Solar-powered light assembly with automatic light control
AssigneeCarmanah Technologies Corp.
InventorsIon Thoma, Zbigniew Siemiatkowski, Lysle Brock Russell
Life of this patent
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Abstract
A solar-powered light assembly comprising at least one light-emitting diode (LED) powered by a rechargeable battery, a solar panel to recharge the battery and to sense light levels, and control circuitry to monitor the rechargeable battery at intervals. At the start of an interval, preferably, the transition from night to day, the control circuitry sets the at least one LED to output light at a pre-determined level based on the battery voltage at the start of said interval. This control scheme is used to adjust the LED output to the available solar illumination recharging the battery to ensure reliable and efficient operation.
Claims17
A solar-powered light assembly comprising:
- at least one light-emitting diode (LED) powered by a rechargeable battery;
- a solar panel to recharge the battery and to sense light levels;
- and
- control circuitry to monitor the rechargeable battery at intervals and, at the start of an interval, set the at least one LED to output light at a pre-determined level based on the battery voltage at the start of said interval.
A method of controlling a solar-powered light assembly having at least one light-emitting diode (LED) 1powered by a rechargeable battery and a solar panel to recharge the battery and to sense light levels, comprising the steps of:
- monitoring the rechargeable battery at intervals;
- setting the at least one LED to output light at a pre-determined level at the start of an interval based on the battery voltage at the start of said interval.
Dependencies are inferred from the claim text.