[DIY tutorial] assembling low-cost LED bulbs

I bought a few LED bulbs on Taobao some time ago. I plan to do a few LED lights myself. Here is a tutorial on making LED bulbs. LED Bulb Kit (I bought the lamp beads cheaper, the color is white light, there is also warm yellow, 0.65 yuan a, power 1W) Comparison of aluminum subst ......

Precautions for chip capacitors in LED driver circuits

The full name of the chip capacitor is called a multilayer (stacked, laminated) chip ceramic capacitor, abbreviated as MLCC. When the MLCC is subjected to a temperature shock, cracks easily occur from the welded end. At this point, the small size capacitor is relatively better than t ......

Microsoft Corporation (China) R & D Group Headquarters L…

The headquarters of Microsoft (China) R&D Group is located in Zhongguancun Square, the core business district of Zhongguancun, covering an area of ​​11,600 square meters. Two buildings are built in the headquarters campus. The south building is 80 meters high, the ground floor is 1 ......

Analysis of Development of Relay Industry in China

The relay is an automatic switch element with isolation function. It is widely used in remote control, telemetry, communication, automatic control, electromechanical integration, and power electronic equipment. It is one of the most important control elements. At present, China's rela ......