Power battery system composition and security risks

In recent years, with the rapid development of electric vehicles, how to solve the safety problems brought by electric vehicles has become a new topic and difficulty in the automotive industry. Since people have a process of cognition of new things, it is inevitable that there will be dou

Great God teaches you DIY a 12V boost ignition device

This circuit uses a boost circuit made by UC3843. The voltage input is 12V and the boost voltage can be adjusted from 22V to 190V. This circuit is suitable for the ignition of rockets or fireworks. Making this circuit is at your own risk.

Various factors that form the LED light decay

First, the quality of LED products themselves:
1. The LED chip used is not good, and the brightness is attenuated faster.
2, the production process is defective, LED chip heat can not be well exported from the PIN pin, res