English
Voltage controlled LEDs are known as commonly used LED strips.
The most common are LED strips with 12 VDC nominal voltage, either monochrome or two-colour, or RGB with a common terminal + (i.e. anodes of diodes coupled on a strip).
Slightly less common are LED strips with 24 VDC nominal voltage.
For these LED strips there is a dimming module C-DM-0006M-ULED. The module can dim and power LED strips with 12 ÷ 24 VDC nominal voltage, 6 independent channels in total, with a maximum voltage per channel of 4 A under the equal load of all the outputs of one module. Each output can be loaded with max. 6 A, but the total current of all outputs in one module must not exceed 24 A!
The C-DM-0006M-ULED module cannot be used for dimming RGB strips with a common negative terminal!
The C-DM-0006M-ULED module cannot be used for dimming current-actuated LED strips!
The C-DM-0006M-ULED module is not fitted with short-circuit protection of outputs !
The defined characteristics of LED strips include - in addition to the nominal voltage - the wattage per unit of length -
e.g. the power LED strip 60/NW 2200 CREE has the wattage of 36 W/m;
with a nominal voltage of 12V, which corresponds to a maximum consumption of 3 A/m.
It means that with maximum current of 4 A, about 1.33 cm LED strip can be dimmed via one output of the C-DM-0006M-ULED or a 2 m long LED strip can be dimmed with a maximum current of 6 A.
When powering LED strips over longer distance, it is also necessary to allow for voltage drops in the supply cables. It is recommended to calculate losses and accordingly select the corresponding diameter of the connection cables. For an example of powering of the power strip see Chapter An example of connecting the power LED strip over a long distance to C-DM-0006M-ULED.
Despite their energy efficiency, the LED strips get warm during the operation , especially the power LED strips; therefore they require thorough heat dissipation, and it is always necessary to take into account the LED strip manufacturer's requirements for adequate cooling - the cooling profiles, etc.