CN110333454A - Battery voltage detection system and electric toothbrush - Google Patents
Battery voltage detection system and electric toothbrush Download PDFInfo
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- CN110333454A CN110333454A CN201910742020.9A CN201910742020A CN110333454A CN 110333454 A CN110333454 A CN 110333454A CN 201910742020 A CN201910742020 A CN 201910742020A CN 110333454 A CN110333454 A CN 110333454A
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- 238000001514 detection method Methods 0.000 title claims abstract description 88
- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- 230000005611 electricity Effects 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/221—Control arrangements therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of battery voltage detection system and electric toothbrushes, are related to the technical field of electric toothbrush battery detecting, including governor circuit, the first detection circuit, the second detection circuit, normal voltage conversion circuit；The output end of normal voltage conversion circuit is connected with one end of the second detection circuit, and the other end of the second detection circuit is connected on governor circuit；The input terminal of normal voltage conversion circuit is connected with one end of the first detection circuit；The other end of first detection circuit is connected on governor circuit；First voltage of first detection circuit to the input end side of examination criteria voltage conversion circuit；Second voltage of second detection circuit to the output end of examination criteria voltage conversion circuit；Governor circuit is to obtain cell discharge voltage according to first voltage and second voltage.To alleviate many electrical equipments existing in the prior art, setting in advance does not refer to basic voltage and leads to the technical problem for monitoring cell discharge voltage difficulty.
Description
Technical field
The present invention relates to electric toothbrush battery detecting technical field, more particularly, to a kind of battery voltage detection system and
Electric toothbrush.
Background technique
Currently, as Portable electronic equipment in the market is more and more, it is also more next for cell discharge voltage real-time detection
More there is demand, generally requires to be set in advance with reference to basic voltage, to determine cell discharge voltage.However, existing many electricity
Setting does not refer to basic voltage to dynamic equipment in advance, so, when facing this situation in industry, entire detection system can only be replaced,
Or replacement calculates cell discharge voltage with internal reference reference voltage microcontroller, implements more troublesome.
Summary of the invention
The purpose of the present invention is to provide battery voltage detection system and electric toothbrushes, are existed in the prior art with alleviating
Many a electrical equipments in advance setting with reference to basic voltage and cause monitor cell discharge voltage difficulty technical problem.
A kind of battery voltage detection system provided by the invention, comprising: governor circuit, the first detection circuit, the second detection
Circuit, normal voltage conversion circuit；
The input terminal of the normal voltage conversion circuit is connected with one end of second detection circuit, second detection
The other end of circuit is connected on the governor circuit；The output end of the normal voltage conversion circuit and the first detection electricity
The one end on road is connected；The other end of first detection circuit is connected on the governor circuit；
The normal voltage conversion circuit is converted to the discharge voltage of the battery to connect battery in input end side
Normal voltage；
The first voltage of output end of first detection circuit to detect the normal voltage conversion circuit；
The second voltage of input end side of second detection circuit to detect the normal voltage conversion circuit；
The governor circuit is to obtain cell discharge voltage according to the first voltage and the second voltage.
Further, first detection circuit includes: first resistor circuit, and the first end of the first resistor circuit connects
Connect the output end in the normal voltage conversion circuit, the second end ground connection of the first resistor circuit, the first resistor electricity
The third end on road connects the governor circuit；
Second detection circuit includes: second resistance circuit, and the first end of the second resistance circuit is connected to described
The input terminal of normal voltage conversion circuit, the second end ground connection of the second resistance circuit, the third of the second resistance circuit
End connects the governor circuit；
The governor circuit, to the resistance according to the resistance value of the first resistor circuit, the second resistance circuit
Value, the first voltage and the second voltage, obtain cell discharge voltage.
Further, the first resistor circuit includes: first resistor and second resistance, the first end of the first resistor
It is connected to the output end of the normal voltage conversion circuit, the second end series connection second resistance of the first resistor is grounded,
The third end of the first resistor connects the governor circuit.
Further, the second resistance circuit includes: 3rd resistor and the 4th resistance, the first end of the 3rd resistor
It is connected to the input terminal of the normal voltage conversion circuit, the second end of the 3rd resistor is connected the 4th resistance eutral grounding,
The third end of the 3rd resistor connects the governor circuit.
Further, the system also includes display control circuit, the display control circuit and the governor circuit phases
Even；
The governor circuit issues the display control to generate battery capacity situation according to the cell discharge voltage
Circuit processed；
The display control circuit is to show the battery capacity situation.
Further, the system also includes: discharging management circuit, the discharging management circuit are connected with the battery,
The discharging management circuit is to protect the battery.
Further, the discharging management circuit includes controller；
The first end of the controller is connected with anode, and the second end of the controller is connected with battery cathode, institute
State the third end ground connection of controller；
First end and the control of the controller when detecting battery non-normal working, to cut off the controller
The third end of device processed, the battery can be made to stop working.
Further, the system also includes circuit for controlling motor；
The circuit for controlling motor is connected with the supply access of the governor circuit and motor respectively；The power supply of the motor
Circuit includes the circuit of motor and battery composition；
The governor circuit is used to judge cell condition, and judging the improper work of battery according to cell discharge voltage
When making, the supply access of motor is cut off by circuit for controlling motor, stops the operating of motor.
Further, the circuit for controlling motor includes: control switch；
The control terminal of the control switch is connected with the governor circuit, the first end of the control switch and the control
The second end of switch is connected on the supply access of motor；
When the governor circuit is to judge battery non-normal working, control signal is generated；
The control switch to when receiving the control signal, cut off the first end of the control switch with it is described
The second end of control switch, so as to stop the operating of motor.
A kind of electric toothbrush provided by the invention, comprising: the powered toothbrush configurations have described in any one of above-described embodiment
Battery voltage detection system.
Battery voltage detection system provided by the invention and electric toothbrush can pass through the circuit structure of setting are as follows: main
Control circuit, the first detection circuit, the second detection circuit, normal voltage conversion circuit；The input terminal of normal voltage conversion circuit with
One end of second detection circuit is connected, and the other end of the second detection circuit is connected on governor circuit；Normal voltage conversion circuit
Output end be connected with one end of the first detection circuit；The other end of first detection circuit is connected on governor circuit；Standard electric
The discharge voltage of battery is converted to normal voltage to connect battery in input end side by voltage conversion circuit；First detection circuit
The first voltage of output end to examination criteria voltage conversion circuit；Second detection circuit is to detect the normal voltage
The second voltage of the input end side of conversion circuit；Governor circuit obtains cell discharge voltage according to first voltage and second voltage,
The present invention is not necessarily to obtain reference data voltage from outside, so that it may the actual discharge voltage of battery is obtained, to alleviate the prior art
Present in many electrical equipments setting in advance leads to the skill for monitoring cell discharge voltage difficulty with reference to basic voltage
Art problem.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structure chart of battery voltage detection system provided in an embodiment of the present invention；
Fig. 2 is another structure chart of battery voltage detection system provided in an embodiment of the present invention；
Fig. 3 is the circuit structure diagram of governor circuit provided in an embodiment of the present invention；
Fig. 4 is the circuit structure diagram of the first detection circuit provided in an embodiment of the present invention；
Fig. 5 is the circuit structure diagram of the second detection circuit provided in an embodiment of the present invention；
Fig. 6 is the circuit structure diagram of normal voltage conversion circuit provided in an embodiment of the present invention；
Fig. 7 is the circuit structure diagram of display control circuit provided in an embodiment of the present invention；
Fig. 8 is the circuit structure diagram of discharging management circuit provided in an embodiment of the present invention；
Fig. 9 is the circuit structure diagram of circuit for controlling motor provided in an embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Currently, cell discharge voltage real-time monitoring also increasingly has demand, however, existing many electrical equipments are not
Setting in advance refers to basic voltage, meanwhile, for no band internal reference reference voltage microcontroller, setting is with reference to basis electricity
Pressure, it may be necessary to replace entire monitoring system or with changing microcontroller, implement more troublesome.Based on this, the present invention is mentioned
Be supplied with electric power cell voltage detection system and electric toothbrush, is not shifted to an earlier date with alleviating many electrical equipments existing in the prior art
It is arranged with reference to basic voltage and leads to the technical problem for monitoring cell discharge voltage difficulty.
It is described in detail below in conjunction with attached drawing:
As shown in connection with fig. 1, a kind of structure chart of battery voltage detection system is shown, which includes: governor circuit
110, the first detection circuit 120, the second detection circuit 130, normal voltage conversion circuit 140；
The input terminal of the normal voltage conversion circuit 140 is connected with one end of second detection circuit 130, and described
The other end of two detection circuits 130 is connected on the governor circuit 110；The output end of the normal voltage conversion circuit 140
It is connected with one end of first detection circuit 120；The other end of first detection circuit 120 is connected to the governor circuit
On 110；
The normal voltage conversion circuit 140 turns the discharge voltage of the battery to connect battery in input end side
It is changed to normal voltage.Voltage in this way in battery can enter in normal voltage conversion circuit 140, carry out voltage conversion.
The first voltage of output end of first detection circuit 120 to detect the normal voltage conversion circuit；
Wherein, first voltage is voltage relevant to cell discharge voltage.
The second voltage of input end side of second detection circuit 130 to detect the normal voltage conversion circuit；
Wherein, second voltage is voltage relevant to normal voltage.
The governor circuit 110 is to obtain cell discharge voltage according to the first voltage and the second voltage.This
The first voltage and second voltage that sample can be detected according to the first detection circuit and the second detection circuit obtain battery reality
Discharge voltage, without from outside obtain reference data voltage, so that it may obtain the actual discharge voltage of battery, so as to
The working condition of present battery is judged according to the discharge voltage, and when abnormal, can take corresponding measure, to realize battery
Normal work.
Wherein, based on the relationship between voltage and resistance, for example, can be by the way of electric resistance partial pressure, that is, in some realities
It applies in example, the first detection circuit 120 includes: first resistor circuit, and the first end of the first resistor circuit is connected to the mark
The output end of quasi- voltage conversion circuit, the second end ground connection of the first resistor circuit, the third end of the first resistor circuit
Connect the governor circuit；
Second detection circuit 130 includes: second resistance circuit, and the first end of the second resistance circuit is connected to institute
State the input terminal of normal voltage conversion circuit, the second end ground connection of the second resistance circuit, the of the second resistance circuit
Three ends connect the governor circuit；
The governor circuit, to the resistance according to the resistance value of the first resistor circuit, the second resistance circuit
Value, the first voltage and the second voltage, obtain cell discharge voltage.
In conjunction with shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, governor circuit 110, the inspection of the first detection circuit 120, second are respectively illustrated
The circuit diagram of slowdown monitoring circuit 130, normal voltage conversion circuit 140；
As shown in connection with fig. 3, governor circuit 110 includes controller U2, the port AD-V1 and the first detection circuit of controller U2
120 port AD-V1 is connected, and the port AD-V2 of controller U2 is connected with the port AD-V2 of the second detection circuit 130.
As shown in connection with fig. 4, the circuit structure of the first detection circuit 120, the first resistor circuit include: first resistor R1
With second resistance R2, the first end of the first resistor R1 is connected to the output end of the normal voltage conversion circuit, and described
The second end series connection of the one resistance R1 second resistance R2 ground connection, the third end of the first resistor R1 can be connected with series resistance R5
Connect the governor circuit 110.
As shown in connection with fig. 5, the circuit structure of the second detection circuit 130, the second resistance circuit include: 3rd resistor R3
With the 4th resistance R4, the first end of the 3rd resistor R3 is connected to the input terminal of the normal voltage conversion circuit 140, described
The second end series connection of 3rd resistor R3 the 4th resistance R4 ground connection, the third end of the 3rd resistor R3 can be with series resistance R6
Connect the governor circuit 110.
As shown in connection with fig. 6, the circuit structure of normal voltage conversion circuit 140, including controller U3, the first of controller U3
End is connected with anode, and is grounded by capacitor C8, and the second end of controller U3 is grounded, and the third end of controller U3 connects the
The port (VOUT) of one detection circuit, and be grounded by capacitor C9, and be grounded by capacitor C10.
In conjunction with the circuit structure of Fig. 4 and Fig. 5, the calculating process of controller U2 can be with are as follows:
First detection circuit: it is divided by resistance R1 and R2, detects that first voltage V1 is as follows:
V1=V (out) * R2/ (R1+R2)) (1)；
Microcontroller ADC module (analog quantity turns digital module) is applied using in controller U2, detects the first electricity
Pressure V1 corresponding A D value is AD_V1:
AD_V1=V1*2^n/V (bat) (2)；
Second detection circuit: it is divided by resistance R3 and R4, detects that V2 voltage is as follows:
V2=V (bat) * R4/ (R3+R4) (3)；
Microcontroller ADC module (analog quantity turns digital module) is applied using in controller U2, detects that V2 is corresponding
AD value is AD_V2:
AD_V2=V2*2^n/V (bat) (4)；
In conjunction with above four equatioies, it is as follows that cell discharge voltage V (bat) equation can be extrapolated:
V (bat)=V (out) * R2* (R3+R4) * AD_V2/ (R4* (R1+R2) * AD_V1 (5)；
Design is to take resistance R3=R1, when R4=R2, is simplified equation (5):
V (bat)=V (out) * AD_V2/*AD_V1 (6)；
According to equation (5) or (6), and known resistance R1, R2, R3, R4, normal voltage V (out), detection V1 corresponding A D value
It is AD_V2 for AD_V1, detection V2 corresponding A D value, so that it may calculate cell discharge voltage V (bat).
In order to enable user more connects the charge condition of electric toothbrush, in some embodiments, the system also includes:
Display control circuit 150, the display control circuit 150 are connected with the governor circuit 110；
The governor circuit 110 is to generate battery capacity situation, issue the display according to the cell discharge voltage
Control circuit 150；Since the discharge voltage of battery has threshold value, when being more than the discharge voltage of battery, battery will appear over-discharge
The case where, so when governor circuit 110 detects current cell voltage, it can be determined that whether current cell voltage is more than battery
The threshold value of discharge voltage then generates the charge condition not electric about battery, if not above pass is generated if more than
In battery, there are also the charge conditions of electricity.
The display control circuit 150 is to show charge condition.Show that charge condition can use light emitting diode, when
When out of power, flashing can be carried out and shown, when there is electricity, can carry out growing bright display.
As an example, as shown in connection with fig. 7, a kind of display control circuit is shown, includes two in display control circuit
A LED light, a LED light can show charge condition, another can show that electric toothbrush is each other than electricity is shown
The quantity of the display situation of a mode, light emitting diode can be depending on the case where display.
Certainly, display control circuit can also include display, can show the numerical value of specific battery discharging circuit.
It in systems, can be to above-mentioned electricity in the case that supplier of electricity is in addition to that can use external connection battery or external power supply
Line structure, such as governor circuit power supply.It as shown in connection with fig. 2, can also in the system include battery 160；The battery 160
It is connected with the governor circuit 110；
The battery 160 for the governor circuit 110 to power.
In some embodiments, as shown in connection with fig. 2, the system also includes discharging management circuit 170, the discharge tubes
Reason circuit 170 is connected with the battery 160, and the discharging management circuit 170 is to protect the battery.
