Power supply lock control circuit, controller lock control circuit and scooter

Abstract

The utility model relates to a power supply lock control circuit, a controller lock control circuit and a scooter. The power supply lock control circuit provided by the embodiment of the utility model comprises a switch module which is configured to be switched on or switched off under the control of a switch signal so as to control the output of a wake-up signal; the voltage conversion module comprises an enabling control end; the voltage conversion module is configured to acquire a power supply signal and open or close the output of a controller power supply signal under the control of a lock control signal acquired by an enabling control end so as to open or stop power supply to the controller; wherein under the condition that the voltage conversion module outputs the controller power supply signal, the enabling control end is configured to input an intermediate signal, so that the voltage conversion module keeps opening the output of the controller power supply signal; the controller power supply signal is determined according to power signal conversion. The embodiment of the utility model can reduce power consumption and improve power supply stability.

Description

Technical Field

[0001] The present application relates to the field of power supply control technology, and in particular to a power supply lock control circuit, a controller lock control circuit, and a scooter. Background Art

[0002] Currently, vehicles, such as bicycles and scooters, typically utilize controllers to control driving, including start / stop, speed, and lighting. Therefore, whenever the battery is powered or there is power output, the controller is also powered. Furthermore, when the controller is powered, it cannot be independently turned on or off. Consequently, the controller constantly consumes energy, which is detrimental to reducing power consumption. Utility Model Content

[0003] In view of this, embodiments of the present application provide a power supply lock control circuit, a controller lock control circuit, and a scooter to solve at least one problem existing in the background technology.

[0004] In a first aspect, an embodiment of the present application provides a power supply lock control circuit, the power supply lock control circuit comprising:

[0005] a switch module configured to be turned on or off under the control of a switch signal to control the output of a wake-up signal; and

[0006] A voltage conversion module includes an enable control terminal; the voltage conversion module is configured to obtain a power signal and, under the control of a lock control signal obtained by the enable control terminal, turn on or off the output of a controller power signal to start or stop power supply to the controller; wherein, when the voltage conversion module outputs the controller power signal, the enable control terminal is configured to input an intermediate signal to cause the voltage conversion module to keep turning on the output of the controller power signal; the controller power signal is determined based on the conversion of the power signal;

[0007] The locking signal includes one of the following:

[0008] The wake-up signal is at least used to control the voltage conversion module to turn on the output of the controller power supply signal;

[0009] The sleep signal is at least used to control the voltage conversion module to turn off the output of the controller power supply signal.

[0010] In combination with the first aspect, in an optional embodiment, the voltage conversion module includes a first voltage conversion module, which is configured to start or stop the conversion of the power supply signal to the controller power supply signal under the control of the lock control signal to turn on or off the output of the controller power supply signal.

[0011] In combination with the first aspect, in an optional embodiment, the voltage conversion module includes a second voltage conversion module configured to convert the power supply signal into the controller power supply signal, and turn on or off the output of the controller power supply signal under the control of the lock control signal.

[0012] In combination with the first aspect, in an optional implementation manner, the power supply lock control circuit further includes:

[0013] The lock control module is configured to generate the intermediate signal according to the reference signal and provide the intermediate signal to the enable control terminal to accelerate the response of the wake-up signal to control the voltage conversion module to output the controller power supply signal, and to maintain the voltage conversion module outputting the controller power supply signal; or, generate the sleep signal according to the trigger signal to control the voltage conversion module to shut down the output of the controller power supply signal.

[0014] In combination with the first aspect, in an optional implementation manner, the switch module includes a transistor module;

[0015] The transistor module includes a control terminal, a first signal terminal and a second signal terminal, and is configured to connect or disconnect the path between the first signal terminal and the second signal terminal under the control of the switching signal input to the control terminal, so as to turn on or off the output of the wake-up signal.

