CN108022579A - Sounding regulating device, adjusting method and the household electrical appliance of a kind of buzzer - Google Patents
Sounding regulating device, adjusting method and the household electrical appliance of a kind of buzzer Download PDFInfo
- Publication number
- CN108022579A CN108022579A CN201810040784.9A CN201810040784A CN108022579A CN 108022579 A CN108022579 A CN 108022579A CN 201810040784 A CN201810040784 A CN 201810040784A CN 108022579 A CN108022579 A CN 108022579A
- Authority
- CN
- China
- Prior art keywords
- resistance
- buzzer
- circuit
- switch
- capacitance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005611 electricity Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000005669 field effect Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
- G10K9/125—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means with a plurality of active elements
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The embodiment of the invention discloses sounding regulating device, adjusting method and the household electrical appliance of a kind of buzzer.Device includes：The buzzer having a first end and a second end；The first resistor being connected respectively with the first end and second end of buzzer；The first on-off circuit being connected with buzzer；The voltage regulator module being connected with the first end of buzzer；The first power supply being connected with voltage regulator module, and the control module being connected respectively with voltage regulator module and the first on-off circuit, control module sends the first pwm signal to the first on-off circuit, to control the tone of buzzer, and the second pwm signal is sent to voltage regulator module according to target volume, volume adjustment is realized with the voltage of adjustment input to buzzer.Change the voltage of buzzer in the embodiment of the present invention by adjusting the duty cycle of pwm signal, realize that the sounding of buzzer is adjustable, user can voluntarily select suitable sound according to different use environments.
Description
Technical field
The present embodiments relate to intelligent appliance technical field, a kind of sounding regulating device more particularly to buzzer,
Adjusting method and household electrical appliance.
Background technology
For household electrical appliance generally use buzzer as microphone device, the conventional drive signal of buzzer, is by a fixation
The frequency signal of duty cycle is driven, and sends the sound of fixed decibel.
In process of the present invention is realized, inventor has found that at least there are the following problems in correlation technique：It is of the prior art
The buzzer sound size of household electrical appliance cannot be adjusted, can only be by selecting the buzzer of different decibels to produce different volumes.
If the buzzer volume that household electrical appliance are selected is low, user is not easy to hear under the big environment of noise；The buzzer volume of selection
Gao Shi, sound is ear-piercing under quiet environment.Therefore buzzer volume of the prior art can not be adjusted as needed, be user
Using bringing inconvenience.
The content of the invention
The embodiment of the present invention is mainly solving the technical problems that provide a kind of sounding regulating device of buzzer, adjusting method
And household electrical appliance, it can solve the problems, such as that buzzer volume in the prior art and tone can not be adjusted.
In order to solve the above technical problems, the technical solution that the embodiment of the present invention uses is：A kind of buzzer is provided
Sounding regulating device, including：
Buzzer, the buzzer have a first end and a second end；
First resistor, the first end and second end of the first resistor first end and second end with the buzzer respectively
It is connected；
First on-off circuit, the buzzer are grounded by first on-off circuit；
Voltage regulator module, the voltage regulator module are connected with the first end of the buzzer, for adjusting input extremely
The voltage of the buzzer；
First power supply, first power supply are connected with the voltage regulator module, for being carried for the voltage regulator module
Voltage supplied, and
Control module, is connected with the voltage regulator module and first on-off circuit respectively, and the control module is used
In sending the first pwm signal to first on-off circuit, to control the tone of the buzzer, and according to target volume to institute
State voltage regulator module and send the second pwm signal, so that voltage of the voltage regulator module adjustment input to the buzzer
Realize volume adjustment.
Alternatively, first on-off circuit includes：
Second resistance, the first end of the second resistance are connected with the control module；
3rd resistor, the first end of the 3rd resistor are connected with the second end of the second resistance, the 3rd resistor
Second end and ground connection；
4th switch, the first end of the 4th switch are connected with the second end of the buzzer, the 4th switch
Second end is grounded, and the control terminal of the 4th switch is connected with the first end of the 3rd resistor.
Alternatively, the voltage regulator module includes：
Second on-off circuit, the control terminal of second on-off circuit are connected with the control module, second break-make
Circuit input end is connected with first power supply；
First capacitance, the cathode of first capacitance first end with the buzzer and second on-off circuit respectively
Output terminal be connected, the anode of first capacitance ground connection, for powering for the buzzer；
4th resistance, the first end of the 4th resistance are connected with the cathode of first capacitance, the 4th resistance
Second end is grounded；
The control module is used to send second pwm signal to second on-off circuit, adjusts the first power supply pair
The time of the first capacitance charging, so as to adjust the first capacitance output voltage, realizes that adjustment inputs the buzzer
Voltage.
Alternatively, second on-off circuit includes：
5th resistance, the first end of the 5th resistance are connected with the control module；
6th resistance, the first end of the 6th resistance are connected with the second end of the 5th resistance, the 6th resistance
Second end ground connection；
3rd switch, the control terminal of the 3rd switch are connected with the first end of the 6th resistance, the 3rd switch
Second end ground connection；
7th resistance, the first end of the 7th resistance are connected with the first end of the described 3rd switch；
8th resistance, the first end of the 8th resistance are connected with the second end of the 7th resistance；
9th resistance, the first end of the 9th resistance are connected with the first power supply, the second end of the 9th resistance and institute
The second end for stating the 8th resistance is connected；
5th switch, the 5th switch first end are connected with the second end of the 9th resistance, the 5th switch
Second end is connected with the cathode of first capacitance, the control terminal and the second end phase of the 7th resistance of the 5th switch
Even.
Alternatively, the voltage regulator module further includes：
3rd on-off circuit, the control terminal of the 3rd on-off circuit are connected with the control module；
Second capacitance, the second capacitance anode is connected with the output terminal of the 3rd on-off circuit, and is grounded；
Tenth resistance, the first end of the tenth resistance are connected with second capacitance cathode, and the of the tenth resistance
Two ends are connected with the first end of the buzzer；
11st resistance, the first end of the 11st resistance are connected with the first end of the buzzer；
4th on-off circuit, the input terminal of the 4th on-off circuit are connected with the cathode of first capacitance, and described
The output terminal of four on-off circuits is connected with the other end of the 11st resistance, the control terminal of the 4th on-off circuit with it is described
The input terminal of 3rd on-off circuit is connected；
The control module controls the 3rd on-off circuit to turn on by the 3rd pwm signal, in the 3rd power on/off
When road turns on, the 4th on-off circuit conducting, first capacitance is described second to the buzzer input voltage
Capacitance charges, and when the 3rd on-off circuit is closed, second capacitance is powered to the buzzer, produces last or end syllable.
3rd on-off circuit includes：
12nd resistance, the first end of the 12nd resistance are connected with the control module；
13rd resistance, the first end of the 13rd resistance are connected with the second end of the 12nd resistance, and described
The second end ground connection of 13 resistance；
Second switch, the control terminal of the second switch are connected with the first end of the 13rd resistance, and described second opens
The first end of pass is connected with the 4th on-off circuit, the second end ground connection of the second switch.
Alternatively, the 4th on-off circuit includes：
14th resistance, the first end of the 14th resistance are connected with the cathode of first capacitance,
15th resistance, the first end of the 15th resistance are connected with the second switch, the 15th resistance
Second end is connected with the second end of the 14th resistance；
First switch, the control terminal of the first switch are connected with the second end of the 14th resistance, and described first opens
The first end of pass is connected with the first end of the 14th resistance, the second end of the first switch and the 11st resistance
Second end is connected.
Alternatively, described device further includes second source, and the second source is connected with the control module, for for institute
State control module power supply.
Another embodiment of the present invention provides a kind of sounding adjusting method of buzzer, wherein, method includes：
Obtain sounding instruction；Instructed according to the sounding, determine buzzer tone to be sent and volume；According to institute
Tone is stated, produces the first pwm signal to control the buzzer to send the tone；According to the volume, the 2nd PWM letters are produced
Number to control the buzzer to send the volume.
The definite buzzer of instruction last or end syllable to be sent occurs according to described；
According to the last or end syllable, the 3rd pwm signal is produced to control the buzzer to send the last or end syllable.
Another embodiment of the present invention provides a kind of household electrical appliance, and the household electrical appliance include：Buzzing described above
The sounding adjusting apparatus of device.
An embodiment of the present invention provides sounding regulating device, adjusting method and the household electrical appliance of a kind of buzzer, pass through tune
The duty cycle for saving pwm signal changes the voltage of buzzer, realizes that volume is adjustable, so that user can be according to different use environments certainly
Row selects suitable volume and tone, meets alternative sounds demand of the user to buzzer.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the embodiment of the present application, will make below to required in the embodiment of the present application
Attached drawing is briefly described.It should be evident that drawings described below is only some embodiments of the present application, for
For those of ordinary skill in the art, without creative efforts, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the circuit diagram of the sounding regulating device of buzzer provided in an embodiment of the present invention；
Fig. 2 is the circuit diagram of the sounding regulating device for the buzzer that further embodiment of this invention provides；
Fig. 3 is a kind of flow diagram of the sounding adjusting method for buzzer that another embodiment of the present invention provides；
Fig. 4 is a kind of structure diagram for household electrical appliance that further embodiment of this invention provides.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is described in further detail.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
Below with reference to the accompanying drawings sounding regulating device, adjusting method and the household electric of buzzer in the embodiment of the present invention are described
Device.
Refering to Fig. 1, Fig. 1 is the circuit diagram of the sounding regulating device of the buzzer of the embodiment of the present invention.Such as Fig. 1 institutes
Show, the sounding regulating device 10 of the buzzer includes：Buzzer BUZ, first resistor R1, the first on-off circuit 100, voltage adjustment
Module 200, the first power supply VCC and control module 300.
