Emergency lamp tube and bulb
First Claim
1. An emergency lamp comprising:
- a. a first line contact configured for connection to a first line;
b. a second line contact configured for connection to a second line, wherein the second line is not switched;
c. a neutral line contact configured for connection to a neutral line;
d. a voltage checker, wherein the voltage checker changes a mode of a main driver enablement signal and an emergency driver enablement signal when the voltage checker does not sense voltage, wherein the voltage checker is electrically connected to the second line;
e. a main driver powered by the first line and the neutral line, wherein the main driver is controlled by the main driver enablement signal;
f. an emergency driver powered by a battery, wherein the battery is maintained by a charge controller, wherein the charge controller is powered by the second line and the neutral line, wherein the emergency driver is controlled by an emergency driver enablement signal; and
g. a lamp, wherein the lamp is powered by the main driver during a state of normal operation, and wherein the lamp is powered by the emergency driver during a state of emergency operation, wherein the lamp further includes a lamp housing retaining a circuit board, wherein the circuit board retains LED chips mounted to the circuit board, wherein the lamp housing is tubular, wherein a change of state of the main driver enablement signal and the emergency driver enablement signal activates the emergency driver.
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Accused Products
Abstract
An emergency lamp has a first line contact configured for connection to a first line. A second line contact is configured for connection to a second line. The second line is not switched. A neutral line contact is configured for connection to a neutral line. The voltage checker changes a mode of a main driver enablement signal and an emergency driver enablement signal when the voltage checker does not sense voltage. The voltage checker is electrically connected to the second line. A main driver is powered by the first line and the neutral line. The main driver is controlled by the main driver enablement signal. An emergency driver is powered by a battery. The battery is maintained by a charge controller. The charge controller is powered by the second line and the neutral line. The emergency driver is controlled by an emergency driver enablement signal.
11 Citations
6 Claims
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1. An emergency lamp comprising:
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a. a first line contact configured for connection to a first line; b. a second line contact configured for connection to a second line, wherein the second line is not switched; c. a neutral line contact configured for connection to a neutral line; d. a voltage checker, wherein the voltage checker changes a mode of a main driver enablement signal and an emergency driver enablement signal when the voltage checker does not sense voltage, wherein the voltage checker is electrically connected to the second line; e. a main driver powered by the first line and the neutral line, wherein the main driver is controlled by the main driver enablement signal; f. an emergency driver powered by a battery, wherein the battery is maintained by a charge controller, wherein the charge controller is powered by the second line and the neutral line, wherein the emergency driver is controlled by an emergency driver enablement signal; and g. a lamp, wherein the lamp is powered by the main driver during a state of normal operation, and wherein the lamp is powered by the emergency driver during a state of emergency operation, wherein the lamp further includes a lamp housing retaining a circuit board, wherein the circuit board retains LED chips mounted to the circuit board, wherein the lamp housing is tubular, wherein a change of state of the main driver enablement signal and the emergency driver enablement signal activates the emergency driver. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification