CN208092893U - A kind of novel touch formula alarm - Google Patents
A kind of novel touch formula alarm Download PDFInfo
- Publication number
- CN208092893U CN208092893U CN201820629193.0U CN201820629193U CN208092893U CN 208092893 U CN208092893 U CN 208092893U CN 201820629193 U CN201820629193 U CN 201820629193U CN 208092893 U CN208092893 U CN 208092893U
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- Prior art keywords
- nand gate
- pin
- triode
- capacitor
- audio
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- Burglar Alarm Systems (AREA)
Abstract
The utility model is related to a kind of novel touch formula alarms, including power supply, electrode slice, monostable circuit, audio frequency oscillator, audio-frequency power amplifier and loud speaker, power supply one end is grounded, and the other end after conducting wire series capacitor and rectifier diode with electrode slice by connecting；Monostable circuit is connected between electrode slice and rectifier diode, which connects audio frequency oscillator；Audio frequency oscillator connects audio-frequency power amplifier, which connects loud speaker；Monostable circuit includes NAND gate A, capacitor C1 and NAND gate B；Audio frequency oscillator circuit includes NAND gate C, capacitor C2 and NAND gate D；Audio-frequency power amplifier includes triode V2, triode V3 and capacitor C4, is connected in parallel with loud speaker after connecting capacitor C4 between triode V2 and triode V3.The utility model circuit function is easily achieved, simple in structure, of low cost, can be widely used in antitheft, thief-proof article, keeps it practical preferably.
Description
Technical field
The utility model is related to warning device field, specifically a kind of novel touch formula alarm.
Background technology
With the antitheft consciousness enhancing of people, door lock, electric bicycle, motorcycle or other metals require to have certain
Anti-theft feature.Currently, main warning device is to remind or warn people in the form of sound, light, air pressure etc. in the market.Generally
Electronic alarm be that output signal is either realized by electromagnetic induction by triggering certain sensor circuits, although effect
It is relatively good, but manufacturing cost is higher, and circuit is more complicated.
Utility model content
It is good that the technical problem to be solved by the utility model is to provide a kind of practicabilities, and circuit structure is simple, manufacturing cost
Low novel touch formula alarm.
To solve the above problems, a kind of novel touch formula alarm described in the utility model, including power supply, electrode slice,
Monostable circuit, audio frequency oscillator, audio-frequency power amplifier and loud speaker, it is characterised in that：Power supply one end ground connection is another
One end after conducting wire series capacitor C3 and rectifier diode V1 with the electrode slice by connecting；The electrode slice and two pole of rectification
The monostable circuit is connected between pipe, which connects the audio frequency oscillator；The audio frequency oscillator connects institute
Audio-frequency power amplifier is stated, which connects loud speaker；The monostable circuit includes NAND gate A, capacitor
C1 and NAND gate B, the pin 2 of NAND gate A connect the pin 4 of the NAND gate B, and the pin 3 of NAND gate A connect it is described
It is connect with the pin 5 of the NAND gate B after capacitor C1；The audio frequency oscillator includes NAND gate C, capacitor C2 and NAND gate
D, the pin 9 of NAND gate C are connected with the pin 5,6 of the NAND gate B；The pin 10 of the NAND gate C connect it is described with it is non-
The pin 13 of door D, NAND gate C are parallel with resistance R2 between the capacitor C2 and the NAND gate D respectively, and after parallel connection
Access the pin 12 of the NAND gate D；The audio-frequency power amplifier includes triode V2, triode V3 and capacitor C4, is somebody's turn to do
One end is connected between the capacitor C3 and rectifier diode V1 after triode V2 and triode V3 connects, another termination
Ground；It is separately connected the triode V2 and triode V3 after the capacitor C2 is in parallel with the pin 11 of NAND gate D, this three
It is connected in parallel with the loud speaker after connecting capacitor C4 between pole pipe V2 and triode V3；The loud speaker connects resistance R1,
Resistance R1 connects the pin 5 of the NAND gate B.
The power supply uses 9V batteries.
The rectifier diode V1 is using cache switching diodes small-sized 1N4148.
The NAND gate A, NAND gate B, NAND gate C and NAND gate D use model CD4011.
The pin 1 of the NAND gate A is connected between the electrode slice and rectifier diode V1.
The triode V2 is using the 9013 type small-power NPN triodes for amplifying positive half cycle signal.
The triode V3 is using the 9012 type small-power NPN triodes for amplifying negative half-cycle signal.
Compared with prior art, the utility model has the following advantages：
The utility model is touched using simple NAND gate chip, diode, small power switch triode by perceiving human body
The noise signal for touching electrode slice generation, using common 9v batteries as power supply, drive the speaker sends out alarm, and circuit function is easy to real
It is existing, it is simple in structure, it is of low cost, antitheft, thief-proof article can be widely used in, keep it practical preferably.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural circuit figure of the utility model.
In figure：101. power supply, 201. electrode slices, 301. monostable circuits, 401. audio frequency oscillators, 501. audio powers are put
Big device, 601. loud speakers.
Specific implementation mode
With reference to the accompanying drawings shown in 1, a kind of novel touch formula alarm, including power supply 101, electrode slice 201, monostable circuit
301, audio frequency oscillator 401, audio-frequency power amplifier 501 and loud speaker 601,101 one end of power supply ground connection, the other end is by leading
It is connect with electrode slice 201 after line series capacitor C3 and rectifier diode V1；It is connected between electrode slice 201 and rectifier diode single
Steady-state circuit 301, the monostable circuit 301 connect audio frequency oscillator 401；Audio frequency oscillator 401 connects audio-frequency power amplifier
501, which connects loud speaker 601；Monostable circuit 301 include NAND gate A, capacitor C1 and with it is non-
Door B, the pin 1 of NAND gate A are connected between electrode slice 201 and rectifier diode V1, and pin 2 connects drawing for NAND gate B
Foot 4, and connect with the pin 5 of NAND gate B after the connection capacitor of pin 3 C1 of NAND gate A；Audio frequency oscillator 401 include with
NOT gate C, capacitor C2 and NAND gate D, the pin 9 of NAND gate C are connected with the pin 5,6 of NAND gate B；The pin of NAND gate C
The pin 13 of 10 connection NAND gate D, NAND gate C are parallel with resistance R2 between capacitor C2 and NAND gate D respectively, and in parallel
The pin 12 of access NAND gate D afterwards；Audio-frequency power amplifier 501 includes triode V2, triode V3 and capacitor C4, three pole
One end is connected between capacitor C3 and rectifier diode V1 after pipe V2 and triode V3 connects, other end ground connection；Capacitor
It is separately connected triode V2 and triode V3 after C2 is in parallel with the pin 11 of NAND gate D, between triode V2 and triode V3
It is connected in parallel with loud speaker 601 after connection capacitor C4；Loud speaker 601 connects resistance R1, and resistance R1 connection NAND gate B's draws
Foot 5.
Wherein, power supply 101 uses 9V batteries；Rectifier diode V1 is using cache switching diodes small-sized 1N4148；With
NOT gate A, NAND gate B, NAND gate C and NAND gate D use model CD4011；Triode V2 is using amplification positive half cycle signal
9013 type small-power NPN triodes；Triode V3 is using the 9012 type small-power NPN triodes for amplifying negative half-cycle signal.
In the course of work, electrode slice 201 is mounted on and is needed on thief-proof object, provided 9V voltages by power supply 101, work as people
After body touches, the rectified diode V1 rectifications of noise signal of human body sensing obtain a negative pressure, i.e., defeated to monostable circuit 301
Enter signal, the overturning of monostable circuit 301 enters transient state, and process is：According to the logical relation of " can seeing that 0 l ", when NAND gate A's
When pin 1 inputs negative pulse, the pin 3 of NAND gate A exports high level, this high level is added to drawing for NAND gate B through capacitor C1
Foot 5,6 makes the pin 4 of NAND gate B export low level, this low electricity feeds back to the pin 2 of NAND gate A again, because NAND gate A's draws
The high level that foot 3 exports will charge through resistance R1 to capacitor C4, and charging result can make the pin of the upper end NAND gate B of resistance R1
5,6 level constantly decline；When level is down to 1/2v, 4 foot of pin of NAND gate B exports high level, and circuit is restored to original
Stable state；When the upper ends resistance R1 export high level, 401 starting of oscillation of audio frequency oscillator of NAND gate C and NAND gate D compositions, with
The 11 pin outputting oscillation signals of NOT gate D push loud speaker after triode V2 and triode V3 power amplifiers by capacitor C4
601 send out alarm.
Claims (7)
1. a kind of novel touch formula alarm, including power supply（101）, electrode slice（201）, monostable circuit（301）, audio oscillation
Device（401）, audio-frequency power amplifier（501）And loud speaker（601）, it is characterised in that：The power supply（101）One end is grounded,
The other end by after conducting wire series capacitor C3 and rectifier diode V1 with the electrode slice（201）Connection；The electrode slice
（201）The monostable circuit is connected between rectifier diode（301）, the monostable circuit（301）The audio is connected to shake
Swing device（401）；The audio frequency oscillator（401）Connect the audio-frequency power amplifier（501）, the audio-frequency power amplifier
（501）Connect loud speaker（601）；The monostable circuit（301）Including NAND gate A, capacitor C1 and NAND gate B, should with it is non-
The pin 2 of door A connects the pin 4 of the NAND gate B, and the pin 3 of NAND gate A connect after the capacitor C1 with it is described with
The pin 5 of NOT gate B connects；The audio frequency oscillator（401）Including NAND gate C, capacitor C2 and NAND gate D, NAND gate C's
Pin 9 is connected with the pin 5,6 of the NAND gate B；The pin 10 of the NAND gate C connects the pin 13 of the NAND gate D, should
NAND gate C is parallel with resistance R2 between the capacitor C2 and the NAND gate D respectively, and the NAND gate is accessed after parallel connection
The pin 12 of D；The audio-frequency power amplifier（501）Including triode V2, triode V3 and capacitor C4, triode V2 and
One end is connected between the capacitor C3 and rectifier diode V1 after triode V3 series connection, other end ground connection；The capacitance
It is separately connected the triode V2 and triode V3, triode V2 and three after device C2 is in parallel with the pin 11 of NAND gate D
Connected between pole pipe V3 after capacitor C4 with the loud speaker（601）It is connected in parallel；The loud speaker（601）Resistance R1 is connected,
Resistance R1 connects the pin 5 of the NAND gate B.
2. a kind of novel touch formula alarm according to claim 1, it is characterised in that：The power supply（101）Using 9V
Battery.
3. a kind of novel touch formula alarm according to claim 1, it is characterised in that：The rectifier diode V1 is used
Cache switching diodes small-sized 1N4148.
4. a kind of novel touch formula alarm according to claim 1, it is characterised in that：The NAND gate A, NAND gate B,
NAND gate C and NAND gate D uses model CD4011.
5. a kind of novel touch formula alarm according to claim 1, it is characterised in that：The pin 1 of the NAND gate A connects
It is connected on the electrode slice（201）Between rectifier diode V1.
6. a kind of novel touch formula alarm according to claim 1, it is characterised in that：The triode V2 is using amplification
9013 type small-power NPN triodes of positive half cycle signal.
7. a kind of novel touch formula alarm according to claim 1, it is characterised in that：The triode V3 is using amplification
9012 type small-power NPN triodes of negative half-cycle signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820629193.0U CN208092893U (en) | 2018-04-28 | 2018-04-28 | A kind of novel touch formula alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820629193.0U CN208092893U (en) | 2018-04-28 | 2018-04-28 | A kind of novel touch formula alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208092893U true CN208092893U (en) | 2018-11-13 |
Family
ID=64052010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820629193.0U Expired - Fee Related CN208092893U (en) | 2018-04-28 | 2018-04-28 | A kind of novel touch formula alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208092893U (en) |
-
2018
- 2018-04-28 CN CN201820629193.0U patent/CN208092893U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 Termination date: 20190428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |