A power supply battery switch

Abstract

This application discloses a battery switch, relating to the field of power switch technology. The battery switch includes: an input power supply, a system power supply, a switching unit, and a system microcontroller. The input power supply is used to supply power to a load; the system power supply is used to supply power to the system microcontroller; the switching unit is used to control the battery switch to be on and off; the system microcontroller is used to detect the switching state of the switching unit and control the supply of power from the input power supply according to the switching state; the switching state includes a short press state and a long press state. The system microcontroller can control the supply of power from the input power supply according to the switching state, that is, it can suppress the supply of power from the input power supply when the switch state is off, that is, in standby mode, thereby effectively reducing energy consumption during standby.

Description

Technical Field

[0001] This utility model relates to the field of power switch technology, and more specifically to a battery power supply switch. Background Technology

[0002] For products powered by internal batteries, in order to improve battery life, it is necessary to reduce the power consumption of the product in standby mode. Therefore, a switch can be added at the source of the power supply battery.

[0003] Currently, there are two solutions. One is to add a physical or electronic switch to the battery power supply head to turn off the battery power supply to the PCBA, but the hardware cost of this solution is too high. The other is to design software or hardware to put the chips on the PCBA in the lowest power consumption state, but this solution takes a long time to design and debug and requires a lot of time cost. Therefore, there is an urgent need for a power supply battery switch that can overcome the above defects. Utility Model Content

[0004] The purpose of this invention is to provide a power supply battery switch, in which the system microcontroller can control the power supply of the input power source according to the switch state. That is, when the switch state is off, i.e. in standby mode, the power supply of the input power source can be suppressed, thereby effectively reducing energy consumption during standby.

[0005] To achieve the above objectives, this utility model provides a power supply battery switch, which includes: an input power supply, a system power supply, a switching unit, and a system microcontroller;

[0006] The input power supply is used to supply power to the load;

[0007] The system power supply is used to power the system microcontroller;

[0008] The switching unit is used to control the power supply battery switch to be turned on and off;

[0009] The system microcontroller is used to detect the switching state of the switching unit and control the power supply of the input power source according to the switching state; the switching state includes a short press state and a long press state.

[0010] In another embodiment, the power supply battery switch further includes a MOS switching unit;

[0011] The MOS switching unit includes a first MOS switch and a second MOS switch.

[0012] In another embodiment, the switching unit is also used to control the on and off states of the first MOS switch.

[0013] In another embodiment, the first MOS switch is used to control the startup of the system microcontroller.

[0014] In another embodiment, the system microcontroller is also used to control the on and off states of the first MOS switch and the second MOS switch.

[0015] In another embodiment, the system microcontroller is configured to control the second MOS switch to turn on and maintain the first MOS switch on when the switch state is detected to be a short press state.

[0016] In another embodiment, the system microcontroller is configured to control the first MOS switch and the second MOS switch to disconnect when the switch state is detected to be a long press state.

[0017] The beneficial effects of this utility model are as follows: The power supply battery switch of this utility model includes: an input power supply, a system power supply, a switching unit, and a system microcontroller; the input power supply is used to supply power to the load; the system power supply is used to supply power to the system microcontroller; the switching unit is used to control the power supply battery switch to be turned on and off; the system microcontroller is used to detect the switching state of the switching unit and control the power supply of the input power supply according to the switching state; the switching state includes a short press state and a long press state. The system microcontroller can control the power supply of the input power supply according to the switching state, that is, it can suppress the power supply of the input power supply when the switch state is off, that is, in standby mode, thereby effectively reducing energy consumption during standby.

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a circuit diagram of a power supply battery switch according to an embodiment of this application. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. It should be noted that references to "an embodiment," "embodiment," "example embodiment," etc., in this specification refer to the described embodiment including specific features, structures, or characteristics; however, not every embodiment must include these specific features, structures, or characteristics. Furthermore, such expressions do not refer to the same embodiment. Moreover, when describing specific features, structures, or characteristics in conjunction with embodiments, whether or not explicitly described, it is indicated that incorporating such features, structures, or characteristics into other embodiments is within the knowledge scope of those skilled in the art.

[0021] Furthermore, certain terms are used in the specification and subsequent claims to refer to specific components or parts. Those skilled in the art will understand that manufacturers may use different names or terms to refer to the same component or part. This specification and subsequent claims do not distinguish components or parts by differences in name, but rather by differences in function. The terms "comprising" and "including" used throughout the specification and subsequent claims are open-ended and should be interpreted as "including but not limited to." Additionally, the term "connection" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connections made through other means.

[0022] Please see Figure 1 , Figure 1 The circuit diagram shows a battery switch, which includes: an input power supply, a system power supply, a switching unit, and a system microcontroller; the input power supply is used to supply power to a load; the system power supply is used to supply power to the system microcontroller; the switching unit is used to control the battery switch to be turned on and off; the system microcontroller is used to detect the switching state of the switching unit and control the supply of power from the input power supply according to the switching state; the switching state includes a short press state and a long press state.

[0023] Optionally, the power supply battery switch further includes a MOS switching unit; the MOS switching unit includes a first MOS switch and a second MOS switch.

[0024] Optionally, the switching unit is also used to control the on and off states of the first MOS switch.

[0025] Optionally, the first MOS switch is used to control the startup of the system microcontroller.

[0026] Optionally, the system microcontroller is also used to control the on and off states of the first MOS switch and the second MOS switch.

[0027] Optionally, the system microcontroller is used to control the second MOS switch to turn on and maintain the first MOS switch on when the switch state is detected to be a short press state.

[0028] Optionally, the system microcontroller is used to control the first MOS switch and the second MOS switch to disconnect when the switch state is detected to be a long press state.

[0029] For example, in combination Figure 1 Taking the use of a primary power supply battery switch as an example, when the input power VBAT+ / - is initially connected, TP1, TP3, and TP4 are all at low level, and TP2 is at high level. The first MOS switch MOSFET Q1 and the second MOS switch MOSFET Q2 are both in the off state. Therefore, the power consumption of the input power VBAT+ / - is the lowest in this state. When it is necessary to start, the switch unit SW1 needs to be pressed to change TP2 to low level, thereby turning on the first MOS switch MOSFET Q1. The system power supply VSYS and TP1 rise to high level to power the system microcontroller for startup. After the system microcontroller is officially started, the output LOCK signal is high level, which raises TP4 to high level, allowing the second MOS switch MOSFET Q2 to enter the conducting state, thereby maintaining the conducting state of the first MOS switch MOSFET Q1. Finally, the KEY signal TP3 rises to a high level to prepare for recognizing the state of button SW1. If the system microcontroller recognizes a short press, it means the power supply battery switch needs to be turned on, and the state can be maintained. If the system microcontroller recognizes a long press, it means the power supply battery switch needs to be turned off, and the system microcontroller puts the product into standby mode, that is, it stops outputting the LOCK high-level signal. TP4 is reduced to a low level by the resistor, causing the second MOS switch MOSFET Q2 to enter the off state. TP2 rises to a high level, which in turn causes the first MOS switch MOSFET Q1 to enter the off state. The system power supply VSYS has no power output to the system microcontroller, thus achieving the lowest power consumption state in standby mode.

[0030] The battery switch in the above embodiment includes: an input power supply, a system power supply, a switching unit, and a system microcontroller; the input power supply is used to supply power to the load; the system power supply is used to supply power to the system microcontroller; the switching unit is used to control the battery switch to be turned on and off; the system microcontroller is used to detect the switching state of the switching unit and control the power supply of the input power supply according to the switching state; the switching state includes a short press state and a long press state. The system microcontroller can control the power supply of the input power supply according to the switching state, that is, it can suppress the power supply of the input power supply when the switch state is off, that is, in standby mode, thereby effectively reducing energy consumption during standby.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A power supply battery switch, characterized by, The power supply battery switch includes: an input power supply, a system power supply, a switching unit, and a system microcontroller; The input power supply is used to supply power to the load; The system power supply is used to power the system microcontroller; The switching unit is used to control the power supply battery switch to be turned on and off; The system microcontroller is used to detect the switching state of the switching unit and control the power supply of the input power source according to the switching state; the switching state includes a short press state and a long press state.

2. The power supply battery switch of claim 1, wherein, The power supply battery switch also includes a MOS switching unit; The MOS switching unit includes a first MOS switch and a second MOS switch.

3. The power supply battery switch of claim 2, wherein, The switching unit is also used to control the on and off states of the first MOS switch.

4. The power supply battery switch of claim 3, wherein, The first MOS switch is used to control the startup of the system microcontroller.

5. The power supply battery switch of claim 2, wherein, The system microcontroller is also used to control the on and off states of the first MOS switch and the second MOS switch.

6. The power supply battery switch of claim 5, wherein, The system microcontroller is used to control the second MOS switch to turn on and maintain the first MOS switch on when the switch state is detected to be a short press state.

7. The power supply battery switch of claim 6, wherein The system microcontroller is used to control the first MOS switch and the second MOS switch to disconnect when the switch state is detected to be a long press state.

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