CPC H04B 3/542 (2013.01) [H02M 7/217 (2013.01); H03K 5/00 (2013.01); H03K 2005/00013 (2013.01)] | 20 Claims |
1. An intermediate device for powering a controller using power from an environmental system, the intermediate device comprising:
a plurality of wire connectors comprising:
a power wire connector that is configured to receive a power wire from the environmental system;
a command wire connector that is configured to receive a command wire from the controller, wherein the command wire is associated with a function of the environmental system; and
a return wire connector that is configured to receive a return wire from the controller; and
a resistance circuit between the power wire connector and the command wire connector, wherein the resistance circuit is configured to:
provide a first resistance when the command wire connector is shorted to the return wire connector; and
provide a second resistance when the command wire connector is not shorted to the return wire connector, wherein the second resistance is less than the first resistance.
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