GAS DISCHARGE LAMP POWER SUPPLY
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Accused Products
Abstract
A gas discharge lamp power supply having a base, a pair of opposed side walls extending from the base, and opposed first and second end walls extending from the base between the opposed side walls. The first end wall has a sloped wall extending angularly between the side walls, and two input terminals are mounted on the sloped wall. In another embodiment, the power supply has a control with a nonvolatile memory for storing an error code in response to a detected fault condition, thereby permitting the error code to be displayed upon power being removed from and then, subsequently reapplied.
4 Citations
50 Claims
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1-41. -41. (canceled)
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42. A gas discharge lamp power supply comprising:
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a transformer having a primary winding and a secondary winding;
input terminals connectable to the primary winding and adapted to be connected to a source of electrical power;
output terminals connected to the secondary winding and adapted to be connected to a gas discharge lamp;
a fault detection circuit providing an error signal in response to detecting a fault condition;
a control comprising a nonvolatile memory, the control storing an error code in the nonvolatile memory in response to the error signal, and an error indicator connected to the control and being activated by the control in response to the error signal. - View Dependent Claims (43, 44, 45)
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46. A method for diagnosing a presence of a fault condition in a gas discharge lamp power supply, the power supply having
a transformer having a primary winding and a secondary winding, input terminals connectable to a source of electrical power, output terminals connected to the secondary winding and connectable to the gas discharge lamp, a fault detection circuit connected to the secondary winding, a control connected between an input terminal and the primary winding, and an error indicator connected to the control, the method comprising: -
connecting a source of electrical power to the input terminals of the power supply and the primary winding of the transformer;
monitoring an operation of the power supply with the fault detection circuit;
generating an error signal with the fault detection circuit in response to detecting a fault condition in the power supply;
storing an error code in a nonvolatile memory in the control in response to the error signal; and
activating the error indicator in response to the error code. - View Dependent Claims (47, 48)
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49. A power supply for use with a gas discharge lamp comprising:
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a housing comprising a base, and opposed first and second end walls extending from the base, a first end wall comprising a sloped wall extending obliquely with respect to the base;
a transformer located within the housing and comprising a primary winding and a secondary winding;
input terminals mounted on the sloped wall and connectable to the primary winding;
output terminals mounted on the housing, connected to the secondary winding and adapted to be connected to a gas discharge lamp;
a fault detection circuit located within the housing and providing an error signal in response to detecting a fault condition;
a control located within the housing and comprising a nonvolatile memory, the control storing an error code in the nonvolatile memory in response to the error signal; and
an error indicator connected to the control and being activated by the control in response to the error signal. - View Dependent Claims (50)
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Specification