Wherein, buzzer BUZ has a first end and a second end；The first end of buzzer BUZ is connected with the first power supply VCC,
BUZ points of buzzer is electromagnetic buzzer and piezo buzzer.An example according to the present invention, buzzer BUZ are piezoelectricity
Formula buzzer.Buzzer BUZ is microphone device, by applying voltage, buzzing between the first end and second end of buzzer BUZ
Device BUZ can be with sounding.In order to improve the sounding of buzzer of the prior art dullness, the buzzer BUZ of the embodiment of the present invention is also
Music buzzer can be used.
First end and second end of the first end and second end of first resistor R1 respectively with buzzer BUZ is connected, i.e., and first
Resistance R1 is in parallel with buzzer BUZ；The control terminal of first on-off circuit 100 is connected with control module 300, the first on-off circuit
100 output head grounding, the input terminal of the first on-off circuit are connected with the second end of buzzer BUZ；VRM Voltage Regulator Module 200 with
The first end of buzzer BUZ is connected, for adjusting the voltage of input buzzer BUZ；Control module 300 and VRM Voltage Regulator Module
200 are connected, for sending the first pwm signal by the first on-off circuit 100, to control the tone of buzzer, according to target sound
Measure to voltage regulator module and send the second pwm signal, so that voltage of the VRM Voltage Regulator Module adjustment input to buzzer, so as to adjust
Save the volume of buzzer.Wherein PWM is Pulse Width Modulation, and Chinese translation is pulse width modulation.
Alternatively, the first on-off circuit 100 includes：Second resistance R2,3rd resistor R3 and the 4th switch TR4.Second electricity
The first end of resistance R2 is connected with control module 300, and the second end of second resistance R2 is connected with the first end of 3rd resistor R3, and the 3rd
The second end of resistance R3 and ground connection；The first end of 4th switch TR4 is connected with the second end of buzzer BUZ, the 4th switch TR4's
Second end is grounded, and the control terminal of the 4th switch TR4 is connected with the first end of 3rd resistor R3.
Specifically, the 4th switch TR4 is switching transistor.4th switch TR4 can be NPN type triode, the collection of triode
Electrode is the 4th first end for switching TR4, and the transmitting the extremely the 4th of triode switchs the second end of TR4, and the base stage of triode is
The control terminal of 4th switch TR4.
Specifically, control module 300 sends the first pwm signal to the 4th control terminal for switching TR4 by second resistance R2,
With the conducting and closing of the switch of control the 4th TR4.Specifically, when the first pwm signal exports high level, the 4th switch TR4 is led
It is logical, make have voltage application, buzzer BUZ sounding between the first end and second end of buzzer BUZ；When the first pwm signal exports
During low level, the 4th switch TR4 is closed, and no-voltage applies between making the first end and second end of buzzer BUZ, buzzer BUZ
Stop sounding, the first pwm signal determines the audible frequency of buzzer BUZ, that is, determines the tone of buzzer BUZ.
Control module 300 sends the first pwm signal and sends the second pwm signal to voltage regulator module 200 at the same time, to pass through
Voltage regulator module 200 adjusts the voltage at buzzer BUZ both ends, specifically, when the voltage at buzzer BUZ both ends reduces, bee
Device BUZ volumes of ringing reduce；When the voltage increase at buzzer BUZ both ends, the rise of buzzer BUZ volumes.
Therefore, the volume adjustment device of the buzzer proposed in the embodiment of the present invention, control module 300 pass through 3rd resistor
R3 sends the first PWM waveform, control buzzer sounding with stopping sounding, while control module 300 according to target volume to voltage
Adjust module 200 and send the second pwm signal, so that the voltage of the adjustment of voltage regulator module 200 input to buzzer BUZ realize sound
Amount is adjusted, and meets the volume demand under the varying environment of user, is brought conveniently using buzzer for user.
The voltage regulator module 200 of the embodiment of the present invention is described in detail with reference to Fig. 2.
According to one embodiment of present invention, as shown in Fig. 2, voltage regulator module 200 includes：Second on-off circuit 201,
First capacitance C1 and the 4th resistance R4.
Wherein, the control terminal of the second on-off circuit 201 is connected with control module 300, the second on-off circuit input terminal 201 with
First power supply VCC is connected；The cathode of first capacitance C1 is defeated with the first end of buzzer BUZ and the second on-off circuit 201 respectively
Outlet is connected, the anode ground connection of the first capacitance C1, for powering for buzzer BUZ；The first end of 4th resistance R4 and the first electricity
The cathode for holding C1 is connected, the R4 second ends ground connection of the 4th resistance.
Specifically, control module 300 is used to send the second pwm signal to the second on-off circuit 201, adjusts the first power supply
The time that VCC charges the first capacitance C1, so as to adjust the output voltage of the first capacitance C1, realizes adjustment input buzzer BUZ
Voltage.The voltage regulation limits of first capacitance C1 are 0-VCC.