[0016] In combination with the first aspect, in an optional embodiment, the transistor module includes at least one of the following: a triode; a metal oxide semiconductor field effect transistor; an insulated gate bipolar transistor; a gate turn-off thyristor; a thyristor; a MOS controlled thyristor; an integrated gate commutated thyristor; or an electron injection enhanced gate transistor.

[0017] In combination with the first aspect, in an optional implementation manner, the transistor module includes a first transistor;

[0018] The first end of the first transistor is configured to obtain the power signal; the second end of the first transistor is connected to the enable control end and configured to output the wake-up signal; the control end of the first transistor is configured to obtain the switch signal.

[0019] In combination with the first aspect, in an optional embodiment, the switch module further includes at least one of the following: a first resistor; a second resistor; a third resistor;

[0020] A first end of the first resistor is configured to obtain the power signal, and a second end of the first resistor is connected to the control end of the first transistor;

[0021] The first end of the second resistor is configured to obtain the power signal, and the second end of the second resistor is connected to the first end of the first transistor;

[0022] A first end of the third resistor is configured to obtain the switching signal, and a second end of the third resistor is connected to the control end of the first transistor.

[0023] In combination with the first aspect, in an optional implementation manner, the lock control module includes a fourth resistor, a fifth resistor and a first diode;

[0024] The first end of the fourth resistor is configured to obtain the trigger signal, and the second end of the fourth resistor is respectively connected to the second end of the fifth resistor and the positive electrode of the first diode; the first end of the fifth resistor is configured to obtain the reference signal; the cathode of the first diode is configured to output the intermediate signal or the sleep signal.

[0025] In combination with the first aspect, in an optional implementation manner, the power supply lock control circuit further includes at least one of the following:

[0026] a first filtering module, connected to the enable control terminal and configured to filter the signal input to the enable control terminal;

[0027] a second filtering module, configured to filter the power signal input by the voltage conversion module;

[0028] The third filtering module is configured to filter the controller power supply signal output by the voltage conversion module.

[0029] In a second aspect, an embodiment of the present application provides a controller lock control circuit, the controller lock control circuit comprising:

[0030] Controller; and

[0031] The power supply lock control circuit as described in the first aspect is used to supply power to the controller.

[0032] In a third aspect, an embodiment of the present application provides a scooter, comprising the controller lock control circuit as described in the second aspect.

[0033] The beneficial effects of the technical solution provided by the embodiment of the present application include: through the switch module and the voltage conversion module, the output of the controller power supply signal can be turned on or off to start or stop the power supply to the controller, and the independent on-off control of the controller power supply is realized. Therefore, when an external fault occurs, or when the vehicle is not in use, or when it is necessary to turn off the output of the controller power supply signal to power off the controller, the output of the controller power supply signal can be turned off, the controller power supply can be turned off, and the power supply of the controller can be turned off, thereby reducing power consumption, improving safety, and extending the life of the device. In addition, when the controller power supply signal is output, the intermediate signal can be used to lock the level of the enable control terminal of the voltage conversion module, thereby maintaining the output of the controller power supply signal and improving the stability of the power supply.

[0034] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0036] Figure 1 A circuit diagram of a specific example of a power supply circuit in the related art;

[0037] Figure 2 This is a circuit diagram of Example 1 of the power supply lock control circuit in an embodiment of the present application;

[0038] Figure 3 This is a circuit diagram of Example 2 of the power supply lock control circuit in an embodiment of the present application;

[0039] Figure 4 This is a circuit diagram of Example 3 of the power supply lock control circuit in an embodiment of the present application;

[0040] Figure 5 This is a circuit diagram of Example 4 of the power supply lock control circuit in an embodiment of the present application;

[0041] Figure 6 This is a circuit diagram of a specific example of a controller lock control circuit in an embodiment of the present application. DETAILED DESCRIPTION

[0042] To make the technical solutions and beneficial effects of this application more clearly understood, the following detailed description is given by way of specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly illustrate the details of the local features. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application belongs.

