CN218124360U - Battery pack, low-power-consumption control circuit thereof and handheld terminal equipment - Google Patents
Battery pack, low-power-consumption control circuit thereof and handheld terminal equipment Download PDFInfo
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- CN218124360U CN218124360U CN202222343020.1U CN202222343020U CN218124360U CN 218124360 U CN218124360 U CN 218124360U CN 202222343020 U CN202222343020 U CN 202222343020U CN 218124360 U CN218124360 U CN 218124360U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery package and low-power consumption control circuit, handheld terminal equipment thereof, the circuit includes: the battery management system comprises a control chip, a switch unit, a signal detection unit and a battery management unit, wherein the other end of the signal detection unit is connected with a signal input end of the control chip; the first end of the switch unit is connected with the signal output end of the control chip; one end of the battery management unit is respectively connected with the signal output end of the switch unit and one end of the signal detection unit; the control chip is used for acquiring a signal feedback value of the detection assembly when the signal detection unit detects the switch trigger signal, and outputting a control signal to the switch unit when the signal feedback value is within a preset variation range and does not receive an external trigger signal, so that the switch unit is in a disconnected state, the battery management unit is in a disconnected state, and the battery pack is not output. The circuit can control the switching of the low power consumption mode of the battery pack according to the signal feedback value and the external trigger signal, and prolong the service time of the battery pack.
Description
Technical Field
The utility model relates to a handheld terminal technology field especially relates to a low-power consumption control circuit, a battery package and a handheld terminal equipment of battery package.
Background
At present, most of handheld terminals are powered by battery packs, and the power consumption of the handheld terminals becomes a key factor influencing the service life of the battery packs. Generally, when a user presses a switch key, the handheld terminal controls the battery pack to supply power until the user presses a closing key, the battery pack stops supplying power, and the battery pack of the handheld terminal is continuously in a power consumption state after the switch key is started, so that the battery pack is continuously in a high power consumption stage, and the service time of the battery pack is reduced.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model discloses a first aim at provides a low-power consumption control circuit of battery package can control the output of battery package according to signal feedback value and outside trigger signal, realizes the switching to battery package low-power consumption mode, prolongs the live time of battery package.
A second object of the present invention is to provide a battery pack.
A third object of the present invention is to provide a handheld terminal device.
In order to achieve the above object, the utility model provides a low-power consumption control circuit of battery package is proposed to the first aspect, include: the battery management system comprises a control chip, a switch unit, a signal detection unit and a battery management unit, wherein one end of the signal detection unit is suitable for being connected with the negative electrode of a battery pack, and the other end of the signal detection unit is connected with the signal input end of the control chip; the first end of the switch unit is connected with the signal output end of the control chip, and the second end of the switch unit is suitable for being connected with the negative electrode of the battery pack; one end of the battery management unit is connected with the signal output end of the switch unit and one end of the signal detection unit respectively, and the other end of the battery management unit is suitable for being connected with the anode of the battery pack; the control chip is used for acquiring a signal feedback value of the detection assembly when the signal detection unit detects the switch trigger signal, and outputting a control signal to the switch unit when the signal feedback value is within a preset variation range and does not receive an external trigger signal, so that the switch unit is in a disconnected state, the battery management unit is in a disconnected state, and the battery pack is not output.
According to the utility model discloses a low-power consumption control circuit of battery package, the one end of signal detection unit is suitable for the negative pole with the battery package and links to each other, the other end of signal detection unit links to each other with control chip's signal input part, the first end of switch unit links to each other with control chip's signal output part, the second end of switch unit is suitable for the negative pole with the battery package and links to each other, the one end of battery management unit and switch unit's signal output part, signal detection unit's one end links to each other respectively, the other end of battery management unit is suitable for the anodal with the battery package and links to each other, control chip is when signal detection unit detects switch trigger signal, acquire determine module's signal feedback value, when signal feedback value is in predetermineeing the change range and does not receive external trigger signal, output control signal gives switch unit, so that switch unit is in the off-state, battery management unit is in the off-state, the battery package does not export. From this, the utility model discloses can control the output of battery package according to signal feedback value and external trigger signal, realize the switching to battery package low-power consumption mode, prolong the live time of battery package.
In addition, according to the utility model discloses the low-power consumption control circuit of foretell battery package can also have following additional technical characterstic:
specifically, the switching unit includes: the control end of the first switch tube is connected with the signal output end of the control chip through a first resistor, one end of the first switch tube is suitable for being connected with the negative electrode of the battery pack, and the other end of the first switch tube is connected with one end of the battery management unit; one end of the second resistor is connected with the control end of the first switching tube, and the other end of the second resistor is suitable for being connected with the negative electrode of the battery pack; and the first capacitor is connected with the second resistor in parallel.
Specifically, the first switch tube is an N-type MOS tube.
Specifically, the battery management unit includes: the control end of the second switch tube is respectively connected with the signal output end of the switch unit and one end of the signal detection unit, one end of the second switch tube is connected with the power supply, and the other end of the second switch tube is suitable for being connected with the anode of the battery pack; and one end of the third resistor is connected with the control end of the second switch tube, and the other end of the third resistor is connected with the other end of the second switch tube.
Specifically, the second switch tube is a P-type MOS tube.
Specifically, the signal detection unit includes: one end of the touch switch is suitable for being connected with the negative electrode of the battery pack; and the cathode of the first diode is connected with the other end of the touch switch, and the anode of the first diode is connected with the signal input end of the control chip.
Further, the signal detection unit further includes: and the cathode of the second diode is connected with the other end of the touch switch, and the anode of the second diode is connected with one end of the battery management unit.
Furthermore, the control chip is also used for outputting a low level signal to the switch unit so as to enable the switch unit to be in an off state, one end of the battery management unit is input as a high level signal, and the battery management unit is in the off state.
In order to achieve the above object, the second aspect of the present invention provides a battery pack, including the above-mentioned low power consumption control circuit of the battery pack.
According to the utility model discloses a battery package, based on foretell battery package's low-power consumption control circuit, can realize the switching to battery package low-power consumption mode, prolonged the live time of battery package.
In order to achieve the above object, the third aspect of the present invention provides a handheld terminal device, including the above battery pack and the detecting component.
According to the utility model discloses a handheld terminal equipment, based on foretell battery package, can realize the automatic switch-over to battery package low-power consumption mode to reduce handheld terminal equipment's consumption, prolong the live time of battery package.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a block diagram of a low power control circuit of a battery pack according to an embodiment of the present invention;
fig. 2 is a circuit topology diagram of a switching unit and a signal detection unit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a connection of a control chip according to an embodiment of the present invention;
fig. 4 is a circuit topology diagram of a battery management unit according to an embodiment of the present invention;
fig. 5 is a block diagram of a battery pack according to an embodiment of the present invention;
fig. 6 is a block diagram of a handheld terminal according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The present invention provides a low power consumption control circuit for a battery pack, and a handheld terminal device, which are described below with reference to the drawings.
Fig. 1 is a block diagram of a low power consumption control circuit of a battery pack according to an embodiment of the present invention.
As shown in fig. 1, the low power consumption control circuit of the battery pack may include: a control chip 10, a switching unit 20, a signal detection unit 30, and a battery management unit 40.
Wherein, one end of the signal detection unit 30 is suitable for being connected with the cathode 50 of the battery pack, and the other end of the signal detection unit 30 is connected with the signal input end of the control chip 10. A first terminal of the switching unit 20 is connected to the signal output terminal of the control chip 10, and a second terminal of the switching unit 20 is adapted to be connected to the negative electrode 50 of the battery pack. One end of the battery management unit 40 is connected to the signal output terminal of the switching unit 20 and one end of the signal detection unit 30, respectively, and the other end of the battery management unit 40 is adapted to be connected to the positive electrode 60 of the battery pack. The control chip 10 is configured to obtain a signal feedback value of the detection component 70 when the signal detection unit 30 detects a switch trigger signal, and output a control signal to the switch unit 20 when the signal feedback value is within a preset variation range and does not receive an external trigger signal, so that the switch unit 20 is in an off state, the battery management unit 40 is in an off state, and the battery pack is not output. Wherein, the preset variation range can be set according to the actual situation.
Specifically, taking the application of the low power consumption control circuit of the battery pack to the handheld terminal device as an example, the handheld terminal device is internally installed with a detection component 70, and the detection component 70 is used for detecting the motion of the handheld terminal device and generating a corresponding feedback signal, i.e. a signal feedback value. For example, when the detecting component 70 is a gyroscope, the signal feedback value is an angle value; when the detecting member 70 is an acceleration sensor, the signal feedback value is an acceleration value. The detecting component 70 can be selected according to actual conditions, and the corresponding signal feedback value can be the angle value or the acceleration value, or other detection values, which is not limited here. The low power consumption control circuit of the battery pack according to the present application will be described in detail below, taking a gyroscope as the detection unit 70 and a signal feedback value as an angle value.
The current state of the gyroscope is set as the original point (0 point) when the handheld terminal device is normally placed, if the handheld terminal device is moved or picked up, the built-in gyroscope senses the angle change of the handheld terminal device, and the detected angle value is uploaded to the control chip 10 in real time. Wherein, the origin can be set according to the actual situation.
In the operation process, the switch is a work control switch of the handheld terminal device, when the switch is triggered, the battery pack outputs power to the outside, and when the switch is not triggered, the battery pack does not supply power. The signal detection unit 30 detects the action of the switch in real time, when the switch is triggered, the battery pack outputs power, the signal detection unit 30 detects a switch trigger signal and outputs a corresponding detection signal to the control chip 10, and the control chip 10 receives the detection signal and analyzes the angle of the gyroscope in real time. When the angle change obtained by the gyroscope within 10s is small, namely the angle change is smaller than or equal to a preset change range, the handheld terminal device is determined to be in a static state, meanwhile, the control chip 10 does not receive an external trigger signal in the period, the handheld terminal device is determined not to work, the control chip 10 controls the switch unit 20 to be switched off, meanwhile, the battery management unit 40 is switched off, the battery pack stops outputting power supply, and therefore the battery pack and the handheld terminal device enter a low power consumption mode. The on/off of the switch unit 20 and the battery management unit 40 can be controlled by the control chip 10 at the same time, or different control modules can be respectively provided, and the switch unit and the battery management unit can be specifically applied according to actual situations. In addition, the external trigger signal can be sent out when other keys of the handheld terminal device are triggered.
When the angle change acquired by the gyroscope within 10s exceeds a preset change range, the handheld terminal device is confirmed to be in a mobile use state currently, and the switch unit 20 and the battery management unit 40 are kept conducted currently, so that the battery pack outputs electric energy outwards through the positive pole 60 of the battery pack and the negative pole 50 of the battery pack. Or, when the angle change acquired by the gyroscope within 10s does not exceed the preset change range, but the control chip 10 receives an external trigger signal, it still determines that the handheld terminal device is in the working state, and continues to maintain the current on-state of the switch unit 20 and the battery management unit 40, so that the battery pack outputs electric energy to the outside through the positive pole 60 of the battery pack and the negative pole 50 of the battery pack.
It should be noted that the angle change of the gyroscope may be determined by the fluctuation of the angle value within a preset time, and the specific preset time may be set according to an actual situation. Above-mentioned 10s only do as the utility model relates to an evaluation of gyroscope angle change in the realizable mode is preset time.
In addition, it should be noted that the determination of whether the handheld terminal device is in a stationary state according to the angle value fed back by the gyroscope is only an implementation manner of the present application. For example, if the detecting component 70 is an acceleration sensor and the signal feedback value is an acceleration value, when it is determined that the acceleration value has not changed or has a small change within a certain time, that is, within a preset acceleration change range, the control chip 10 determines that the handheld terminal device is in a stationary state, and does not receive an external trigger signal, and controls the battery pack to enter the low power consumption mode.
