halogen 11vac to led 12vdc ????

[Kripton2035]

hi,

I want to change the lights in my kitchen
they are now some 20w halogen bulbs, with a power supply giving some 11v ac rms

I want to replace them with led stripes...
they need 12vdc and 1 amp for the stripe I use.
I want to keep the halogen transformers already in place as they are not easily removable...

I use a 2 Amp diode bridge and a 150µF capacitor just after
it is working but the diode bridge gets too hot and I must use another scheme or it wont last a long time like this ...

what should I use for this ? a buck regulator ?
is it normal that a 2A diode bridge gets so hot with "only" 1 Amp throught it ?
does anybody have another way to handle this problem ?
thanks.

 

[ALERTLINKS]

For continuous operation in a sealed container, heating of devices is a problem. Nowadays many components are made for operating at temperature 175 C. You can consult datasheet for particular device. Yoy can use heatsink made of aluminium sheet wraped around diode.Or use schottky diodes they ginerate less heat.

https://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003166.pdf