[0043] The embodiments of the present application are not exhaustive, but are merely illustrative of some embodiments and are not intended to be a specific limitation on the scope of protection of the present application. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementations in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all of the steps in different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementations of other embodiments.

[0044] In each embodiment of the present application, unless otherwise specified or there is any logical conflict, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0045] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0046] In the embodiments of the present application, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., can mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article can be understood as a singular expression or a plural expression.

[0047] In the embodiments of the present application, "plurality" refers to two or more.

[0048] In some embodiments, the terms "at least one", "one or more", "a plurality of", "multiple" and the like can be used interchangeably.

[0049] The prefixes such as "first" and "second" in the embodiments of the present application are only used to distinguish different description objects and do not limit the position, order, priority, value or content of the description objects. For the statement of the description objects, please refer to the description in the context of the claims or embodiments, and no unnecessary restrictions should be imposed due to the use of prefixes. For example, the numerical value of the description object is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the numerical value of "device" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different.

[0050] In some embodiments, the term “signal” may refer to a voltage signal or a current signal.

[0051] In some embodiments, the term "connection" may indicate the transmission of electrical signals or data between a connected end and a connected end, and may be understood as "electrical connection," "communication connection," etc. A "connection" may be a direct connection between two components, an indirect connection established through other components, internal connectivity between two components, or any other possible connection form.

[0052] During the implementation of this application, the inventors discovered the following problems in the related art:

[0053] Figure 1 A circuit diagram of a specific example of a power supply circuit in the related art is shown. As shown in the figure, the input end of the power supply circuit 1000 is configured to obtain a power signal VBAT from a power supply, and the output end of the power supply circuit 1000 is configured to output a controller power supply signal VCTL to provide to the power supply end of the controller.

[0054] In this way, power supply circuit 1000 converts power signal VBAT into controller power signal VCTL and outputs it to the controller's power supply terminal. Consequently, as long as the vehicle's power supply is connected, for example, the battery is powered or there's power output, the controller is powered and operational. The controller's power supply cannot be independently turned on and off, and the controller's power supply cannot be disconnected. This causes the controller to continuously consume power from the power supply, increasing power consumption. Furthermore, the controller's constant operation reduces the device's service life.

[0055] To this end, the embodiment of the present application provides a power supply lock control circuit that can be used to power the controller in vehicles such as bicycles and scooters. Figure 2 The following is a circuit diagram of Example 1 of the power supply lock control circuit according to an embodiment of the present application. As shown in the figure, the power supply lock control circuit includes:

[0056] a switch module 10 configured to be turned on or off under the control of a switch signal KEY to control the output of a wake-up signal; and

[0057] The voltage conversion module 20 includes an enable control terminal EN. The voltage conversion module 20 is configured to obtain a power signal BATTERY and, under the control of a lock control signal obtained by the enable control terminal EN, turn on or off the output of the controller power signal VOUT to start or stop powering the controller. When the voltage conversion module 20 outputs the controller power signal VOUT, the enable control terminal EN is configured to input an intermediate signal V1 to keep the voltage conversion module 20 turning on the output of the controller power signal VOUT. The controller power signal VOUT is determined based on the conversion of the power signal BATTERY.

[0058] The locking signal includes one of the following:

[0059] The wake-up signal is at least used to control the voltage conversion module 20 to turn on the output of the controller power supply signal VOUT;

[0060] The sleep signal latch1 is at least used to control the voltage conversion module 20 to turn off the output of the controller power supply signal VOUT.

[0061] In the embodiment of the present application, the switch signal KEY can be used to control the switch module 10 to be turned on or off. When the enable control terminal EN receives a high level or low level wake-up signal, the voltage conversion module 20 turns on the output of the controller power supply signal VOUT.

[0062] Exemplarily, the output process of the controller power supply signal VOUT is as follows: one end of the switch module 10 can input a high level, such as the power supply signal BATTERY provided by the battery or other power supply signals in the circuit. When the switch signal KEY controls the switch module 10 to be turned on, the other end of the switch module 10 can output a level corresponding to the high level, that is, a wake-up signal (the level of the wake-up signal can be determined according to the power supply signal BATTERY); when the switch signal KEY controls the switch module 10 to be turned off, the other end of the switch module 10 does not output a level corresponding to the high level or outputs a low level. Then, when the wake-up signal is high, it can control the voltage conversion module 20 to turn on the output of the controller power supply signal VOUT and start the power supply to the controller. At this time, the controller is powered on and the operation of the controller is started. On the contrary, when the wake-up signal is low, it can turn off the output of the controller power supply signal VOUT, and the controller is powered off.

[0063] Furthermore, when the voltage conversion module 20 outputs the controller power signal VOUT, the controller is powered on and the enable control terminal EN inputs the intermediate signal V1, e.g., a high level, which can lock the potential of the enable control terminal EN, thereby maintaining the output of the controller power signal VOUT. At this point, the switch signal KEY can no longer be provided to the switch module 10, and the switch module 10 can be disconnected. The intermediate signal V1 can be used to maintain the output of the controller power signal VOUT, but this is not limited to this. The switch signal KEY can also be provided to the switch module 10 at all times. For example, during the output of the controller power signal VOUT, the switch signal KEY and the intermediate signal V1 can be present simultaneously to maintain a stable output of the controller power signal VOUT.

[0064] For example, the wake-up signal is not limited to a high level, but can also be a low level. Accordingly, the intermediate signal is not limited to a high level, but can also be a low level. For example, one end of the switch module 10 can input a low level, such as grounding. When the switch signal KEY controls the switch module 10 to be turned on, the other end of the switch module 10 can output a level corresponding to the low level, that is, the wake-up signal; when the switch signal KEY controls the switch module 10 to be turned off, the other end of the switch module 10 does not output the low level, or outputs a high level, or is in a high-impedance state. Then, when the wake-up signal is low and the intermediate signal is low, the control output controller power supply signal VOUT can also be achieved and maintained. On the contrary, when the wake-up signal is high, the output of the controller power supply signal VOUT can be turned off, and the controller is powered off.

[0065] In an embodiment of the present application, the potential of the enable control terminal EN of the voltage conversion module 20 can be pulled down or raised by the sleep signal latch1, so that when an external fault occurs, the voltage conversion module 20 can be controlled to turn off the output of the controller power supply signal VOUT, and the controller is powered off. For example, when the wake-up signal is high to control the voltage conversion module 20 to turn on the output of the controller power supply signal VOUT, the sleep signal latch1 can be low, thereby pulling down the potential of the enable control terminal EN to turn off the output of the controller power supply signal VOUT. Alternatively, when the wake-up signal is low to control the voltage conversion module 20 to turn on the output of the controller power supply signal VOUT, the sleep signal latch1 can be high, thereby pulling up the potential of the enable control terminal EN to turn off the output of the controller power supply signal VOUT.

[0066] In this way, the embodiment of the present application, through the switch module and the voltage conversion module, can turn on or off the output of the controller power supply signal to start or stop the power supply to the controller, thereby achieving independent on-off control of the controller power supply. Therefore, when an external fault occurs, when the vehicle is not in use, or when it is necessary to turn off the output of the controller power supply signal to power off the controller, the output of the controller power supply signal can be turned off, turning off the controller power supply, reducing power consumption, improving safety, and extending the life of the device. In addition, the intermediate signal can lock the level of the enable control terminal of the voltage conversion module when the controller power supply signal is output, thereby maintaining the output of the controller power supply signal and improving power supply stability.

[0067] In the embodiment of the present application, the high level and the low level may be relative values ​​and are not limited to absolute values.

[0068] In some possible implementations, the switch module 10 may be connected to an input device. Exemplarily, the input device may be a switch device. For example, the switch device may include at least one of the following: a key switch; a rotary switch; a start button; a toggle switch; a micro switch; or a membrane switch. Operating the switch device generates a switch signal KEY, thereby controlling the on / off state of the switch module 10.

[0069] For example, the input device may be a touch layer covered on the display or a touch panel. Then, by operating the touch layer or the touch panel, a switch signal KEY may be generated to control the on and off of the switch module 10.

[0070] In some possible implementations, the voltage conversion module 20 can adopt a step-down DC-DC power supply chip, a DC-DC step-down regulator, etc., which can realize the voltage conversion of the power signal BATTERY to the controller power supply signal VOUT. Among them, the voltage conversion can be turned on or off under the control of the lock control signal, thereby realizing the opening or closing of the output of the controller power supply signal VOUT; it can also be directly converting the power signal BATTERY into the controller power supply signal VOUT, and then turning on or off the output of the controller power supply signal VOUT under the control of the lock control signal, but it is not limited to this and can also be set according to actual needs. For example, the control of the voltage conversion can be controlled by a logic control circuit. The logic control circuit can refer to the prior art and will not be described in detail in this application.

[0071] In an optional implementation, the voltage conversion module 20 may obtain the power signal BATTERY through the input terminal IN.

[0072] In an optional embodiment, the voltage conversion module includes a first voltage conversion module configured to start or stop the conversion of the power supply signal to the controller power supply signal under the control of the lock control signal, so as to turn on or off the output of the controller power supply signal.

[0073] In an optional embodiment, the voltage conversion module includes a second voltage conversion module configured to convert the power supply signal into the controller power supply signal, and turn on or off the output of the controller power supply signal under the control of the lock control signal.

[0074] In this way, compared with the second voltage conversion module, the first voltage conversion module can shorten the time for executing voltage conversion and reduce the power consumption during the voltage conversion process by converting the power supply signal to the controller power supply signal under the control of the lock control signal, thereby further reducing power consumption.

[0075] Figure 3 The circuit diagram of Example 2 of the power supply lock control circuit in the embodiment of the present application is shown. As shown in the figure, in an optional embodiment, the power supply lock control circuit further includes:

[0076] The latch control module 30 is configured to generate an intermediate signal V1 based on the reference signal VDD1 and provide the intermediate signal V1 to the enable control terminal EN to accelerate the response of the wake-up signal to control the voltage conversion module 20 to output the controller power supply signal VOUT, and to maintain the voltage conversion module 20 outputting the controller power supply signal VOUT; or, generate the sleep signal latch1 based on the trigger signal latch2 to control the voltage conversion module 20 to shut down the output of the controller power supply signal.

[0077] In this way, an intermediate signal V1 is generated from a reference signal VDD1. Reference signal VDD1 can serve as a circuit power signal, thereby improving the stability of the intermediate signal and achieving a stable output of the controller power signal. Furthermore, by applying the intermediate signal to the enable control terminal, the response speed of the voltage conversion module outputting the controller power signal can be increased, achieving a rapid response. Furthermore, in response to an external trigger signal, such as in the event of an external fault, when the vehicle is not in use, or when the controller needs to be shut down, a sleep signal can be generated to promptly shut down the controller power supply, reducing power consumption and improving safety.

[0078] In the embodiment of the present application, the intermediate signal V1 is generated based on the reference signal VDD1, and the sleep signal latch1 is generated based on the trigger signal latch2. Both can be generated in a manner that is configured according to actual needs. In some possible implementations, the generation methods can include at least one of the following: a voltage divider circuit; a logic control circuit; or a switch circuit.

[0079] Figure 4 The circuit diagram of Example 3 of the power supply lock control circuit in the embodiment of the present application is shown. As shown in the figure, in an optional embodiment, the switch module 10 includes a transistor module;

[0080] The transistor module includes a control terminal, a first signal terminal and a second signal terminal, and is configured to connect or disconnect the path between the first signal terminal and the second signal terminal under the control of the switching signal input to the control terminal, so as to turn on or off the output of the wake-up signal.

[0081] In an optional embodiment, the transistor module includes at least one of the following transistors: a bipolar junction transistor (BJT); a metal oxide semiconductor field effect transistor (MOS transistor); an insulated gate bipolar transistor (IGBT); a gate turn-off thyristor (GTO); a silicon controlled thyristor (SCR); a MOS controlled thyristor (MCT); an integrated gate commutated thyristor (IGCT); and an electron injection enhanced gate transistor (IEGT).

[0082] In some possible implementations, the transistor module may be formed by a single transistor, or may be formed by a transistor combination circuit formed by connecting multiple transistors in series and / or in parallel.

[0083] In an optional embodiment, the transistor module includes a first transistor Q1;

[0084] The first end of the first transistor Q1 is configured to obtain the power signal BATTERY; the second end of the first transistor Q1 is connected to the enable control end EN and configured to output the wake-up signal; the control end of the first transistor Q1 is configured to obtain the switch signal KEY.

[0085] For example, the first transistor Q1 may be a PNP transistor. Those skilled in the art will appreciate that the first transistor Q1 may also be at least one of an NPN transistor, a MOS transistor, an SCR, a GTO, a MOSFET, an IGBT, an MCT, a SIT, or the like. If the first transistor Q1 is a PNP transistor, then the first terminal of the first transistor Q1 may be an emitter, and correspondingly, the second terminal may be a collector.

[0086] In an optional embodiment, the switch module 10 further includes at least one of the following: a first resistor R1; a second resistor R2; a third resistor R3;

[0087] A first end of the first resistor R1 is configured to obtain the power signal BATTERY, and a second end of the first resistor R1 is connected to the control end of the first transistor Q1;

[0088] A first end of the second resistor R2 is configured to obtain the power signal BATTERY, and a second end of the second resistor R2 is connected to the first end of the first transistor Q1;

[0089] A first end of the third resistor R3 is configured to obtain the switch signal KEY, and a second end of the third resistor R3 is connected to the control end of the first transistor Q1.

[0090] In some possible implementations, a first resistor R1 is connected between a terminal providing a power signal BATTERY and a base of a PNP transistor. A second resistor R2 is connected between a terminal providing a power signal BATTERY and an emitter of the PNP transistor. A third resistor R3 is connected between a terminal providing a switch signal KEY and a base of the PNP transistor.

[0091] In this way, the power supply signal BATTERY can be divided by the first resistor, the second resistor, or the third resistor, thereby achieving normal driving of the first transistor, reducing interference from surges, static electricity, etc., and improving the stability of the controller power supply signal VOUT output.

[0092] In an optional embodiment, the lock control module 20 includes a fourth resistor R4, a fifth resistor R5 and a first diode D1;

[0093] The first end of the fourth resistor R4 is configured to obtain the trigger signal latch2, and the second end of the fourth resistor R4 is respectively connected to the second end of the fifth resistor R5 and the anode of the first diode D1; the first end of the fifth resistor R5 is configured to obtain the reference signal VDD1; the cathode of the first diode D1 is configured to output the intermediate signal V1 or the sleep signal latch1.

[0094] In an embodiment of the present application, the voltage division of the fourth resistor and the fifth resistor is used to provide an intermediate signal and a sleep signal based on the reference signal and the trigger signal, respectively. For example, after the switch signal KEY is pulled low, the enable control terminal EN becomes a high level, thereby outputting the controller power supply signal VOUT, for example, 12V. At this time, the controller is powered on, locks the sleep signal latch1 providing terminal and enables the control terminal EN to maintain a high level, so that the VOUT output is always maintained. When the controller needs to be powered off, the VOUT output can be turned off by pulling down the sleep signal latch1, thereby turning off the controller power supply, reducing power consumption, and improving safety and device life. In addition, through the first diode, it is possible to prevent current backflow and stabilize the voltage of the intermediate signal and the sleep signal, thereby improving reliability and stability.

[0095] In an embodiment of the present application, resistors, such as the first resistor, the second resistor, the third resistor, the fourth resistor, the fifth resistor, etc., can be a single resistor, or a plurality of resistors connected in series and / or in parallel, or can also include a passive resistor network or an active resistor network of resistors, capacitors, inductors, etc.

[0096] Figure 5 The circuit diagram of Example 4 of the power supply lock control circuit in the embodiment of the present application is shown. As shown in the figure, in an optional embodiment, the power supply lock control circuit further includes at least one of the following:

[0097] A first filtering module 40, connected to the enable control terminal EN, configured to filter the signal input to the enable control terminal EN;

[0098] A second filtering module 50 is configured to filter the power signal BATTERY input by the voltage conversion module 20;

[0099] The third filtering module 60 is configured to filter the controller power supply signal VOUT output by the voltage conversion module 20 .

[0100] In this way, the anti-interference capability of the power supply lock control circuit can be improved through the first filter module, the second filter module, or the third filter module.

[0101] In the embodiments of the present application, the filtering modules of the first filtering module, the second filtering module, and the third filtering module can be configured according to actual needs. For example, each filtering module can include a sixth resistor R6 and a first capacitor C1 connected in parallel, but is not limited to this. The filtering module can also include a passive filtering circuit and an active filtering circuit. For example, the passive filtering circuit can adopt at least one of an RC circuit, an LC circuit, and an RLC circuit. The active filtering circuit can be configured using an integrated operational amplifier.

[0102] The embodiment of the present application also provides a controller lock control circuit, Figure 6 A circuit diagram of a specific example of a controller lock control circuit in an embodiment of the present application is shown. As shown in the figure, the controller lock control circuit includes:

[0103] controller 200; and

[0104] The power supply lock control circuit 100 as described in the above embodiment is used to supply power to the controller.

[0105] Thus, the embodiment of the present application achieves independent on-off control of the controller's power supply by outputting a controller power signal to the controller through the power lock control circuit. When the controller power supply needs to be shut down, the output of the controller power signal can be turned off, thereby reducing power consumption, improving safety, and extending device life. Furthermore, when the controller power signal is output, the voltage conversion module's enable control terminal level can be locked, thereby maintaining the output of the controller power signal and improving power supply stability.

[0106] In some possible implementations, the controller can be a circuit with signal processing capabilities. In one implementation, the controller can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the controller can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the above-mentioned hardware circuits are fixed or reconfigurable. For example, the controller is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the controller loading a configuration document to implement the hardware circuit configuration can be understood as the process of the controller loading instructions to implement the functions described by the instructions. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0107] An embodiment of the present application further provides a scooter, comprising the controller lock control circuit as described in the above embodiment.

[0108] In this way, the embodiment of the present application reduces the power consumption of the scooter and improves safety by using the controller to lock the circuit. It also improves the stability of the scooter's operation through stable power supply.

[0109] Exemplarily, the scooter may be an electric two-wheeled scooter.

[0110] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations of the claims. Various modifications and variations may be made to the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form additional embodiments of the present application that may not be explicitly described. Therefore, the above embodiments merely illustrate several implementations of the present application and do not limit the scope of protection of the patent application.

Claims

1. A power supply lock control circuit, characterized in that: The power supply lock control circuit includes: a switch module configured to be turned on or off under the control of a switch signal to control the output of a wake-up signal; and A voltage conversion module includes an enable control terminal; the voltage conversion module is configured to obtain a power signal and, under the control of a lock control signal obtained by the enable control terminal, turn on or off the output of a controller power signal to start or stop power supply to the controller; wherein, when the voltage conversion module outputs the controller power signal, the enable control terminal is configured to input an intermediate signal to cause the voltage conversion module to keep turning on the output of the controller power signal; the controller power signal is determined based on the conversion of the power signal; The locking signal includes one of the following: The wake-up signal is at least used to control the voltage conversion module to turn on the output of the controller power supply signal; The sleep signal is at least used to control the voltage conversion module to turn off the output of the controller power supply signal.

2. The power supply lock control circuit according to claim 1, characterized in that: The voltage conversion module includes a first voltage conversion module configured to start or stop the conversion of the power supply signal to the controller power supply signal under the control of the lock control signal, so as to turn on or off the output of the controller power supply signal.

3. The power supply lock control circuit according to claim 1, characterized in that: The voltage conversion module includes a second voltage conversion module configured to convert the power supply signal into the controller power supply signal and turn on or off the output of the controller power supply signal under the control of the lock control signal.

4. The power supply lock control circuit according to claim 1, characterized in that: The power supply lock control circuit further includes: The lock control module is configured to generate the intermediate signal according to the reference signal and provide the intermediate signal to the enable control terminal to accelerate the response of the wake-up signal to control the voltage conversion module to output the controller power supply signal, and to maintain the voltage conversion module outputting the controller power supply signal; or, generate the sleep signal according to the trigger signal to control the voltage conversion module to shut down the output of the controller power supply signal.

5. The power supply lock control circuit according to claim 1, characterized in that: The switch module includes a transistor module; The transistor module includes a control terminal, a first signal terminal and a second signal terminal, and is configured to connect or disconnect the path between the first signal terminal and the second signal terminal under the control of the switching signal input to the control terminal, so as to turn on or off the output of the wake-up signal.

6. The power supply lock control circuit according to claim 5, characterized in that: The transistor module includes at least one of the following: a triode; a metal oxide semiconductor field effect transistor; an insulated gate bipolar transistor; a gate turn-off thyristor; a thyristor; a MOS controlled thyristor; an integrated gate commutated thyristor; and an electron injection enhanced gate transistor.

7. The power supply lock control circuit according to claim 5, characterized in that: The transistor module includes a first transistor; The first end of the first transistor is configured to obtain the power signal; the second end of the first transistor is connected to the enable control end and configured to output the wake-up signal; the control end of the first transistor is configured to obtain the switch signal.

8. The power supply lock control circuit according to claim 7, characterized in that: The switch module further includes at least one of the following: a first resistor; a second resistor; a third resistor; A first end of the first resistor is configured to obtain the power signal, and a second end of the first resistor is connected to the control end of the first transistor; The first end of the second resistor is configured to obtain the power signal, and the second end of the second resistor is connected to the first end of the first transistor; A first end of the third resistor is configured to obtain the switching signal, and a second end of the third resistor is connected to the control end of the first transistor.

9. The power supply lock control circuit according to claim 4, characterized in that: The lock control module includes a fourth resistor, a fifth resistor and a first diode; The first end of the fourth resistor is configured to obtain the trigger signal, and the second end of the fourth resistor is respectively connected to the second end of the fifth resistor and the positive electrode of the first diode; the first end of the fifth resistor is configured to obtain the reference signal; the cathode of the first diode is configured to output the intermediate signal or the sleep signal.

10. The power supply lock control circuit according to any one of claims 1 to 9, characterized in that: The power supply lock control circuit further includes at least one of the following: a first filtering module, connected to the enable control terminal and configured to filter the signal input to the enable control terminal; a second filtering module, configured to filter the power signal input by the voltage conversion module; The third filtering module is configured to filter the controller power supply signal output by the voltage conversion module.

11. A controller lock control circuit, characterized in that: The controller lock control circuit includes: Controller; and The power supply lock control circuit according to any one of claims 1 to 10, used to supply power to the controller.

12. A scooter, characterized in that: The controller lock control circuit comprises the controller lock control circuit as claimed in claim 11.

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