On 3/11/2013 2125, Cortland Richmond wrote:
On 3/11/2013 1952, Mike Ryan wrote:
The landscaping lights turn out to be 12 volt AC powered and not 12
volt DC powered. All the suggestions about a car battery and/or an
Astron or other linear power supply now go out the window. -M
But the converter is still very likely a switch-type converter;
modern-day efficiency rules often rule out transformers on account of
core losses.
Cortland Richmond
KA5S
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And even if it does use a linear 12VAC transformer, the LED's themselves
require a constant current source -- and probably incorporate switching
regulators at each fixture. Have you contacted the system maker?
Cortland
KA5S
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