Emergency illuminator
OwnerKuan Yun Wanginventor
Life of this patent
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Abstract
An emergency illuminator includes a rectifying circuit for converting an input AC voltage to a DC voltage; an electric magnetic device having a primary side coil electrically connected to an output end of the rectifying circuit and a secondary side coil, wherein the secondary side coil becomes conductive when the AC voltage is interrupted; at least one lighting device having an anode electrically connected to a node of the secondary side coil of the electric magnetic device; a battery having a positive end electrically connected to the anode of the lighting device for providing the lighting device with working power; a control circuit electrically connected to a common end of the secondary side coil of the electric magnetic device, cathode of the lighting device, and a negative end of the battery.
Claims7
An energy-saving emergency illuminator, comprising:
- a rectifying circuit for converting an input AC voltage to a DC voltage;
- an electric magnetic device having a primary side coil electrically connected to an output end of the rectifying circuit and a secondary side coil, wherein the secondary side coil becomes conductive when the AC voltage is interrupted;
- at least one lighting device having an anode electrically connected to a node of the secondary side coil of the electric magnetic device;
- a battery having a positive end electrically connected to the anode of the lighting device for providing the lighting device with working power;
- and
- a control circuit electrically connected to a common end of the secondary side coil of the electric magnetic device, a cathode of the lighting device, and a negative end of the battery;
- wherein the control circuit drives the lighting device to turn on when the secondary side coil of the electric magnetic device becomes conductive.
Dependencies are inferred from the claim text.