Abstract: The foldable keyboard sustain pedal stabilizer is designed for use with either one keyboard sustain foot pedal or two keyboard sustain foot pedals. The foldable keyboard sustain pedal stabilizer comprises a stabilizer base, a pedal-retention area in cooperative engagement with the stabilizer base, a foldable section sandwiched between the stabilizer base and the pedal-retention area, and an underside having a non-slip surface. The foldable section is made of a flexible material such that the pedal-retention area folds onto the stabilizer base for packaging and transporting in a compact manner. The foldable keyboard sustain pedal stabilizer provides stable footing for the musician on damp floors for one foot or both feet while providing a foldable keyboard sustain pedal stabilizer that stabilizes either one or two keyboard sustain foot pedals. The foldable keyboard sustain pedal stabilizer has no moving parts and is compatible with essentially any keyboard sustain foot pedal.

Abstract: The dual keyboard sustain pedal stabilizer is designed for use with a pair of keyboard sustain foot pedals. The dual keyboard sustain pedal stabilizer comprises a stabilizer base, a first pedal-retention area in cooperative engagement with the stabilizer base, a second pedal-retention area in cooperative engagement with the stabilizer base, and an underside of the stabilizer base having a non-slip surface. The first and second pedal-retention areas each include retaining structures proximate to the stabilizer base. The retaining structures enable secure retention of the keyboard sustain foot pedals within the pedal retention area. The dual keyboard sustain pedal stabilizer provides stable footing for the musician on damp floors for both feet while providing a dual keyboard sustain pedal stabilizer that stabilizes either one or two keyboard sustain foot pedals. The dual keyboard sustain pedal stabilizer has no moving parts and is compatible with essentially any keyboard sustain foot pedal.

Abstract: The foldable keyboard sustain pedal stabilizer is designed for use with either one keyboard sustain foot pedal or two keyboard sustain foot pedals. The foldable keyboard sustain pedal stabilizer comprises a stabilizer base, a pedal-retention area in cooperative engagement with the stabilizer base, a foldable section sandwiched between the stabilizer base and the pedal-retention area, and an underside having a non-slip surface. The foldable section is made of a flexible material such that the pedal-retention area folds onto the stabilizer base for packaging and transporting in a compact manner. The foldable keyboard sustain pedal stabilizer provides stable footing for the musician on damp floors for one foot or both feet while providing a foldable keyboard sustain pedal stabilizer that stabilizes either one or two keyboard sustain foot pedals. The foldable keyboard sustain pedal stabilizer has no moving parts and is compatible with essentially any keyboard sustain foot pedal.

Abstract: The dual keyboard sustain pedal stabilizer is designed for use with a pair of keyboard sustain foot pedals. The dual keyboard sustain pedal stabilizer comprises a stabilizer base, a first pedal-retention area in cooperative engagement with the stabilizer base, a second pedal-retention area in cooperative engagement with the stabilizer base, and an underside of the stabilizer base having a non-slip surface. The first and second pedal-retention areas each include retaining structures proximate to the stabilizer base. The retaining structures enable secure retention of the keyboard sustain foot pedals within the pedal retention area. The dual keyboard sustain pedal stabilizer provides stable footing for the musician on damp floors for both feet while providing a dual keyboard sustain pedal stabilizer that stabilizes either one or two keyboard sustain foot pedals. The dual keyboard sustain pedal stabilizer has no moving parts and is compatible with essentially any keyboard sustain foot pedal.

Abstract: A keyboard sustain pedal stabilizer is for use with a keyboard sustain foot pedal. The keyboard sustain pedal stabilizer comprises a stabilizer base, and a pedal-retention area in cooperative engagement with the stabilizer base. The pedal-retention area includes a retaining structure, the retaining structure enabling secure retention of the keyboard sustain foot pedal within the pedal-retention area. The retention structure may be an end-wall in combination with a pair of opposing sidewalls, a recess in combination with a pair of opposing sidewalls, or a recess in combination with an end-wall. The keyboard sustain pedal stabilizer may also include an expanded position and a retracted position, the expanded position being for cooperative engagement with the keyboard sustain pedal, the retracted position being for transporting the keyboard sustain pedal stabilizer. The under surface of the stabilizer has non-slipping properties.