It should be further noted that the control chip 10 can also control the display mode of the display screen connected to the handheld terminal device, that is, the detection assembly 70 senses the change of the spatial position of the handheld terminal device, and the control chip 10 changes the display mode of the display screen according to the received signal feedback value of the detection assembly 70, so that the display screen can automatically adjust the display mode according to the different swing angles of the handheld terminal device, and an operator can conveniently observe the working state of the instrument. For example, assuming that the default display mode of the display screen is horizontal display, when the control chip 10 determines that the angle change of the handheld terminal device reaches 90 degrees according to the angle change fed back by the gyroscope, the control chip 10 controls the display mode of the display screen to be changed from horizontal display to vertical display, so that the display of the display screen changes along with the rotation of the handheld terminal device, and an operator can observe information on the display screen conveniently.
In an embodiment of the present invention, the control chip 10 is further configured to output a low level signal to the switch unit 20, so that the switch unit 20 is in an off state, the one end input of the battery management unit 40 is a high level signal, and the battery management unit 40 is in the off state.
That is, the switching unit 20 is turned off when the signal output terminal of the control chip 10 outputs a low level, the switching unit 20 is turned on when the signal output terminal outputs a high level, the battery management unit 40 is turned off when one end of the battery management unit 40 inputs a high level, and the battery management unit 40 is turned on when one end of the battery management unit 40 inputs a low level. When the signal detection unit 30 detects the switch trigger signal, the control chip 10 determines that the angle change of the gyroscope is within the preset change range and does not receive an external trigger signal, outputs a low level to the switch unit 20, and controls one end of the battery management unit 40 to input a high level, so that the switch unit 20 and the battery management unit 40 are both in an off state.
It should be noted that one end of the battery management unit 40 may also be connected to the control chip 10, and the control chip 10 outputs a corresponding control level to control the on/off of the battery management module 40, or another level providing unit may be provided to control the battery management unit 40, which may be specifically set according to actual situations.
As shown in fig. 2, in an embodiment of the present invention, the signal detection unit 30 includes: one end of the touch switch S1 is suitable for being connected with the negative electrode 50 (P-) of the battery pack; and a cathode of the first diode D1 is connected with the other end of the touch switch S1, and an anode of the first diode D1 is connected with the signal input end 11 of the control chip 10.
Further, according to an embodiment of the present invention, the signal detecting unit 30 further includes: and a cathode of the second diode D2 is connected to the other end of the touch switch S1, and an anode of the second diode D2 is connected to one end of the battery management unit 40.
Specifically, when the touch switch S1 in the signal detection unit 30 receives a switch touch signal and is pressed down to be turned on, the signal input terminal 11 is grounded through the first diode D1 and the touch switch S1, at this time, the signal input terminal 11 is at a low level, meanwhile, one end of the battery management unit 40 is grounded through the second diode D2 and the touch switch S1, one end of the battery management unit 40 is at a low level, at this time, the battery management unit 40 is turned on, and the battery pack outputs power.
It should be noted that the first diode D1 and the second diode D2 can limit the current flowing in the circuit, and avoid the damage of the control chip 10 and the battery management unit 40 due to the voltage abnormality based on the single-phase conduction characteristic.
In addition, referring to fig. 3, the control chip 10 is respectively provided with a signal detection terminal 11 connected to the signal detection unit 30, and a signal output terminal 12 connected to the switch unit 20, and is connected to an external output for receiving an external trigger signal, and is further connected to a detection assembly 70 for receiving a signal feedback value output by the detection assembly 70.
As shown in fig. 2, in an embodiment of the present invention, the switch unit 20 includes: a first switch tube Q1, a control end of the first switch tube Q1 is connected with a signal output end of the control chip 10 through a first resistor R1, one end of the first switch tube Q1 is suitable for being connected with a negative electrode 50 (P-) of the battery pack, and the other end of the first switch tube Q1 is connected with one end of the battery management unit 40; one end of the second resistor R2 is connected with the control end of the first switch tube Q1, and the other end of the second resistor R2 is suitable for being connected with the negative electrode 50 (P-) of the battery pack; the first capacitor C1 is connected with the second resistor R2 in parallel, and the first capacitor C1 is connected with the second resistor R2 in parallel. The first switch tube Q1 is an N-type MOS tube.
Specifically, the G pole of the first switch Q1 is a control end, and is connected to the signal output end 12, the S pole of the first switch Q1 is used as one end of the first switch Q1 connected to the P-, and the D pole of the first switch Q1 is used as the other end of the first switch Q1, and is connected to the battery management unit 40. The first resistor R1 and the first capacitor C1 form a filtering unit, and the second resistor R2 is a pull-down resistor.
When the signal output end 12 outputs no signal, the G pole of the first switch tube Q1 is pulled down to a low level under the action of the second resistor R2, and the first switch tube Q1 is not turned on. When the signal output end 12 outputs a high level, the G of the first switch tube Q1 is at a high level, the first switch tube Q1 is turned on, and one end of the battery management unit 40 is grounded through the first switch tube Q1 and is at a low level. When the signal output end 12 outputs a low level, the G pole of the first switch tube Q1 is at a low level, and the first switch tube Q1 is not turned on.
As shown in fig. 4, in an embodiment of the present invention, the battery management unit 40 includes: a control end of the second switch tube Q2 is connected to the signal output end of the switch unit 20 and one end of the signal detection unit 30, respectively, one end of the second switch tube Q2 is connected to the power supply 80, and the other end of the second switch tube Q2 is adapted to be connected to the positive electrode of the battery pack; and one end of the third resistor R3 is connected with the control end of the second switch tube Q2, and the other end of the third resistor R3 is connected with the other end of the second switch tube Q2.
In an embodiment of the present invention, the second switch Q2 is a P-type MOS transistor.
Specifically, continuing with fig. 2 as an example, it is assumed that the switching unit 20 and the signal detection unit 30 are connected to one end of the battery management unit 40 through the C terminal 90 of the battery pack, that is, the anode of the second diode D2 and the D pole of the first switching tube Q1 are connected to the C terminal 90 of the battery pack, and the C terminal 90 of the battery pack is connected to one end of the battery management unit 40. The G pole of the second switch tube Q2 of the battery management unit 40 is a control end and is connected to the C end 90 of the battery pack, the S pole of the second switch tube Q2 is connected to the positive pole 60 of the battery pack, the D pole of the second switch tube Q2 is connected to the positive pole of the power supply 80, and the negative pole of the power supply 80 is connected to the negative pole 50 of the battery pack. The third resistor R3 is a pull-up resistor.
When the C terminal 90 of the battery pack has no signal input, the G pole of the second switch tube Q2 is pulled up to a high level under the action of the third resistor R3, and the second switch tube Q2 is not turned on. When the C terminal 90 of the battery pack inputs a high level, the G electrode of the second switch tube Q2 is at a high level, the second switch tube Q2 is not turned on, the positive electrode 60 of the battery pack is not connected to the positive electrode of the power supply 80, and the positive electrode 60 of the battery pack and the negative electrode 50 of the battery pack are not output outwards. When the C terminal 90 of the battery pack inputs a low level, the G pole of the second switch tube Q2 is at a low level, the second switch tube Q2 is turned on, the positive pole 60 of the battery pack is connected with the positive pole of the power supply 80, and the positive pole 60 of the battery pack and the negative pole 50 of the battery pack output outwards, that is, the battery pack supplies power.
Taking fig. 2, fig. 3 and fig. 4 as an example, the detecting component 70 is a gyroscope, and the signal feedback value is an angle value. When the touch switch S1 is pressed, the signal input terminal 11 is at a low level, and the C terminal 90 of the battery pack is pulled down to a low level, so that the G electrode of the second switch tube Q2 is at a low level, the second switch tube Q2 is turned on, and the battery pack supplies power to the outside. At this moment, the control chip 10 is powered on, the gyroscope works, meanwhile, the control chip 10 receives a low level signal through the signal input end 11, the control chip 10 outputs a high level through the signal output end 12, the first switch tube Q1 is switched on, so that one end of the battery management unit 40, namely, the G pole of the second switch tube Q2, is pulled down to a low level through the second switch tube Q2, the on state of the second switch tube Q2 is maintained, at this moment, even if the touch switch S1 is released, the battery pack can also maintain a power supply output state, and the control chip 10 and the gyroscope also continuously work. The delay time of the high level output by the signal output end 12 can be controlled according to actual conditions, and the control chip 10 can achieve the effect of delayed power supply of the battery pack through the high level output by the signal output end 12. It is understood that the delay time is counted from the time when the touch switch S1 is released.
When the touch switch S1 is pressed down, the control chip 10 is powered on, the gyroscope uploads the angle value detected in real time to the control chip 10, and when the control chip 10 determines that the angle value changes in a small range or even the angle value remains unchanged, and the control chip 10 does not receive an external trigger signal input by another control key, the control signal output end 12 outputs a low level, the G pole of the first switch tube Q1 is pulled down to the low level under the action of the second resistor R2, and the first switch tube Q1 is turned off. The C terminal 90 of the battery pack has no input, the G pole of the second switch tube Q2 of the battery management unit 40 is pulled up to a high level under the action of the third resistor R3, the second switch tube Q2 is turned off, the battery pack has no output, and the battery pack enters a low power consumption mode. It can be understood that, when the control chip 10 is powered on and controls the switch unit 20 to be turned on, the on/off control of the battery management unit 40 is only performed by the output signal of the switch unit 20, and is not affected by the touch switch S1, at this time, even if the touch switch S1 is pressed, when the control chip 10 determines that the handheld terminal device is in the non-working state, the battery management unit 40 may be turned off along with the turning off of the switch unit 20, so as to reduce the power consumption of the battery pack. In addition, the battery pack is turned on again, so that the user presses the S1 key of the touch switch again, and the battery pack is awakened and powered up again.
To sum up, according to the utility model discloses a low-power consumption control circuit of battery package, the one end of signal detection unit is suitable for the negative pole with the battery package and links to each other, the other end of signal detection unit links to each other with control chip's signal input part, the first end of switch unit links to each other with control chip's signal output part, the second end of switch unit is suitable for the negative pole with the battery package and links to each other, the one end and the signal output part of switch unit of battery management unit, signal detection unit's one end links to each other respectively, battery management unit's the other end is suitable for the positive pole with the battery package and links to each other, control chip is when signal detection unit detects switch trigger signal, acquire the signal feedback value of determine module, when signal feedback value is in predetermineeing the variation range and has not received external trigger signal, output control signal gives the switch unit, so that the switch unit is in the off-state, battery management unit is in the off-state, the battery package does not export. Therefore, the utility model discloses can control the output of battery package according to signal feedback value and external trigger signal, realize the switching to battery package low-power consumption mode, prolong the live time of battery package.
Corresponding to above-mentioned embodiment, the utility model also provides a battery package.
As shown in fig. 5, the battery pack 100 of the present invention includes the above-mentioned low power consumption control circuit 110.
According to the utility model discloses a battery package, based on foretell battery package's low-power consumption control circuit, can realize the switching to battery package low-power consumption mode, prolonged the live time of battery package.
Corresponding to the above embodiment, the utility model also provides a handheld terminal equipment.
As shown in fig. 6, the handheld terminal device 1000 of the present invention includes the battery pack 100 and the detection assembly 70.
