公开(公告)号：US11881197B2

公开(公告)日：2024-01-23

申请号：US17978303

申请日：2022-11-01

Applicant: Fred Palmer

Inventor： Fred Palmer

IPC: G10H1/00 ,  G10H1/34

CPC classification number: G10H1/348 ,  G10H2220/265

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.

公开(公告)号：US10186981B2

公开(公告)日：2019-01-22

申请号：US15092688

申请日：2016-04-07

Applicant: Fred Palmer

Inventor： Fred Palmer

IPC: H02M7/219 ,  H02M7/06 ,  H02M1/42 ,  H02M7/217 ,  H02M3/158 ,  H05B33/08

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.

公开(公告)号：US09265114B2

公开(公告)日：2016-02-16

申请号：US13471650

申请日：2012-05-15

Applicant: Fred Palmer ,  Kerry Denvir ,  Steven Allen

Inventor： Fred Palmer ,  Kerry Denvir ,  Steven Allen

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0854 ,  H05B33/0857 ,  H05B33/0866 ,  H05B33/089

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 translation: 提供一种用于包括一个或多个固态光源的光源的驱动器电路，包括该固态光源的照明器以及驱动固态光源的方法。 驱动器电路包括一个整流电路，其接收交流（AC）输入电压并提供整流的交流电压。 驱动器电路还包括耦合到光源的开关转换器电路。 开关转换器电路响应于整流的AC电压向光源提供直流（DC）输出。 驱动器电路还包括耦合到光源的混合电路，以响应于整流的AC电压的多个连续半波中的每一个来切换电流通过光源的至少一个固态光源。

公开(公告)号：US20230047082A1

公开(公告)日：2023-02-16

申请号：US17978303

申请日：2022-11-01

Applicant: Fred Palmer

Inventor： Fred Palmer

IPC: G10H1/34

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.

公开(公告)号：US10755680B2

公开(公告)日：2020-08-25

申请号：US16270428

申请日：2019-02-07

Applicant: Fred Palmer

Inventor： Fred Palmer

IPC: G10C3/26 ,  G05G1/487

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.

公开(公告)号：US20160226395A1

公开(公告)日：2016-08-04

申请号：US15092688

申请日：2016-04-07

Applicant: Fred Palmer

Inventor： Fred Palmer

IPC: H02M7/06 ,  H05B33/08

CPC classification number: H02M7/06 ,  H02M1/42 ,  H02M1/4208 ,  H02M3/1582 ,  H02M7/2176 ,  H02M2001/4275 ,  H05B33/0815 ,  H05B33/0848 ,  H05B33/0896 ,  Y02B20/347

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 translation: 提供了在降压转换器或升压转换器配置中操作的固态光源驱动器电路。 驱动器电路包括耦合到控制器的控制器，升压开关电路和降压开关电路，以及耦合到光源的反馈电路。 反馈电路向控制器提供表示驱动器电路的直流输出的反馈。 控制器根据反馈信号控制升压开关电路和降压开关电路，调节到光源的电流。 当DC输出小于在输入节点处耦合到驱动器电路的整流AC电压时，控制器将驱动器电路放置在升压转换器配置中。 当直流输出大于输入节点处的整流交流电压时，控制器将驱动电路置于降压转换器配置中。

公开(公告)号：US20060022567A1

公开(公告)日：2006-02-02

申请号：US10900727

申请日：2004-07-28

Applicant: Fred Palmer ,  Jakob Maya

Inventor： Fred Palmer ,  Jakob Maya

IPC: H01J1/50 ,  H01J23/10

CPC classification number: H01J65/048 ,  H01J61/20

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.

Abstract translation: 无电极荧光灯被配置为使得灯在频率小于500kHz的情况下在具有很小性能变化的灯具中进出。 该灯采用相当高的稀有气体压力，相对较小的凹陷腔直径和较短的磁芯，以在夹具中实现良好的性能。

公开(公告)号：US20230236619A1

公开(公告)日：2023-07-27

申请号：US18106678

申请日：2023-02-07

Applicant: Fred Palmer

Inventor： Fred Palmer

IPC: G05G1/483 ,  G10C3/26

CPC classification number: G05G1/483 ,  G10C3/26

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.

公开(公告)号：US20190259357A1

公开(公告)日：2019-08-22

申请号：US16270428

申请日：2019-02-07

Applicant: Fred Palmer

Inventor： Fred Palmer

IPC: G10C3/26 ,  G05G1/487

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.

公开(公告)号：US20130307422A1

公开(公告)日：2013-11-21

申请号：US13471650

申请日：2012-05-15

Applicant: Fred Palmer ,  Kerry Denvir ,  Steven Allen

Inventor： Fred Palmer ,  Kerry Denvir ,  Steven Allen

IPC: H05B37/02

CPC classification number: H05B33/0854 ,  H05B33/0857 ,  H05B33/0866 ,  H05B33/089

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 translation: 提供一种用于包括一个或多个固态光源的光源的驱动器电路，包括该固态光源的照明器以及驱动固态光源的方法。 驱动器电路包括一个整流电路，其接收交流（AC）输入电压并提供整流的交流电压。 驱动器电路还包括耦合到光源的开关转换器电路。 开关转换器电路响应于整流的AC电压向光源提供直流（DC）输出。 驱动器电路还包括耦合到光源的混合电路，以响应于整流的AC电压的多个连续半波中的每一个来切换电流通过光源的至少一个固态光源。