CN2172901Y - Integrated circuit electric horn - Google Patents
Integrated circuit electric horn Download PDFInfo
- Publication number
- CN2172901Y CN2172901Y CN 93234834 CN93234834U CN2172901Y CN 2172901 Y CN2172901 Y CN 2172901Y CN 93234834 CN93234834 CN 93234834 CN 93234834 U CN93234834 U CN 93234834U CN 2172901 Y CN2172901 Y CN 2172901Y
- Authority
- CN
- China
- Prior art keywords
- integrated circuit
- pin
- foot
- model
- electric horn
- 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 - Fee Related
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model discloses an integrated circuit electric horn used for motor vehicles, which only uses one integrated circuit and has the advantages of simple structure, low cost and good reliability. The utility model can produce two kinds of humming sounds of 500 hertz and 300 hertz. The 1 foot of the integrated block IC with the model number TFW 300-500 BT is connected with the positive pole of a power supply through a switch, and an audio frequency coil curl provided with a sound device is connected between the 1 foot and the 3 foot of the integrated block; the 2 foot is connected with the negative pole of the power supply, and the 4 foot is connected with the negative pole of the power supply through another switch.
Description
The utility model relates to the integrated circuit electronic horn that is used for motor vehicle.
The existing integrated circuits electric horn all is to adopt elements such as polylith integrated circuit and resistance, appearance, diode to constitute, and complex structure, technology are cumbersome, cost height, stability and poor reliability.
The purpose of this utility model is, designs a kind of integrated circuit electric horn, have simple in structure, cost is low and the characteristics of stable and good reliability.
The technical solution of the utility model is, it comprises the acoustical generator of being with voice coil, its design feature is, model is that 1 pin of the integrated circuit (IC) of Tfw300-500BT connects positive source through switch, and be connected to sonorific voice coil between its 1 pin and 3 pin, 2 pin connect power cathode, and 4 pin connect power cathode through another switch.
Make below in conjunction with drawings and Examples and to further specify.
Description of drawings: Fig. 1 is a circuit structure, and Fig. 2 is the circuit structure of integrated circuit (IC) among Fig. 1.
As shown in Figure 1, the utility model comprises the acoustical generator of band voice coil L, and its design feature is, model is that 1 pin of integrated circuit (IC) of Tfw300-500TB is through K switch
1Connect positive source, be connected to sonorific voice coil L between 1 pin and 3 pin, 2 pin connect power cathode, and 4 pin are through K switch
2Connect power cathode.
Referring to Fig. 1, the course of work of the present utility model is Closing Switch K
1And energized, then coil L gets electric sounding; Closure or cut-out K switch
2Then can change sonorific tone (sending 300 hertz of basses or 500 hertz of high pitchs).
Principle of work of the present utility model as shown in Figure 2, Fig. 2 has pointed out the structure of described IC, it is by triode T
1, T
2, resistance R
2, R
3, capacitor C
1Form the complementary audio frequency oscillator of twin crystal pipe, its power input has current-limiting resistance R
1With voltage stabilizing diode D
1, the output of this audio frequency oscillator is delivered to by triode T
3, T
4, resistance R
5, R
6, diode D
2, capacitor C
2The power amplification circuit of forming, its output are connected to voice coil and promote the acoustical generator pronunciation; Transistor T
5Conducting can change the operating voltage (promptly controlling described operating voltage) of audio frequency oscillator by it, thereby its oscillation frequency is changed, make acoustical generator send bass and two kinds of tones of high pitch.
As known from the above, the utility model only has an integrated circuit Tfw300-500BT, has just realized having the electric horn function of high pitch and bass, because it is simple in structure, cost is reduced, and job stability and good reliability.Owing to saved peripheral circuit, realized exempting from debugging aborning, use unified movement.
Claims (2)
1, a kind of integrated circuit electric horn, comprise the acoustical generator of being with voice coil, it is characterized in that, model is that 1 pin of the integrated circuit (IC) of Tfw300-500BT connects positive source through switch, and be connected to sonorific voice coil between 1 pin and 3 pin, 2 pin connect power cathode, and 4 pin connect power cathode through another switch.
2, integrated circuit electric horn according to claim 1 is characterized in that, described Tfw300-500BT integrated circuit (IC) is by triode T
1, T
2, resistance R
2, R
3, capacitor C
1Form the complementary audio frequency oscillator of pair transistor, its output is delivered to by triode T
3, T
4, resistance R
5, R
6, diode D
2, capacitor C
2The power amplification circuit of forming, transistor T
5The operating voltage of control audio oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234834 CN2172901Y (en) | 1993-10-14 | 1993-10-14 | Integrated circuit electric horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234834 CN2172901Y (en) | 1993-10-14 | 1993-10-14 | Integrated circuit electric horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2172901Y true CN2172901Y (en) | 1994-07-27 |
Family
ID=33810407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93234834 Expired - Fee Related CN2172901Y (en) | 1993-10-14 | 1993-10-14 | Integrated circuit electric horn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2172901Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2507776A1 (en) * | 2009-12-03 | 2012-10-10 | Armadillo Alarms Ltd. | Movement control device and method of use thereof |
-
1993
- 1993-10-14 CN CN 93234834 patent/CN2172901Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2507776A1 (en) * | 2009-12-03 | 2012-10-10 | Armadillo Alarms Ltd. | Movement control device and method of use thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |