CN203225104U - A boost application circuit used for a buzzer - Google Patents
A boost application circuit used for a buzzer Download PDFInfo
- Publication number
- CN203225104U CN203225104U CN 201320128304 CN201320128304U CN203225104U CN 203225104 U CN203225104 U CN 203225104U CN 201320128304 CN201320128304 CN 201320128304 CN 201320128304 U CN201320128304 U CN 201320128304U CN 203225104 U CN203225104 U CN 203225104U
- Authority
- CN
- China
- Prior art keywords
- buzzer
- application circuit
- hummer
- voltage
- circuit used
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Amplifiers (AREA)
Abstract
The utility model discloses a boost application circuit used for a buzzer. The boost application circuit used for a buzzer is characterized in that an inductor is connected with the two ends of the buzzer in parallel, and that the on-off state of the inductor is controlled by an electronic switch. The boost application circuit used for a buzzer has beneficial effects that the inductor is applied to an original buzzer driving circuit, and that by using the boost principle of the inductor, the driving voltage of the buzzer is boosted under the circumstance of relative low circuit voltage and the loudness problem of the buzzer under the circumstance of relative low circuit voltage is effectively resolved.
Description
Technical field
The utility model relates to a kind of application circuit that boosts for hummer.
Background technology
The sound that piezo buzzer sends is relevant with two factors, one is the driving frequency of hummer, one is the driving voltage of hummer, and driving frequency determines the effect of shoo, needs to select specified frequency just can reach optimum efficiency, Fig. 2 shows general buzzer drive circuit schematic diagram, driving voltage determines the loudness of sound, and driving voltage is more high usually, and sound is more loud, certainly, driving voltage also needs to be limited in the maximum voltage range that hummer can bear.
In order to make hummer reach best effects,sound, general driving frequency and driving voltage are chosen by ratings and are got final product, but under certain conditions, circuit voltage can be restricted and can't reach needed driving voltage, the driving voltage of the hummer that just needs this time to consider how to raise so that the loudness of sound meet the demands.
The utility model content
The purpose of this utility model is exactly in order to address the above problem, and a kind of application circuit that boosts for hummer is provided.
To achieve these goals, the utility model adopts following technical scheme:
A kind of application circuit that boosts for hummer is characterized in that, inductance in parallel in the two ends of hummer, and the power on/off by electronic switch control inductance.
Described electronic switch is triode.
The beneficial effects of the utility model are: the utility model has utilized the principle of boosting of inductance, inductance is joined in original buzzer drive circuit, raise under than the low circuit voltage condition driving voltage of hummer effectively solves the loudness problems than hummer under the low circuit voltage.
Description of drawings
Fig. 1 a is inductor loop energising moment schematic diagram.
Fig. 1 b is inductor loop outage moment schematic diagram.
Fig. 1 c is that negative high voltage produces circuit theory diagrams.
Fig. 1 d is that practical negative high voltage produces circuit theory diagrams
Fig. 2 is general buzzer drive circuit schematic diagram in the background technology.
Fig. 3 is low-voltage buzzer drive circuit schematic diagram.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 3, a kind of application circuit that boosts for hummer, inductance L 4 in parallel in the two ends of hummer, and the power on/off by electronic switch control inductance, described electronic switch is triode.
Referring to Fig. 1 a-1d, wherein (1a) switches on moment for inductor loop, feeds electric current by power supply to inductance, when deenergization, hinders the characteristic that electric current changes because inductance has, and can bring out existing negative high voltage at one of inductance; (1b) for inductor loop cuts off the power supply moment, the break-make of power supply can be controlled by electronic switch; (1c) produce circuit for negative high voltage; Be that practical negative high voltage produces circuit (1d).
Referring to Fig. 2, wherein the square-wave signal of BUZ-input rated power is high level when BUZ+ is flat, and input low level when hummer need ring can see that circuit voltage is+12V.
Referring to Fig. 3, increased boost inductance on the driving circuit basis of general hummer, so the voltage of this circuit only need+5V get final product, wherein the inductance value of AB is 15mH, the inductance value of BC is 63mH.
The above only is preferred implementation of the present utility model, and protection domain of the present utility model is not limited in above-mentioned embodiment, and every technical scheme that belongs to the utility model principle all belongs to protection domain of the present utility model.For a person skilled in the art, some improvement of under the prerequisite that does not break away from principle of the present utility model, carrying out, these improvement also should be considered as protection domain of the present utility model.
Claims (2)
1. the application circuit that boosts that is used for hummer is characterized in that, in the two ends of hummer inductance in parallel, and the power on/off by electronic switch control inductance.
2. a kind of application circuit that boosts for hummer as claimed in claim 1 is characterized in that described electronic switch is triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128304 CN203225104U (en) | 2013-03-20 | 2013-03-20 | A boost application circuit used for a buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128304 CN203225104U (en) | 2013-03-20 | 2013-03-20 | A boost application circuit used for a buzzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203225104U true CN203225104U (en) | 2013-10-02 |
Family
ID=49252101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320128304 Expired - Lifetime CN203225104U (en) | 2013-03-20 | 2013-03-20 | A boost application circuit used for a buzzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203225104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531140A (en) * | 2016-12-05 | 2017-03-22 | 深圳市泛海三江电子股份有限公司 | Piezoelectric buzzer drive circuit |
-
2013
- 2013-03-20 CN CN 201320128304 patent/CN203225104U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531140A (en) * | 2016-12-05 | 2017-03-22 | 深圳市泛海三江电子股份有限公司 | Piezoelectric buzzer drive circuit |
| CN106531140B (en) * | 2016-12-05 | 2023-05-05 | 深圳市高新投三江电子股份有限公司 | Piezoelectric buzzer driving circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204257515U (en) | Control relay circuit | |
| CN203933591U (en) | A kind of contactor and power circuit | |
| CN203225104U (en) | A boost application circuit used for a buzzer | |
| CN204887411U (en) | Intelligence audio frequency drive circuit | |
| CN204652259U (en) | A kind of switching power circuit | |
| CN203217292U (en) | State machine-based multifunctional electronic appliance control circuit | |
| CN203367662U (en) | Socket controlling on and off according to load current signal | |
| CN204090205U (en) | Based on the low-power consumption LED drive circuit that PWM controls | |
| CN204303686U (en) | Wide region A.C. contactor control device | |
| CN204425174U (en) | Switching Power Supply and accessory power supply thereof | |
| CN204205574U (en) | A kind of over-discharge protection circuit | |
| CN202205119U (en) | Negative voltage generating circuit | |
| CN204013231U (en) | A kind of boosted switch power supply | |
| CN203225658U (en) | Self-conduction boost switch power supply | |
| CN203193928U (en) | Power saving device for street lamp | |
| CN103369764B (en) | A LED driving circuit and a LED lamp | |
| CN204304783U (en) | A kind of for the booster circuit in audio amplifier | |
| CN202840964U (en) | Intelligent switch power energy efficiency control circuit | |
| CN204258326U (en) | A kind of photovoltaic generating system | |
| CN104168694A (en) | LED drive power supply circuit | |
| CN106658880A (en) | Boost infrared ball machine infrared lamp drive circuit | |
| CN204886132U (en) | Prevent voltage pulse circuit | |
| CN204480859U (en) | A kind of multifrequency stabilized voltage power supply transformer | |
| CN203166834U (en) | Digital power amplification circuit with switching power supply | |
| CN203660866U (en) | Pulse top rush elimination circuit of pulse transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A boost application circuit for buzzer Effective date of registration: 20211203 Granted publication date: 20131002 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: HANGZHOU ZHOUJU ELECTRONIC TECHNOLOGICAL Co.,Ltd. Registration number: Y2021980014045 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220322 Granted publication date: 20131002 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: HANGZHOU ZHOUJU ELECTRONIC TECHNOLOGICAL Co.,Ltd. Registration number: Y2021980014045 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A boost application circuit for buzzer Effective date of registration: 20220322 Granted publication date: 20131002 Pledgee: Shanghai Guotai Junan Securities Asset Management Co.,Ltd. Pledgor: HANGZHOU ZHOUJU ELECTRONIC TECHNOLOGICAL Co.,Ltd. Registration number: Y2022990000159 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221220 Granted publication date: 20131002 Pledgee: Shanghai Guotai Junan Securities Asset Management Co.,Ltd. Pledgor: HANGZHOU ZHOUJU ELECTRONIC TECHNOLOGICAL Co.,Ltd. Registration number: Y2022990000159 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |