Power supply peak suppression circuit and anti-collision early warning device using same

• Main Authors: LIANG XUQI, NIU HONGZHI, DU RUXIA
• Format: Patent
• Language: Chinese; English
• Published: 26.05.2023
• Subjects: ALARM SYSTEMS; APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TRAFFIC CONTROL SYSTEMS

The utility model provides a power supply peak suppression circuit and an anti-collision early warning device using the same. The power supply peak suppression circuit comprises a voltage-regulator tube D1, a transformer T1, a silicon controlled rectifier U4, a field effect transistor Q1A and a triode Q2. One end of a primary winding of the transformer T1 is connected with a power supply input end through a diode D1, a grid electrode of the field effect transistor Q1A is grounded through a triode Q2, a base electrode of the triode Q2 is connected with a negative electrode end of a silicon controlled rectifier U4, the negative electrode end of the silicon controlled rectifier U4 is connected with the primary winding of the transformer T1, and the positive electrode end of the silicon controlled rectifier U4 is grounded; a resistor R3 and a resistor R6 are connected in series between the primary winding of the transformer T1 and the ground end, and the connection point of the resistor R3 and the resistor R6 is