Emergency lighting driver and operation method thereof
AssigneeTridonic GmbH & Co KG
InventorsJagjitpati Shukla, Deepak Makwana
Life of this patent
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Abstract
An emergency driver (100) of this disclosure for driving emergency lighting means comprises a battery (101) operably coupled to the emergency lighting means, a preferably resistive temperature sensor (104) configured to generate a temperature signal (Ts) corresponding to a temperature of the battery (101), at least a resistive heating element (102) configured to increase the temperature of the battery (101) by a heating operation, and a controller (106) configured to perform in a time multiplex manner, the reading of the temperature sensor (104) and the operation of the resistive heating element (102).
Claims18
An emergency driver (100) for driving emergency lighting means comprising:
- a battery (101) operably coupled to the emergency lighting means,
- a temperature sensor (104) configured to generate a temperature signal (Ts) corresponding to a temperature of the battery (101),
- at least a resistive heating element (102) configured to increase the temperature of the battery (101) by a heating operation, and
- a controller (106) configured to perform in a time multiplex manner, the reading of the temperature sensor (104) and the operation of the resistive heating element (102).
A method (500) for a time-multiplexed resistive heating and temperature sensing of a battery for an emergency driver comprising:
- generating (501) a temperature signal corresponding to a temperature of the battery and measuring the temperature of the battery based on the temperature signal in a first cycle, and
- providing (502) a controlled voltage to increase the temperature of the battery by a heating operation based on the measured temperature of the battery in a following second cycle.
Dependencies are inferred from the claim text.