Do you want to let the smoke out of the $30.00 driver or the sting of $100.00 leds?
Lesser of 2 evils.
do you use a crowbar in your diy light?
i hear you only talking but never see a circuit or anything else from you.
in my first ever post here i show up a way how to protect two parallel led-string against overload.
https://www.rollitup.org/attachments/led-other-lighting/2262166d1342796646-diy-modular-led-light-power.jpg
this was only necessary for the Parallel strings, all other protection is done by the driver.
from the meanwell user manual
2.2 OVERCURRENT PROTECTION (OCP) / OVERLOAD PROTECT
ION (OLP)
Mean Well Power Supplies are equipped with a protection circuit that will automatically operate when the output current and/or
output power exceeds a minimum 105% of the rating.
Types of Protection:
a.
Foldback Current Limiting:
The Foldback Current Limiting circuit is designed to
linearly decrease both the voltage and current to
a level that will prevent the power supply from being damaged during
overcurrent/overload conditions.
Foldback Current Limiting is most often used in
linear power supplies but it is sometimes used in switching power supplies.
b.
Constant Current Limiting:
Constant Current Limiting allows the output current
to remain stable, but reduces the output voltage to a level that permits the
safe operation of the power supply. Constant Current Limiting is preferred when driving devices such as motors, incandescent
lamps and highly capacitive loads which have a high
initial current. It’s also preferred for charging lead-acid batteries.
c.
Constant Power Limiting:
Constant Power Limiting linearly reduces the output
voltage and simultaneously allows the output current to increase.
Constant power limiting is most often used in multiple voltage output switching power supplies.
See example of D-60A in section 2.1
d.
Hiccup Current Limiting:
When overloaded, the output voltage and current will be shut down for a short period of time and then automatically attempt to
recover again until the fault condition is removed.
In a few cases (S-150) the output voltage is shut
down permanently, reducing
the output voltage and current to zero. A manual recovery is then necessary. Some power supplies may have constant current
down to 75% or 50% of the rated output voltage below this the hiccup mode operates. In some cases the power supply will
operate in constant current mode and then shutdown
after a time delay of 3 to 5 seconds.
