Sequential power distribution circuit

A warning system comprising:

• a power source having a given power capacity;
• a primary load;
• first means for detecting a warning condition;
• second means coupled to said power source and said primary load for applying an operating level of said power capacity to said primary load to operate said load at a first operating level in the absence of a warning condition detection by said first means;
• third means coupled to said primary load, said first means and said power source for applying a higher level of said power capacity than said operating level to said primary load upon detection by said first means of a warning condition to operate said load for warning purposes at a higher operating level than said first level;
• and
• fourth means coupled to said power source and primary load for providing an alarm when either of said power source and primary load become inoperative.

A power distribution circuit comprising;

• a power source;
• a primary load being coupled to and selectively energizable by said source;
• an energy reserve having a predetermined reserve capacity;
• first means for coupling said source to said reserve to provide said reserve with a flow of energy with the flow and accumulation of said flow being limited by said capacity when said load is not being energized;
• second means for retaining said energy in said reserve when said load is being energized by said source;
• a secondary load being coupled to the energy in said reserve;
• third means coupled to said power source and primary load for providing an alarm when either of said power source and primary load become inoperative.