Intelligent power distribution control circuit, power distribution system and electronic equipment

Abstract

The utility model discloses an intelligent power distribution control circuit, a power distribution system and electronic equipment, a level conversion module receives a pulse width modulation signal provided by a first controller and converts the pulse width modulation signal into a driving control signal, and a driving module generates a diagnosis driving signal according to the driving control signal and feeds back the diagnosis driving signal to the first controller. Therefore, the internal power distribution control function of the first controller cannot be affected in the running-away state, the driving module is connected with the state display lamp, the driving module drives the state display lamp to be turned on according to the diagnosis driving signal, and the running-away state of the first controller is displayed.

Description

Technical Field

[0001] The present application relates to the field of power distribution technology, and in particular to an intelligent power distribution control circuit, a power distribution system, and electronic equipment. Background Art

[0002] With increasing user demand for distribution automation systems, smart distribution terminals are increasingly using dual microcontroller units (MCUs). One MCU handles analog data acquisition, operation monitoring, and protection control, while the other handles communication with the master station and file management. As product functionality continues to improve, remote In Application Programming (IAP) program upgrades for the smart distribution terminal's main control module have become increasingly urgent and important.

[0003] However, in current power distribution systems, a failure of the MCU usually affects the power distribution control function. Utility Model Content

[0004] In view of the above problems, the present application provides an intelligent power distribution control circuit, a power distribution system and an electronic device, which can solve the problem that the power distribution control function of the MCU is usually affected after it runs away.

[0005] In a first aspect, an embodiment of the present application provides an intelligent power distribution control circuit for controlling a status display light. The intelligent power distribution control circuit includes:

[0006] a level conversion module, configured to receive a pulse width modulation signal provided by the first controller and convert the pulse width modulation signal into a drive control signal;

[0007] The driving module is connected to the status display light and is used to generate a diagnostic driving signal according to the driving control signal and feed it back to the first controller, and drive the status display light to light up according to the diagnostic driving signal.

[0008] In the technical solution of the embodiment of the present application, the pulse width modulation signal provided by the first controller is received by the level conversion module, and the pulse width modulation signal is converted into a drive control signal. The drive module generates a diagnostic drive signal based on the drive control signal and feeds it back to the first controller, so that the first controller will not affect its internal power distribution control function when it is in a runaway state. The drive module is connected to the status display light, and the drive module drives the status display light to light up according to the diagnostic drive signal to display the runaway state of the first controller.

[0009] In some embodiments, the intelligent power distribution control circuit further includes:

[0010] a latch control module connected to the power-on signal terminal and the second controller, configured to receive a firmware upgrade control signal provided by the second controller, and control an output state of a power-on wake-up signal outputted by the power-on signal terminal according to the firmware upgrade control signal;

[0011] The driving module is further configured to generate a diagnosis driving signal according to the power-on wake-up signal.

[0012] In the technical solution of the embodiment of the present application, a latch control module receives a firmware upgrade control signal provided by a second controller and controls the output of a power-on wake-up signal based on the firmware upgrade control signal. When the power-on wake-up signal is output to a driver module, the driver module can generate a corresponding diagnostic drive signal based on the power-on wake-up signal, and the diagnostic drive signal can drive a status indicator light to illuminate. In the present application, the latch control module performs logical processing on the firmware upgrade control signal, thereby controlling the power-on wake-up signal to stop output when the second controller performs a firmware upgrade, thereby preventing the second controller from interfering with the status indicator light during the firmware upgrade, achieving a senseless firmware upgrade, and reducing the probability of users misjudging the operating status of the power distribution system.

[0013] In some embodiments, the intelligent power distribution control circuit further includes:

[0014] The delay module is connected to the power-on signal terminal and the driving module, and is used for delaying the power-on wake-up signal input through the power-on signal terminal and then outputting it to the driving module.

[0015] In the technical solution of the embodiment of the present application, the delay module delays the power-on wake-up signal input from the power-on signal end, and the power-on wake-up signal is output to the driving module after delay processing, which can improve the voltage stability of the power-on wake-up signal, avoid the problem of the status display light flashing at the moment of power-on, and reduce the probability of users misjudging the working status of the power distribution system.

[0016] In some embodiments, the intelligent power distribution control circuit further includes:

[0017] The anti-false touch module is connected to the level conversion module and the power-on signal terminal, and is used to adjust the level of the drive control signal according to the power-on wake-up signal input from the power-on signal terminal.

[0018] In the technical solution of the embodiment of the present application, a connection is established between the power-on signal end and the level conversion module through an anti-false touch module. When the power-on wake-up signal is output at the power-on signal end, the voltage of the power supply end of the level conversion module can be pulled down, so that the initial state of the level conversion module is in a disconnected state. In this way, the problem of false triggering of the level conversion module can be prevented, and the problem of the status display light flashing at the moment of power-on can be avoided, thereby reducing the probability of users misjudging the working status of the power distribution system.

[0019] In some embodiments, the level conversion module includes: a first energy storage unit, a first switch unit, and a second switch unit;

[0020] The first energy storage unit is connected between the first controller and the first switch unit, the first end and the second end of the first switch unit are respectively connected to the first power supply end and the control end of the second switch unit, and the first end and the second end of the second switch unit are respectively connected to the power signal end and the ground.

[0021] In the technical solution of the embodiments of the present application, the power-on signal terminal can provide a power-on wake-up signal, which can be at a high level. The first switch unit receives a pulse-width modulated signal provided by the first controller and switches on or off according to the pulse-width modulated signal, thereby controlling the voltage between the first power supply terminal and the control terminal of the second switch unit. Thus, the switching state of the second switch unit is related to the level of the pulse-width modulated signal. When the second switch unit is on, it lowers the voltage at the control terminal of the driver module. When the second switch unit is off, the power-on signal terminal can raise the voltage at the control terminal of the driver module, thereby outputting a drive control signal corresponding to the switching states of the first and second switch units to the control terminal of the driver module. The driver module generates a diagnostic drive signal based on the drive control signal and feeds it back to the first controller, ensuring that the first controller's internal power distribution control function is not affected when it is in a runaway state. Furthermore, the driver module is connected to a status indicator light via the driver module, and the driver module illuminates the status indicator light based on the diagnostic drive signal, indicating the runaway state of the first controller.

[0022] In some embodiments, the driving module includes: a clamping unit, a transistor unit;

[0023] The clamping unit is used to clamp the control terminal of the transistor unit within a first threshold voltage range according to the driving control signal, so as to control the transistor unit to output a corresponding diagnosis driving signal.

[0024] In the technical solution of the embodiment of the present application, the clamping unit has a voltage clamping function. When receiving a high-level drive control signal, the voltage of the drive control signal can be controlled within a first threshold voltage range, thereby controlling the transistor unit to operate in a linear amplification region, so that the voltage of the diagnostic drive signal output by the transistor unit remains within a second threshold voltage range, ensuring that the transistor unit can normally drive the status display light.

[0025] In some embodiments, the latch control module includes: a third switch unit, a fourth switch unit, and a latch;

[0026] The data input pin of the latch is used to receive a firmware upgrade control signal, the timing signal pin of the latch is used to receive a timing control signal, the output pin of the latch is connected to the control end of the third switch unit, the first end of the third switch unit is connected to the control end of the fourth switch unit, the second end of the third switch unit is grounded, and the first end and the second end of the fourth switch unit are respectively connected to the second controller and the drive module.

[0027] In the technical solution of the embodiment of the present application, the data input pin of the latch is used to receive the firmware upgrade control signal, the timing signal pin of the latch is used to receive the timing control signal, and the output pin of the latch is used to output the logic control signal. The latch, the third switch unit and the fourth switch unit constitute a latch circuit. Before the firmware upgrade, the firmware upgrade control signal is low level, the timing control signal is a pulse level signal, the output pin of the latch outputs a low level logic control signal, the third switch unit is turned off, and the fourth switch unit is turned off, thereby controlling the power-on signal end to not output the power-on wake-up signal. In this way, the driver module can control the status display light to go out, thereby realizing a senseless firmware upgrade. After the firmware upgrade is completed, the firmware upgrade control is set to a high level. At this time, the latch outputs a high level logic control signal from its output pin, the third switch unit is turned on, the fourth switch unit is turned on, and the power-on wake-up signal is output to the driver module. The driver module can generate a corresponding diagnostic drive signal according to the power-on wake-up signal, and the diagnostic drive signal can drive the status display light to light up. In this application, the firmware upgrade control signal is logically processed by a latch circuit composed of a latch, a third switch unit and a fourth switch unit, so as to control the power-on wake-up signal to stop output when the second controller performs a firmware upgrade, thereby avoiding the second controller from interfering with the status display light during the firmware upgrade, realizing a senseless firmware upgrade, and reducing the probability of users misjudging the working status of the power distribution system.

[0028] In some embodiments, the intelligent power distribution control circuit further includes at least one unidirectional conduction module, and the latch control module is connected to at least one power-on wake-up pin of the second controller via the at least one unidirectional conduction module to receive a power-on wake-up signal provided by the second controller.

[0029] In the technical solution of the embodiment of the present application, by setting a one-way conduction module connected between the second controller and the latch control module, it is possible to avoid signal interference between multiple power-on wake-up pins of the second controller, improve the level stability of the power-on signal end, and reduce the probability of users misjudging the working status of the power distribution system.

[0030] In some embodiments, the delay module includes:

[0031] A voltage dividing unit, connected to the latch control module, for performing voltage dividing processing on the power-on wake-up signal to obtain a voltage dividing control signal;

[0032] a fifth switch unit, connected to the voltage dividing unit, and configured to be turned on or off according to the voltage dividing control signal;

[0033] a second energy storage unit connected to the voltage dividing unit and the fifth switch unit, and configured to control charging and discharging of the voltage dividing control signal to control the voltage of the control terminal of the fifth switch unit;

[0034] The sixth switch unit is connected to the latch control module and the driving module. The switching state of the sixth switch unit is controlled by the fifth switch unit and is used to control the on and off of the power-on wake-up signal.

[0035] In the technical solution of the embodiments of the present application, a voltage divider unit divides the power-on wake-up signal input from the power-on signal terminal to generate a voltage divider control signal. The voltage divider control signal is then delayed by the second energy storage unit, causing the fifth switch unit to be turned on with a delayed turn-on. After the fifth switch unit is turned on, the sixth switch unit is turned on, at which point the power-on wake-up signal is output to the driver module. Because the power-on wake-up signal is output to the driver module only after the sixth switch unit is turned on with a delayed turn-on, the voltage stability of the power-on wake-up signal is improved, preventing the status indicator light from flickering at the moment of power-on, and reducing the probability of users misjudging the operating status of the power distribution system.

[0036] A second aspect of the embodiments of the present application further provides a power distribution system, which includes: a first controller, a second controller; and an intelligent power distribution control circuit as described in any one of the above embodiments.

[0037] A third aspect of the embodiments of the present application further provides an electronic device, the electronic device comprising: a first controller, a second controller; and an intelligent power distribution control circuit as in any of the above embodiments.

[0038] In the technical solution of the embodiment of the present application, a pulse width modulation signal provided by the first controller is received through a level conversion module, and the pulse width modulation signal is converted into a drive control signal. The drive module generates a diagnostic drive signal based on the drive control signal and feeds it back to the first controller, so that the first controller does not affect its internal power distribution control function when it is in a runaway state. The drive module is connected to a status display light, and the drive module drives the status display light to light up according to the diagnostic drive signal, thereby displaying the runaway state of the first controller. When the first controller runs away, the status display light will be illuminated, and the first controller can still perform the power distribution control function, with little impact on the power distribution system.

[0039] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0041] Figure 1 A first structural diagram of the intelligent power distribution control circuit provided in an embodiment of the present application;

[0042] Figure 2 A second structural diagram of the intelligent power distribution control circuit provided in an embodiment of the present application;

[0043] Figure 3 A third structural diagram of the intelligent power distribution control circuit provided in an embodiment of the present application;

[0044] Figure 4 A fourth structural diagram of the intelligent power distribution control circuit provided in an embodiment of the present application;

[0045] Figure 5 A fifth structural diagram of the intelligent power distribution control circuit provided in an embodiment of the present application;

[0046] Figure 6 A sixth structural diagram of the intelligent power distribution control circuit provided in an embodiment of the present application;

[0047] Figure 7 A seventh structural diagram of the intelligent power distribution control circuit provided in an embodiment of the present application;

[0048] Figure 8 This is an eighth structural diagram of the intelligent power distribution control circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0049] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0051] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0052] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. References to the phrase "second connection port" at various locations in the specification do not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0054] In the description of the embodiments of the present application, the term "multi-frame" refers to two or more (including two).

[0055] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0056] In the current power distribution system, a runaway MCU usually affects the power distribution control function, posing a high safety risk.

[0057] In order to solve the above technical problems, the embodiment of the present application provides an intelligent power distribution control circuit. The intelligent power distribution control circuit in the embodiment of the present application is used to control the status display light. Figure 1As shown, the intelligent power distribution control circuit in this embodiment includes: a level conversion module 200 and a drive module 300. The level conversion module 200 is used to receive the pulse width modulation signal provided by the first controller 110 and convert the pulse width modulation signal into a drive control signal; the drive module 300 is connected to the status display light, and the drive module 300 is used to generate a diagnostic drive signal according to the drive control signal and feed it back to the first controller 110, and drive the status display light to light up according to the diagnostic drive signal.

[0058] In this embodiment, the pulse width modulation signal provided by the first controller 110 is received by the level conversion module 200, and the pulse width modulation signal is converted into a drive control signal. The drive module 300 generates a diagnostic drive signal based on the drive control signal and feeds it back to the first controller 110. The first controller 110 can normally perform power distribution management within the power distribution system according to the diagnostic drive signal, so that the first controller 110 will not affect its internal power distribution control function when it is in a runaway state. The drive module 300 is connected to the status display light, and the drive module 300 drives the status display light to light up according to the diagnostic drive signal to display the runaway state of the first controller 110.

[0059] In some embodiments, participating Figure 2 As shown, the intelligent power distribution control circuit also includes a latch control module 400, which is connected to the power-on signal terminal 130 and the second controller 120. The latch control module 400 is used to receive the firmware upgrade control signal provided by the second controller 120, and control the output state of the power-on wake-up signal output by the power-on signal terminal 130 according to the firmware upgrade control signal; the drive module 300 is also used to generate a diagnostic drive signal according to the power-on wake-up signal.

[0060] In this embodiment, the latch control module 400 receives a firmware upgrade control signal provided by the second controller 120 and controls the output of a power-on wake-up signal based on the firmware upgrade control signal. When the power-on wake-up signal is output to the driver module 300, the driver module 300 can generate a corresponding diagnostic drive signal based on the power-on wake-up signal, and this diagnostic drive signal can illuminate the status indicator light. In this application, the latch control module 400 performs logical processing on the firmware upgrade control signal, thereby controlling the power-on wake-up signal to stop output when the second controller 120 performs a firmware upgrade. This prevents the second controller 120 from interfering with the status indicator light during the firmware upgrade, achieving a senseless firmware upgrade, and reducing the probability of users misjudging the operating status of the power distribution system.

[0061] In some embodiments, the power-on signal terminal 130 may be a power-on wake-up pin of the second controller 120 , and the second controller 120 may output a power-on wake-up signal through its power-on wake-up pin when the power distribution system is powered on.

[0062] In some embodiments, the power-on signal terminal 130 may be connected to an input terminal of a power distribution system via a voltage detection circuit, and the power-on signal terminal 130 outputs a power-on wake-up signal when the power distribution system is powered on.

[0063] In some embodiments, see Figure 3 As shown, the intelligent power distribution control circuit also includes a delay module 500, which is connected to the power-on signal terminal 130 and the driving module 300. The delay module 500 is used to delay the power-on wake-up signal input through the power-on signal terminal 130 and then output it to the driving module 300.

[0064] In this embodiment, the delay module 500 delays the power-on wake-up signal input from the power-on signal terminal 130, and the power-on wake-up signal is output to the driving module 300 after delay processing, which can improve the voltage stability of the power-on wake-up signal, avoid the problem of the status display light flashing at the moment of power-on, and reduce the probability of users misjudging the working status of the power distribution system.

[0065] In some embodiments, combined Figure 4 As shown, the delay module 500 may be connected to the second controller 120 via the latch control module 400 .

[0066] In this embodiment, the power-on wake-up signal can be output by the second controller 120, and the latch control module 400 receives the firmware upgrade control signal provided by the second controller 120, and controls the output of the power-on wake-up signal according to the firmware upgrade control signal. When the power-on wake-up signal is output, the output power-on wake-up signal is delayed by the delay module 500 and then output to the drive module 300, which can improve the voltage stability of the power-on wake-up signal, avoid the problem of the status display light flashing at the moment of power-on, and reduce the probability of users misjudging the working status of the power distribution system.

[0067] In some embodiments, the delay module 500 may be connected to the power-on signal terminal 130 via the latch control module 400 .

[0068] In this embodiment, the power-on wake-up signal is provided by the power-on signal terminal 130, and the power-on wake-up signal output by the power-on signal terminal 130 is controlled by the latch control module 400 in its output state. Specifically, the latch control module 400 controls the output of the power-on wake-up signal according to the firmware upgrade control signal. When the power-on wake-up signal is output, the output power-on wake-up signal is delayed by the delay module 500 and then output to the driving module 300, which can improve the voltage stability of the power-on wake-up signal, avoid the problem of the status display light flashing at the moment of power-on, and reduce the probability of users misjudging the working status of the power distribution system.

[0069] In some embodiments, the delay module 500 may be connected to the power-on signal terminal 130 and the second controller 120 via the latch control module 400 .

[0070] In this embodiment, the latch control module 400 receives the firmware upgrade control signal provided by the second controller 120, and controls the output of the power-on wake-up signal according to the firmware upgrade control signal. When the power-on wake-up signal is output, the output power-on wake-up signal is delayed by the delay module 500 and then output to the drive module 300. This can improve the voltage stability of the power-on wake-up signal, avoid the problem of the status display light flashing at the moment of power-on, and reduce the probability of users misjudging the working status of the power distribution system.

[0071] In some embodiments, see Figure 5 As shown, the intelligent power distribution control circuit also includes an anti-false touch module 600, which is connected to the level conversion module 200 and the power-on signal terminal 130. The anti-false touch module 600 is used to adjust the level of the drive control signal according to the power-on wake-up signal input from the power-on signal terminal 130.

[0072] In this embodiment, a connection is established between the power-on signal terminal 130 and the level conversion module 200 through the anti-false touch module 600. When the power-on signal terminal 130 outputs a power-on wake-up signal, the voltage of the power supply terminal of the level conversion module 200 can be pulled down, so that the initial state of the level conversion module 200 is in a disconnected state. In this way, the problem of false triggering of the level conversion module 200 can be prevented, and the problem of the status display light flashing at the moment of power-on can be avoided, thereby reducing the probability of users misjudging the working status of the power distribution system.

[0073] In some embodiments, see Figure 6 As shown, the latch control module 400 is connected to the driving module 300 via the delay module 500, and the anti-false touch module 600 is connected between the delay module 500 and the level conversion module 200, and the anti-false touch module 600 establishes a connection between the delay module 500 and the level conversion module 200.

[0074] In this embodiment, when the power-on signal end 130 outputs a power-on wake-up signal via the latch control module 400 and the delay module 500, the voltage of the power supply end of the level conversion module 200 can be pulled down by the anti-false touch module 600, so that the initial state of the level conversion module 200 is in the disconnected state. In this way, the problem of false triggering of the level conversion module 200 can be prevented, and the problem of the status display light flashing at the moment of power-on can be avoided, thereby reducing the probability of users misjudging the working status of the power distribution system.

[0075] In some embodiments, see Figure 7As shown, the level conversion module 200 includes: a first energy storage unit 210, a first switch unit 220, and a second switch unit 230; the first energy storage unit 210 is connected between the first controller 110 and the first switch unit 220, the first end and the second end of the first switch unit 220 are respectively connected to the first power supply end and the control end of the second switch unit 230, and the first end and the second end of the second switch unit 230 are respectively connected to the power signal end 130 and the ground.

[0076] In this embodiment, the power-on signal terminal 130 can provide a power-on wake-up signal, which can be a high level. The first switch unit 220 receives the pulse width modulation signal provided by the first controller 110 and is turned on or off according to the pulse width modulation signal, thereby controlling the voltage of the first power supply terminal and the control terminal of the second switch unit 230. In this way, the switching state of the second switch unit 230 is related to the level of the pulse width modulation signal. When the second switch unit 230 is turned on, the voltage of the control terminal of the driver module 300 is pulled down. When the second switch unit 230 is turned off, the power-on signal terminal 130 can pull up the voltage of the control terminal of the driver module 300, thereby outputting the corresponding drive control signal to the control terminal of the driver module 300 according to the switching state of the first switch unit 220 and the second switch unit 230. The driving module 300 generates a diagnostic driving signal based on the driving control signal and feeds it back to the first controller 110, so that the first controller 110 will not affect its internal power distribution control function when it is in a runaway state. The driving module 300 is connected to the status display light, and the driving module 300 drives the status display light to light up according to the diagnostic driving signal to display the runaway state of the first controller 110.

