초록 ▼

A controller operates to start an electric power generator, for example a gasoline engine electric power generator, when a demand is made for electric power when the user turns on an electric powered device, such as a circular saw, that is to be used. The generator runs as long as there is a demand

A controller operates to start an electric power generator, for example a gasoline engine electric power generator, when a demand is made for electric power when the user turns on an electric powered device, such as a circular saw, that is to be used. The generator runs as long as there is a demand for power, and when the demand ends, the generator stops after a predetermined adjustable delay period. Additionally, in the event the engine is to be started under cold start-up conditions, the starter is operated to avoid cyclical starting/stalling of the generator engine. The engine driving the generator will stop after a predetermined delay after the power demand is removed. If the demand for power stops for a time longer than the timeout period, the generator is stopped, and it will automatically start again when power is demanded. Alarm circuits are provided in the event of malfunction, and automatic/manual functions enhance the flexibility of the system.

대표청구항 ▼

[ What is claimed is:] [1.] A controller for controlling the operation of an electric power generator as a function of load demand, said electric power generator producing a 240V AC output and first and second 120V AC outputs developed from said 240V AC output relative to a neutral, said controller

[ What is claimed is:] [1.] A controller for controlling the operation of an electric power generator as a function of load demand, said electric power generator producing a 240V AC output and first and second 120V AC outputs developed from said 240V AC output relative to a neutral, said controller comprising:a manual switch switchable between a first position and a second position;sensing arrangement for sensing the presence and absence of a load on both said first and second 120V outputs of the electric power generator's output when said manual switch is in said first position, and for sensing the presence and absence of a load on one of said first and second 120V outputs and said 240V AC output when said switch is in said second position; andactivating means for directly activating the electric power generator responsive to said sensing arrangement sensing the presence of a load.