Alternatively, as shown in Fig. 2, the second on-off circuit 201 includes：5th resistance R5, the 6th resistance R6, the 3rd switch
TR3, the 7th resistance R7, the 8th resistance R8, the switches of the 9th resistance R9 and the 5th Q1.
The first end of 5th resistance R5 is connected with control module 300；The first end of 6th resistance R6 is with the 5th resistance R5's
Second end is connected, the second end ground connection of the 6th resistance R6；The control terminal and the first end phase of the 6th resistance R6 of 3rd switch TR3
Even, the second end ground connection of the 3rd switch TR3；The first end of 7th resistance R7 is connected with the first end of the 3rd switch TR3；8th electricity
The first end of resistance R8 is connected with the second end of the 7th resistance R7；The first end of 9th resistance R9 is connected with the first power supply VCC, and the 9th
The second end of resistance R9 is connected with the second end of the 8th resistance R8；5th switch Q1 first ends and the second end phase of the 9th resistance R9
Even, the second end of the 5th switch Q1 is connected with the cathode of the first capacitance C1, and the control terminal of the 5th switch Q1 is with the 7th resistance R7's
Second end is connected.
Wherein, the 3rd switch TR3 is switching transistor.3rd switch TR3 can be NPN type triode, the current collection of triode
The first end of extremely the 3rd switch TR3, the second end of the switch of transmitting the extremely the 3rd TR3 of triode, the base stage of triode are the
The control terminal of three switch TR3.5th switch Q1 is field-effect transistor.The drain electrode of field-effect transistor is the of the 5th switch Q1
One end, the source electrode of field-effect transistor is the second end of the 5th switch Q1, and the grid of field-effect transistor is the 5th switch Q1's
Control terminal.
Specifically, the second pwm signal that control module 300 exports for example passes through the low and high level signal of the second pwm signal
Control the conducting and closing of the 3rd switch TR3.More specifically, when the second pwm signal of control module output is high level signal
When, the 3rd switch TR3 conductings, the 5th switch Q1 conductings, the first power supply VCC charges for the first capacitance C1, when control module 300 is defeated
When the second pwm signal gone out is low level signal, the 3rd switch TR3 is closed, and the 5th switch Q1 is closed, and the first capacitance C1 is buzzing
Device provides voltage.By adjusting the change in duty cycle of the second pwm signal, change the ON times of three switch TR3, and then change the
After the charging interval of one capacitance C1, the voltage of the first capacitance C1 also changes, and the voltage of corresponding buzzer BUZ also becomes
Change, the corresponding change of volume of buzzer BUZ.
Alternatively, as shown in Fig. 2, voltage regulator module 200 further includes：3rd on-off circuit 202, the second capacitance C2,
Ten resistance R10, the 11st resistance R11 and the 4th on-off circuit 203.
Wherein, the control terminal of the 3rd on-off circuit 202 is connected with control module 300；Second capacitance C2 cathodes and the tenth electricity
The first end of R10 is hindered, the second capacitance C2 anode are connected with the output terminal of the 3rd on-off circuit 202, and are grounded；Tenth resistance
The second end of R10 is connected with the first end of buzzer BUZ；The first end of 11st resistance R11 and the first end phase of buzzer BUZ
Even；The input terminal of 4th on-off circuit 203 is connected with the cathode of the first capacitance C1, the output terminal of the 4th on-off circuit 203 and
The other end of 11 resistance R11 is connected, and the control terminal of the 4th on-off circuit 203 is connected with the input terminal of the 3rd on-off circuit 202；
Control module 300 is additionally operable to send the 3rd pwm signal to the 3rd on-off circuit 202, specifically, control module 202
The 3rd on-off circuit 202 is controlled to turn on by the 3rd pwm signal, when the 3rd on-off circuit 202 turns on, the 4th on-off circuit
203 conductings, the first capacitance C1 charge to buzzer input voltage, while for the second capacitance C2, are closed in the 3rd on-off circuit 202
When, the 4th on-off circuit 202 is closed, and the second capacitance C2 powers to buzzer BUZ, produces last or end syllable.
Alternatively, as shown in Fig. 2, the 3rd on-off circuit 202 includes：12nd resistance R12, the 13rd resistance R13 and
Two switch TR2.
Wherein, the first end of the 12nd resistance R12 is connected with control module 300；The first end of 13rd resistance R13 and the
The second end of 12 resistance R12 is connected, the second end ground connection of the 13rd resistance R13；The control terminal of second switch TR2 and the 13rd
The first end of resistance R13 is connected, and the first end of second switch TR2 is connected with the 4th on-off circuit 203, and the of second switch TR2
Two ends are grounded.
Specifically, second switch TR2 is switching transistor.Second switch TR2 can be NPN type triode, the collection of triode
Electrode is the first end of second switch TR2, and the transmitting extremely second end of second switch TR2, the base stage of triode of triode is
The control terminal of second switch TR2.
