Power supply system and electronic equipment

Abstract

The embodiment of the utility model provides a power supply system and electronic equipment, the power supply system is applied to the electronic equipment, and the power supply system comprises a battery; the main board is connected with the battery through an input / output interface and is used for transmitting electric energy and signals; wherein the battery is provided with a first switch tube, the input / output interface is connected with the first switch tube, and the first switch tube is opened or closed by receiving different signals of the input / output interface, so that the mainboard is powered on or powered off. The power supply system provided by the utility model is used for controlling the power supply of the battery to the mainboard so as to thoroughly cut off the power supply of the battery to the mainboard.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to the field of intelligent equipment, in particular to a power supply system and electronic equipment. BACKGROUND

[0002] If the current notebook computer appears the ramming machine phenomenon when using, sometimes the system completely does not respond phenomenon appears, at this moment, it needs to wait until the battery power is exhausted to shut down or restart; in addition, sometimes after updating the software system of EC, it also appears that it needs to wait until the battery power is exhausted to restart to take effect. UTILITY MODEL CONTENT

[0003] The utility model provides a kind of for the power supply of battery to the power supply of mainboard is controlled, to realize the power supply system and electronic equipment of completely disconnecting the power supply of battery to mainboard.

[0004] To solve the above technical problems, the utility model embodiment provides a kind of power supply system, it is applied to electronic equipment, the power supply system includes:

[0005] Battery;

[0006] Mainboard is connected with the battery by input and output interface, for power and signal transmission;

[0007] Wherein, the first switch tube is equipped on the battery, the input and output interface is connected with the first switch tube, the first switch tube is opened or closed by receiving different signals of the input and output interface, to realize the power supply or power-off for the mainboard.

[0008] In some embodiments, the electronic equipment has power key, and the power key is triggered to the input and output interface to deliver start or close instruction signal.

[0009] In some embodiments, when the power key is triggered based on first trigger mode, first signal is delivered to the input and output interface, and the first switch tube is closed when receiving first signal.

[0010] In some embodiments, when the power key is triggered based on second trigger mode, second signal is delivered to the input and output interface, and the first switch tube is opened when receiving second signal.

[0011] In some embodiments, the first signal is low level signal for indicating power-off, and the second signal is high level signal for indicating power supply, and the first trigger mode is different from the second trigger mode.

[0012] In some embodiments, the second switch tube is also connected on the battery, and the second switch tube is connected with specified component, for power supply to specified component.

[0013] In some embodiments, the first switch tube and the second switch tube are connected to each other, so that the first switch tube and the second switch tube can be opened or closed synchronously based on the same signal.

[0014] In some embodiments, the gate of the first switch tube is connected to the gate of the second switch tube, and the input-output interface is connected to the gates of the first switch tube and the second switch tube at the same time.

[0015] In some embodiments, the input-output interface is connected to a switch tube assembly at the same time, the switch tube assembly includes a third switch tube and a fourth switch tube with opposite electrodes to block interference terms in the signal, and the gates and the drains of the third switch tube and the fourth switch tube are connected.

[0016] The utility model discloses another embodiment simultaneously provides an electronic equipment, including the power supply system as any one of the above embodiment.

[0017] Based on the disclosure of the above embodiments, it can be known that the embodiments of the utility model have the beneficial effects including that the power supply between the battery and the mainboard is switched by a switch tube, that is, the power supply to the mainboard is switched or stopped. The switch tube is controlled by an input-output interface (GPIO), different signals are transmitted to the switch tube based on the GPIO in response to the instruction input by the user, so that the switch control of the switch tube is realized, so that the battery power supply can be disconnected in the shutdown state, and the device use demand in some special scenes, such as the scene of system update restart, is met.

[0018] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application. The objects and other advantages of the present application can be realized and achieved by the structure particularly pointed out in the written description, claims, and drawings.

[0019] The technical solutions of the present application will be further described in detail below by means of the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0021] Figure 1 The circuit structure schematic diagram of the power supply system in the embodiments of the utility model.

[0022] Figure 2 The control operation flow chart of the power supply system in the embodiment of the utility model.

[0023] Reference signs:

[0024] 1-battery; 2-input output interface; 3-first switch tube; 4-second switch tube; 5-third switch tube; 6-fourth switch tube. DETAILED DESCRIPTION

[0025] Below, the specific embodiments of the utility model are described in detail in combination with the drawings, but not as the limitation of the utility model.

[0026] It should be understood that various modifications can be made to the embodiments disclosed herein. Accordingly, the specification and drawings are to be regarded in an illustrative manner and are not a limitation on the scope of the embodiments. Other modifications that one of ordinary skill will recognize in the art will fall within the scope of the present disclosure.

[0027] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0028] These and other characteristics of the present utility model will become readily apparent from the following description, made with reference to the accompanying drawings, wherein:

[0029] It should also be understood that, while the present utility model has been described above with reference to particular embodiments, many other modifications can be apparent to those of ordinary skill in the art that, having the benefit of the benefit of this disclosure, will appreciate the application as described herein and its many equivalents and, therefore, it is intended that such equivalents and modifications are within the scope of the present utility model as defined by the appended claims.

[0030] The above and other aspects, features, and advantages of the present disclosure will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings, when properly considered together.

[0031] Specific embodiments of the present disclosure are described hereafter with reference to the drawings; however, it should be understood that the disclosed embodiments are merely examples of the present disclosure, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present disclosure. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but are merely presented as a basis for the claims and representative basis for teaching one of ordinary skill in the art to variously employ the present disclosure in virtually any appropriate detailed structure.

[0032] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in still another embodiment,” all of which may refer to one or more of the same or different embodiments according to this disclosure.

[0033] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] like Figure 1 As shown, this utility model embodiment provides a power supply system applied in electronic devices, the power supply system comprising:

[0035] Battery;

[0036] The motherboard is connected to the battery via input / output interfaces for power and signal transmission.

[0037] The battery is equipped with a first switching transistor, and the input / output interface is connected to the first switching transistor. The first switching transistor can be turned on or off by receiving different signals from the input / output interface, thereby powering or de-powering the motherboard.

[0038] Based on the disclosure of the above embodiments, it can be understood that the beneficial effects of this embodiment include switching the power supply between the battery and the main power supply to the motherboard via a switching transistor, that is, switching to supply power to the motherboard or stopping the supply of power to the motherboard. The switching transistor is controlled by an input / output interface (GPIO). Based on the GPIO responding to the user's input instructions, different signals are transmitted to the switching transistor, thereby realizing the switching control of the switching transistor, so that the battery power supply can be disconnected even when the device is powered off, meeting the device usage requirements in some special scenarios, such as scenarios of system crash or system update restart.

[0039] In this embodiment, the electronic device has a power button. When the power button is triggered, it sends an indication signal to the input / output interface to indicate whether the device is turned on or off. Specifically, when the power button is triggered based on a first triggering method, a first signal is sent to the input / output interface. When the first switching transistor receives the first signal, it turns off. When the power button is triggered based on a second triggering method, a second signal is sent to the input / output interface. When the first switching transistor receives the second signal, it turns on. The first signal is a low-level signal indicating power off, and the second signal is a high-level signal indicating power supply. The first triggering method and the second triggering method are different.

[0040] In addition, continue to combine Figure 1As shown, since the battery also needs to supply power to other components, a second switch tube is also connected to the battery in this embodiment, which is connected to the designated component for power supply. With the increase in the number of designated components, the number of second switch tubes can also be increased. In this embodiment, the first switch tube and the second switch tube are connected to each other, so that the first switch tube and the second switch tube can be synchronously turned on or off based on the same signal.

[0041] Specifically, in this embodiment, the gate of the first switch tube is connected to the gate of the second switch tube, and the input and output interface is connected to the gates of the first switch tube and the second switch tube.

[0042] In another embodiment, the input and output interface is connected to the switch tube assembly, which includes a third switch tube and a fourth switch tube with opposite electrodes to block interference terms in the signal, and the gates and drains of the third switch tube and the fourth switch tube are connected.

[0043] In actual application, continue to combine Figure 1 As shown, the default state of BATSW_GPIO is High, which can output a high-level signal. In special cases, such as complete discharge, this GPIO can be converted to LOW by setting, that is, output a low-level signal. Q51 and Q50 are the third switch tube and the fourth switch tube, respectively. Q51 D / S is turned on, and the G pole of Q50 is Low at this time. Q50 is turned off, and the G pole of Q3 / Q13 (the first switch tube and the second switch tube, respectively) is High (high level). At this time, Q3 / Q13 is in the on state, and the battery voltage +BATT_C / +BATT_SW is turned on, and the power is transmitted to the mainboard power supply +BATT and +BATT_1. In the scenario of complete discharge, the user can press the power button 13S (8s+5s), and the EC will trigger the setting of disconnecting the battery and discharging after recognizing it: the default state of BATSW_GPIO is converted from High to Low, Q51 D / S is turned off, the G pole of Q50 is High at this time, Q50 is turned on, the G pole of Q3 / Q13 is Low, at this time Q3 / Q13 is turned off, and the battery voltage +BATT_C / +BATT_SW cannot be transmitted to the mainboard power supply +BATT and +BATT_1 (+BATT_1 is not used when the mainboard is not used, Q13 can be removed).