As shown in connection with fig. 8, discharging management circuit includes: controller U1, resistance R1, capacitor C1, wherein the of controller U1
One end (vdd terminal) connects battery cathode, controller by resistance R1 connection anode, the second end (end GND) of controller U1
The third end (end VM) of U1 is grounded, after discharging management circuit 170 detects the voltage of battery discharge more than minimum cell voltage,
Or when discovery circuit short circuit etc. battery non-normal working, the first end of the controller and the third end of controller are cut off,
Battery can be made to stop working, so as to achieve the purpose that hardware protection.
In some embodiments, the system also includes circuit for controlling motor 180；
The circuit for controlling motor 180 is connected with the supply access of the governor circuit 110 and motor respectively；The motor
Power supply circuit include motor and battery composition circuit；The governor circuit 110 is used to judge electricity according to cell discharge voltage
Pond situation, and when judging battery non-normal working, the supply access of motor is cut off by circuit for controlling motor 180, is stopped
The operating of motor.
As shown in connection with fig. 9, the circuit for controlling motor 180 includes control switch Q1；
The control terminal of the control switch Q1 is connected with the governor circuit 110, the first end of the control switch Q1 and
The second end of the control switch is connected on the supply access of motor, wherein the supply access of motor can connect for battery
Motor is finally grounded the supply access of shape motor, that is, the first end series electric motor and the electricity of Ke Yiwei, the control switch Q1
Pond is connected, the second end ground connection of the control switch Q1；
The governor circuit 110 is for generating enabling signal when judging normal battery operation；
The control switch Q1 to when receiving the enabling signal, be connected the first end of the control switch Q1 with
The second end of the control switch Q1, so that the motor M works.
The governor circuit 110 is for when judging battery non-normal working, generating control signal；
The control switch Q1 to when receiving the control signal, cut off the first end of the control switch Q1 with
The second end of the control switch Q1, so as to stop the operating of motor.
The present embodiment further includes a kind of electric toothbrush, comprising: the powered toothbrush configurations have any one of above-described embodiment institute
The battery voltage detection system stated.
Electric toothbrush provided by the invention, due to including the described in any item battery voltage detection systems of above-described embodiment,
Thus it is possible to the output end by the first detection circuit in battery voltage detection system to examination criteria voltage conversion circuit
The first voltage of side, the second voltage of input end side of second detection circuit to detect the normal voltage conversion circuit are main
Control circuit is not necessarily to obtain cell discharge voltage from outside acquisition reference data voltage according to first voltage and second voltage, with slow
Solving many electrical equipments existing in the prior art, setting in advance does not cause to monitor battery discharge electricity with reference to basic voltage
Press difficult technical problem.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of battery voltage detection system characterized by comprising governor circuit, the first detection circuit, the second detection electricity
Road, normal voltage conversion circuit；
The input terminal of the normal voltage conversion circuit is connected with one end of second detection circuit, second detection circuit
The other end be connected on the governor circuit；The output end of the normal voltage conversion circuit and first detection circuit
One end is connected；The other end of first detection circuit is connected on the governor circuit；
The discharge voltage of the battery is converted to standard to connect battery in input end side by the normal voltage conversion circuit
Voltage；
The first voltage of output end of first detection circuit to detect the normal voltage conversion circuit；
The second voltage of input end side of second detection circuit to detect the normal voltage conversion circuit；
The governor circuit is to obtain cell discharge voltage according to the first voltage and the second voltage.
2. battery voltage detection system according to claim 1, which is characterized in that
First detection circuit includes: first resistor circuit, and the first end of the first resistor circuit is connected to the standard
The output end of voltage conversion circuit, the second end ground connection of the first resistor circuit, the third end of the first resistor circuit connects
Connect the governor circuit；
Second detection circuit includes: second resistance circuit, and the first end of the second resistance circuit is connected to the standard
The input terminal of voltage conversion circuit, the second end ground connection of the second resistance circuit, the third end of the second resistance circuit connects
Connect the governor circuit；
The governor circuit, to according to the resistance value of the first resistor circuit, the resistance value of the second resistance circuit, institute
First voltage and the second voltage are stated, cell discharge voltage is obtained.
3. battery voltage detection system according to claim 2, which is characterized in that the first resistor circuit includes:
One resistance and second resistance, the first end of the first resistor is connected to the output end of the normal voltage conversion circuit, described
The second end series connection of the first resistor second resistance ground connection, the third end of the first resistor connects the governor circuit.
4. battery voltage detection system according to claim 2, which is characterized in that the second resistance circuit includes:
Three resistance and the 4th resistance, the first end of the 3rd resistor is connected to the input terminal of the normal voltage conversion circuit, described
Second end series connection the 4th resistance eutral grounding of 3rd resistor, the third end of the 3rd resistor connects the governor circuit.
5. battery voltage detection system according to claim 1, which is characterized in that the system also includes: display control
Circuit, the display control circuit are connected with the governor circuit；
The governor circuit issues the display control electricity to generate battery capacity situation according to the cell discharge voltage
Road；
The display control circuit is to show the battery capacity situation.
6. battery voltage detection system according to claim 1, which is characterized in that the system also includes: electric discharge management
Circuit, the discharging management circuit are connected with the battery, and the discharging management circuit is to protect the battery.
7. battery voltage detection system according to claim 6, which is characterized in that the discharging management circuit includes control
Device；
The first end of the controller is connected with anode, and the second end of the controller is connected with battery cathode, the control
The third end of device processed is grounded；
The controller to when detecting battery non-normal working, cut off the controller first end and the controller
Third end, the battery can be made to stop working.
8. battery voltage detection system according to claim 1, which is characterized in that the system also includes: motor control
Circuit,
The circuit for controlling motor is connected with the supply access of the governor circuit and motor respectively；The power supply circuit of the motor
Circuit including motor and battery composition；
The governor circuit be used for according to cell discharge voltage, judge cell condition, and when judging battery non-normal working,
The supply access that motor is cut off by circuit for controlling motor, stops the operating of motor.
9. battery voltage detection system according to claim 8, which is characterized in that the circuit for controlling motor includes: control
System switch；
The control terminal of the control switch is connected with the governor circuit, the first end of the control switch and the control switch
Second end be connected on the supply access of motor；
When the governor circuit is to judge battery non-normal working, control signal is generated；
First end and the control of the control switch when receiving the control signal, to cut off the control switch
The second end of switch, so as to stop the operating of motor.
10. a kind of electric toothbrush characterized by comprising the powered toothbrush configurations have the right to require 1-9 described in any item
Battery voltage detection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742020.9A CN110333454A (en) | 2019-08-08 | 2019-08-08 | Battery voltage detection system and electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742020.9A CN110333454A (en) | 2019-08-08 | 2019-08-08 | Battery voltage detection system and electric toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110333454A true CN110333454A (en) | 2019-10-15 |
Family
ID=68149437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910742020.9A Pending CN110333454A (en) | 2019-08-08 | 2019-08-08 | Battery voltage detection system and electric toothbrush |
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| Country | Link |
|---|---|
| CN (1) | CN110333454A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203630198U (en) * | 2013-12-13 | 2014-06-04 | 北京海泰方圆科技有限公司 | Battery voltage detection circuit |
| CN105044603A (en) * | 2015-06-05 | 2015-11-11 | 福州瑞芯微电子有限公司 | Low-power low-cost lithium battery voltage detection circuit and method |
-
2019
- 2019-08-08 CN CN201910742020.9A patent/CN110333454A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203630198U (en) * | 2013-12-13 | 2014-06-04 | 北京海泰方圆科技有限公司 | Battery voltage detection circuit |
| CN105044603A (en) * | 2015-06-05 | 2015-11-11 | 福州瑞芯微电子有限公司 | Low-power low-cost lithium battery voltage detection circuit and method |
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