led lamp circuit的相關文章
led lamp circuit的相關公司資訊
led lamp circuit的相關商品
1 Watt LED Emergency Lamp Circuit Using Li-Ion Battery | Homemade Circuit Designs Just for You
瀏覽:1386
日期:2024-04-21
The post explains an emergency light circuit using 1 watt LED and Li-ion cell ... The PNP transistor is held reversed biased as long as mains AC stays active, while the Li-Ion cell is charged gradually charged. In case the mains AC fails, the transistor s...看更多