Control system of starting power supply

Abstract

The invention discloses a control system of a starting power supply, and relates to the technical field of battery power supply, in particular to the control system of the starting power supply, which comprises a battery, a control module and an awakening module, the control module is connected with the battery and used for monitoring state parameters of the battery and controlling whether the battery outputs external output voltage or not. The wake-up module is connected with the control module and is used for receiving an external trigger signal and generating a wake-up signal; when the battery is in the low-power-consumption mode, if the control module receives the wake-up signal, the control module controls the battery to recover the external output voltage; when the battery is in the sleep mode, if the control module receives a wake-up signal, the control module controls the battery to recover the output of the internal working voltage; extra interfaces do not need to be expanded, and the function of awakening the starting power supply is achieved according to different application scenes.

Description

Technical Field

[0001] This invention relates to the field of battery power technology, and more particularly to a control system for a starting power supply. Background Technology

[0002] Currently, most motorcycle power supplies on the market use lead-acid batteries as their primary energy source. While lead-acid batteries offer the advantage of low cost, they also have several significant drawbacks, such as high self-discharge rate, short cycle life, low energy density, bulky size, and environmental pollution. With the development of lithium battery technology, some products have begun to adopt lithium batteries as an alternative to improve energy density and cycle life.

[0003] However, existing lithium battery power products have relatively limited functionality, mostly only meeting the basic need for vehicle starting and lacking consideration for diverse user scenarios. Furthermore, to achieve multi-functional expansion, existing products typically require additional openings in the casing or the addition of external interfaces, which not only increases product complexity and manufacturing costs but also impacts the overall product design and user experience.

[0004] Therefore, there is an urgent need in this field for a power supply with high integration, rich functionality, and strong intelligence, which can meet the user's needs in multiple scenarios while ensuring basic startup functions. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a technology that enables power systems to achieve intelligent wake-up.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] According to one aspect of the present invention, a control system for a startup power supply is provided, comprising: a battery, a control module, and a wake-up module;

[0008] The control module is connected to the battery to monitor the battery's status parameters and to control whether the battery outputs voltage to the outside.

[0009] The wake-up module is connected to the control module and is used to receive external trigger signals and generate wake-up signals;

[0010] When the status parameter reaches the first preset value, the control module controls the battery to not output voltage to the outside, but only output the internal working voltage, and enters the low power consumption mode.

[0011] When the status parameter reaches the second preset value, the control module controls the battery to not output voltage to the outside and not output internal working voltage, and enters sleep mode.

[0012] When the battery is in low power mode, if the control module receives a wake-up signal, the control module controls the battery to restore the external output voltage.

[0013] When the battery is in sleep mode, if the control module receives a wake-up signal, the control module controls the battery to restore the output of its internal operating voltage.

[0014] Specifically, status parameters include battery level;

[0015] The first preset value includes a first battery threshold; the second preset value includes a second battery threshold.

[0016] When the battery level is less than the first battery level threshold but greater than or equal to the second battery level threshold, it enters low power mode.

[0017] When the battery level is lower than the second power threshold, it enters sleep mode.

[0018] More specifically, it also includes output modules and internal power supply modules;

[0019] The internal power supply module is used to supply the operating voltage to the system's internal output.

[0020] The output module includes a positive output terminal and a negative output terminal, which are connected to the positive and negative terminals of the battery, respectively, and a one-way shut-off device is provided between the negative terminal and the negative output terminal of the battery.

[0021] The control module is connected to the one-way shut-off device.

[0022] More specifically, the wake-up module includes a button triggering unit, which is connected to a wake-up button. The wake-up button is used to generate a button wake-up signal in low-power mode; however, in sleep mode, the wake-up button does not generate a button wake-up signal.

[0023] Upon receiving the button wake-up signal, the control module resumes the output of the output module within a defined time threshold.

[0024] More specifically, the button wake-up unit includes a trigger circuit and a charging switch circuit;

[0025] The trigger circuit includes a first MOSFET, whose gate is connected to the negative output terminal of the startup power supply, and whose source is grounded.

[0026] The charging switch circuit includes a first capacitor, a first resistor, and a second MOSFET; the first capacitor and the first resistor are connected in parallel; one end of the first capacitor is connected to the drain of the first MOSFET, and the other end of the first capacitor is connected to the gate of the second MOSFET; the source of the second MOSFET is connected to the positive output terminal of the power supply, and the drain is used to output the level signal triggered by the wake-up button.

[0027] More specifically, the trigger circuit also includes a first Zener diode, the negative terminal of which is connected to the gate of the first MOSFET, and the positive terminal of which is connected to the negative output terminal of the power supply.

[0028] The wake-up module includes a charging wake-up unit; the charging wake-up unit is used to generate a wake-up signal when the battery is connected to an external charger.

[0029] The charging wake-up unit includes a first transistor and a second transistor. The bases of the first transistor and the second transistor are connected to the positive output terminal of the power supply. The emitter of the first transistor is connected to the negative output terminal of the power supply. The collector of the first transistor is connected to the base of the second transistor. The emitter of the second transistor is connected to the base of the first transistor. The collector of the second transistor is used to output a level signal triggered during charging.

[0030] More specifically, the base of the first transistor is grounded through the first diode, and the emitter is connected to the negative output terminal of the power supply through the second diode;

[0031] The first transistor is an NPN type transistor; the second transistor is a PNP type transistor.

[0032] More specifically, the base and collector of the first transistor, and the base and emitter of the second transistor, are respectively connected to the output terminal of the internal power supply module;

[0033] The internal power supply module is also equipped with a signal feedback terminal, and the collector of the second transistor is connected to the signal feedback terminal.

[0034] Another specific example is the unidirectional turn-off device, which includes a third MOSFET and a fourth MOSFET. The source or drain of the third MOSFET is connected to the drain or source of the fourth MOSFET, and the turn-off directions of the third MOSFET and the fourth MOSFET are opposite. The control module is connected to the gate of each third MOSFET and the fourth MOSFET respectively.

[0035] The beneficial effects of this invention are as follows: A control system for a startup power supply includes a battery, a control module, and a wake-up module. The control module is connected to the battery to monitor the battery's state parameters and control whether the battery outputs an external voltage. The wake-up module is connected to the control module to receive an external trigger signal and generate a wake-up signal. When the state parameters reach a first preset value, the control module controls the battery to not output voltage externally, only outputting its internal working voltage, entering a low-power mode. When the state parameters reach a second preset value, the control module controls the battery to not output voltage externally and not output its internal working voltage, entering a sleep mode. When the battery is in low-power mode, if the control module receives a wake-up signal, the control module controls the battery to resume outputting an external voltage. When the battery is in sleep mode, if the control module receives a wake-up signal, the control module controls the battery to resume outputting its internal working voltage. This system requires no additional interface expansion and can implement the function of waking up the startup power supply according to different application scenarios. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a block diagram illustrating the electrical principle of a power supply control system according to an embodiment of the present invention.

[0038] Figure 2 This is a schematic diagram of the battery and output module of a power supply control system according to an embodiment of the present invention.

[0039] Figure 3 This is a schematic diagram of the internal power supply module of a power supply control system according to an embodiment of the present invention.

[0040] Figure 4 This is a schematic diagram of the wake-up button and button wake-up unit of a power supply control system according to an embodiment of the present invention.

[0041] Figure 5 This is a schematic diagram of the charging wake-up unit of a power supply control system according to an embodiment of the present invention. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this invention. Obviously, the described embodiments are only some embodiments of this invention, not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0043] Example 1

[0044] One implementation method of the control system for a starting power supply according to the present invention is as follows: Figures 1 to 5 As shown, it includes: a battery, a control module, an output module, an internal power supply module, and a wake-up module; the internal power supply module is used to output the operating voltage to the system.

[0045] The batteries are connected to the output modules, which in turn are connected to the control module, the internal power supply module, and the wake-up module.

[0046] The control module is connected to a sampling unit, which is connected to the battery to collect battery voltage data. The control module calculates the battery's charge based on the voltage data and enters the corresponding operating mode. The operating modes include low-power mode and sleep mode.

[0047] Specifically, the control module has a built-in first threshold and a second threshold. When the state parameter reaches the first preset value, the control module controls the battery to not output voltage externally, but only outputs the internal working voltage, entering a low-power mode. When the state parameter reaches the second preset value, the control module controls the battery to not output voltage externally and not output the internal working voltage, entering a sleep mode. When the battery is in low-power mode, if the control module receives a wake-up signal, the control module controls the battery to resume outputting voltage externally. When the battery is in sleep mode, if the control module receives a wake-up signal, the control module controls the battery to resume outputting the internal working voltage.

[0048] The output module includes a positive output terminal P+ and a negative output terminal P-. The positive output terminal P+ and the negative output terminal P- are connected to the positive terminal B+ and the negative terminal B- of the battery, respectively, and a one-way shut-off device is provided between the negative terminal B- of the battery and the negative output terminal P-.

[0049] The control module is connected to the one-way shut-off device and is used to control the conduction of the one-way shut-off device.

[0050] When the operating mode is low power mode, the output module is prevented from outputting voltage by controlling the unidirectional shutdown.

[0051] When the operating mode is sleep mode, the output module does not output voltage to the outside and the internal power supply module does not output operating voltage by controlling the one-way shutdown.

[0052] The wake-up module is connected to the control module and is used to generate a wake-up signal; the control module receives the wake-up signal and switches the battery's operating state by controlling the one-way shutdown device.

[0053] More specifically, the first preset value includes a first battery level threshold; the second preset value includes a second battery level threshold; when the battery level is less than the first battery level threshold but greater than or equal to the second battery level threshold, the system enters a low-power mode; when the battery level is less than the second battery level threshold, the system enters a sleep mode. In this embodiment, the first battery level threshold is 30%, and the second battery level threshold is 10%.

[0054] More specifically, the unidirectional turn-off includes a third MOSFET D1 and a fourth MOSFET C1. The source or drain of the third MOSFET D1 is connected to the drain or source of the fourth MOSFET C1, and the turn-off directions of the third MOSFET D1 and the fourth MOSFET C1 are opposite. The control module is connected to the gate of each of the third MOSFET D1 and the fourth MOSFET C1.

[0055] The control module includes a main control MCU. The main control MCU calculates the power by integrating the current, and then controls the turn-off and turn-on of the third MOSFET D1 and the fourth MOSFET C1 according to the power status.

[0056] Example 2

[0057] One implementation method of the control system for a starting power supply according to the present invention is as follows: Figures 1 to 5 As shown, the main technical solution of this embodiment is basically the same as that of Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here. The difference between this embodiment and Embodiment 1 is as follows:

[0058] The wake-up module includes a wake-up button K1 and a button wake-up unit. The two ends of the wake-up button K1 are connected to the positive output terminal P+ and the negative output terminal P-, respectively.

[0059] The wake-up button is used to generate a wake-up signal in low-power mode; however, in sleep mode, the wake-up button does not generate a wake-up signal. When the control module receives the wake-up signal, it resumes the output of the output module within a defined time threshold.

[0060] In this embodiment, the button wake-up unit includes a trigger circuit and a charging switch circuit. The trigger circuit includes a first MOSFET Q28, the gate of which is connected to the negative output terminal P-, and the source of which is grounded. The charging switch circuit includes a first capacitor C34, a first resistor R77, and a second MOSFET Q19. The first capacitor C34 and the first resistor R77 are connected in parallel. One end of the first capacitor C34 is connected to the drain of the first MOSFET Q28, and the other end of the first capacitor C34 is connected to the gate of the second MOSFET Q19. The source of the second MOSFET Q19 is connected to the positive output terminal P+, and is used to output the level signal K_DET triggered by the wake-up button K1.

[0061] More specifically, the trigger circuit also includes a first Zener diode ZD6, the negative terminal of which is connected to the gate of the first MOSFET Q28, and the positive terminal is connected to the negative output terminal P-.

[0062] Example 3

[0063] One implementation method of the control system for a starting power supply according to the present invention is as follows: Figures 1 to 5 As shown, the main technical solution of this embodiment is basically the same as that of Embodiment 1 or Embodiment 2. Features not explained in this embodiment adopt the explanations in Embodiment 1 or Embodiment 2, and will not be repeated here. The difference between this embodiment and Embodiment 1 or Embodiment 2 is:

[0064] The wake-up module includes a charging wake-up unit; the charging wake-up unit is used to generate a corresponding charging wake-up signal when the battery is connected to an external charger; when the working mode is sleep mode, if the control module receives the charging wake-up signal (i.e. the wake-up signal in embodiment 1), it triggers the internal power supply module to resume output.

