WO2017215341A1

WO2017215341A1 - Detection apparatus for electric quantity of battery and mobile electronic device

Info

Publication number: WO2017215341A1
Application number: PCT/CN2017/080838
Authority: WO
Inventors: 许永昌; 盛阁
Original assignee: 深圳市鼎盛智能科技有限公司
Priority date: 2016-06-16
Filing date: 2017-04-18
Publication date: 2017-12-21
Also published as: CN106124995B; CN106124995A

Abstract

Disclosed are a detection apparatus for the electric quantity of a battery and a mobile electronic device. The detection apparatus for the electric quantity of a battery comprises a plurality of voltage sampling circuits (110, 120, 130, 140), a plurality of voltage comparison circuits (210, 220, 230, 240) and an electric quantity calculation circuit (300). The number of the voltage comparison circuits (210, 220, 230, 240) corresponds to the number of the voltage sampling circuits (110, 120, 130, 140). Sampling ends of the plurality of voltage sampling circuits (110, 120, 130, 140) are used to be connected to the battery, and output ends of the voltage sampling circuits (110, 120, 130, 140) correspond to input ends of the plurality of voltage comparison circuits (210, 220, 230, 240) on a one-to-one basis. Output ends of the plurality of voltage comparison circuits (210, 220, 230, 240) are connected to the electric quantity calculation circuit (300). Each of the voltage sampling circuits (110, 120, 130, 140) outputs different proportions of the voltage after a voltage of the battery is sampled. The voltage comparison circuits (210, 220, 230, 240) are used to compare the voltage output by the voltage sampling circuits (110, 120, 130, 140) correspondingly connected thereto with one pre-set reference voltage, and to output a corresponding voltage comparison signal. The electric quantity calculation circuit (300) is used to calculate the obtained current electric quantity of the battery according to an output voltage signal of each of the voltage comparison circuits (210, 220, 230, 240).

Description

Battery power detection device and mobile electronic device

Technical field

The present invention relates to the field of battery technologies, and in particular, to a battery power detecting device and a mobile electronic device.

Background technique

A mobile phone usually has a battery. During the operation of the mobile electronic device, the battery is discharged; when the battery is relatively low, the battery needs to be charged.

However, during the battery discharge process, when the battery power is lower than a certain value, it is easy to cause irreversible loss to the battery, and the battery storage capacity is weakened. In the process of charging the battery, when the battery power is higher than a certain value, it is easy to cause the battery to explode. Therefore, in the process of charging or discharging the battery, it is necessary to detect the battery power, thereby facilitating protection of the battery.

Summary of the invention

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a battery power detecting device for detecting battery power.

To achieve the above object, the battery power detecting device of the present invention includes a plurality of voltage sampling circuits, a plurality of voltage comparison circuits, and a power calculation circuit, the number of the voltage comparison circuits corresponding to the number of the voltage sampling circuits; The sampling end of the voltage sampling circuit is connected to the battery, and the output ends of the plurality of voltage sampling circuits are connected in one-to-one correspondence with the input ends of the plurality of voltage comparison circuits; the output ends of the plurality of voltage comparison circuits Connected to the power calculation circuit; wherein each of the voltage sampling circuits has a different voltage output ratio after voltage sampling of the battery; and the voltage comparison circuit is configured to output the voltage sampling circuit connected thereto The voltage is compared with a predetermined reference voltage, and a corresponding voltage comparison signal is output; the power calculation circuit is configured to calculate a current power of the battery according to an output voltage signal of each of the voltage comparison circuits.

Preferably, each of the voltage sampling circuits has a preset voltage dividing ratio, and preset voltage dividing ratios of the voltage sampling circuits are different.

Preferably, the voltage sampling circuit includes an input resistor and an output resistor; a first end of the input resistor is a sampling end of the voltage sampling circuit, a second end of the input resistor and a first end of the output resistor Connected, the connection node is the output of the voltage sampling circuit, and the second end of the output resistor is grounded.

Preferably, the input resistance and/or output resistance is an adjustable resistance.

Preferably, the battery power detecting device further includes a current detecting circuit, the detecting end of the current detecting circuit is connected to the battery, and an output end of the current detecting circuit is connected to the power calculating circuit; the power calculating circuit further For calculating that the current amount of the battery is obtained according to the current detection signal of the current detecting circuit when each of the voltage comparison circuits outputs a high level signal.

