example... Figure 2 As shown, the power supply circuit system 100 includes a charging communication controller 1, a control lead wire 2, a ground wire 3, a proximity lead wire 4, a first power supply 51, and a voltage transformer detection circuit 5.

[0084] The proximity guide 4 is connected to the charging communication controller 1;

[0085] Control lead 2 is connected to charging communication controller 1;

[0086] The first power supply 51 is used to continuously apply a first voltage to the proximity guide 4, so that the proximity guide 4 is stabilized at the first voltage, which is lower than the voltage of the control guide 2 when the power supply circuit system 100 is not connected to the device to be charged.

[0087] The voltage transformer detection circuit 5 is connected to the proximity lead 4 and is used to detect and acquire the voltage change value of the proximity lead 4;

[0088] The charging communication controller 1 is also used to determine whether the voltage change value of the proximity lead 4 reaches a first threshold, and to activate when it is determined that the voltage change value reaches the first threshold.

[0089] In one example, the voltage transformer detection circuit 5 may include a voltage regulator 40, a comparator 41, and a second power supply 52; the voltage regulator 40 is connected between the first power supply 51 and the proximity lead 4 to stabilize the proximity lead 4 at a first voltage; the comparator 41 is connected to the proximity lead 4 and between the voltage regulator 40 and the charging communication controller 1; the second power supply 52 is connected to the comparator 41 to continuously apply the first voltage to the comparator 41; the comparator 41 is also used to detect and acquire the current second voltage of the proximity lead 4, and to obtain the difference between the first voltage and the second voltage, and use it as the voltage change value of the proximity lead 4.

[0090] The above-mentioned electronic components of the power supply circuit system 100 are activated by the charging communication controller 1 through 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 that the activation method of any of the above embodiments can achieve can be realized. For details, please refer to the above embodiments, which will not be repeated here.

[0091] It should be understood that the power supply circuit system 100 may also include other electronic components. For example, the power supply circuit system 100 may also include... Figure 2 Resistor 43, as shown, is connected between voltage regulator 40 and proximity lead 4, thus working with voltage regulator 40 to stabilize the first voltage. For example, the power supply circuit system 100 may also include, for instance, […]. Figure 5 The connection method between the oscillator 61 and the delay extension circuit 62 shown can be referred to the method embodiment described above, and will not be repeated here.

[0092] This application embodiment also provides a storage medium storing an activation program for a power supply circuit system. This activation program is essentially a computer program, which, when executed by a processor, implements the steps of the power supply circuit system activation method as in any example.

[0093] The storage medium includes, but is not limited to, any one of read-only memory (ROM), random access memory (RAM), magnetic disk, and optical disk.

[0094] Since the program stored in the storage medium can execute the steps in the activation method of the power supply circuit system of any embodiment provided in this application, the beneficial effects that the activation method of any of the foregoing embodiments can achieve can be realized. For details, please refer to the foregoing embodiments, which will not be repeated here.

[0095] This application also provides an activation device or chip, including a memory and a processor. The memory stores an activation program for a power supply circuit system. When the activation program is executed by the processor, it implements the steps of the activation method for the power supply circuit system of any of the foregoing embodiments. And / or, the activation device or chip is provided with a storage medium as shown in the above example, and the processor loads the storage medium to execute the steps of the activation method, thereby achieving the beneficial effects that the activation method of the corresponding example can achieve.

[0096] The above are only some embodiments of this application and do not limit the patent scope of this application. For those skilled in the art, any equivalent structural transformations made using the content of this specification and drawings are similarly included within the patent protection scope of this application.

[0097] The use of step designations such as S1 and S2 in this document is intended to more clearly and concisely describe the corresponding content and does not constitute a substantial restriction on the order. In specific implementation, those skilled in the art may execute S3 first and then S1, etc., but these should all be within the protection scope of this application.

[0098] Although this document uses terms such as "first," "second," etc., to describe various types of information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. Furthermore, the singular forms "a," "an," and "the" are intended to also include the plural forms. The terms "or" and "and / or" are interpreted as inclusive, or meaning either one or any combination thereof. Exceptions to this definition only arise when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

Claims

1. An activation method for a power supply circuit system, the power supply circuit system comprising a charging communication controller and proximity leads and control leads connected to the charging communication controller, characterized in that, The activation method includes: An external first power source is connected to continuously apply a first voltage to the proximity lead, so that the proximity lead is stabilized at the first voltage, which is lower than the voltage of the control lead when the power supply circuit system is not connected to the device to be charged. A comparator is connected between the proximity guide and the charging communication controller, and the first voltage is continuously applied to the comparator through a second power supply; The comparator is used to detect and obtain the current second voltage of the proximity lead; The difference between the first voltage and the second voltage is obtained through the comparator, and the difference is used as the voltage change value of the proximity lead. Determine whether the voltage change value near the lead wire reaches a first threshold. The charging communication controller is activated in response to the voltage change value reaching a first threshold. The activation method further includes: An oscillator and a delay extension circuit are connected between the comparator and the charging communication controller; The oscillator converts the proximity guide signal output by the comparator via the proximity guide into a modulation signal, and the delay extension circuit increases the pulse width of the modulation signal to at least a second threshold, wherein the second threshold is the minimum value of the pulse signal that the level detection circuit of the charging communication controller can recognize. After the voltage change value reaches a first threshold, the activation method further includes: Determine whether the level detection circuit detects a modulation signal with a pulse width greater than or equal to the second threshold; When a modulated signal with a pulse width greater than or equal to the second threshold is detected, the step of activating the charging communication controller is performed.

2. The activation method according to claim 1, characterized in that, The charging communication controller includes a level detection circuit, and the proximity lead is connected to the level detection circuit; the control lead is connected to the level detection circuit to transmit a control lead signal to the level detection circuit. The first threshold is the voltage difference corresponding to the control guidance signal transitioning from the first stage to the second stage as detected by the level detection circuit; the first stage is the stage where the power supply circuit system is not connected to the device to be charged, and the second stage is the stage where the power supply circuit system is connected to the device to be charged.

3. The activation method according to claim 1, characterized in that, The charging communication controller includes a level detection circuit, and the proximity lead is connected to the level detection circuit; The first threshold is the minimum voltage corresponding to the level threshold that the level detection circuit can recognize.

4. The activation method according to claim 1, characterized in that, The first threshold is V0, the first voltage is V1, the input voltage of the proximity lead is V, and V0≤|V–2*V1|.

5. A power supply circuit system for performing the activation method of the power supply circuit system as described in any one of claims 1-4, characterized in that, The power supply circuit system includes: Charging communication controller; The proximity guide wire is connected to the charging communication controller; Control leads are connected to the charging communication controller; A first power source is used to continuously apply a first voltage to the proximity lead wire, so that the proximity lead wire is stabilized at the first voltage, and the first voltage is lower than the voltage of the control lead wire when the power supply circuit system is not connected to the device to be charged. A voltage regulator detection circuit is connected to the proximity lead. The voltage regulator detection circuit includes a voltage regulator, a comparator, and a second power supply. The voltage regulator is connected between the first power supply and the proximity lead, and is used to stabilize the proximity lead at a first voltage. The comparator is connected to the proximity lead and between the voltage regulator and the charging communication controller. The second power supply is connected to the comparator and is used to continuously apply the first voltage to the comparator. The comparator is also used to detect and acquire the current second voltage of the proximity lead, and to obtain the difference between the first voltage and the second voltage, and use this difference as the voltage change value of the proximity lead. The charging communication controller is also used to determine whether the voltage change value of the proximity lead reaches a first threshold, and to activate when it is determined that the voltage change value reaches the first threshold.

6. The power supply circuit system according to claim 5, characterized in that, The second power source and the first power source are the same power source, and both are the power supply batteries within the comparator.

7. A storage medium, characterized in that, An activation program is stored, which, when executed by a processor, implements the steps of the activation method as described in any one of claims 1 to 4.

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