公开(公告)号：US11837848B2

公开(公告)日：2023-12-05

申请号：US17037676

申请日：2020-09-30

申请人： Ian D Crawford ,  Jeff Richter

发明人： Ian D Crawford ,  Jeff Richter

IPC分类号： H01S5/042 ,  H05B45/385 ,  H02M1/32 ,  H02J7/34

CPC分类号： H01S5/0428 ,  H02J7/345 ,  H02M1/32 ,  H05B45/385 ,  H02J2207/50 ,  H02M1/322

摘要： A fly-back or boost stage transfers its stored energy to the energy storage capacitor of the fast driver discharge stage in a single event pulse. The charging voltage of a single flyback pulse on the capacitor is measured in real time and, if necessary, the charging current is diverted via a shunt active device or transistor, to ground, thus preventing the storage capacitor from overcharging with the risk of component damage. A series sense resistor is used to determine the presence and amount of the wasted shunt current in order that this current may be minimized by turning down the flyback energy, thus maximizing the overall efficiency.

公开(公告)号：US20210098965A1

公开(公告)日：2021-04-01

申请号：US17037676

申请日：2020-09-30

申请人： Ian D. Crawford ,  Jeff Richter

发明人： Ian D. Crawford ,  Jeff Richter

IPC分类号： H01S5/042 ,  H05B45/385 ,  H02J7/34 ,  H02M1/32

摘要： A fly-back or boost stage transfers its stored energy to the energy storage capacitor of the fast driver discharge stage in a single event pulse. The charging voltage of a single flyback pulse on the capacitor is measured in real time and, if necessary, the charging current is diverted via a shunt active device or transistor, to ground, thus preventing the storage capacitor from overcharging with the risk of component damage. A series sense resistor is used to determine the presence and amount of the wasted shunt current in order that this current may be minimized by turning down the flyback energy, thus maximizing the overall efficiency.

公开(公告)号：US07219906B2

公开(公告)日：2007-05-22

申请号：US10887351

申请日：2004-07-09

申请人： Bjarki Hallgrimsson ,  Jeff Richter

发明人： Bjarki Hallgrimsson ,  Jeff Richter

IPC分类号： B62M1/00

CPC分类号： B60T1/04 ,  A61G5/08 ,  A61G5/0833 ,  A61G5/0883 ,  A61G5/0891 ,  A61G5/1091 ,  A61G5/125 ,  A61H3/04 ,  A61H2003/046 ,  A61H2201/1633 ,  F16D2121/14

摘要： The present invention relates to a cordless braking system for a mobility-aiding device, such as a wheeled walker (a rollator) or a transport chair. The cordless braking system includes a brake actuating linkage, disposed inside the leg and handlebar members of the mobility-aiding device, which extends during height adjustment of the handlebars. The brake-actuating linkage and the leg/handlebar of the mobility-aiding device are designed to enable a locking pin or bolt to extend all the way therethrough to ensure that all of the height-adjustable members are secured together during use.

摘要翻译： 本发明涉及一种用于移动辅助装置的无绳制动系统，例如轮式助行器（卷扬机）或运输椅。 无绳制动系统包括制动器致动联动装置，其布置在移动辅助装置的腿部和车把构件的内部，其在车把的高度调节期间延伸。 移动辅助装置的制动致动联动装置和腿/把手被设计成使得锁定销或螺栓能够一直延伸穿过其中，以确保在使用期间所有的高度可调节构件被固定在一起。