[0077] In some embodiments, see Figure 7As shown, the first energy storage unit 210 includes a second capacitor C2 and a fourth resistor R4. The first end of the fourth resistor R4 and the first end of the second capacitor C2 are commonly connected to the limp mode detection pin PWM_LimpHome of the first controller 110. The second end of the fourth resistor R4 is connected to the first power supply terminal VDD. The second end of the second capacitor C2 is connected to the control terminal of the first switch unit 220. When the first controller 110 is operating normally, the limp mode detection pin PWM_LimpHome of the first controller 110 normally outputs a pulse-width modulated signal, and the second switch unit 230 outputs a corresponding drive control signal to the control terminal of the driver module 300, which drives the status indicator light to flash. When the first controller 110 malfunctions, the limp mode detection pin PWM_LimpHome of the first controller 110 stops outputting, the voltage level of the first end of the fourth resistor R4 is pulled low, the first switch unit 220 is turned off, the second switch unit 230 is turned off, the voltage level of the control terminal 101 of the driver module 300 is pulled high, and the voltage level of the output terminal of the driver module 300 is set high, causing the status indicator light to remain on.

[0078] In some embodiments, if the delay module 500 and the latch control module 400 are not provided in the intelligent power distribution control circuit, the control terminal 101 of the driver module 300 can be connected to a power source via a resistor to provide power to the driver module 300. When the second switch unit 230 is turned on, the level of the control terminal 101 of the driver module 300 is pulled low. When the second switch unit 230 is turned off, the level of the control terminal 101 of the driver module 300 is pulled high, and the level of the output terminal of the driver module 300 is set high, so that the status indicator light is always on.

[0079] In some embodiments, see Figure 7 As shown, the first switch unit 220 includes a first switch tube Q1, a second resistor R2, and a third resistor R3. The first end of the first switch tube Q1 and the first end of the second resistor R2 are commonly connected to the first power supply terminal VDD, the second end of the second resistor R2 and the first end of the third resistor R3 are commonly connected to the control end of the first switch tube Q1, the second end of the third resistor R3 is connected to the first energy storage unit 210, and the second end of the first switch tube Q1 is connected to the control end of the second switch unit 230.

[0080] In some embodiments, the first switch tube Q1 is a PNP transistor.

[0081] In some embodiments, see Figure 7As shown, the second switch unit 230 includes a second switch tube Q2, a second diode D2, and a third diode D3. The control end of the second switch tube Q2 and the anode of the third diode D3 are commonly connected to the first switch unit 220, the cathode of the third diode D3 is connected to the cathode of the second diode D2, the first end of the second switch tube Q2 is connected to the control end of the driving module 300, and the second end of the second switch tube Q2 and the anode of the second diode D2 are commonly connected to the ground.

[0082] In some embodiments, the second switch tube Q2 is an NMOS tube. By arranging the second diode D2 and the third diode D3 relative to each other and connected between the gate and source of the second switch tube Q2, the gate voltage of the second switch tube Q2 can be clamped, thereby avoiding the problem of device damage caused by excessive gate voltage of the second switch tube Q2.

[0083] In some embodiments, see Figure 7 As shown, the gate of the second switch tube Q2 is grounded via the first capacitor C1, which can avoid sudden voltage changes at the gate of the second switch tube Q2 and avoid abnormal display of the status indicator light due to large fluctuations in the gate voltage of the second switch tube Q2.

[0084] In some embodiments, see Figure 7 As shown, the driving module 300 includes: a clamping unit 310 and a transistor unit 320; the clamping unit 310 is used to clamp the control end of the transistor unit 320 within a first threshold voltage range according to a driving control signal to control the transistor unit 320 to output a corresponding diagnostic driving signal.

[0085] In this embodiment, the clamping unit 310 has a voltage clamping function. When receiving a high-level driving control signal, the voltage of the driving control signal can be controlled within a first threshold voltage range, thereby controlling the transistor unit 320 to operate in a linear amplification region, so that the voltage of the diagnostic driving signal output by the transistor unit 320 remains within a second threshold voltage range, ensuring that the transistor unit 320 can normally drive the status display light to display.

[0086] In some embodiments, see Figure 7 As shown, the clamping unit 310 may include a first diode D1 , a cathode of the first diode D1 is connected to the control terminal of the transistor unit 320 , and an anode of the first diode D1 is grounded.

[0087] In this embodiment, the first diode D1 may be a clamping diode or a voltage regulator diode. The first diode D1 may clamp the control terminal of the transistor unit 320 within a first threshold voltage range, thereby causing the transistor unit 320 to operate in a linear amplification region.

[0088] In some embodiments, the transistor unit 320 operates in a linear amplification region, so that the 12V power-on wake-up signal at the power-on signal terminal 130 can be converted into a 5V diagnostic driving signal.

[0089] In some embodiments, see Figure 7 As shown, the transistor unit 320 includes a transistor Q0 and a first resistor R1. The collector of the transistor Q0 can be directly connected to the power-on signal terminal 130 or connected to the power-on signal terminal 130 via the latch control module 400. The base of the transistor Q0 is connected to the level conversion module 200. The emitter of the transistor Q0 and the first end of the first resistor R1 serve as the output terminal LimpH_5V of the transistor unit 320 for outputting the diagnostic drive signal. The second end of the first resistor R1 is grounded.

[0090] In some embodiments, see Figure 7 As shown, the latch control module 400 includes: a third switch unit 420, a fourth switch unit 410 and a latch 430; the data input pin D of the latch 430 is used to receive a firmware upgrade control signal, the timing signal pin CP of the latch 430 is used to receive a timing control signal, the output pin of the latch 430 is connected to the control end of the third switch unit 420, the first end of the third switch unit 420 is connected to the control end of the fourth switch unit 410, the second end of the third switch unit 420 is grounded, the first end and the second end of the fourth switch unit 410 are respectively connected to the second controller 120 and the driving module 300, and the power pin Vcc of the latch 430 is connected to the second power supply end Vcc_P.

[0091] In this embodiment, the data input pin D of the latch 430 is used to receive a firmware upgrade control signal, the timing signal pin CP of the latch 430 is used to receive a timing control signal, and the output pin of the latch 430 is used to output a logic control signal. The latch 430, the third switch unit 420, and the fourth switch unit 410 form a latch circuit. Before the firmware upgrade, the firmware upgrade control signal is low, the timing control signal is a pulse level signal, and the output pin of the latch 430 outputs a low-level logic control signal. The third switch unit 420 is turned off, and the fourth switch unit 410 is turned off, thereby controlling the power-on signal terminal 130 to not output a power-on wake-up signal. In this way, the driver module 300 can control the status display light to turn off, thereby achieving a senseless firmware upgrade. After the firmware upgrade is completed, the firmware upgrade control is set to a high level. At this time, the latch 430 outputs a high-level logic control signal from its output pin Q, the third switch unit 420 is turned on, the fourth switch unit 410 is turned on, and the power-on wake-up signal is output to the driver module 300. The driver module 300 can generate a corresponding diagnostic drive signal based on the power-on wake-up signal, and the diagnostic drive signal can drive the status indicator light to light up. In this application, the latch circuit composed of the latch 430, the third switch unit 420, and the fourth switch unit 410 performs logical processing on the firmware upgrade control signal, thereby controlling the power-on wake-up signal to stop output when the second controller 120 performs a firmware upgrade, preventing the second controller 120 from interfering with the status indicator light during the firmware upgrade, achieving a senseless firmware upgrade, and reducing the probability of users misjudging the working status of the power distribution system.

[0092] In some embodiments, participating Figure 7 As shown, the third switch unit 420 includes a sixth resistor R6, a seventh resistor R7, and a third switch tube Q3. The control end of the third switch tube Q3, the first end of the sixth resistor R6, and the first end of the seventh resistor R7 are connected in common. The second end of the sixth resistor R6 is connected to the output pin Q of the latch 430. The first end of the third switch tube Q3 is connected to the control end of the fourth switch unit 410. The second end of the seventh resistor R7 and the second end of the third switch tube Q3 are connected in common to ground.

[0093] In some embodiments, the third switch tube Q3 may be an NPN transistor.

[0094] In some embodiments, participating Figure 7 As shown, the fourth switch unit 410 includes a fourth switch tube Q4, an eighth resistor R8, and a ninth resistor R9. The first end of the fourth switch tube Q4 and the first end of the eighth resistor R8 are commonly connected to the power-on signal terminal 130, the second end of the eighth resistor R8 and the first end of the ninth resistor R9 are commonly connected to the control end of the fourth switch tube Q4, the second end of the fourth switch tube Q4 is connected to the delay module 500, and the second end of the ninth resistor R9 is connected to the third switch unit 420.

[0095] In some embodiments, participating Figure 7 As shown, the input pin D of the latch 430 can be connected to the second power supply terminal Vcc_P via the fifth resistor R5, the firmware upgrade detection pin O_D_M of the second controller 120 is connected to the input pin D of the latch 430, and the timing signal pin CP of the latch 430 is connected to the timing signal pin O_PWM_M of the second controller 120. The timing signal pin O_PWM_M of the second controller 120 is used to output a timing control signal, which is a pulse width modulation signal.

[0096] In some embodiments, the intelligent power distribution control circuit further includes at least one unidirectional conduction module, and the latch control module 400 is connected to at least one power-on wake-up pin of the second controller 120 via the at least one unidirectional conduction module to receive a power-on wake-up signal provided by the second controller 120 .

[0097] In this embodiment, by setting a unidirectional conduction module connected between the second controller 120 and the latch control module 400, it is possible to avoid signal interference between multiple power-on wake-up pins of the second controller 120, improve the level stability of the power-on signal terminal 130, and reduce the probability of users misjudging the working status of the power distribution system.

[0098] In some embodiments, see Figure 8 As shown, the latch control module 400 may be connected to the diagnosis wake-up pin DIAG_WAKE of the second controller 120 via a diode Z1 , and may also be connected to the power distribution wake-up pin SBC_WAKE of the second controller 120 via a diode Z2 .

[0099] In some embodiments, see Figure 8 As shown, the delay module 500 includes: a voltage divider unit 510, a fifth switch unit 520, a second energy storage unit 530, and a sixth switch unit 540. The voltage divider unit 510 is connected to the latch control module 400 and is used to divide the power-on wake-up signal to obtain a voltage divider control signal; the fifth switch unit 520 is connected to the voltage divider unit 510, and the fifth switch unit 520 is used to turn on or off according to the voltage divider control signal; the second energy storage unit 530 is connected to the voltage divider unit 510 and the fifth switch unit 520, and the second energy storage unit 530 is used to control the charging and discharging of the voltage divider control signal to control the voltage of the control end of the fifth switch unit 520; the sixth switch unit 540, the sixth switch unit 540 is connected to the latch control module 400 and the drive module 300, and the switching state of the sixth switch unit 540 is controlled by the fifth switch unit 520, and is used to control the conduction and shutdown of the power-on wake-up signal.

[0100] In this embodiment, the voltage divider unit 510 divides the power-on wake-up signal input from the power-on signal terminal 130 to generate a voltage divider control signal. The voltage divider control signal is then delayed by the second energy storage unit 530, causing the fifth switch unit 520 to be turned on with a delayed turn-on. After the fifth switch unit 520 is turned on, the sixth switch unit 540 is turned on, at which point the power-on wake-up signal is output to the driver module 300. Because the power-on wake-up signal is output to the driver module 300 only after the sixth switch unit 540 is turned on with a delayed turn-on, the voltage stability of the power-on wake-up signal is improved, preventing the status indicator light from flickering during power-on, and reducing the likelihood of users misjudging the operating status of the power distribution system.

[0101] In some embodiments, see Figure 8 As shown, the voltage divider unit 510 includes a tenth resistor R10 and an eleventh resistor R11, the output end of the latch control module 400 is grounded via the tenth resistor R10 and the eleventh resistor R11, and the common end of the tenth resistor R10 and the eleventh resistor R11 is connected to the fifth switch unit 520 via the second energy storage unit 530.

[0102] In some embodiments, if the latch control module 400 is not provided, the voltage dividing unit 510 may be directly connected to the power-up signal terminal 130 .

[0103] In some embodiments, see Figure 8 As shown, the second energy storage unit 530 includes a capacitor C3 , and a common end of the tenth resistor R10 and the eleventh resistor R11 is grounded via the capacitor C3 .

[0104] In some embodiments, see Figure 8 As shown, the common end of the tenth resistor R10 and the eleventh resistor R11 may also be grounded via a fourth diode D4.

[0105] In some embodiments, the fourth diode D4 may be a Zener diode.

[0106] In some embodiments, see Figure 8 As shown, the fifth switch unit 520 includes a fifth switch tube Q5, a fifth diode D5, and a sixth diode D6. The control end of the fifth switch tube Q5 and the anode of the fifth diode D5 are connected to the voltage divider unit 510, the cathode of the fifth diode D5 is connected to the cathode of the sixth diode D6, the first end of the fifth switch tube Q5 is connected to the control end of the sixth switch unit 540, and the second end of the fifth switch tube Q5 and the anode of the sixth diode D6 are grounded.

[0107] In some embodiments, the sixth diode D6 may be a Zener diode.

[0108] In some embodiments, the fifth switch transistor Q5 may be an NMOS transistor.

[0109] In some embodiments, see Figure 8 As shown, the sixth switch unit 540 includes a sixth switch tube Q6, a twelfth resistor R12, a thirteenth resistor R13, and a fourteenth resistor R14. The first end of the twelfth resistor R12 and the first end of the thirteenth resistor R13 are commonly connected to the fifth switch unit 520. The second end of the thirteenth resistor R13, the first end of the fourteenth resistor R14, and the control end of the sixth switch tube Q6 are commonly connected. The first end of the sixth switch tube Q6, the second end of the fourteenth resistor R14, and the second end of the twelfth resistor R12 are commonly connected to the latch control module 400. The sixth switch tube Q6 is connected to the control end of the driving module 300 via the fifteenth resistor.

[0110] In some embodiments, the sixth switch tube Q6 may be a PNP transistor.

[0111] In some embodiments, in the absence of the latch control module 400 , the first terminal of the sixth switch Q6 , the second terminal of the fourteenth resistor R14 , and the second terminal of the twelfth resistor R12 may be commonly connected to the power-on signal terminal 130 .

[0112] In some embodiments, see Figure 8 As shown, the anti-false touch module 600 includes a sixteenth resistor R16, a seventeenth resistor R17, a seventh switch tube Q7, a nineteenth resistor R19, and an eighteenth resistor R18. The first end of the sixteenth resistor R16 is connected to the latch control module 400, the second end of the sixteenth resistor R16, the first end of the seventeenth resistor R17, and the control end of the seventh switch tube Q7 are connected in common, the first end of the seventh switch tube Q7, the first end of the eighteenth resistor R18, and the first end of the nineteenth resistor R19 are connected in common, the second end of the seventh switch tube Q7 and the second end of the seventeenth resistor R17 are grounded, the second end of the eighteenth resistor R18 is connected to the first power supply end VDD, and the second end of the nineteenth resistor R19 is connected to the control end of the driving module 300.

[0113] In some embodiments, the seventh switch tube Q7 may be an NPN transistor.

[0114] In this embodiment, the power-on signal terminal 130 can establish a connection with the level conversion module 200 via the seventh switch Q7, the nineteenth resistor R19, and the eighteenth resistor R18. When the seventh switch Q7 is off, the delay module 500 is disconnected from the level conversion module 200. When the seventh switch Q7 is on, the first power supply terminal can be grounded via the eighteenth resistor R18 and the seventh switch Q7, and the control terminal of the second switch unit 230 can be grounded via the nineteenth resistor R19 and the seventh switch Q7. In this way, a pull-down resistor can be provided between the first and second terminals of the first switch Q1. The eighteenth resistor R18 can initially disconnect the first switch Q1, preventing it from being erroneously triggered. The nineteenth resistor R19 can initially disconnect the second switch Q2, thereby preventing the second controller 120 from erroneously triggering and causing an abnormal display on the status indicator.

[0115] An embodiment of the present application further provides a power distribution system, which includes: a first controller 110, a second controller 120; and an intelligent power distribution control circuit as described in any of the above embodiments.

[0116] An embodiment of the present application further provides an electronic device, which includes: a first controller 110, a second controller 120; and an intelligent power distribution control circuit as described in any one of the above embodiments.

[0117] In this embodiment, the level conversion module 200 receives the pulse width modulation signal provided by the first controller 110 and converts the pulse width modulation signal into a drive control signal. The drive module 300 generates a diagnostic drive signal based on the drive control signal and feeds it back to the first controller 110. This ensures that the first controller 110 does not affect its internal power distribution control function when it is in a runaway state. Furthermore, the drive module 300 is connected to a status indicator light, which illuminates the status indicator light based on the diagnostic drive signal to indicate the runaway state of the first controller 110. When the first controller 110 is in a runaway state, the status indicator light is illuminated, and the first controller 110 can still perform its power distribution control function, with minimal impact on the power distribution system.

[0118] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0119] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0120] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the electronic device embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0121] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0122] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0123] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. An intelligent power distribution control circuit, characterized in that: Used to control the status display light, the intelligent power distribution control circuit includes: a level conversion module, configured to receive a pulse width modulation signal provided by the first controller and convert the pulse width modulation signal into a drive control signal; The driving module is connected to the status display light and is used to generate a diagnostic driving signal according to the driving control signal and feed it back to the first controller, and drive the status display light to light up according to the diagnostic driving signal.

2. The intelligent power distribution control circuit according to claim 1, characterized in that: The intelligent power distribution control circuit further includes: a latch control module connected to the power-on signal terminal and the second controller, configured to receive a firmware upgrade control signal provided by the second controller, and control an output state of a power-on wake-up signal output by the power-on signal terminal according to the firmware upgrade control signal; The driving module is further configured to generate a diagnostic driving signal according to the power-on wake-up signal.

3. The intelligent power distribution control circuit according to claim 1, characterized in that: The intelligent power distribution control circuit further includes: The delay module is connected to the power-on signal terminal and the driving module, and is used for delaying the power-on wake-up signal input via the power-on signal terminal and then outputting the signal to the driving module.

4. The intelligent power distribution control circuit according to claim 1, characterized in that: The intelligent power distribution control circuit further includes: The anti-false touch module is connected to the level conversion module and the power-on signal terminal, and is used to adjust the level of the drive control signal according to the power-on wake-up signal input by the power-on signal terminal.

5. The intelligent power distribution control circuit according to any one of claims 1 to 4, characterized in that: The level conversion module includes: a first energy storage unit, a first switch unit, and a second switch unit; The first energy storage unit is connected between the first controller and the first switch unit, the first end and the second end of the first switch unit are respectively connected to the first power supply end and the control end of the second switch unit, and the first end and the second end of the second switch unit are respectively connected to the power signal end and the ground.

6. The intelligent power distribution control circuit according to any one of claims 1 to 4, characterized in that: The driving module includes: a clamping unit and a transistor unit; The clamping unit is used to clamp the control terminal of the transistor unit within a first threshold voltage range according to the driving control signal, so as to control the transistor unit to output a corresponding diagnosis driving signal.

7. The intelligent power distribution control circuit according to claim 2, characterized in that: The latch control module includes: a third switch unit, a fourth switch unit and a latch; The data input pin of the latch is used to receive the firmware upgrade control signal, the timing signal pin of the latch is used to receive the timing control signal, the output pin of the latch is connected to the control end of the third switch unit, the first end of the third switch unit is connected to the control end of the fourth switch unit, the second end of the third switch unit is grounded, and the first end and the second end of the fourth switch unit are respectively connected to the second controller and the driving module.

8. The intelligent power distribution control circuit according to claim 2 or 7, characterized in that: The intelligent power distribution control circuit further includes at least one unidirectional conduction module, and the latch control module is connected to at least one power-on wake-up pin of the second controller via the at least one unidirectional conduction module to receive a power-on wake-up signal provided by the second controller.

9. The intelligent power distribution control circuit according to claim 3, characterized in that: The delay module includes: A voltage dividing unit, connected to the latch control module, for performing voltage dividing processing on the power-on wake-up signal to obtain a voltage dividing control signal; a fifth switch unit, connected to the voltage dividing unit, and configured to be turned on or off according to the voltage dividing control signal; a second energy storage unit connected to the voltage dividing unit and the fifth switch unit, and configured to control charging and discharging of the voltage dividing control signal to control the voltage of the control terminal of the fifth switch unit; A sixth switch unit is connected to the latch control module and the driving module, wherein the switching state of the sixth switch unit is controlled by the fifth switch unit and is used to control the on and off of the power-on wake-up signal.

10. A power distribution system, characterized in that: The power distribution system includes a first controller, a second controller, and the intelligent power distribution control circuit according to any one of claims 1 to 9.

11. An electronic device, characterized in that: The electronic device includes a first controller, a second controller, and the intelligent power distribution control circuit according to any one of claims 1 to 9.

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