Abstract: A Light Emitting Diode (LED) Luminaire retrofit kit used with Exit Signs. This kit has an integral Driver On-Board (DOB) . The integrated Circuit Chip (IC Chip) on Printed circuit Board (PCB) eliminates the need for a separate LED Driver to drive the LEDs is on Board. The PCB includes a metal oxide varistor (MOV), and an array of Light Emitting Diodes (LEDs) arranged in an optimized configuration. An integral plastic Diffuser provides a uniform Light to the exit sign. All the components are laid out in a single low profile PC Board. The system provides maximum power output consuming very low input power. The system can operate at 120 or 277 Volts 60 Hz. The specially designed diffuser is positioned over LEDs for uniform illumination over desired area eliminating the Dot Matrix Pattern produced by LEDs. The luminaire can be made to varying lengths.

Abstract: An energy efficient under-cabinet lighting system with a low profile switch mode power supply complying with Class 2 requirements. This power source is enclosed in a container to provide constant current to an array of light emitting diodes LEDs that are characterized by long life and low power usage. The system is designed to replace existing under-cabinet fluorescent lamp fixtures. A diffuser minimizes pixelization. The unit is also equipped with a safe-charge USB port that can safely charge lithium-ion batteries of accessories like tablets and cellphones with no danger of overheating their batteries.

Abstract: A ballast system for use with a fluorescent lamp having two filaments disposed at opposite ends of the lamp. The ballast system has a DC input terminal for connection to a DC voltage source or for receiving a rectified DC signal. The ballast system also includes a capacitor operably connected between the DC input terminal and the lamp and an inductor, wherein the lamp operably connects the capacitor in series with the inductor. The ballast system further includes a first power transistor operably connected to a junction joining the DC input terminal to the capacitor and a second power transistor operably connected to drive the first power transistor. The emitter of the first power transistor and the collector of the second power transistor are operably connected to the inductor such that the two power transistors sense a change in voltage across the inductor and control current from the DC voltage source to the capacitor in response to a change in voltage across the inductor.

Abstract: A plug-in transformer power supply having magnetic and electronic circuits is optimized for output power while complying with UL Class 2 limits. In an embodiment, a 12 VDC unit capable of 21 W of output power is disclosed. In another embodiment, a 24 VDC unit capable of 33.6 W of output power is disclosed.

Abstract: A ballast enclosure made of metal and including a rectangular enclosure body having mounting bosses integrally formed in the side walls thereof. Preferably, the bosses are formed by stamping the bosses into the sidewalls and are so constructed and arranged that they can receive self-tapping screws to attach the enclosure to an adjoining wall. Mounting flanges are also provided.

Abstract: A ballast circuit for a fluorescent lamp includes a magnetic choke coupled between the lamp and a power supply and an electronic starter circuit coupled across said lamp. The magnetic choke includes an inductor and a capacitor to limit the supply of current to the lamp. The capacitor provides power factor correction and limits current supply without dissipating power in the form of heat. The electronic starter circuit includes a triac coupled across the lamp that is triggered by a diac coupled to the power supply input through a capacitor. When a sufficient charge builds up on the capacitor, the diac is triggered and, in turn, the triac is triggered to provide current through the electrodes of the lamp to thereby preheat the electrodes. Almost as instantly as the triac is triggered, the diac is caused to stop triggering the triac and therefore, the triac becomes non-conducting and is removed from the cirucit.

Abstract: An enclosure for and/or enclosure containing a ballast circuit is substantially rectangular in shape and is subdivided into sections arranged in the following order: a first transformer section; a thermal protector section; a second transfer section; and a printed circuit board section, the thermal protector section comprising a pair of upstanding U-shaped channel members designed to securely receive thermal protectors and which serve as a barrier between the first and second transformer sections. The printed circuit board section and second transformer section are separated by means of an upstanding wedge-shaped rib employed to secure a printed circuit board in the circuit board sections.