High-voltage surge protection circuit based on double solid discharge tubes

• Main Authors: QIN LING, CHEN LONGFEI, MAO BOYU, WU JUN, LAI LIUQI
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• Subjects: AMMUNITION; AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR; BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The invention belongs to the field of protection circuits, and particularly relates to a high-voltage surge protection circuit based on double solid discharge tubes, which comprises the solid discharge tubes. The input end of the solid discharge tube is connected with a bus of the electronic digital detonator; the output end of the solid discharge tube is in circuit connection with the special control chip for the electronic digital detonator; when the solid discharge tubes are subjected to high-voltage surge, the solid discharge tubes D1 and D2 form stable short-circuit breakdown under the condition that the solid discharge tubes D1 and D2 are not exploded when the solid discharge tubes are subjected to the high-voltage surge, so that the voltage at the inlet of the electronic digital special control chip circuit is further reduced, a thorough short circuit is formed, and the high-voltage surge is avoided. And the rear-end circuit is further protected, and meanwhile, the discharge of high-voltage surge energ