Alternatively, as shown in Fig. 2, the 4th on-off circuit 203 includes：14th resistance R14, the 15th resistance R15 and
One switch TR1.
Wherein, the first end of the 14th resistance R14 is connected with the cathode of the first capacitance C1；The first of 15th resistance R15
End is connected with second switch TR2, and the second end of the 15th resistance R15 is connected with the second end of the 14th resistance R14；First switch
The control terminal of TR1 is connected with the second end of the 14th resistance R14, and the of the first end of first switch TR1 and the 14th resistance R14
One end is connected, and the second end of first switch TR1 is connected with the second end of the 11st resistance R11.
Wherein, first switch TR1 is switching transistor.3rd switch TR1 can be PNP type triode, the current collection of triode
The extremely first end of first switch TR1, the transmitting extremely second end of first switch TR1 of triode, the base stage of triode are the
The control terminal of one switch TR1.
When it is implemented, control module 300 exports the conducting and cut-off of the 3rd pwm signal control second switch TR2.Example
Such as, when the 3rd pwm signal that control module 300 exports is high level, second switch TR2 conductings, first switch TR1 conductings, the
One capacitance C1 provides input voltage for buzzer BUZ, and is charged by second switch TR1 for the second capacitance C2.Control module 300
When 3rd pwm signal of output is low level, second switch TR2 is closed, and second switch TR1 is closed, and the second capacitance C2 is buzzing
Device BUZ provides input voltage, produces last or end syllable.The duty cycle of the 3rd pwm signal can be adjusted by control module, adjusts the second capacitance
The charging voltage of C2, realizes and the volume of last or end syllable is controlled, and voltage is complete not with the voltage change of the first capacitance C1 between ensureing tail
It is whole to keep setting tone output.
Alternatively, as shown in Fig. 2, device further includes second source VDD, second source VDD is connected with control module 300,
Power for module 300 in order to control.
Alternatively, as shown in Fig. 2, control module 300 is microcontroller.Contain several pins in microcontroller IC1, VDD draws
Foot, BUZ_P pins, BUZ_F pins, BUZV pins and GND pin.
Wherein, VDD pins connect second source VDD, BUZ_P pin and are connected with the first end of the 12nd resistance R12；BUZ_F
Pin is connected with the first end of second resistance R2, and BUZ_V pins are connected with the first end of the 5th resistance R5；GND pin is grounded.
Another embodiment of the present invention provides a kind of sounding adjusting method of buzzer, wherein, the sounding of buzzer
Regulating device includes music buzzer, as shown in figure 3, method includes：
Step 400：Obtain sounding instruction；
The sounding instruction of input is obtained, sounding instruction can be that user inputs the sounding regulating device according to sounding demand
Or be provided with the household electrical appliances of the sounding regulating device preset after be sent to the sounding regulating device, wherein, the hair
Vocal command includes the information such as tone to be made a sound, volume and sound duration.
Step 500：Instructed according to sounding, determine the tone and volume of buzzer sound to be sent.
Determine the tone and volume of buzzer sound to be sent respectively according to sounding instruction.
Step 600：According to the tone, the first pwm signal is produced to control the buzzer to send the tone；According to
The volume, produces the second pwm signal to control the buzzer to send the volume.
Specifically, when including the pre-set tone of user and volume in sounding instruction, then according to the sound confirmed
Adjust, the control module in the sounding regulating device is produced the first pwm signal to control buzzer to send the sound by circuit
The sound of tune；
According to identified volume, the control module in the sounding regulating device is set to produce the second pwm signal to pass through electricity
Road control buzzer sends the sound of the volume；When not including the pre-set tone of user and volume in sounding instruction,
The tone and volume that buzzer makes a sound then are controlled according to the tone and volume given tacit consent in device.
Step 700：Instructed according to sounding and determine the 3rd pwm signal to control the buzzer to produce last or end syllable.
Instructed according to sounding and determine sound duration, when the time span that buzzer makes a sound reaches the sound duration,
The control module in the sounding regulating device is set to produce the 3rd pwm signal to control buzzer to produce last or end syllable by circuit.
When it is implemented, the BUZ_F pins of the sound microcontroller IC1 produced as needed export the first pwm signal, control
Music buzzer tone；According to user setting volume input condition, the BUZ_V pins of IC start the second pwm signal of output, adjustment
First capacitance C1 both end voltage values, 0~VCC of controlled range；The BUZ_P pins control second of the sound IC1 produced as needed
Switch TR2 to open, the first capacitance C1 voltages are supplied to buzzer sounding, and charge at the same time to the second capacitance C2；Second switch
The voltage of the first capacitance C1 will be cut off when TR2 is turned off, and be changed from the second capacitance C2 to buzzer BUZZ and be provided power supply, produce tail
Sound；The above process constantly repeats, you can produces the adjustable chord music of volume.
The embodiment of the present invention additionally provides a kind of household electrical appliance.As shown in figure 4, household electrical appliance 1 include above-described embodiment institute
The sounding adjusting apparatus 10 for the buzzer stated.Correlation technique feature may refer to the embodiment of the sounding adjusting apparatus of buzzer,
In addition repeat no more.Household electrical appliance include being not limited to the electric appliance that electric cooker, electric pressure cooking saucepan, air-conditioning, refrigerator etc. are provided with buzzer
Equipment.
The foregoing is merely the embodiment of the present invention, is not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made, is directly or indirectly used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (11)
- A kind of 1. sounding regulating device of buzzer, it is characterised in that including：Buzzer, the buzzer have a first end and a second end；First resistor, the first end and second end of the first resistor first end and second end phase with the buzzer respectively Even；First on-off circuit, the buzzer are grounded by first on-off circuit；Voltage regulator module, the voltage regulator module are connected with the first end of the buzzer, are inputted for adjusting to described The voltage of buzzer；First power supply, first power supply are connected with the voltage regulator module, for providing electricity for the voltage regulator module Pressure, andControl module, is connected with the voltage regulator module and first on-off circuit respectively, the control module be used for First on-off circuit sends the first pwm signal, to control the tone of the buzzer, and according to target volume to the electricity Pressure adjustment module sends the second pwm signal, so that voltage regulator module adjustment input is realized to the voltage of the buzzer Volume adjustment.
- 2. the sounding regulating device of buzzer according to claim 1, it is characterised in that the first on-off circuit bag Include：Second resistance, the first end of the second resistance are connected with the control module；3rd resistor, the first end of the 3rd resistor are connected with the second end of the second resistance, and the of the 3rd resistor Two ends are grounded；4th switch, the first end of the 4th switch are connected with the second end of the buzzer, and the second of the 4th switch End ground connection, the control terminal of the 4th switch are connected with the first end of the 3rd resistor.
- 3. the sounding regulating device of buzzer according to claim 1, it is characterised in that the voltage regulator module bag Include：Second on-off circuit, the control terminal of second on-off circuit are connected with the control module, second on-off circuit Input terminal is connected with first power supply；First capacitance, the cathode of first capacitance are defeated with the first end of the buzzer and second on-off circuit respectively Outlet is connected, the anode ground connection of first capacitance, for powering for the buzzer；4th resistance, the first end of the 4th resistance are connected with the cathode of first capacitance, and the second of the 4th resistance End ground connection；The control module is used to send second pwm signal to second on-off circuit, adjusts the first power supply to described The time of first capacitance charging, so as to adjust the first capacitance output voltage, realizes that adjustment inputs the voltage of the buzzer.
- 4. the sounding regulating device of buzzer according to claim 3, it is characterised in that the second on-off circuit bag Include：5th resistance, the first end of the 5th resistance are connected with the control module；6th resistance, the first end of the 6th resistance are connected with the second end of the 5th resistance, and the of the 6th resistance Two ends are grounded；3rd switch, the control terminal of the 3rd switch are connected with the first end of the 6th resistance, the described 3rd switch the Two ends are grounded；7th resistance, the first end of the 7th resistance are connected with the first end of the described 3rd switch；8th resistance, the first end of the 8th resistance are connected with the second end of the 7th resistance；9th resistance, the first end of the 9th resistance are connected with the first power supply, the second end of the 9th resistance and described the The second end of eight resistance is connected；5th switch, the 5th switch first end are connected with the second end of the 9th resistance, and the second of the 5th switch End is connected with the cathode of first capacitance, and the control terminal of the 5th switch is connected with the second end of the 7th resistance.
- 5. the sounding regulating device of buzzer according to claim 3, it is characterised in that the voltage regulator module also wraps Include：3rd on-off circuit, the control terminal of the 3rd on-off circuit are connected with the control module；Second capacitance, the second capacitance anode is connected with the output terminal of the 3rd on-off circuit, and is grounded；Tenth resistance, the first end of the tenth resistance are connected with second capacitance cathode, the second end of the tenth resistance It is connected with the first end of the buzzer；11st resistance, the first end of the 11st resistance are connected with the first end of the buzzer；4th on-off circuit, the input terminal of the 4th on-off circuit are connected with the cathode of first capacitance, the four-way The output terminal of deenergizing is connected with the other end of the 11st resistance, the control terminal and the described 3rd of the 4th on-off circuit The input terminal of on-off circuit is connected；The control module controls the 3rd on-off circuit to turn on by the 3rd pwm signal, is led in the 3rd on-off circuit When logical, the 4th on-off circuit conducting, first capacitance is second capacitance to the buzzer input voltage Charging, when the 3rd on-off circuit is closed, second capacitance is powered to the buzzer, produces last or end syllable.
- 6. the sounding regulating device of buzzer according to claim 5, it is characterised in that the 3rd on-off circuit bag Include：12nd resistance, the first end of the 12nd resistance are connected with the control module；13rd resistance, the first end of the 13rd resistance are connected with the second end of the 12nd resistance, and the described 13rd The second end ground connection of resistance；Second switch, the control terminal of the second switch are connected with the first end of the 13rd resistance, the second switch First end is connected with the 4th on-off circuit, the second end ground connection of the second switch.
- 7. the sounding regulating device of buzzer according to claim 6, it is characterised in that the 4th on-off circuit bag Include：14th resistance, the first end of the 14th resistance are connected with the cathode of first capacitance,15th resistance, the first end of the 15th resistance are connected with the second switch, and the second of the 15th resistance End is connected with the second end of the 14th resistance；First switch, the control terminal of the first switch are connected with the second end of the 14th resistance, the first switch First end is connected with the first end of the 14th resistance, the second end of the first switch and the second of the 11st resistance End is connected.
- 8. the sounding regulating device of buzzer according to claim 1, it is characterised in that second source is further included, it is described Second source is connected with the control module, for powering for the control module.
- A kind of 9. sounding adjusting method of buzzer, it is characterised in that including：Obtain sounding instruction；Instructed according to the sounding, determine buzzer tone to be sent and volume；According to the tone, the first pwm signal is produced to control the buzzer to send the tone；According to the volume, production The second pwm signal is given birth to control the buzzer to send the volume.
- 10. adjusting method according to claim 9, it is characterised in that the method further includes：Instructed according to described Determine buzzer last or end syllable to be sent；According to the last or end syllable, the 3rd pwm signal is produced to control the buzzer to send the last or end syllable.
- 11. a kind of household electrical appliance, it is characterised in that the household electrical appliance include：Such as the sounding adjusting apparatus of claim 1-8 any one of them buzzers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810040784.9A CN108022579A (en) | 2018-01-16 | 2018-01-16 | Sounding regulating device, adjusting method and the household electrical appliance of a kind of buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810040784.9A CN108022579A (en) | 2018-01-16 | 2018-01-16 | Sounding regulating device, adjusting method and the household electrical appliance of a kind of buzzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108022579A true CN108022579A (en) | 2018-05-11 |
Family
ID=62071541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810040784.9A Pending CN108022579A (en) | 2018-01-16 | 2018-01-16 | Sounding regulating device, adjusting method and the household electrical appliance of a kind of buzzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108022579A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584854A (en) * | 2018-10-29 | 2019-04-05 | 深圳和而泰智能控制股份有限公司 | A kind of method and device adjusting buzzer sound size |
| CN112365869A (en) * | 2020-10-09 | 2021-02-12 | 华帝股份有限公司 | Single IO controlled buzzer circuit and control method thereof |
| CN112614475A (en) * | 2020-12-30 | 2021-04-06 | 深圳飞安瑞科技股份有限公司 | Piezoelectric buzzer volume enhancement circuit, method, electronic device and storage medium |
| CN114141220A (en) * | 2021-11-29 | 2022-03-04 | 深圳市太美亚电子科技有限公司 | Drive circuit of music passive buzzer |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990006121A (en) * | 1997-06-30 | 1999-01-25 | 김영환 | Other excitation DC motor controller and its control method |
| KR20040068639A (en) * | 2003-01-27 | 2004-08-02 | 화인테크기전 주식회사 | Discharge device of storage battery |
| CN2927245Y (en) * | 2006-04-30 | 2007-07-25 | 深圳市和而泰电子科技有限公司 | Buzzer circuit |
| CN200976098Y (en) * | 2006-09-18 | 2007-11-14 | 深圳市超维实业有限公司 | Digital recording alarm clock |
| CN102262876A (en) * | 2011-04-13 | 2011-11-30 | 浙江吉利汽车研究院有限公司 | System and method for automatically adjusting sound volume of car horn |
| CN203102849U (en) * | 2013-01-21 | 2013-07-31 | 美的集团股份有限公司 | Buzzer control device and electrical heating system with same |
| CN104157282A (en) * | 2013-05-14 | 2014-11-19 | 宁波市鄞州亿丰电子器材厂 | Novel buzzer circuit |
| CN104581531A (en) * | 2014-12-22 | 2015-04-29 | 广东美的制冷设备有限公司 | Air conditioner and volume control device for buzzer in air conditioner |
