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Using our Switching Power Supplies
While these little supplies have the appearance of those "battery eliminator" DC plug-ins, and are about the same size, don't be fooled. These switching supplies are a very sophisticated, well protected, regulating DC power source. Because the DC output is highly regulated and very pure, it is ideally suited for powering lighting projects containing LEDs.
To ensure optimum performance as a voltage source for your lighting needs, we recommend the following guidelines:
Circuit Boards for Lighting Projects
If your planning a lighting project that will include more than just a single LED, we recommend using some kind of small PC (printed circuit) board to solder your resistors, LED hookup wires, power wires, and any switch wiring to. This makes a tidy place to connect everything that can be centrally located. It also makes it easier if you need to add a few lights in the general vicinity or make other changes at some future time.
Further, if you're planning a larger project or multiple ones at different places on a layout, these "sub-boards" can easily be mounted under the layout and interconnected for power hookup to a single power source, by using a power bus wiring scheme.
For those of you considering this approach, we've developed a circuit board to cover a very wide range of LED hookup options. Our N8102 LED Power Distribution Board can handle up to 28 LED connections and will support series or parallel connections. These boards can be easily daisy-chained together to support power bus wiring for multiple lighting districts. Our N8105 LED Power Distribution Jr. can handle up to 8 LED connections. These can also be part of a power bus for wiring of multiple lighting districts.
Wiring up multiple "sub-boards" to a common power source is an efficient way to share a power supply. This is commonly referred to as a power bus and there are several things to remember when using this wiring scheme:
Below is a schematic example of a typical power bus arrangement:
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