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Electron generator, net charge generating device and electrostatic loudspeaker

A technology of electronic generators and generating devices, which is applied in the direction of electrostatic transducer speakers, microphones, measuring devices, etc., can solve the problems of large volume and unusable electrostatic speakers, and achieve the effect of increasing electrostatic voltage

Pending Publication Date: 2020-04-10
董耀斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Disadvantages of electrostatic speakers: Polarization voltage is required, generally 2500-3500V, provided by high-voltage DC power supply, and high-voltage DC power supply is relatively large, generally above 12cm×8em×2cm, making electrostatic speakers unable to be used in mobile portable devices

Method used

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  • Electron generator, net charge generating device and electrostatic loudspeaker
  • Electron generator, net charge generating device and electrostatic loudspeaker
  • Electron generator, net charge generating device and electrostatic loudspeaker

Examples

Experimental program
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Effect test

Embodiment 1

[0080] Embodiment 1: a kind of electron generator provided by the present invention, serial number is (803), as Figure 7As shown, it includes: a first light-emitting component (2), a convex lens (3), a conductive and transparent first anode (1), a conductive first cathode (5), and a conductive first auxiliary electrode (6) and an insulating sealed casing (7); the first anode (1) is to deposit a thin layer (about a few tenths) on the surface of the convex lens (3) facing the first cathode (5) side mm) transparent conductive film; the first cathode (5) is a disk-shaped conductor whose middle is thinner than the edge and the central area of ​​both sides is concave, and the surface of the first cathode (5) is a smooth curved surface , the first cathode (5) is covered with a thinner (about several microns thick) photocathode material layer (4) on the concave surface of the first anode (1) side; the photocathode material layer ( 4) It can be made of multi-alkali antimonide such as...

Embodiment 2

[0083] Embodiment 2: A kind of net electric charge generator provided by the present invention, serial number is 〖J001〗, such as Figure 8 As shown, it includes: an electronic generator (803), a voltage comparator (802), an auxiliary voltage generator (801) and a light source controller (804); the control signal output terminal of the voltage comparator (802) ( Figure 8 Indicated by a and b) simultaneously with the signal input terminals of the light source controller (804) and the auxiliary voltage controller (801) ( Figure 8 middle use a 1 , b 1 ) is kept electrically connected, the voltage output terminal of the light source controller (804) is kept electrically connected to the power interface of the first light-emitting component (2), and the auxiliary voltage generator (801) can provide forward and reverse Constant voltage (just a few volts), the output voltage is added between the first anode (1) of the electron generator (803) and the first auxiliary electrode (6);...

Embodiment 3

[0084] Embodiment 3: Utilize the net charge generating device (J001) described in embodiment 2 to provide the vibrating membrane (903) of the electrostatic speaker with a circuit such as Figure 9 shown; the charge output terminal (120) of the net charge generating device (J001) is electrically connected to the first conductive layer of the diaphragm (903), and the potential detection signal input of the net charge generating device (J001) The terminal (121) is electrically connected to the second conductive layer of the diaphragm (903). Working process: such as Figure 9 If the static electricity on the first conductive layer of the vibrating membrane (903) decreases below the preset normal operating power range, due to induction, the static electricity on the second conductive layer of the vibrating membrane (903) will also decrease accordingly Small, the voltage comparator (802) detects this power change through the potential detection signal input terminal (121) (the dete...

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Abstract

The invention provides a net charge generating device and an electron generator used for the net charge generating device, and also provides a vibrating diaphragm used in an electrostatic loudspeaker.In the prior art, electrostatic charges required by a vibrating diaphragm of an electrostatic loudspeaker are injected through a high-voltage direct-current power supply, and the high-voltage direct-current power supply is large in size, so that the electrostatic loudspeaker is not suitable for being used on portable electronic equipment, which is a defect of the electrostatic loudspeaker. The invention provides a net charge generation device to replace a high-voltage direct-current power supply in an electrostatic loudspeaker in the prior art. The net charge generating device is simple in structure and convenient to miniaturize, so that the size of the electrostatic loudspeaker designed by the net charge generating device is greatly reduced, and the using requirements of miniaturization,lightness and thinness of the electrostatic loudspeaker in mobile portable equipment can be met.

Description

Technical field: [0001] The invention relates to the field of audio-visual technology, in particular to an electronic generator, a net charge generating device and an electrostatic speaker. Background technique: [0002] Since the 1920s, speakers of various sound modes have appeared. Among them, dynamic speakers (driven by magnetic field force) and electrostatic speakers (driven by electrostatic force) have become the two main development directions that sound engineers consider. Due to the consideration of technology, process and cost, the industry chose the dynamic speaker, which has a simple structure and high efficiency, and can basically meet the requirements of the audio system for the speaker at that time, and has always been the mainstream product in the market. [0003] With the emergence of digital technology for audio source equipment and high-fidelity audio amplifiers, the widely used dynamic speakers have been difficult to keep up with the development of audio t...

Claims

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Application Information

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IPC IPC(8): H04R19/02H04R7/10
CPCH04R7/10H04R19/02H04R2201/003H04R2307/00G01D21/00
Inventor 董耀斌
Owner 董耀斌
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