[0044] For example, as Figure 2 As shown, the following steps are designed when applying the operation:

[0045] Step 1: Confirm that the system power button is not abnormal;

[0046] Step2: long press power key 5s, system automatically shut down, do not release the power key;

[0047] Step3: after Step2, continue to press the power button 5s until the power indicator light flashes, release the power button;

[0048] Step4: after releasing the power button in Step3, press the power button 5s within 2s to trigger the GPIO action to cut off the battery (the CMOS CLR function can also be activated within 5s);

[0049] Step5: the battery and the mainboard main power supply are switched by a MOS, and the MOSfet is controlled by the GPIO, so that the battery power supply can be disconnected in some special demand scenarios in the need of shutdown state.

[0050] When the scene needs to be completely discharged, the user can press the power-off switch through the small hole installed in the hidden place of the notebook computer, pull down BATSW_GPIO in the following figure, Q51 D / S is turned off, at this time the G pole of Q50 is H i gh, Q50 is turned on, the G pole of Q3 / Q13 is l ow, Q3 / Q13 is turned off, the battery voltage +BATT_C / +BATT_SW, at this time it cannot be transmitted to the mainboard power supply +BATT and +BATT_1 (+BATT_1 this road mainboard is not used, Q13 can be not powered on).

[0051] BATSW_GPIO default state is H i gh (special case needs to be completely discharged, this GPIO can be converted to LOW by setting), Q51 D / S is turned on, the G pole of Q50 is Low, Q50 is turned off, the G pole of Q3 / Q13 is H i gh, Q3 / Q13 is turned on, the battery voltage +BATT_C / +BATT_SW is turned on, used to transmit power to the mainboard power supply +BATT and +BATT_1 (+BATT_1 this road mainboard is not used, Q13 can be not powered on).

[0052] Another embodiment of the utility model also provides an electronic equipment which comprises the power supply system as claimed in any one of the preceding embodiments.

[0053] The above embodiments are only exemplary embodiments of the utility model and are not used to limit the utility model, and the protection scope of the utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the utility model within the spirit and protection scope of the utility model, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the utility model.

Claims

1. A power supply system applied in an electronic device, characterized in that, The power supply system comprises: a battery; a mainboard connected with the battery through an input-output interface for power and signal transmission; wherein a first switch tube is arranged on the battery, the input-output interface is connected with the first switch tube, and the first switch tube is opened or closed by receiving different signals of the input-output interface, thereby realizing power supply or power-off for the mainboard.

2. The power supply system of claim 1, wherein, The electronic device has a power key, which sends an indication signal of starting or closing to the input-output interface when triggered.

3. The power supply system of claim 2, wherein, When the power key is triggered based on a first triggering mode, a first signal is sent to the input-output interface, and the first switch tube is closed when receiving the first signal.

4. The power supply system of claim 3, wherein, When the power key is triggered based on a second triggering mode, a second signal is sent to the input-output interface, and the first switch tube is opened when receiving the second signal.

5. The power supply system of claim 4, wherein, The first signal is a low-level signal representing power-off, and the second signal is a high-level signal representing power supply. The first triggering mode is different from the second triggering mode.

6. The power supply system of claim 1, wherein, A second switch tube is also connected to the battery, and the second switch tube is connected with a designated component for power supply.

7. The power supply system of claim 6, wherein, The first switch tube and the second switch tube are connected with each other, so that the first switch tube and the second switch tube can be synchronously opened or closed based on the same signal.

8. The power supply system of claim 6, wherein, The gate of the first switch tube is connected with the gate of the second switch tube, and the input-output interface is connected with the gates of the first switch tube and the second switch tube.

9. The power supply system of claim 1, wherein, The input-output interface is connected with a switch tube assembly, the switch tube assembly includes a third switch tube and a fourth switch tube with opposite electrodes to block interference terms in the signal, and the gates and drains of the third switch tube and the fourth switch tube are connected.

10. An electronic device, comprising: The power supply system comprises any one of claims 1-9.

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