Abstract: A keyboard sustain pedal stabilizer is for use with a keyboard sustain foot pedal. The keyboard sustain pedal stabilizer comprises a stabilizer base, and a pedal-retention area in cooperative engagement with the stabilizer base. The pedal-retention area includes a retaining structure, the retaining structure enabling secure retention of the keyboard sustain foot pedal within the pedal-retention area. The retention structure may be an end-wall in combination with a pair of opposing sidewalls, a recess in combination with a pair of opposing sidewalls, or a recess in combination with an end-wall. The keyboard sustain pedal stabilizer may also include an expanded position and a retracted position, the expanded position being for cooperative engagement with the keyboard sustain pedal, the retracted position being for transporting the keyboard sustain pedal stabilizer. The under surface of the stabilizer has non-slipping properties.

Abstract: The keyboard sustain pedal stabilizer is for use with a keyboard sustain foot pedal. The stabilizer comprises a stabilizer base, a pedal-retention area for retaining the keyboard sustain foot pedal, a pair of sidewalls and an end-wall. The stabilizer base, the pair of sidewalls, the end-wall, and the pedal-retention area are made of one-piece of material. The keyboard sustain pedal stabilizer may be made of one-piece of material, the one-piece of material being a natural rubber, a synthetic rubber, or a blend of one or natural rubbers and one or more synthetic rubbers. The keyboard sustain pedal stabilizer has no moving parts. The top surface of the keyboard sustain pedal stabilizer has non-slipping properties and the underside of the device has non-skid properties. An opening for positioning a foot pedal cord is disposed in either an end-wall, a sidewall, or between the end-wall and a sidewall.

Abstract: The keyboard sustain pedal stabilizer is for use with a keyboard sustain foot pedal. The stabilizer comprises a stabilizer base, a pedal-retention area for retaining the keyboard sustain foot pedal, a pair of sidewalls and an end-wall. The stabilizer base, the pair of sidewalls, the end-wall, and the pedal-retention area are made of one-piece of material. The keyboard sustain pedal stabilizer may be made of one-piece of material, the one-piece of material being a natural rubber, a synthetic rubber, or a blend of one or natural rubbers and one or more synthetic rubbers. The keyboard sustain pedal stabilizer has no moving parts. The top surface of the keyboard sustain pedal stabilizer has non-slipping properties and the underside of the device has non-skid properties. An opening for positioning a foot pedal cord is disposed in either an end-wall, a sidewall, or between the end-wall and a sidewall.

Abstract: A solid state light source driver circuit that operates in either a buck convertor or a boost convertor configuration is provided. The driver circuit includes a controller, a boost switch circuit and a buck switch circuit, each coupled to the controller, and a feedback circuit, coupled to the light source. The feedback circuit provides feedback to the controller, representing a DC output of the driver circuit. The controller controls the boost switch circuit and the buck switch circuit in response to the feedback signal, to regulate current to the light source. The controller places the driver circuit in its boost converter configuration when the DC output is less than a rectified AC voltage coupled to the driver circuit at an input node. The controller places the driver circuit in its buck converter configuration when the DC output is greater than the rectified AC voltage at the input node.

Abstract: A solid state light source driver circuit that operates in either a buck convertor or a boost convertor configuration is provided. The driver circuit includes a controller, a boost switch circuit and a buck switch circuit, each coupled to the controller, and a feedback circuit, coupled to the light source. The feedback circuit provides feedback to the controller, representing a DC output of the driver circuit. The controller controls the boost switch circuit and the buck switch circuit in response to the feedback signal, to regulate current to the light source. The controller places the driver circuit in its boost converter configuration when the DC output is less than a rectified AC voltage coupled to the driver circuit at an input node. The controller places the driver circuit in its buck converter configuration when the DC output is greater than the rectified AC voltage at the input node.

