Security type high-fidelity electrostatic headset

Abstract

The invention relates to a security type high-fidelity electrostatic headset. The security type high-fidelity electrostatic headset comprises a booster circuit, a pre-amplifier circuit, a high-fidelity power amplifier circuit, a horn having a permanent polarization voltage, and a power supply management circuit for connecting a power supply; and the power supply management circuit, the booster circuit, the pre-amplifier circuit, the high-fidelity power amplifier circuit, and the horn having the permanent polarization voltage are sequentially connected. Therefore, a high-voltage polarization circuit is omitted; and while the electrostatic headset achieves the required high-fidelity output effect, the usage of components is reduced, the cost is decreased and the energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of electrostatic earphones, in particular to a safe high-fidelity electrostatic earphone. Background technique [0002] The speaker of the existing electrostatic earphone needs to be connected to a power amplifier circuit, and the voltage output by the high-voltage polarization circuit of the power amplifier circuit is used to polarize the speaker. Due to the addition of a high-voltage polarization circuit, the circuit cost is high. At the same time, there are too many electrical components, which is easy to Cause power loss and component damage. [0003] In addition, in order to ensure the high-fidelity output of the speaker, the maximum output voltage of the high-voltage polarization circuit is 580V. If the voltage is too large, the safety is poor, and it is easy to cause damage to other components, thereby shortening the service life of the electrostatic earphone. [0004] Therefore, in the patent applic...

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Problems solved by technology

[0002] The speaker of the existing electrostatic earphone needs to be connected to a power amplifier circuit, and the voltage output by the high-voltage polarization circuit of the power amplifier circuit is used to polarize the speaker. Due to the addition of a high-voltage polarization circuit, the circuit cost is high. At the same time, there are too many electrical components, which is easy to Cause power loss and component damage

[0003] In addition, in order to ensure the high-fidelity output of the speaker, the maximum output voltage of the high-voltage polarization circuit is 580V. If the voltage is too large, the safety is poor, and it is easy to cause damage to other components, thereby shortening the service life of the electrostatic earphone.

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