IT1044627B - ELECTROMAGNETIC TRUMPET IN PARTICULAR FOR VEHICLES - Google Patents
ELECTROMAGNETIC TRUMPET IN PARTICULAR FOR VEHICLESInfo
- Publication number
- IT1044627B IT1044627B IT2750375A IT2750375A IT1044627B IT 1044627 B IT1044627 B IT 1044627B IT 2750375 A IT2750375 A IT 2750375A IT 2750375 A IT2750375 A IT 2750375A IT 1044627 B IT1044627 B IT 1044627B
- Authority
- IT
- Italy
- Prior art keywords
- trumpet
- vehicles
- electromagnetic
- electromagnetic trumpet
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0223—Driving circuits for generating signals continuous in time
- B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
- B06B1/0246—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal
- B06B1/0261—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal taken from a transducer or electrode connected to the driving transducer
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
- H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
- H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
- H03K3/282—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
- H03K3/2823—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable using two active transistor of the same conductivity type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/50—Application to a particular transducer type
- B06B2201/52—Electrodynamic transducer
- B06B2201/53—Electrodynamic transducer with vibrating magnet or coil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742445344 DE2445344C3 (en) | 1974-09-23 | 1974-09-23 | Electromagnetic horn |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1044627B true IT1044627B (en) | 1980-04-21 |
Family
ID=5926494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2750375A IT1044627B (en) | 1974-09-23 | 1975-09-22 | ELECTROMAGNETIC TRUMPET IN PARTICULAR FOR VEHICLES |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2445344C3 (en) |
FR (1) | FR2285674A1 (en) |
GB (1) | GB1480694A (en) |
IT (1) | IT1044627B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE435777B (en) * | 1979-01-29 | 1984-10-15 | Ibuki Kogyo Co Ltd | ELECTRIC HORN |
US5049853A (en) * | 1987-10-19 | 1991-09-17 | Sparton Corporation | Electric horn with solid state driver |
IT1228767B (en) * | 1989-03-29 | 1991-07-03 | Electronsystem Spa | ELECTRONICALLY PILOTED HORN FOR MOTOR VEHICLES. |
CN109859963B (en) * | 2019-01-24 | 2020-06-16 | 西安维国电子科技有限公司 | Integrated electromagnetic drive switch for subnanosecond square wave generator |
-
1974
- 1974-09-23 DE DE19742445344 patent/DE2445344C3/en not_active Expired
-
1975
- 1975-08-20 FR FR7525784A patent/FR2285674A1/en active Granted
- 1975-09-22 IT IT2750375A patent/IT1044627B/en active
- 1975-09-23 GB GB3891375A patent/GB1480694A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2285674B3 (en) | 1978-04-07 |
GB1480694A (en) | 1977-07-20 |
DE2445344B2 (en) | 1980-01-31 |
DE2445344A1 (en) | 1976-04-08 |
FR2285674A1 (en) | 1976-04-16 |
DE2445344C3 (en) | 1980-10-09 |
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