NL7609606A - Converter for LF oscillations into acoustic vibrations - has capacitor loudspeaker connected to coil centre tap with ends connected via switches - Google Patents

Converter for LF oscillations into acoustic vibrations - has capacitor loudspeaker connected to coil centre tap with ends connected via switches

Info

Publication number
NL7609606A
NL7609606A NL7609606A NL7609606A NL7609606A NL 7609606 A NL7609606 A NL 7609606A NL 7609606 A NL7609606 A NL 7609606A NL 7609606 A NL7609606 A NL 7609606A NL 7609606 A NL7609606 A NL 7609606A
Authority
NL
Netherlands
Prior art keywords
acoustic vibrations
centre tap
oscillations
converter
oscillation
Prior art date
Application number
NL7609606A
Other languages
Dutch (nl)
Original Assignee
Philips Nv
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Priority to NL7609606A priority Critical patent/NL7609606A/en
Publication of NL7609606A publication Critical patent/NL7609606A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

The device is used to convert low frequency electrical oscillations via a reactive transducer into acoustic vibrations. The transducer is part of a tuned vibration circuit. The oscillating circuit consists of a capacitor (1) which functions as a loud speaker. One side is connected to the centre tap (2) of a coil (3). The ends of the coil sections (4, 5) are connected to the loudspeaker via switches (6, 7). A l.f. oscillation approx. equal to the resonance frequency is fed to the circuit which will use electronic switches. The switches will operate in anti-phase and in synchronism with the resonant frequency at a number of instances when the energy content of the transducer is at zero. The high frequency oscillation is modulated by the l.f. oscillation.
NL7609606A 1976-08-30 1976-08-30 Converter for LF oscillations into acoustic vibrations - has capacitor loudspeaker connected to coil centre tap with ends connected via switches NL7609606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7609606A NL7609606A (en) 1976-08-30 1976-08-30 Converter for LF oscillations into acoustic vibrations - has capacitor loudspeaker connected to coil centre tap with ends connected via switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7609606A NL7609606A (en) 1976-08-30 1976-08-30 Converter for LF oscillations into acoustic vibrations - has capacitor loudspeaker connected to coil centre tap with ends connected via switches

Publications (1)

Publication Number Publication Date
NL7609606A true NL7609606A (en) 1978-03-02

Family

ID=19826813

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7609606A NL7609606A (en) 1976-08-30 1976-08-30 Converter for LF oscillations into acoustic vibrations - has capacitor loudspeaker connected to coil centre tap with ends connected via switches

Country Status (1)

Country Link
NL (1) NL7609606A (en)

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Legal Events

Date Code Title Description
BV The patent application has lapsed