Electronic Shockproof Earplugs: Traditional Chinese Circuit Design Guide
In short: Traditional Chinese Electronic shockproof earplugs. This entry documents a circuit & prototype taken from Chinese practical-technology literature, written for small-scale makers and home producers. The text below is the full English translation of the original Chinese workshop notes, covering materials and quantities, the step-by-step sequence, and the practical cautions recorded in the source. Roughly 1838 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.
Electronic shockproof earplugsThe circuit schematic is shown in Figure 207. The electronic shockproof earplugs are composed of a microphone, an amplifier circuit, an earplug machine, etc. The microphone turns the voice signal into an electrical signal, which is amplified by VT1~VT3 and then impedance transformed by VT4. The low-impedance output drives the headset to work. When high decibel noise enters the microphone, the microphone turns it into an electrical signal. Due to the high amplitude of the noise electrical signal, when the signal enters the VT1 ~ VT3 amplification circuit, the amplifier circuit enters a saturated state. As a result, no noise is emitted in the earphones, thus preventing high decibel noise from entering the ear. Wh …
Sign in to unlock
One-time payment per article, billed in credits (1 $ = 100 credits). You will review the invoice and the non-refundable digital-asset policy before anything is charged. The PDF is generated on demand and embeds a licensing watermark.
Unlock this article
One-time payment · permanent access after unlock · 1 $ = 100 credits
Member level pricing for this article
| Level | Cumulative top-up | Discount | Your price | You save |
|---|---|---|---|---|
| Free | Free | — | 3,074 credits | — |
| Bronze | $100.00+ | 2% off | 3,013 credits | 61 credits |
| Silver | $1,000.00+ | 5% off | 2,920 credits | 154 credits |
| Gold | $5,000.00+ | 10% off | 2,767 credits | 307 credits |
| VIP | $20,000.00+ | 15% off | 2,613 credits | 461 credits |
Prices are billed in credits (1 $ = 100 credits). Your level upgrades automatically as your cumulative top-up grows. Top up to unlock a higher discount ›
All articles are digital assets. Once a PDF is downloaded, the purchase is final and non-refundable.
Please log in to unlock this article.
Payment Methods
pay@viprole.com
Lei Cheng
pay@viprole.com
Lei Cheng