[0065] In this embodiment, the charging wake-up unit includes a first transistor Q8 and a second transistor Q13. The base of the first transistor Q8 is connected to the positive output terminal B+ through resistors R40 and R35. The base of the second transistor Q13 is connected to the positive output terminal B+ through resistor R51. The emitter of the first transistor Q8 is connected to the negative output terminal P-. The collector of the first transistor Q8 is connected to the base of the second transistor Q13 through resistor R34. The emitter of the second transistor Q13 is connected to the base of the first transistor Q8 through resistor R40. The collector of the second transistor Q13 is used to output a level signal triggered during charging.

[0066] Specifically, the base of the first transistor Q8 is grounded through the first diode D4, and the emitter is connected to the negative output terminal P- through the second diode D6.

[0067] More specifically, the first transistor is an NPN transistor; the second transistor is a PNP transistor.

[0068] Example 4

[0069] One implementation method of the control system for a starting power supply according to the present invention is as follows: Figures 1 to 5 As shown, the main technical solution of this embodiment is basically the same as that of Embodiment 1, Embodiment 2, or Embodiment 3. Features not explained in this embodiment adopt the explanations in Embodiment 1, Embodiment 2, or Embodiment 3, and will not be repeated here. The difference between this embodiment and Embodiment 1, Embodiment 2, or Embodiment 3 is as follows:

[0070] The input terminal of the internal power supply module is connected to the positive terminal B+ of the battery, and the output terminals supply power to the control module and the output module respectively, providing operating voltage for the control module and the output module. Specifically, the base and collector of the first transistor Q8, and the base and emitter of the second transistor Q13 are connected to the output terminal (+3V3) of the internal power supply module; the internal power supply module also has a signal feedback terminal, which is connected to the second transistor Q13. The drain of the second MOSFET Q19 is connected to the signal feedback terminal of the internal power supply module.

[0071] The specific working principle of this invention is as follows:

[0072] When the battery level is greater than 30%, it is in standby mode. The main control MCU controls the third MOSFET D1 and the fourth MOSFET C1 to turn on normally, and the main control MCU controls POWSAAVE to output a high level. At this time, the battery normally supplies power to the internal power supply module and the external module.

[0073] When the battery level is between 10% and 30%, it is in low-power mode. The main control MCU controls the third MOSFET D1 to turn off and the fourth MOSFET C1 to turn on. At this time, the system can charge but cannot discharge. If the customer presses the button K1 on the external module at this time, connecting the positive output terminal P+ and the negative output terminal P-, a voltage surge will be applied to the negative output terminal P-. When the surge voltage exceeds the breakdown voltage of the Zener diode ZD6, the first MOSFET Q28 will be triggered to turn on, charging the first capacitor C34. During the charging process, the second MOSFET Q19 will be turned on, and the voltage level signal K_DET will change. After the main control MCU recognizes the voltage change in the voltage level signal K_DET, it turns on the third MOSFET D1 to provide emergency power to the battery. After the first capacitor C34 is fully charged, the second MOSFET Q19 will turn off. Therefore, even if the user accidentally presses and holds the button for a long time, the product will not be continuously awakened, thus effectively saving energy and preventing further battery depletion while ensuring normal user operation.

[0074] When the battery level is below 10%, the system enters sleep mode. The main control MCU controls both the third MOSFET D1 and the fourth MOSFET C1 to be turned off, and POWSAAVE outputs a low level. At this time, the system is in a state where it cannot charge or discharge. If the customer connects the charger at this time, since the positive output terminal P+, the battery positive terminal B+, and the charger positive terminal are connected together, and the charger's output voltage is higher than the product voltage, the charger's voltage will flow through the battery B+, the internal power supply module, resistor R35, and resistor R40, thereby triggering the first transistor Q8 to turn on. Then, the current flows through resistor R51 and resistor R40, triggering the second transistor Q13 to turn on, thus causing a voltage change in the level signal C_DET. This allows the internal power supply module to resume powering the main control MCU. At the same time, the main control MCU can be woken up by the level signal C_DET.

[0075] In summary, the above methods can adapt to different power levels and scenarios, ensuring that users can effectively save energy and avoid further battery depletion under normal usage conditions.