Abstract: A solid state light source driver circuit that operates in either a buck convertor or a boost convertor configuration is provided. The driver circuit includes a controller, a boost switch circuit and a buck switch circuit, each coupled to the controller, and a feedback circuit, coupled to the light source. The feedback circuit provides feedback to the controller, representing a DC output of the driver circuit. The controller controls the boost switch circuit and the buck switch circuit in response to the feedback signal, to regulate current to the light source. The controller places the driver circuit in its boost converter configuration when the DC output is less than a rectified AC voltage coupled to the driver circuit at an input node. The controller places the driver circuit in its buck converter configuration when the DC output is greater than the rectified AC voltage at the input node.

Abstract: A solid state light source driver circuit that operates in either a buck convertor or a boost convertor configuration is provided. The driver circuit includes a controller, a boost switch circuit and a buck switch circuit, each coupled to the controller, and a feedback circuit, coupled to the light source. The feedback circuit provides feedback to the controller, representing a DC output of the driver circuit. The controller controls the boost switch circuit and the buck switch circuit in response to the feedback signal, to regulate current to the light source. The controller places the driver circuit in its boost converter configuration when the DC output is less than a rectified AC voltage coupled to the driver circuit at an input node. The controller places the driver circuit in its buck converter configuration when the DC output is greater than the rectified AC voltage at the input node.

Abstract: A driver circuit for a light source including one or more solid state light sources, a luminaire including the same, and a method of so driving the solid state light sources are provided. The driver circuit includes a rectifier circuit that receives an alternating current (AC) input voltage and provides a rectified AC voltage. The driver circuit also includes a switching converter circuit coupled to the light source. The switching converter circuit provides a direct current (DC) output to the light source in response to the rectified AC voltage. The driver circuit also includes a mixing circuit, coupled to the light source, to switch current through at least one solid state light source of the light source in response to each of a plurality of consecutive half-waves of the rectified AC voltage.

Abstract: A solid state light source driver circuit that operates in either a buck convertor or a boost convertor configuration is provided. The driver circuit includes a controller, a boost switch circuit and a buck switch circuit, each coupled to the controller, and a feedback circuit, coupled to the light source. The feedback circuit provides feedback to the controller, representing a DC output of the driver circuit. The controller controls the boost switch circuit and the buck switch circuit in response to the feedback signal, to regulate current to the light source. The controller places the driver circuit in its boost converter configuration when the DC output is less than a rectified AC voltage coupled to the driver circuit at an input node. The controller places the driver circuit in its buck converter configuration when the DC output is greater than the rectified AC voltage at the input node.

Abstract: A driver circuit for a light source including one or more solid state light sources, a luminaire including the same, and a method of so driving the solid state light sources are provided. The driver circuit includes a rectifier circuit that receives an alternating current (AC) input voltage and provides a rectified AC voltage. The driver circuit also includes a switching converter circuit coupled to the light source. The switching converter circuit provides a direct current (DC) output to the light source in response to the rectified AC voltage. The driver circuit also includes a mixing circuit, coupled to the light source, to switch current through at least one solid state light source of the light source in response to each of a plurality of consecutive half-waves of the rectified AC voltage.

Abstract: An electrodeless fluorescent lamp is provided with an improved profile. The lamp generally includes: a glass envelope filled with an inert gas and a metal vapor; a coating of phosphor disposed on an inner surface of envelope; and a means for exciting the gas within the glass envelope. To achieve a slimmer profile, the tubes defining the glass envelope have an oval cross-sectional shape.

Abstract: An electrodeless fluorescent lamp is configured such that the lamp operates at frequencies less than 500 kHz both in and out of a fixture with little change in performance. The lamp employs relatively high rare gas pressure, relatively small reentrant cavity diameter and a relatively short magnetic core to achieve good performance in the fixture.