CN103077566A - Voice-operated electronic doorbell circuit - Google Patents
Voice-operated electronic doorbell circuit Download PDFInfo
- Publication number
- CN103077566A CN103077566A CN2012105715355A CN201210571535A CN103077566A CN 103077566 A CN103077566 A CN 103077566A CN 2012105715355 A CN2012105715355 A CN 2012105715355A CN 201210571535 A CN201210571535 A CN 201210571535A CN 103077566 A CN103077566 A CN 103077566A
- Authority
- CN
- China
- Prior art keywords
- triode
- power supply
- loudspeaker
- emitter
- capacitor
- 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 voice-operated electronic doorbell circuit. TR in the circuit is an adjustable resistor, is connected in parallel with a 220u capacitor C2 and forms a control circuit with a triode Q2 together; a triode Q3, a triode Q1, a resistor R2 and a 0.33u capacitor C1 form an oscillator; a collector of the triode Q3 is connected with a speaker; the other end of the speaker is connected with an emitter of Q1; 3V voltage is provided by a power supply; a positive electrode end of the power supply is connected with a switch S; and C3 is a 33u filtering capacitor and is connected in parallel with the power supply for use. Vibration input is realized by using the speaker; and doorbell ring output is mainly used for the electronic doorbell circuit. When a guest comes, the guest needs only to knock on a door once, and the doorbell sounds. If the sound of the doorbell is not required, the effect can be achieved by only turning off the switch.
Description
Technical field
The present invention relates to a kind of voice-controlled electronic doorbell circuit, belong to the domestic electronic appliances field.
Background technology
Now a lot of families have all filled doorbell, and doorbell generally adopts the button form, and button is connected in the back door sound.The present invention does not need to fill outdoors button, only needs to detain an Xiamen or cry, and then just can send doorbell sound in the door.If door bell rings is not wished in inside, can close the doorbell switch of the inside.
Summary of the invention
The purpose of this invention is to provide a kind of voice-controlled electronic doorbell circuit design.
Technical scheme of the present invention is: TR is adjustable resistance, consists of control circuit with 2 parallel connections of 220u capacitor C and triode Q2; Triode Q3, triode Q1, resistance R 2 and 0.33u capacitor C 1 consist of oscillator; The collector of triode Q3 connects horn-type loudspeaker Speaker, and the loudspeaker Speaker other end connects the emitter of Q1; Power supply provides the voltage of 3V, and positive terminal connecting valve S, C3 are the filter capacitor of 33u, use in parallel with power supply;
After switch S was closed plugged, power supply charged to C2 through emitter junction and the loudspeaker of C2, Q2, and larger momentary charge electric current makes the Q2 saturation conduction, clamps down on the collector potential of Q3; After the C2 charging finished, power supply provided base current to keep the critical state of saturation of Q2 through TR to Q2, and oscillator is not worked;
When extraneous acoustic vibration diffuser, the loudspeaker two ends produce induced voltage, and this voltage is added in the emitter of Q2, make Q2 withdraw from critical saturation region and enter the amplification region, the collection of Q2---and pressure drop increases between emitter-base bandgap grading, thereby makes the oscillator vibration, and BL sends the audio frequency cry; The releasing cry can disconnect S and close.
QI can select 3DG6, and Q3 can select 3AX31, and Q2 can select 3DG6, and loudspeaker can be selected 8 ohm of loudspeakers, and is installed in the inboard middle and upper part of door-plate, and the guest kowtows an Xiamen and can pronounce to notify.
Beneficial effect of the present invention: utilize loudspeaker to do the vibration input, the output of doorbell sound is mainly used in the electronic door bell circuit.When the guest only need kowtow gate, doorbell just can sounding.If do not need the doorbell sound, only need switch is disconnected and can be effective.
Description of drawings
Fig. 1 is voice-controlled electronic doorbell circuit figure.
Embodiment
As shown in drawings, TR is the 47K adjustable resistance, consists of control circuit with 2 parallel connections of 220u capacitor C and NPN type 3DG6 triode Q2.Q3(model positive-negative-positive 3AX31) and Q1(model NPN type 3DG6) and 51K resistance R 2 and 0.33u capacitor C 1 consisted of oscillator.The collector of 3AX31 connects horn-type loudspeaker Speaker, and the loudspeaker Speaker other end connects the emitter of Q1.Power supply provides the voltage of 3V, positive terminal connecting valve S.C3 is the filter capacitor of 33u, use in parallel with power supply.
After switch S was closed plugged, power supply charged to C2 through emitter junction and the loudspeaker of C2, Q2, and larger momentary charge electric current makes the Q2 saturation conduction, clamps down on the collector potential of Q3; After the C2 charging finished, power supply provided base current to keep the critical state of saturation of Q2 through TR to Q2, and oscillator is not worked;
When extraneous acoustic vibration diffuser, the loudspeaker two ends produce induced voltage, and this voltage is added in the emitter of Q2, make Q2 withdraw from critical saturation region and enter the amplification region, the collection of Q2---and pressure drop increases between emitter-base bandgap grading, thereby makes the oscillator vibration, and BL sends the audio frequency cry; The releasing cry can disconnect S and close.
Claims (2)
1. voice-controlled electronic doorbell circuit, it is characterized in that: TR is adjustable resistance in the described circuit, in parallel and triode Q2 consists of control circuit with 220u capacitor C 2; Triode Q3, triode Q1, resistance R 2 and 0.33u capacitor C 1 consist of oscillator; The collector of triode Q3 connects loudspeaker Speaker, and the loudspeaker Speaker other end connects the emitter of Q1; Power supply provides the voltage of 3V, and positive terminal connecting valve S, C3 are the filter capacitor of 33u, use in parallel with power supply;
After switch S was closed plugged, power supply charged to C2 through emitter junction and the loudspeaker of C2, Q2, and larger momentary charge electric current makes the Q2 saturation conduction, clamps down on the collector potential of Q3; After the C2 charging finished, power supply provided base current to keep the critical state of saturation of Q2 through TR to Q2, and oscillator is not worked;
When extraneous acoustic vibration diffuser, the loudspeaker two ends produce induced voltage, and this voltage is added in the emitter of Q2, make Q2 withdraw from critical saturation region and enter the amplification region, the collection of Q2---and pressure drop increases between emitter-base bandgap grading, thereby makes the oscillator vibration, and BL sends the audio frequency cry; The releasing cry can disconnect S and close.
2. a kind of voice-controlled electronic doorbell circuit according to claim 1, it is characterized in that: QI selects 3DG6, and Q3 selects 3AX31, and Q2 selects 3DG6, and loudspeaker is selected 8 ohm of loudspeakers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105715355A CN103077566A (en) | 2012-12-26 | 2012-12-26 | Voice-operated electronic doorbell circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105715355A CN103077566A (en) | 2012-12-26 | 2012-12-26 | Voice-operated electronic doorbell circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103077566A true CN103077566A (en) | 2013-05-01 |
Family
ID=48154084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105715355A Pending CN103077566A (en) | 2012-12-26 | 2012-12-26 | Voice-operated electronic doorbell circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103077566A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500484A (en) * | 2013-10-25 | 2014-01-08 | 黄宇嵩 | Doorbell ringing in response to door knocking |
| CN104881937A (en) * | 2015-05-29 | 2015-09-02 | 苏州华徕光电仪器有限公司 | Sound control doorbell circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210193U (en) * | 1987-07-20 | 1988-11-02 | 李传顺 | Sound-control automatic time-delay switch |
| CN2064529U (en) * | 1989-11-24 | 1990-10-24 | 顾晓桐 | Quadratically sound-controlled electronic music doorbell |
| CN2079477U (en) * | 1989-12-22 | 1991-06-26 | 杨钦祥 | Collapsible basin |
| CN2138825Y (en) * | 1992-11-30 | 1993-07-21 | 上海天下电子电器有限公司 | Knocking type door bell |
| CN2177265Y (en) * | 1993-12-03 | 1994-09-14 | 常熟市华中电器厂 | Sound control anti-theft alarm and door bell multipurpose device |
| KR20060000326A (en) * | 2004-06-28 | 2006-01-06 | 엘지전자 주식회사 | Method for controlling received mode of mobile communication terminal remotely |
-
2012
- 2012-12-26 CN CN2012105715355A patent/CN103077566A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210193U (en) * | 1987-07-20 | 1988-11-02 | 李传顺 | Sound-control automatic time-delay switch |
| CN2064529U (en) * | 1989-11-24 | 1990-10-24 | 顾晓桐 | Quadratically sound-controlled electronic music doorbell |
| CN2079477U (en) * | 1989-12-22 | 1991-06-26 | 杨钦祥 | Collapsible basin |
| CN2138825Y (en) * | 1992-11-30 | 1993-07-21 | 上海天下电子电器有限公司 | Knocking type door bell |
| CN2177265Y (en) * | 1993-12-03 | 1994-09-14 | 常熟市华中电器厂 | Sound control anti-theft alarm and door bell multipurpose device |
| KR20060000326A (en) * | 2004-06-28 | 2006-01-06 | 엘지전자 주식회사 | Method for controlling received mode of mobile communication terminal remotely |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500484A (en) * | 2013-10-25 | 2014-01-08 | 黄宇嵩 | Doorbell ringing in response to door knocking |
| CN104881937A (en) * | 2015-05-29 | 2015-09-02 | 苏州华徕光电仪器有限公司 | Sound control doorbell circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103077566A (en) | Voice-operated electronic doorbell circuit | |
| CN208538468U (en) | A kind of control buzzer issues the circuit of chord | |
| CN104868528A (en) | Intelligent watch charging base integrating time clock function | |
| CN205454077U (en) | NOISE -CANCELLING HEADPHONES and audio input switching circuit thereof | |
| CN204350240U (en) | A kind of multi-functional audio | |
| CN202218393U (en) | Equal-impedance dual-voice coil in-parallel loudspeaker | |
| CN104852429A (en) | Smart watch charging base integrated with music playing function | |
| CN203458619U (en) | Intelligent voice control circuit of disinfection cabinet | |
| CN204634043U (en) | Hearing aids simulation test battery | |
| CN206117993U (en) | Audio frequency ground keeps apart differential circuit and audio amplifier | |
| CN202815492U (en) | Remotely-controlled sound-control circuit | |
| CN205039797U (en) | Compatible USB charges and audio transmission's interface circuit | |
| CN204859558U (en) | Hearing aid | |
| CN204859493U (en) | Adopt head circuit of discrete component equipment | |
| CN204229839U (en) | A kind of WiFi music box with voice play function | |
| CN206061109U (en) | A kind of single-ended audio signal turns differential signal circuit and wireless headset | |
| CN201995116U (en) | Sound card control circuit | |
| CN203968349U (en) | A kind of playback set | |
| CN106131729B (en) | Earphone control circuit and method | |
| CN209089217U (en) | Noise elimination circuit and power amplifier audio system | |
| CN204010180U (en) | Vibration induction formula button-free doorbell | |
| CN105611442B (en) | The bluetooth headset for hanging up mobile phone is answered in a kind of automatic control | |
| CN104601120A (en) | Audio power amplifier with small degree of distortion | |
| CN202587142U (en) | Device capable of prompting handset position regularly | |
| CN105635923A (en) | Electronic hearing aid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130501 |