2results about How to "Reduced driving ability" patented technology

The application provides a driving circuit for a three-phase system power switch device, the three-phase system comprises a power switch group corresponding to each phase, the power switch group comprises an upper bridge arm power switch and a lower bridge arm power switch, the driving circuit corresponds to the upper bridge arm power switch, the driving circuit comprises a capacitor voltage division circuit, a voltage stabilizing circuit and a push-pull driving circuit, the capacitor voltage division circuit is connected with two phases except the corresponding phase, the output end of the capacitor voltage division circuit is connected with the corresponding voltage stabilizing circuit, the push-pull driving circuit and the upper bridge arm power switch of the corresponding phase in sequence, direct power is taken from the three-phase power supply, and a stable direct current voltage is generated to reliably drive the power switch device. The application realizes efficient and reliable driving of the power switch device, and overcomes the limitations of the traditional driving circuit which depends on a heavy isolation transformer or a complex switch power supply.

The invention relates to the technical field of medical equipment control, in particular to a power supply circuit of a cold-state light source and electronic equipment. The input end of an output management module is connected with a power supply module, and the output end of the output management module is connected with an output interface for accessing an external load; the input end of the voltage reference module is connected with the power supply module. The first output end of the voltage reference module is connected with the reference input end of the current-limiting protection module. The sampling input end of the current-limiting protection module is connected with the output end of the output management module, and the output end of the current-limiting protection module is connected with the feedback end of the output management module; the second output end of the voltage reference module is connected with the reference input end of the boost control module; the sampling input end of the boost control module is connected with the output end of the output management module, and the output end of the boost control module is connected with the feedback end of the output management module. Intelligent management of the cold-state light source is realized, and the starting success rate, the operation stability and the safety of the light source system of the medical equipment are improved.