LED Rechargable Lamps

[Mbagwu]

How does the charging mechanism of most LED lamp operate since they don't make use of transformers to step do voltage

 

[KrisBlueNZ]

They probably use a "capacitor fed" power supply where a capacitor is used as a current limiter.

http://www.google.com/search?q=capacitor fed power supply&tbm=isch
http://www.talkingelectronics.com/projects/200TrCcts/101-200TrCcts.html#3
http://www.talkingelectronics.com/projects/200TrCcts/101-200TrCcts.html#3A

 

[Mbagwu]

Thanks KrisBlueNZ