Traditional Chinese SN-B electronic anti-snoring device: Circuit Design, Parts List & Workshop Prototype Guide
In short: Traditional Chinese SN-B electronic anti-snoring device. 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 3659 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.
SN-B type electronic anti-snoring deviceSnorers snore in a state of deep sleep due to improper lying posture and other reasons that cause the respiratory system and airway to be blocked. Therefore, this product uses an external safe high-voltage pulse to discharge instantaneously to stimulate the patient's skin and change the patient's lying posture, thereby making the respiratory tract clear and smooth, and achieving the purpose of stopping snoring.This anti-snoring device has two output electrodes, which should be placed close to the base of the patient's arm before going to sleep. The electrode output has two levels: "strong" and "weak" to adapt to patients of different genders, ages and different sensitivity levels.In addition to a small, highly sensitive electret microphone inside (which can directly pick up snoring signals in the summer without covering the quilt), the anti-snoring device also comes with a small microphone connected by an external lead, so that in winter, after the anti-snoring device on the wearer's arm is covered with quilts, the snoring signal can still be picked up by an external microphone (usually on the collar of the patient's shirt or quilt).The schematic block diagram of the SN-B electronic anti-snoring device is shown in Figure 168-1. The circuit principle is shown in Figure 168-2. When in use, turn on the triple switch S, add 3V DC voltage (battery-powered) to the whole machine, and enter the "weak" output state. When the wearer starts snoring, the snoring signal is picked up by the microphone (or electret microphone BP), and is coupled to the secondary amplification device composed of transistors VT1, VT2 through capacitors C1 and C2 for amplification. C3 is a high-frequency short-circuit capacitor set up to prevent pulse false trigger discharge caused by sudden high-frequency noise from the outside. R3, VT1, VT2, etc. form the current parallel negative feedback in the amplifier circuit to improve the amplification accuracy. alt="238.jpg (16473 bytes)">Figure 168-1 …
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Lei Cheng
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