CN102014330A - Music buzzing control circuit for range hood - Google Patents
Music buzzing control circuit for range hood Download PDFInfo
- Publication number
- CN102014330A CN102014330A CN2009101827275A CN200910182727A CN102014330A CN 102014330 A CN102014330 A CN 102014330A CN 2009101827275 A CN2009101827275 A CN 2009101827275A CN 200910182727 A CN200910182727 A CN 200910182727A CN 102014330 A CN102014330 A CN 102014330A
- Authority
- CN
- China
- Prior art keywords
- buzzer
- transistor
- control circuit
- output end
- range hood
- 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
Images
Abstract
The invention discloses a music control circuit for a range hood, comprising a singlechip, a buzzer drive circuit and a buzzer control circuit with a piezoelectric buzzer, wherein the control output end of the singlechip transmits on/off signals to the buzzer control circuit, and the buzzer control circuit switch on or off power supply voltage to the piezoelectric buzzer correspondingly; the pulse output end of the singlechip transmits a pulse signal to the buzzer drive circuit, and the the buzzer drive circuit correspondingly drives the piezoelectric buzzer to work; every key required to be matched with the music sound prompt operation in the range hood transmits a signal to the singlechip; and the pulse output end of the singlechip transmits different pulse signals according to different modes of key setting. According to the requirement, the work time of the piezoelectric buzzer each time can be controlled by setting the output condition and the output time of a signal between the control output end and the pulse output end of the singlechip, thereby realizing that the range hood sends out corresponding music prompt tone by matching with key operations according to the setting and the circuit is simple and feasible.
Description
Technical field
The present invention relates to the buzzing cue circuit field of range hood, especially a kind of used for range hood music buzzing control circuit.
Background technology
The button operation of range hood often cooperates the buzzing prompt tone, to strengthen the button sense of touch.But at present a lot of buzzing prompt tones are dull, can only send simple " ticking-" sound, do not have aesthetic feeling.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of used for range hood music buzzing control circuit, can cooperate button operation to send corresponding music tip sound by setting.
The present invention for the technical scheme that solves its technical problem and adopt is:
A kind of used for range hood music buzzing control circuit, this control circuit comprises: single-chip microcomputer, buzzer drive circuit and include the buzzer control circuit of piezoelectric buzzer:
The control output end transmission switching signal of single-chip microcomputer is in the buzzer control circuit, and the corresponding switching supply power voltage of buzzer control circuit is in piezoelectric buzzer;
The pulse output end transmission pulse signal of single-chip microcomputer is in buzzer drive circuit, and the corresponding drive pressure electric buzzer of buzzer drive circuit is worked;
The need of range hood cooperate the button of music prompting operation to be messaging in single-chip microcomputer, and the pulse output end of single-chip microcomputer transmits different pulse signals at dissimilar buttons by setting.
As a further improvement on the present invention, described buzzer control circuit also includes first and second transistor, first and second resistance and load resistance: described piezoelectric buzzer series load resistance; The control output end of single-chip microcomputer connects the base stage of first transistor by first resistance, the grounded emitter of first transistor, the collector electrode of first transistor connects the base stage of second transistor by second resistance, the emitter of second transistor connects operating voltage, and the collector electrode of second transistor also connects load resistance one end.
As a further improvement on the present invention, described buzzer control circuit also includes the 3rd resistance and the decoupling capacitor of series connection, the collector electrode of described second transistor and connect the 3rd resistance of described series connection and decoupling capacitor after ground connection.
As a further improvement on the present invention, described buzzer drive circuit comprises the 5th, six resistance and the 3rd transistor, the pulse output end of described single-chip microcomputer connects the base stage of the 3rd transistor by the 6th resistance, the grounded emitter of the 3rd transistor, the collector electrode of the 3rd transistor is by the 5th resistance and connect the load resistance other end.
As a further improvement on the present invention, the switching signal of the control output end of described single-chip microcomputer transmission corresponds to high and low level.
As a further improvement on the present invention, described first transistor is a NPN type triode; Described second transistor is the positive-negative-positive triode; Described the 3rd transistor is a NPN type triode.
As a further improvement on the present invention, the need of described range hood cooperate the button of music prompting operation to be respectively: start key, closing key and some function manipulation keys, the driving frequency group of the different pulse signal that pulse output end transmitted of corresponding described single-chip microcomputer is respectively: start advisory frequency group, shutdown advisory frequency group and feature operation advisory frequency group, corresponding described piezoelectric buzzer are sent different prompt tones when working and are: start-up prompting sound, shutdown prompt tone and feature operation prompt tone.
The invention has the beneficial effects as follows: the control output end transmission by single-chip microcomputer is logical, break signal is controlled the power supply of break-make piezoelectric buzzer, simultaneously after the piezoelectric buzzer energising, by the corresponding pulse signal drive pressure electric buzzer work of the pulse output end transmission of single-chip microcomputer, piezoelectric buzzer sends corresponding music tip sound, as required, the output condition and the output time of the control output end of setting single-chip microcomputer and the signal of pulse output end, it is each operating time of may command piezoelectric buzzer, thereby realize that range hood is by setting the music tip sound that cooperates button operation and send correspondence, circuit simple possible.
Description of drawings
Fig. 1 is a circuit diagram of the present invention;
Fig. 2 is the single output signal schematic diagram of control output end of the present invention;
Fig. 3 is the single output pulse signal schematic diagram of pulse output end of the present invention.
Embodiment
Embodiment: a kind of used for range hood music buzzing control circuit, this control circuit comprises: singlechip CPU, buzzer drive circuit and include the buzzer control circuit of piezoelectric buzzer BUZZER:
The control output end A transmission switching signal of singlechip CPU is in the buzzer control circuit, and the corresponding switching supply power voltage of buzzer control circuit is in piezoelectric buzzer BUZZER;
The pulse output end B transmission pulse signal of singlechip CPU is in buzzer drive circuit, and the corresponding drive pressure electric buzzer of buzzer drive circuit BUZZER works;
The need of range hood cooperate the button of music prompting operation to be messaging in singlechip CPU, and the pulse output end B of singlechip CPU transmits different pulse signals at dissimilar buttons by setting.
Described buzzer control circuit also includes first and second transistor Q1, Q2, first and second resistance R 1, R2 and load resistance R4: described piezoelectric buzzer BUZZER series load resistance R 4; The control output end A of singlechip CPU connects the base stage of the first transistor Q1 by first resistance R 1, the grounded emitter of the first transistor Q1, the collector electrode of the first transistor Q1 connects the base stage of the second transistor Q2 by second resistance R 2, the emitter of the second transistor Q2 connects operating voltage, and the collector electrode of the second transistor Q2 also connects load resistance R4 one end.
Described buzzer control circuit also includes the 3rd resistance R 3 and the decoupling capacitor E1 of series connection, the collector electrode of the described second transistor Q2 and connect the 3rd resistance R 3 of described series connection and decoupling capacitor E1 after ground connection.
Described buzzer drive circuit comprises the 5th, six resistance R 5, R6 and the 3rd transistor Q3, the pulse output end B of described singlechip CPU connects the base stage of the 3rd transistor Q3 by the 6th resistance R 6, the grounded emitter of the 3rd transistor Q3, the collector electrode of the 3rd transistor Q3 is by the 5th resistance R 5 and connect the load resistance R4 other end.
The switching signal of the control output end A transmission of described singlechip CPU corresponds to high and low level U
H, U
L
The described first transistor Q1 is a NPN type triode; The described second transistor Q2 is the positive-negative-positive triode; Described the 3rd transistor Q3 is a NPN type triode.
The need of described range hood cooperate the button of music prompting operation to be respectively: start key, closing key and some function manipulation keys, the driving frequency group of the different pulse signal that the pulse output end B of corresponding described singlechip CPU is transmitted is respectively: start advisory frequency group, shutdown advisory frequency group and feature operation advisory frequency group, corresponding described piezoelectric buzzer BUZZER sends different prompt tones when working and is: start-up prompting sound, shutdown prompt tone and feature operation prompt tone.
During concrete enforcement: singlechip CPU receives the transmitted breath back of button (this reception information time is made as t) that needs to cooperate the music prompting operation, shown in Fig. 2,3, by 1 second high level of control output end A output, pulse output end B begins to transmit corresponding pulse signal simultaneously, corresponding prompt tone is sent in piezoelectric buzzer work, control output end A recovers low level after 1 second, and the corresponding pulse signal of pulse output end B time-delay transmission recovered low level after 0.5 second, and piezoelectric buzzer quits work.
Start advisory frequency group in this example is: output frequency is the pulse signal of 1.82KHz after 0.5 second, and output frequency is the pulse signal of 2.22KHz;
Shutdown advisory frequency group is: output frequency is the pulse signal of 2.22KHz after 0.5 second, and output frequency is the pulse signal of 1.82KHz;
Feature operation advisory frequency group is: output frequency is the pulse signal of 2KHz all the time.
Claims (7)
1. used for range hood music buzzing control circuit, it is characterized in that: this control circuit comprises: single-chip microcomputer (CPU), buzzer drive circuit and include the buzzer control circuit of piezoelectric buzzer (BUZZER):
Control output end (A) the transmission switching signal of single-chip microcomputer (CPU) is in the buzzer control circuit, and the corresponding switching supply power voltage of buzzer control circuit is in piezoelectric buzzer (BUZZER);
Pulse output end (B) the transmission pulse signal of single-chip microcomputer (CPU) is in buzzer drive circuit, and the corresponding drive pressure electric buzzer of buzzer drive circuit (BUZZER) is worked;
The need of range hood cooperate the button of music prompting operation to be messaging in single-chip microcomputer (CPU), and the pulse output end (B) of single-chip microcomputer (CPU) transmits different pulse signals at dissimilar buttons by setting.
2. used for range hood music buzzing control circuit according to claim 1 is characterized in that: described buzzer control circuit also includes first and second transistor (Q1, Q2), first and second resistance (R1, R2) and load resistance (R4): described piezoelectric buzzer (BUZZER) series load resistance (R4); The control output end (A) of single-chip microcomputer (CPU) connects the base stage of first transistor (Q1) by first resistance (R1), the grounded emitter of first transistor (Q1), the collector electrode of first transistor (Q1) connects the base stage of second transistor (Q2) by second resistance (R2), the emitter of second transistor (Q2) connects operating voltage, and the collector electrode of second transistor (Q2) also connects load resistance (R4) end.
3. used for range hood music buzzing control circuit according to claim 2, it is characterized in that: described buzzer control circuit also includes the 3rd resistance (R3) and the decoupling capacitor (E1) of series connection, and the collector electrode of described second transistor (Q2) also connects the 3rd resistance (R3) of described series connection and decoupling capacitor (E1) back ground connection.
4. used for range hood music buzzing control circuit according to claim 1 and 2, it is characterized in that: described buzzer drive circuit comprises the 5th, six resistance (R5, R6) and the 3rd transistor (Q3), the pulse output end (B) of described single-chip microcomputer (CPU) connects the base stage of the 3rd transistor (Q3) by the 6th resistance (R6), the grounded emitter of the 3rd transistor (Q3), the collector electrode of the 3rd transistor (Q3) is by the 5th resistance (R5) and connect load resistance (R4) other end.
5. used for range hood music buzzing control circuit according to claim 4 is characterized in that: the switching signal of control output end (A) transmission of described single-chip microcomputer (CPU) corresponds to high and low level (U
H, U
L).
6. used for range hood music buzzing control circuit according to claim 4 is characterized in that: described first transistor (Q1) is a NPN type triode; Described second transistor (Q2) is the positive-negative-positive triode; Described the 3rd transistor (Q3) is a NPN type triode.
7. used for range hood music buzzing control circuit according to claim 1, it is characterized in that: the need of described range hood cooperate the button of music prompting operation to be respectively: the start key, closing key and some function manipulation keys, the driving frequency group of the different pulse signal that the pulse output end (B) of corresponding described single-chip microcomputer (CPU) is transmitted is respectively: start advisory frequency group, shutdown advisory frequency group and feature operation advisory frequency group, corresponding described piezoelectric buzzer (BUZZER) are sent different prompt tones when working and are: start-up prompting sound, shutdown prompt tone and feature operation prompt tone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101827275A CN102014330A (en) | 2009-09-04 | 2009-09-04 | Music buzzing control circuit for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101827275A CN102014330A (en) | 2009-09-04 | 2009-09-04 | Music buzzing control circuit for range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102014330A true CN102014330A (en) | 2011-04-13 |
Family
ID=43844310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101827275A Pending CN102014330A (en) | 2009-09-04 | 2009-09-04 | Music buzzing control circuit for range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102014330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1715508A (en) * | 2004-06-28 | 2006-01-04 | 乐金电子(天津)电器有限公司 | Washing machine capable of producing various musics |
| CN2927245Y (en) * | 2006-04-30 | 2007-07-25 | 深圳市和而泰电子科技有限公司 | Buzzer circuit |
| CN200943900Y (en) * | 2006-08-07 | 2007-09-05 | 王再丰 | State indication device of oil smoke absorbing machine |
| CN101308212A (en) * | 2007-05-18 | 2008-11-19 | 现代奥途纳特株式会社 | Back warning system and method for vehicle |
| CN201467423U (en) * | 2009-09-04 | 2010-05-12 | 樱花卫厨（中国）股份有限公司 | Music buzzing control circuit used for range hood |
-
2009
- 2009-09-04 CN CN2009101827275A patent/CN102014330A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1715508A (en) * | 2004-06-28 | 2006-01-04 | 乐金电子(天津)电器有限公司 | Washing machine capable of producing various musics |
| CN2927245Y (en) * | 2006-04-30 | 2007-07-25 | 深圳市和而泰电子科技有限公司 | Buzzer circuit |
| CN200943900Y (en) * | 2006-08-07 | 2007-09-05 | 王再丰 | State indication device of oil smoke absorbing machine |
| CN101308212A (en) * | 2007-05-18 | 2008-11-19 | 现代奥途纳特株式会社 | Back warning system and method for vehicle |
| CN201467423U (en) * | 2009-09-04 | 2010-05-12 | 樱花卫厨（中国）股份有限公司 | Music buzzing control circuit used for range hood |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101923770B (en) | Remote controller and electric quantity prompt system | |
| CN201467423U (en) | Music buzzing control circuit used for range hood | |
| CN113300473B (en) | Intelligent controller, processing method thereof and control system | |
| CN102014330A (en) | Music buzzing control circuit for range hood | |
| CN102211554A (en) | Touch key control panel | |
| CN111934666A (en) | Key circuit with system awakening function and specific function | |
| CN213754721U (en) | MCU silence circuit that resets | |
| CN202551002U (en) | Key feedback prompt circuit | |
| CN2933966Y (en) | Vehicle steering buzzer circuit | |
| CN209882072U (en) | Intelligent controller for whooping music fountain | |
| CN208128280U (en) | A kind of KIU keyboard interface unit for radio station traffic communication | |
| CN111162768B (en) | Control device and method | |
| CN202383814U (en) | Remote controller with voice prompt function | |
| CN210324106U (en) | Keyboard circuit and keyboard | |
| CN202150851U (en) | Button scanning system | |
| CN201425734Y (en) | Input device | |
| CN201590046U (en) | Wireless remote control starting-up mouse of computer | |
| CN2906781Y (en) | Remote controller position-reporting device | |
| CN219420735U (en) | IGBT driver and frequency converter | |
| CN218631371U (en) | Control circuit of buzzer | |
| CN216252683U (en) | Electronic switch | |
| CN214380863U (en) | Multifunctional display key circuit | |
| CN215067796U (en) | Communication device and electrical equipment | |
| CN219834362U (en) | Conference microphone and system powered by phantom power supply | |
| CN211063757U (en) | Conference microphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110413 |