Bracelet low-power-consumption on-off circuit and bracelet

Abstract

The utility model relates to a low power consumption circuit, and discloses a wristband low power consumption on-off circuit and a wristband, the wristband low power consumption on-off circuit comprises a battery end, a boost module, a boost control module and a master control module, and the boost control module comprises a diode, a button control loop and a master control loop; wherein the battery end is electrically connected with the input end of the boost control module, and the battery end is also electrically connected with the anode of the diode through the key control loop; the output end of the boosting module is electrically connected with the power supply end of the main control module, and the output end of the boosting module is also electrically connected with the anode of the diode through a main control loop; the cathode of the diode is electrically connected with the enabling end of the boosting module; the data end of the main control module is electrically connected with the conduction control end of the main control loop; and a self-resetting key is arranged between the input end and the output end of the key control loop. The utility model aims to provide a low-power-consumption on-off circuit of a bracelet.

Description

Technical Field

[0001] This utility model relates to the field of low-power circuits, and in particular to a low-power power-on / off circuit for a wristband and the wristband itself. Background Technology

[0002] With the rapid development of wearable device technology, fitness trackers, as a convenient and practical wearable device, have become popular among consumers. They integrate multiple functions, such as device control, activity tracking, sleep monitoring, message notifications, and health management, bringing great convenience to users in both fitness and daily life.

[0003] Traditional smart band power-on / off circuits often lack sufficient consideration for power consumption optimization in their design. Some circuits employ complex structures and numerous electronic components, which consume additional power during operation. For example, the control chip in some power-on / off circuits maintains high power consumption even in standby mode, leading to unnecessary battery drain. Even when the band is off, due to poor circuit design, a small current continues to consume battery energy, significantly shortening the band's battery life. For users, frequent charging is not only inconvenient but also affects the normal use of the band, especially when traveling or unable to charge for extended periods, where insufficient battery life becomes even more pronounced.

[0004] The above content is only used to help understand the technical solution of this utility model and does not represent an admission that the above content is prior art. Utility Model Content

[0005] This utility model proposes a low-power power-on / off circuit for a wristband and a wristband in general, aiming to provide a low-power power-on / off circuit for a wristband.

[0006] To achieve the above objectives, this utility model proposes a low-power power-on / off circuit for a wristband, comprising: a battery terminal, a boost module, a boost control module, and a main control module. The boost control module includes a diode, a button control circuit, and a main control circuit. The battery terminal is electrically connected to the input terminal of the boost control module, and is also electrically connected to the anode of the diode via the button control circuit. The output terminal of the boost module is electrically connected to the power supply terminal of the main control module, and is also electrically connected to the anode of the diode via the main control circuit. The cathode of the diode is electrically connected to the enable terminal of the boost module. The data terminal of the main control module is electrically connected to the conduction control terminal of the main control circuit. A self-reset button is provided between the input and output terminals of the button control circuit.

[0007] The output voltage range of the battery compartment connected to the battery terminal is 0.8~1.6V.

[0008] Optionally, the battery compartment is provided with an external cover.

[0009] Optionally, the output voltage of the boost module is 3.3V.

[0010] Optionally, a first resistor and a self-reset button are sequentially provided between the input and output terminals of the button control circuit.

[0011] Optionally, the main control circuit includes a second resistor, a third resistor, a fourth resistor, and an NMOS transistor;

[0012] The second resistor is connected between the input terminal of the main control circuit and the drain of the NMOS transistor, and the conduction control terminal of the main control circuit is located between the second resistor and the drain of the NMOS transistor.

[0013] The third resistor is connected between the output terminal of the main control circuit and the gate of the NMOS transistor;

[0014] The fourth resistor is connected between the gate and source of the NMOS transistor, and the source of the NMOS transistor is also grounded.

[0015] This invention further proposes a wristband, including the low-power power-on / off circuit of the wristband as described above.

[0016] The beneficial effects of this utility model are as follows: It proposes a low-power power-on / off circuit for a wristband. The various parts of the circuit work together through specific electrical connections. Through reasonable circuit design and workflow, it can effectively control the power-on and power-off of the wristband and reduce power consumption and extend battery life in the power-off state. Attached Figure Description

[0017] Figure 1 This is an architectural diagram of an embodiment of the low-power power-on / off circuit of the wristband of this utility model;

[0018] Figure 2 This is a circuit diagram of an embodiment of the boost switch module of this utility model.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0023] Furthermore, descriptions involving terms such as "first" and "second" in this utility model are for descriptive purposes only (e.g., to distinguish identical or similar elements) and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of those features. Additionally, technical solutions from different embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this utility model.

[0024] This utility model proposes a low-power power-on / off circuit for a wristband, referring to... Figure 1 The low-power power-on / off circuit of the bracelet includes a battery terminal, a boost module, a boost control module, and a main control module. The boost control module includes a diode, a button control circuit, and a main control circuit. The battery terminal is electrically connected to the input terminal of the boost control module and is also electrically connected to the anode of the diode via the button control circuit. The output terminal of the boost module is electrically connected to the power supply terminal of the main control module and is also electrically connected to the anode of the diode via the main control circuit. The cathode of the diode is electrically connected to the enable terminal of the boost module. The data terminal of the main control module is electrically connected to the conduction control terminal of the main control circuit. A self-reset button is provided between the input and output terminals of the button control circuit.

[0025] This embodiment proposes a low-power power-on / off circuit for a wristband, aiming to achieve low power consumption during the power-on / off process. The entire circuit mainly consists of four key parts: the battery terminal, the boost module, the boost control module, and the main control module. The boost control module is further subdivided into diodes, a button control circuit, and a main control circuit. These parts work together through specific electrical connections to control the wristband's power-on / off operation.

[0026] The battery terminal is the power source for the entire circuit, providing the necessary electrical energy to other modules within the circuit. Its main function is to provide input voltage to the boost control module, and it also establishes an electrical connection with the button control circuit, providing power support for the button control circuit.

[0027] The output of the boost module is electrically connected to the power supply of the main control module. This means that the boost module delivers the processed voltage to the main control module, providing a suitable voltage for its normal operation. In addition, the output of the boost module is also electrically connected to the main control circuit.

[0028] The main function of a boost module is to increase the voltage supplied by the battery to meet the specific voltage requirements of the main control module and other components. For example, some functional modules in a smart bracelet may require a higher voltage than the battery output voltage to operate normally, and the boost module can perform this voltage conversion task.

[0029] The anode of the diode is connected to both the button control circuit and the main control circuit, while the cathode is electrically connected to the enable terminal of the boost module. The diode acts as a unidirectional conductor in the circuit, controlling whether to provide a signal to the enable terminal of the boost module based on signals from the button control circuit or the main control circuit, thus determining whether the boost module starts operating. When there is a suitable voltage signal at the anode, the diode conducts, transmitting the signal to the enable terminal of the boost module, causing it to start operating; conversely, the boost module stops operating when no suitable voltage signal is received.

[0030] The input terminal of the button control circuit is electrically connected to the battery terminal, and the output terminal is connected to the anode of the diode. A self-reset button is located between the input and output terminals of the button control circuit. The button control circuit is mainly used to implement manual power on / off functions. When the user presses the self-reset button, the voltage at the battery terminal is transmitted to the anode of the diode through the button control circuit, causing the diode to conduct and triggering the boost module to start working, thus powering on the bracelet. When the user releases the self-reset button, the button returns to its initial state, the button control circuit disconnects, and if there is no signal from the main control circuit, the boost module will stop working, achieving a power-off operation; conversely, if there is a signal from the main control circuit, the boost module will continue to work.

[0031] The input terminal of the main control circuit is connected to the output terminal of the boost module, and the output terminal is connected to the anode of the diode. The data terminal of the main control module is electrically connected to the conduction control terminal of the main control circuit.

[0032] The main control loop is used to achieve automatic shutdown or other shutdown control based on commands from the main control module. The main control module can send control signals to the on / off control terminal of the main control loop through its data terminal to control the on / off state of the main control loop. When the main control loop is on, the voltage at the output terminal of the boost module is transmitted to the anode of the diode through the main control loop, causing the diode to conduct and maintaining the working state of the boost module; when the main control module sends a shutdown command, the main control loop is off, the boost module stops working, and the shutdown is achieved.

[0033] The power supply terminal of the main control module is electrically connected to the output terminal of the boost module to obtain the voltage required for operation; the data terminal of the main control module is electrically connected to the conduction control terminal of the main control circuit to send control signals to the main control circuit.

[0034] The main control module is the core control unit of the entire bracelet circuit. It can intelligently control the power-on and power-off process according to the bracelet's various functional requirements and user operations. For example, when the bracelet detects no user operation for a period of time, the main control module can send a power-off command, causing the boost module to stop working through the main control circuit, achieving low-power power-off. When the bracelet receives a specific wake-up signal, the main control module can control the main control circuit to conduct, causing the boost module to start working, thus powering on the bracelet.

[0035] Example of the low-power power-on / off circuitry of the wristband:

[0036] (1) Power-on process

[0037] When the user presses the self-reset button, the battery voltage is transmitted to the anode of the diode through the button control circuit. The diode conducts, sending a signal to the enable terminal of the boost module, which then starts working. The boost module increases the battery voltage and outputs a suitable voltage to the power supply terminal of the main control module, which then starts up. After startup, the main control module sends a signal to the conduction control terminal of the main control circuit through its data terminal, enabling the main control circuit to conduct. This ensures that even if the user releases the self-reset button, disengaging the button control circuit, the voltage at the boost module's output terminal can still maintain the diode's conduction state through the main control circuit, ensuring continuous operation of the boost module.

[0038] (2) Shutdown process

[0039] When the user presses the self-reset button again, the main control module detects the electrical change through the data terminal and can send a shutdown signal to the conduction control terminal of the main control circuit through its data terminal, causing the main control circuit to disconnect; or, the main control module detects that the shutdown conditions are met (such as timed shutdown, long-term inactivity, etc.) and sends a shutdown signal to the conduction control terminal of the main control circuit through its data terminal, causing the main control circuit to disconnect.

[0040] Because the main control circuit is disconnected, the diode anode loses the voltage signal from the main control circuit. When the user releases the self-reset button (if the button is still pressed), the button control circuit is also disconnected, the diode is cut off, the enable terminal of the boost module loses the signal, the boost module stops working, the main control module shuts down due to loss of power, and the entire bracelet enters a low-power state.

[0041] Through the circuit design and workflow described above, the low-power power-on / off circuit of this wristband can effectively control the wristband's power-on / off state, reduce power consumption in the power-off state, and extend the wristband's battery life.

[0042] Because the boost module's output cannot be unloaded during boosting, it must be directly connected to the battery, which limits the circuit design. However, despite this limitation, this embodiment cleverly designs the boost control module and its circuits, ensuring that core functions such as power-on / off control are not sacrificed. Whether manually pressing the self-reset button to power on or off, or the main control module automatically powering off based on conditions, both functions are implemented normally and stably, guaranteeing the wristband's basic usability.

[0043] Moreover, this design, while meeting the specific requirements of the boost module, also provides flexibility for subsequent circuit optimization and functional expansion. For example, the parameters and performance of the diodes, button control circuits, and main control circuits can be further optimized in the boost control module to improve the response speed and stability of power-on and power-off; more functional modules can also be added based on the main control module without worrying that the limitation of the boost module being directly connected to the battery terminal will hinder the implementation of new functions.

[0044] In addition, the diode restricts the reverse circuit from the main control module to the battery, protecting both the battery and the main control module; moreover, the self-reset button is easier to integrate with modern electronic control technology compared to the old-fashioned DIP switch type button.

[0045] In one embodiment, a low-power power-on / off circuit for a wristband is proposed. The various parts of the circuit work together through specific electrical connections. Through reasonable circuit design and workflow, the power-on / off of the wristband can be effectively controlled, and power consumption can be reduced and battery life extended when the wristband is off.

[0046] The bracelet's low-power power-on / off circuit features a well-designed and efficient workflow that effectively controls power on / off. When powered off, the boost module stops working, putting the bracelet into a low-power state and significantly extending battery life. While the boost module is directly connected to the battery, the clever design of each module and circuit ensures that core functions such as manual and automatic power on / off remain stable and functional. Furthermore, the circuit design is flexible, facilitating component parameter optimization, improving response stability, and allowing for the expansion of new functions based on the main control module.

[0047] In one embodiment, based on the above embodiment, the output voltage range of the battery compartment connected to the battery terminal is 0.8~1.6V.

[0048] Optionally, the battery compartment can be a single-cell battery compartment, which can accept 0.8~1.6V dry batteries and use low-voltage power supply.

[0049] Optionally, the battery compartment is equipped with an external cover, which allows users to easily open and replace the battery, such as when the bracelet is no longer in use.

[0050] Optionally, the output voltage of the boost module is 3.3V.

[0051] In one embodiment, based on the above embodiments, referring to Figure 2 Between the input and output terminals of the button control circuit, a first resistor R1 and a self-reset button S1 are sequentially provided.

[0052] Optionally, the main control circuit includes a second resistor R2, a third resistor R3, a fourth resistor R4, and an NMOS transistor Q1;

[0053] The second resistor R2 is connected between the input terminal of the main control circuit and the drain of the NMOS transistor Q1, and the conduction control terminal of the main control circuit is located between the second resistor R2 and the drain of the NMOS transistor Q1.

[0054] The third resistor R3 is connected between the output terminal of the main control circuit and the gate of the NMOS transistor Q1;

[0055] The fourth resistor R4 is connected between the gate and source of NMOS transistor Q1, and the source of NMOS transistor Q1 is also grounded.

[0056] In the normal conduction state of the main control circuit, the NMOS transistor Q1 is turned on according to the control signal of its gate. The input current flows from the input terminal of the main control circuit through the second resistor R2, the NMOS transistor Q1, the fourth resistor R4, and the third resistor R3 to the output terminal, and then through the diode D1 to the enable terminal of the boost module.

[0057] When the main control module needs to disconnect the main control loop, it needs to lower the voltage at the data terminal. (For example, within the control module, the data terminal connected to the main control loop can be connected to another data terminal grounded through a resistor. This connection causes the data terminal voltage to drop rapidly because it forms a path with the ground terminal through the resistor, allowing charge to flow to the lower-potential ground terminal, thus lowering the data terminal voltage.) Once the data terminal voltage is lowered, a significant potential difference is created between the data terminal and the drain of the NMOS transistor Q1. Based on the characteristic that current always flows from high to low potential, the input current is driven by this potential difference and tends to flow towards the ground terminal, thus bypassing the NMOS transistor Q1 and flowing through the ground terminal, thereby disconnecting the main control loop.

[0058] This utility model further proposes a wristband, which includes a low-power power-on / off circuit. The specific structure of the low-power power-on / off circuit is as described in the above embodiments. Since this wristband adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0059] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A low-power switch-off circuit of a bracelet, characterized in that, The application relates to a low-power-consumption switching-off circuit comprising a battery end, a voltage-boosting module, a voltage-boosting control module and a main control module, wherein the voltage-boosting control module comprises a diode, a key control circuit and a main control circuit; the battery end is electrically connected with the input end of the voltage-boosting control module, and the battery end is also electrically connected with the anode of the diode through the key control circuit; the output end of the voltage-boosting module is electrically connected with the power supply end of the main control module, and the output end of the voltage-boosting module is also electrically connected with the anode of the diode through the main control circuit; the cathode of the diode is electrically connected with the enable end of the voltage-boosting module; the data end of the main control module is electrically connected with the conduction control end of the main control circuit; and a self-resetting key is arranged between the input end and the output end of the key control circuit. The output voltage range of the battery compartment connected with the battery end is 0.8-1.6V.

2. The low power switching circuit of the bracelet according to claim 1, wherein, The battery compartment is provided with an external compartment cover.

3. The low power switching circuit of the bracelet according to claim 2, wherein, The output voltage of the voltage-boosting module is 3.3V.

4. The low power switch circuit of a bracelet according to any one of claims 1-3, wherein, A first resistor and a self-resetting key are sequentially arranged between the input end and the output end of the key control circuit.

5. The low power switching circuit of the bracelet according to claim 1, wherein, The main control circuit comprises a second resistor, a third resistor, a fourth resistor and an NMOS tube; 6. The low power switch circuit of the bracelet according to claim 1 or 5, wherein, The second resistor is connected between the input end of the main control circuit and the drain of the NMOS tube, and the conduction control end of the main control circuit is arranged between the second resistor and the drain of the NMOS tube; The third resistor is connected between the output end of the main control circuit and the gate of the NMOS tube; The fourth resistor is connected between the gate and the source of the NMOS tube, and the source of the NMOS tube is also grounded. The application further discloses a low-power-consumption switching-off circuit comprising the bracelet.

7. A bracelet, characterized in that ​

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