[0076] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A control system for a starting power supply, characterized in that, include: Battery, control module, and wake-up module; The control module is connected to the battery to monitor the battery's status parameters and to control whether the battery outputs an external voltage. The wake-up module is connected to the control module and is used to receive external trigger signals and generate wake-up signals. When the state parameter reaches the first preset value, the control module controls the battery to not output voltage to the outside, but only output the internal working voltage, and enters the low power consumption mode. When the state parameter reaches the second preset value, the control module controls the battery to not output voltage to the outside and not output internal working voltage, and enters sleep mode; When the battery is in low power mode, if the control module receives the wake-up signal, the control module controls the battery to restore its external output voltage. When the battery is in sleep mode, if the control module receives the wake-up signal, the control module controls the battery to restore the output of its internal operating voltage.

2. The control system for a starting power supply according to claim 1, characterized in that: The status parameters include battery level; The first preset value includes a first battery level threshold; the second preset value includes a second battery level threshold. When the battery level is less than a first power threshold but greater than or equal to a second power threshold, it enters a low-power mode. When the battery level is less than the second power threshold, it enters sleep mode.

3. The control system for a starting power supply according to claim 2, characterized in that: It also includes an output module and an internal power supply module; The internal power supply module is used to output the operating voltage to the system. The output module includes a positive output terminal and a negative output terminal, which are respectively connected to the positive and negative terminals of the battery, and a one-way shut-off device is provided between the negative terminal and the negative output terminal of the battery. The control module is connected to the one-way shut-off device.

4. The control system for a starting power supply according to claim 3, characterized in that: The wake-up module includes a button triggering unit, which is connected to a wake-up button. The wake-up button is used to generate a button wake-up signal in the low-power mode; wherein, in the sleep mode, the wake-up button does not generate the button wake-up signal. Upon receiving the button wake-up signal, the control module resumes the output of the output module within a defined time threshold.

5. The control system for a starting power supply according to claim 4, characterized in that: The button wake-up unit includes a trigger circuit and a charging switch circuit; The trigger circuit includes a first MOSFET (Q28), the gate of which is connected to the negative output terminal of the startup power supply, and the source is grounded. The charging switch circuit includes a first capacitor (C34), a first resistor (R77), and a second MOSFET (Q19); the first capacitor (C34) and the first resistor (R77) are connected in parallel; one end of the first capacitor (C34) is connected to the drain of the first MOSFET (Q28), and the other end of the first capacitor (C34) is connected to the gate of the second MOSFET (Q19); the source of the second MOSFET (Q19) is connected to the positive output terminal of the power supply, and the drain is used to output the level signal triggered by the wake-up button.

6. The control system for a starting power supply according to claim 5, characterized in that: The trigger circuit also includes a first Zener diode (ZD6), the negative terminal of which is connected to the gate of the first MOSFET (Q28), and the positive terminal is connected to the negative output terminal of the power supply.

7. A control system for a starting power supply according to any one of claims 1 to 6, characterized in that: The wake-up module includes a charging wake-up unit; the charging wake-up unit is used to generate the wake-up signal when the battery is connected to an external charger; The charging wake-up unit includes a first transistor (Q8) and a second transistor (Q13). The bases of the first transistor (Q8) and the second transistor (Q13) are connected to the positive output terminal of the power supply. The emitter of the first transistor (Q8) is connected to the negative output terminal of the power supply. The collector of the first transistor (Q8) is connected to the base of the second transistor (Q13). The emitter of the second transistor (Q13) is connected to the base of the first transistor (Q8). The collector of the second transistor (Q13) is used to output a level signal triggered during charging.

8. The control system for a starting power supply according to claim 7, characterized in that: The base of the first transistor (Q8) is grounded through the first diode (D4), and the emitter is connected to the negative output terminal of the startup power supply through the second diode (D6). The first transistor is an NPN transistor; the second transistor is a PNP transistor.

9. The control system for a starting power supply according to claim 8, characterized in that: The base and collector of the first transistor (Q8), and the base and emitter of the second transistor (Q13) are respectively connected to the output terminal of the internal power supply module; The internal power supply module is also provided with a signal feedback terminal, and the collector of the second transistor (Q13) is connected to the signal feedback terminal.

10. The control system for a starting power supply according to claim 3, characterized in that: The unidirectional turn-off device includes a third MOS transistor (D1) and a fourth MOS transistor (C1), wherein the source or drain of the third MOS transistor (D1) is connected to the drain or source of the fourth MOS transistor (C1), and the turn-off directions of the third MOS transistor (D1) and the fourth MOS transistor (C1) are opposite. The control module is connected to the gates of each of the third MOS transistors (D1) and the fourth MOS transistors (C1).

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