According to the utility model discloses a handheld terminal equipment, based on foretell battery package, can realize the automatic switch-over to battery package low-power consumption mode to reduce handheld terminal equipment's consumption, the live time of extension battery package, the usable operating time of extension handheld terminal equipment is long.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A low power consumption control circuit of a battery pack, comprising: a control chip, a switch unit, a signal detection unit and a battery management unit, wherein,
one end of the signal detection unit is suitable for being connected with the negative electrode of the battery pack, and the other end of the signal detection unit is connected with the signal input end of the control chip;
the first end of the switch unit is connected with the signal output end of the control chip, and the second end of the switch unit is suitable for being connected with the negative electrode of the battery pack;
one end of the battery management unit is connected with the signal output end of the switch unit and one end of the signal detection unit respectively, and the other end of the battery management unit is suitable for being connected with the anode of the battery pack;
the control chip is used for acquiring a signal feedback value of the detection assembly when the signal detection unit detects a switch trigger signal, and outputting a control signal to the switch unit when the signal feedback value is within a preset variation range and does not receive an external trigger signal, so that the switch unit is in a disconnected state, the battery management unit is in a disconnected state, and the battery pack is not output.
2. The low power consumption control circuit of a battery pack according to claim 1, wherein the switching unit includes:
the control end of the first switch tube is connected with the signal output end of the control chip through a first resistor, one end of the first switch tube is suitable for being connected with the negative electrode of the battery pack, and the other end of the first switch tube is connected with one end of the battery management unit;
one end of the second resistor is connected with the control end of the first switch tube, and the other end of the second resistor is suitable for being connected with the negative electrode of the battery pack;
a first capacitor connected in parallel with the second resistor.
3. The low power consumption control circuit of the battery pack according to claim 2, wherein the first switch transistor is an N-type MOS transistor.
4. The low power consumption control circuit of the battery pack according to claim 1, wherein the battery management unit includes:
a control end of the second switch tube is respectively connected with a signal output end of the switch unit and one end of the signal detection unit, one end of the second switch tube is connected with a power supply, and the other end of the second switch tube is suitable for being connected with the anode of the battery pack;
and one end of the third resistor is connected with the control end of the second switch tube, and the other end of the third resistor is connected with the other end of the second switch tube.
5. The low power consumption control circuit of the battery pack according to claim 4, wherein the second switch transistor is a P-type MOS transistor.
6. The low power consumption control circuit of a battery pack according to claim 1, wherein the signal detection unit includes:
one end of the touch switch is suitable for being connected with the negative electrode of the battery pack;
and the cathode of the first diode is connected with the other end of the touch switch, and the anode of the first diode is connected with the signal input end of the control chip.
7. The low power consumption control circuit of the battery pack according to claim 6, wherein the signal detection unit further comprises:
and the cathode of the second diode is connected with the other end of the touch switch, and the anode of the second diode is connected with one end of the battery management unit.
8. The low power consumption control circuit of the battery pack according to claim 1, wherein the control chip is further configured to output a low level signal to the switch unit, so that the switch unit is in an off state, the battery management unit has a high level signal input at one end, and the battery management unit is in the off state.
9. A battery pack, characterized by comprising a low power consumption control circuit of the battery pack according to any one of claims 1 to 8.
10. A handheld terminal device comprising the battery pack according to claim 9 and a detection assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222343020.1U CN218124360U (en) | 2022-09-06 | 2022-09-06 | Battery pack, low-power-consumption control circuit thereof and handheld terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222343020.1U CN218124360U (en) | 2022-09-06 | 2022-09-06 | Battery pack, low-power-consumption control circuit thereof and handheld terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218124360U true CN218124360U (en) | 2022-12-23 |
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ID=84529719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222343020.1U Active CN218124360U (en) | 2022-09-06 | 2022-09-06 | Battery pack, low-power-consumption control circuit thereof and handheld terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218124360U (en) |
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2022
- 2022-09-06 CN CN202222343020.1U patent/CN218124360U/en active Active
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