Preferably, the power calculation circuit is further configured to calculate, when the high voltage signals are output by each of the voltage comparison circuits, calculate the battery according to an output voltage signal of each voltage comparison circuit and a current signal of the current detection circuit. Current power.

Preferably, the battery power detecting device further includes a temperature detecting circuit for detecting the battery temperature and outputting a corresponding temperature detecting signal, an output end of the temperature detecting circuit is connected to the power detecting circuit; The circuit is further configured to calculate the current power of the battery according to the temperature detection signal output by the temperature detecting circuit and the output voltage signal of each of the voltage comparison circuits and/or the current detection signal of the current detecting circuit.

Preferably, the battery power detecting device further includes a display circuit and a control circuit, and the control circuit is respectively connected to the power amount calculating circuit and the display circuit.

Preferably, the display circuit includes a power display unit and an alarm unit; an input end of the power display unit is a first controlled end of the display circuit, and an input end of the alarm unit is a second end of the display circuit The control unit is configured to output an alarm signal when the battery power reaches a low battery threshold or a high battery threshold.

The present invention also provides a mobile electronic device comprising the battery power detecting device as described above; wherein the battery power detecting device comprises a plurality of voltage sampling circuits, a plurality of voltage comparing circuits, and a power calculating circuit, The number of the voltage comparison circuits corresponds to the number of the voltage sampling circuits; the sampling ends of the plurality of voltage sampling circuits are used for connection with a battery, and the outputs of the plurality of voltage sampling circuits are compared with a plurality of the voltages The input ends of the circuit are connected in a one-to-one correspondence; the output ends of the plurality of voltage comparison circuits are connected to the power calculation circuit; wherein each of the voltage sampling circuits has different voltage output ratios after voltage sampling of the battery; a voltage comparison circuit for comparing a voltage outputted by the voltage sampling circuit connected thereto with a predetermined reference voltage, and outputting a corresponding voltage comparison signal; the power calculation circuit is configured to The output voltage signal of the comparison circuit is calculated to obtain the current amount of power of the battery.

The technical scheme of the present invention samples and processes the battery voltage through a plurality of voltage sampling circuits, and the output ratios of the voltage sampling circuits after sampling the battery voltage are different, and the voltage comparison circuit outputs a voltage and a preset to the voltage sampling circuit connected thereto The reference voltage is compared, and a corresponding voltage comparison signal is output, so that the power detecting circuit calculates the current power of the battery according to the voltage comparison signal output by all the voltage comparison circuits. Since the magnitude of the output voltage is related to the amount of remaining power during charging or discharging of the battery, the power calculating circuit can calculate the battery power according to the output voltage of the voltage comparing circuit.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain other drawings according to the structures shown in the drawings without any creative work.

1 is a schematic diagram of functional modules of an embodiment of a battery power detecting device according to the present invention;

2 is a schematic diagram showing the circuit structure of another embodiment of the battery power detecting device of the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back, ...) in the embodiments of the present invention are only used to explain between components in a certain posture (as shown in the drawing). Relative positional relationship, motion situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions of "first", "second", and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.

The invention provides a battery power detecting device.

As shown in FIG. 1, in an embodiment, the battery power detecting device includes a plurality of voltage sampling circuits (such as four voltage sampling circuits shown in FIG. 1) and a plurality of voltage comparison circuits (as shown in FIG. 1). a voltage sampling circuit), and a power calculation circuit 300, the number of voltage comparison circuits corresponding to the number of voltage sampling circuits; the sampling ends of the plurality of voltage sampling circuits are connected to the battery, and the output ends of the plurality of voltage sampling circuits are multiple The input ends of the voltage comparison circuit are connected one by one; the output ends of the plurality of voltage comparison circuits are connected to the power calculation circuit 300; wherein the voltage sampling circuits of the voltage sampling circuits are different in voltage sampling, and the voltage comparison circuit is used for Comparing the voltage outputted by the voltage sampling circuit connected thereto with a predetermined reference voltage, and outputting a corresponding voltage comparison signal; the power calculation circuit 300 is configured to calculate the current power of the battery according to the output voltage signal of each voltage comparison circuit. .

In an embodiment, when the battery is fully charged, the corresponding output voltage is 14.8V, and when the battery is discharged, the corresponding output voltage is 11.27V; the battery power detecting device includes four voltage sampling circuits, four voltage comparison circuits, and The power calculation circuit 300 has a preset reference voltage of U. For the present embodiment, when the voltage output ratio after the voltage sampling circuit samples the battery voltage is set, the voltage having a size between 11.27V and 14.8V can be first divided into four cells. For example, the first voltage range [11.27V, 12.2V), the corresponding battery power is between 0 and 25%; the second voltage range [12.2V, 13.5V), the corresponding battery power is between 25% and 50% Between the third voltage range [13.5V, 14V), the corresponding battery power is between 50% and 75%; [14V, 14.8V), the corresponding battery power is between 75% and 100%. Then, the voltage ratio of the voltage sampling circuit after sampling the battery voltage is set to U/11.27%, U/12.2%, U/13.5%, and U/14%, respectively.

Thus, when the battery power is between 0 and 25%, the output voltage of the first voltage sampling circuit 110 is greater than U, and the first voltage comparison circuit 210 outputs a high level; the output voltage of the other sampling circuits is less than U, and other voltage comparison circuits The output is low.

When the battery power is between 25% and 50%, the output voltages of the first voltage sampling circuit 110 and the second voltage sampling circuit 120 are greater than U, and the first voltage comparison circuit 210 and the second voltage comparison circuit 220 output a high level; The output voltages of the third voltage sampling circuit 130 and the fourth voltage sampling circuit 140 are smaller than U, and the third voltage comparison circuit 230 and the fourth voltage comparison circuit 240 output a low level.

When the battery power is between 50% and 75%, the output voltages of the first voltage sampling circuit 110, the second voltage sampling circuit 120, and the third voltage sampling circuit 130 are greater than U, and the first voltage comparison circuit 210 compares the second voltage. The circuit 220 and the third voltage comparison circuit 230 output a high level; the output voltage of the fourth voltage sampling circuit 140 is less than U, and the fourth voltage comparison circuit 240 outputs a low level.

When the battery power is between 75% and 100%, the output voltage of the four voltage sampling circuits is greater than U, and the four voltage comparison circuits output a high level.

The number of high levels output by the voltage comparison circuit is different for each different range of battery power. Therefore, the power calculation circuit 300 can calculate the current power of the battery according to the output voltage of each voltage comparison circuit.

It can be understood that the power detecting device can further include five voltage sampling circuits and ten voltage sampling circuits. 100 voltage sampling circuits, and so on. Wherein, when the power detecting device includes five voltage sampling circuits, the output voltage of the battery can be divided into five voltage intervals according to the correspondence between the battery power and the battery output voltage, and each voltage interval corresponds to 20% of the power change. When the power detecting device includes 10 voltage sampling circuits, the output voltage of the battery can be divided into 10 voltage intervals according to the correspondence between the battery power and the battery output voltage, and each voltage interval corresponds to a 10% change in the amount of electricity. When the battery power detecting device includes 100 voltage sampling circuits, the output voltage of the battery can be divided into 100 voltage intervals according to the correspondence between the battery power and the battery output voltage, and each voltage interval corresponds to 1% of the power change.

It is worth mentioning that when the power detecting device includes five voltage sampling circuits, the output voltage of the battery can be divided into five voltage ranges according to the difference of the detection purpose and the correspondence between the battery power and the battery output voltage, for example, the first voltage. The interval corresponds to 0 to 4% of the battery power, the second voltage interval corresponds to 4% to 9% of the battery power, the third voltage interval corresponds to 9% to 15% of the battery power, and the fourth voltage interval and 15% to 98. The battery power of % corresponds, and the fifth voltage range corresponds to the battery power of 98% to 100%. In this way, the battery power can be more accurately detected when the battery power is low. Of course, other technical solutions can be obtained by using the inventive concept of the present invention, and details are not described herein.

As shown in FIG. 2, in a preferred embodiment, the voltage sampling circuit includes an input resistor R1 and an output resistor R2. The first end of the input resistor R1 is a sampling end of the voltage sampling circuit, and the second end of the input resistor R1 is The first end of the output resistor R2 is connected, the connection node is the output end of the voltage sampling circuit, and the second end of the output resistor R2 is grounded to GND. It can be understood that when sampling the output voltage of the battery, for any voltage sampling circuit, if the ratio of the input resistance R1 to the output resistance R2 is different from the ratio of the input resistance R1 of the other voltage sampling circuit to the output resistance R2, then The voltage output ratio of the battery after voltage sampling is different. In this way, it is ensured that when the output voltage of the battery is sampled, the voltage output ratios of the voltage sampling circuits of the battery are different.

In a preferred embodiment, the input resistor R1 and/or the output resistor R2 are adjustable resistors. It should be noted that when the input resistor R1 and/or the output resistor R2 are adjustable resistors, the ratio of the input resistor R1 to the output resistor R2 is adjustable in each voltage sampling circuit, so that the battery proposed by the present invention is used. When the power detecting device detects a certain battery power and then performs power detection on a battery having a different output voltage, it is only necessary to adjust the ratio of the input resistance R1 to the output resistance R2 in the voltage sampling circuit. For example, when the maximum power supply voltage of the battery detected by the battery power detecting device is 14.8V for the first time and the maximum power supply voltage of the second detected battery is 12V, the input resistance R1 of each voltage sampling circuit needs to be correspondingly reduced. The ratio of the output resistance R2; when the maximum power supply voltage of the first battery detected by the battery power detecting device is 3.3V, and the maximum power supply voltage of the second detected battery is 5V, the input resistance in each voltage sampling circuit needs to be increased accordingly. The ratio of R1 to output resistance R2.

It should be noted that when the battery starts to charge, the charging current is constant, and the output voltage increases with the increase of the electric quantity; in the later stage of the battery charging, the charging current decreases toward the increase of the electric quantity, and the output voltage is constant. Therefore, the battery power detecting device of the present invention further includes a current detecting circuit 400, the detecting end of the current detecting circuit 400 is connected to the battery, and the output end of the current detecting circuit 400 is connected to the power calculating circuit 300; wherein, the power calculating circuit 300 is further When the high voltage signals are outputted by the respective voltage comparison circuits, the current power of the obtained battery is calculated according to the current detection signal of the current detection circuit 400.

In one embodiment, when the battery starts to be charged, each voltage sampling circuit samples the output voltage of the battery and outputs a voltage of a corresponding magnitude to a corresponding voltage comparison circuit; the output voltage of the voltage sampling circuit corresponding to each voltage comparison circuit Comparing with the reference voltage, and outputting a corresponding voltage comparison signal at its output end; the power calculation circuit 300 calculates the current power of the battery according to the voltage comparison signal output by each voltage comparison circuit. When all the voltage comparison circuits output a high level, the current detecting circuit detects the charging current of the battery, and inputs the detected current value to the power calculating circuit, and the power calculating circuit 300 calculates the current power according to the current value.

In a preferred embodiment, when each voltage comparison circuit outputs a high level signal, the power calculation circuit 300 can further calculate the current state of the battery according to the output voltage signal of each voltage comparison circuit and the current detection signal of the current detection circuit 400. Electricity. It should be noted that the power calculation circuit 300 can also calculate the current battery power according to the current detection signal of the current detecting circuit 400 when the calculated battery power reaches the threshold power, for example, 90% power, 95% power, and the like. The current power of the battery is calculated according to the output voltage signal of each voltage comparison circuit and the current detection signal of the current detecting circuit 400, which is not limited herein. Further, in the above two embodiments, when all the voltage comparison circuits output a high level, it indicates that the battery voltage tends to be stable, and the battery power is still changing.

It is worth mentioning that because users may use electronic devices with batteries in places with low ambient temperature, such as Russia, Denmark and other areas close to the Arctic, it is also possible to use battery devices with batteries at higher ambient temperatures. Such as India, Malaysia and other areas close to the equator. The correspondence between battery power and battery output voltage or operating current is affected by temperature. Therefore, the battery power detecting device of the present invention further includes a temperature detecting circuit 600 for detecting a battery temperature and outputting a corresponding temperature detecting signal, and an output end of the temperature detecting circuit 400 is connected to the power calculating circuit 300; wherein the power calculating circuit 300 It is also used to calculate the current power of the battery according to the temperature detection signal output by the temperature detecting circuit 400 and the output voltage signal of each voltage comparison circuit and/or the current detection signal of the current detecting circuit.

In a preferred embodiment, the power calculation circuit 300 can determine the correspondence between the battery power and the battery output voltage according to the temperature detection signal output by the temperature detection circuit 600, and calculate the current battery power according to the output voltage signal of each voltage comparison circuit. . Alternatively, the power calculation circuit 300 determines the correspondence between the battery power and the battery operating current based on the temperature detection signal output from the temperature detecting circuit 600, and calculates the current battery power based on the current detection signal output from the current detecting circuit 400. Further, the power calculation circuit 300 determines the correspondence between the battery power and the operating current of the battery and the battery power and the battery output voltage according to the temperature detection signal outputted by the temperature detecting circuit 600, and according to the output voltage and current detecting circuit 400 of each voltage comparing circuit. The current detection signal is calculated to obtain the current amount of power of the battery.

Further, the battery power detecting device proposed by the present invention further includes a display circuit 900 and a control circuit 800. The control circuit 800 is connected to the power calculating circuit 300 and the display circuit 900, respectively.

When the battery power is calculated, the power calculation circuit 300 calculates the current battery power, and the power calculation circuit 300 sends the battery power to the control circuit 800 to cause the control circuit 800 to control the display circuit 900 to display the battery power information. Convenient for human observation.

In a preferred embodiment, the display circuit 900 includes a power display unit 910 and an alarm unit 920; the input of the power display unit 910 is a second controlled end of the display circuit 900, and the alarm unit 920 is used to charge the battery low or The alarm signal is output when it is too high. The battery has an explosion hazard when the battery reaches a high battery threshold, and the battery may be irreversibly damaged when the battery reaches a low battery threshold. Therefore, when it is detected that the battery power reaches the high voltage threshold or the low voltage threshold, the alarm unit 920 can issue an alarm signal to prompt the user to take protective measures. The alarm signal may be a sound signal or a light signal; for example, a specific color indicator light is bright, a short sound is output, and the like.

Hereinafter, the working principle of a preferred embodiment of the battery power detecting device of the present invention will be described with reference to FIGS. 1 and 2.

When detecting the battery power, first, the ratio of each input resistor R1 and output resistor R2 is adjusted according to the corresponding output voltage when the battery is fully charged and the corresponding output voltage when the battery is discharged. So that when the battery power is between 0 and 25%, the first voltage comparison circuit 210 outputs a high level signal, the second voltage comparison circuit 220 outputs a low level signal, and the third voltage comparison circuit 230 outputs a low level signal. The fourth voltage comparison circuit 240 outputs a low level signal; when the battery power is between 25% and 50%, the first voltage comparison circuit 210 outputs a high level signal, and the second voltage comparison circuit 220 outputs a high level signal, The three voltage comparison circuit 230 outputs a low level signal, and the fourth voltage comparison circuit 240 outputs a low level signal; when the battery power is between 50% and 75%, the first voltage comparison circuit 210 outputs a high level signal, and the second The voltage comparison circuit 220 outputs a high level signal, the third voltage comparison circuit 230 outputs a high level signal, and the fourth voltage comparison circuit 240 outputs a low level signal; when the battery power is between 75% and 100%, all comparison units Both output a high level signal.

Then, the battery detecting device is connected to the battery, and the power calculating circuit 300 calculates the current power of the battery according to the voltage comparison signal output by each voltage comparing circuit and sends it to the control circuit 800, so that the control circuit 800 controls the power display unit 910 to display the battery. Current battery.

When the output voltage of the battery is relatively stable, the current detecting circuit 400 detects the operating current of the battery, and sends the detection result to the power calculating circuit 300. The power calculating circuit 300 calculates the battery power according to the detection result of the current detecting circuit 400. It is sent to the control circuit 800, which controls the power display unit 910 to display the battery power.

During the whole detection process, the temperature detecting circuit 600 transmits the temperature information of the battery to the power calculating circuit 300, so that the power calculating circuit 300 can determine the output voltage of the battery or the corresponding relationship between the operating current of the battery and the battery power according to the battery temperature. To calculate the current charge of the battery. When the battery's power reaches a high voltage threshold or a first voltage threshold, the control circuit 800 controls the alarm unit 920 to issue an alarm signal, such as a red light, a specific sound signal, and the like. The power calculation circuit 300 and the control circuit 800 may be disposed in one chip, or may be separately disposed, and are not limited herein.

The present invention also provides a mobile electronic device including the battery power detecting device as described above, and the specific structure of the battery power detecting circuit refers to the above embodiment, since the mobile electronic device adopts all of the above embodiments. The technical solution, therefore, has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be further described herein. Wherein, the mobile electronic device can be a drone, an intelligent robot, and the like.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structural transformation, or direct/indirect use, of the present invention and the contents of the drawings are used in the inventive concept of the present invention. It is included in the scope of the patent protection of the present invention in other related technical fields.

Claims

A battery power detecting device, comprising: a plurality of voltage sampling circuits, a plurality of voltage comparison circuits, and a power calculation circuit, wherein the number of the voltage comparison circuits corresponds to the number of the voltage sampling circuits; The sampling end of the voltage sampling circuit is connected to the battery, and the output ends of the plurality of voltage sampling circuits are connected in one-to-one correspondence with the input ends of the plurality of voltage comparison circuits; the output ends of the plurality of voltage comparison circuits are The power calculation circuit is connected; wherein each of the voltage sampling circuits has different voltage output ratios after voltage sampling of the battery; and the voltage comparison circuit is configured to output a voltage of the voltage sampling circuit connected thereto A predetermined reference voltage is compared, and a corresponding voltage comparison signal is output; the power calculation circuit is configured to calculate a current power of the battery according to an output voltage signal of each of the voltage comparison circuits.
The battery power detecting device according to claim 1, wherein each of said voltage sampling circuits has a predetermined voltage dividing ratio, and respective predetermined voltage dividing ratios of said voltage sampling circuits are different.
The battery power detecting device according to claim 2, wherein said voltage sampling circuit comprises an input resistor and an output resistor; said first end of said input resistor being a sampling end of said voltage sampling circuit, said input resistor The second end is connected to the first end of the output resistor, the connection node is the output end of the voltage sampling circuit, and the second end of the output resistor is grounded.
The battery power detecting device according to claim 3, wherein said input resistance and/or output resistance is an adjustable resistance.
The battery power detecting device according to claim 1, wherein the battery power detecting device further comprises a current detecting circuit, wherein the detecting end of the current detecting circuit is connected to a battery, and an output end of the current detecting circuit Describe the power calculation circuit connection;

The power calculation circuit is further configured to calculate, according to the current detection signal of the current detection circuit, the current power of the battery when each of the voltage comparison circuits outputs a high level signal.
The battery power detecting device according to claim 5, wherein the power calculating circuit is further configured to: when each of the voltage comparing circuits outputs a high level signal, according to an output voltage of each of the voltage comparing circuits The signal and the current detection signal of the current detecting circuit calculate the current amount of power of the battery.
A battery electric quantity detecting apparatus according to claim 6, wherein said battery electric quantity detecting means further comprises temperature detecting circuit for detecting said battery temperature and outputting a corresponding temperature detecting signal, said output end of said temperature detecting circuit Connected to the power calculation circuit;

The power calculation circuit is further configured to calculate, according to the temperature detection signal output by the temperature detection circuit and the output voltage signal of each of the voltage comparison circuits and/or the current detection signal of the current detection circuit, the current current of the battery Electricity.
The battery power detecting device according to claim 1, wherein said battery power detecting means further comprises a display circuit and a control circuit, and said control circuit is connected to said power amount calculating circuit and said display circuit, respectively.
The battery power detecting device according to claim 2, wherein said battery power detecting means further comprises a display circuit and a control circuit, and said control circuit is connected to said power amount calculating circuit and said display circuit, respectively.
The battery power detecting device according to claim 3, wherein said battery power detecting means further comprises a display circuit and a control circuit, and said control circuit is connected to said power amount calculating circuit and said display circuit, respectively.
The battery power detecting device according to claim 4, wherein said battery power detecting means further comprises a display circuit and a control circuit, and said control circuit is connected to said power amount calculating circuit and said display circuit, respectively.
The battery power detecting device according to claim 5, wherein said battery power detecting means further comprises a display circuit and a control circuit, and said control circuit is connected to said power amount calculating circuit and said display circuit, respectively.
The battery power detecting device according to claim 6, wherein said battery power detecting means further comprises a display circuit and a control circuit, and said control circuit is connected to said power amount calculating circuit and said display circuit, respectively.
The battery power detecting device according to claim 7, wherein said battery power detecting means further comprises a display circuit and a control circuit, and said control circuit is connected to said power amount calculating circuit and said display circuit, respectively.
The battery power detecting device according to claim 14, wherein the display circuit comprises a power display unit and an alarm unit; the input end of the power display unit is a first controlled end of the display circuit, The input end of the alarm unit is a second controlled end of the display circuit; the alarm unit is configured to output an alarm signal when the battery power reaches a low battery threshold or a high battery threshold.
A mobile electronic device comprising the battery power detecting device according to any one of claims 1-15.