| CN105045185A (en) * | 2015-08-14 | 2015-11-11 | 佛山市顺德区美的电热电器制造有限公司 | Buzzer volume control apparatus and method for controlling buzzer volume by using the same, and household appliance |
| CN206163119U (en) * | 2016-10-20 | 2017-05-10 | 广州视源电子科技股份有限公司 | Buzzer control circuit, buzzer and range hood |
| CN207765158U (en) * | 2018-01-16 | 2018-08-24 | 深圳和而泰小家电智能科技有限公司 | A kind of the sounding regulating device and household electrical appliance of buzzer |
-
2018
- 2018-01-16 CN CN201810040784.9A patent/CN108022579A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990006121A (en) * | 1997-06-30 | 1999-01-25 | 김영환 | Other excitation DC motor controller and its control method |
| KR20040068639A (en) * | 2003-01-27 | 2004-08-02 | 화인테크기전 주식회사 | Discharge device of storage battery |
| CN2927245Y (en) * | 2006-04-30 | 2007-07-25 | 深圳市和而泰电子科技有限公司 | Buzzer circuit |
| CN200976098Y (en) * | 2006-09-18 | 2007-11-14 | 深圳市超维实业有限公司 | Digital recording alarm clock |
| CN102262876A (en) * | 2011-04-13 | 2011-11-30 | 浙江吉利汽车研究院有限公司 | System and method for automatically adjusting sound volume of car horn |
| CN203102849U (en) * | 2013-01-21 | 2013-07-31 | 美的集团股份有限公司 | Buzzer control device and electrical heating system with same |
| CN104157282A (en) * | 2013-05-14 | 2014-11-19 | 宁波市鄞州亿丰电子器材厂 | Novel buzzer circuit |
| CN104581531A (en) * | 2014-12-22 | 2015-04-29 | 广东美的制冷设备有限公司 | Air conditioner and volume control device for buzzer in air conditioner |
| CN105045185A (en) * | 2015-08-14 | 2015-11-11 | 佛山市顺德区美的电热电器制造有限公司 | Buzzer volume control apparatus and method for controlling buzzer volume by using the same, and household appliance |
| CN206163119U (en) * | 2016-10-20 | 2017-05-10 | 广州视源电子科技股份有限公司 | Buzzer control circuit, buzzer and range hood |
| CN207765158U (en) * | 2018-01-16 | 2018-08-24 | 深圳和而泰小家电智能科技有限公司 | A kind of the sounding regulating device and household electrical appliance of buzzer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584854A (en) * | 2018-10-29 | 2019-04-05 | 深圳和而泰智能控制股份有限公司 | A kind of method and device adjusting buzzer sound size |
| CN109584854B (en) * | 2018-10-29 | 2023-09-26 | 深圳和而泰智能控制股份有限公司 | Method and device for adjusting sound of buzzer |
| CN112365869A (en) * | 2020-10-09 | 2021-02-12 | 华帝股份有限公司 | Single IO controlled buzzer circuit and control method thereof |
| CN112614475A (en) * | 2020-12-30 | 2021-04-06 | 深圳飞安瑞科技股份有限公司 | Piezoelectric buzzer volume enhancement circuit, method, electronic device and storage medium |
| CN114141220A (en) * | 2021-11-29 | 2022-03-04 | 深圳市太美亚电子科技有限公司 | Drive circuit of music passive buzzer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108022579A (en) | Sounding regulating device, adjusting method and the household electrical appliance of a kind of buzzer | |
| CN207765158U (en) | A kind of the sounding regulating device and household electrical appliance of buzzer | |
| CN103889106B (en) | LED drive devices and ligthing paraphernalia | |
| EP1744441A3 (en) | Method and apparatus to limit output power in a switching power supply | |
| CN105045185A (en) | Buzzer volume control apparatus and method for controlling buzzer volume by using the same, and household appliance | |
| CN1825429A (en) | Adaptive intelligent electronic horn | |
| ATE302500T1 (en) | FREE-SWING FLYFLY CONVERTER WITH CURRENT AND VOLTAGE LIMITATION | |
| CN108183048A (en) | Relay drive circuit and air conditioner | |
| WO2003085813A3 (en) | Line frequency switching regulator | |
| TW200833171A (en) | Systems and methods of driving an electroluminescent lamp | |
| ATE313872T1 (en) | CONTROL METHOD AND DEVICE FOR A FLYBACK CONVERTER | |
| CN107803282A (en) | Voltage bringing device and electric discharge device | |
| CN208094171U (en) | Controllable impedance and household electrical appliance | |
| CN202996285U (en) | Sweet sound buzzer circuit | |
| CN216564965U (en) | Constant-current constant-voltage switching circuit and beauty instrument | |
| TW200420315A (en) | Human-body potential controlling electrotherapeutic device | |
| CN215938791U (en) | Circuit for simultaneously outputting micro current and radio frequency by single electrode on beauty instrument | |
| CN100449917C (en) | Device for controlling power by phase control, and method for reducing harmonic waves | |
| CN204856134U (en) | Buzzer volume controlling means and domestic appliance | |
| CN207690234U (en) | Buzzer control circuit and buzzer | |
| CN208257781U (en) | Ignition circuit and gas water heater | |
| WO2009097723A1 (en) | Energy output circuit and its control method | |
| CN219440426U (en) | Neuromuscular rehabilitation system | |
| CN218497778U (en) | Volume adjusting device and domestic appliance of buzzer | |
| CN220553292U (en) | Buzzer circuit, electrical equipment and cooking equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |