Abstract: A structurally robust power switching assembly, that has a power transistor, comprising a thin and delicate layer of metal oxide, and a major surface of the layer of metal oxide being substantially coincident with a major surface of the power transistor, the major surface of the power transistor defining both an emitter and a gate. Also, dielectric material is placed over a portion of the emitter, so that it abuts the gate and a highly conductive pillar is constructed out of a relatively soft material, supported by the gate and the dielectric material, so that it has a larger area than would be possible if it was supported only by the gate.

Abstract: An improved linear motor which compensates for manufacturing or assembly errors in the positioning of the magnetic field detectors. The linear motor synthesizes a correction signal which can be simply combined (for example added) to the output of one of the magnetic field detectors so as to ensure that the magnetic field detector outputs have the correct phase relationship. This in turn ensures that accurate positioning of the rotor relative to the stator can be achieved. In a preferred embodiment, a deliberate error is introduced into the positioning of the magnetic field detectors and this error, plus any error due to manufacturing or assembly tolerances, is corrected using the correction signal. This allows a simplified correction circuit which only corrects for phase offset errors in one direction to be used.

Abstract: A multilayer polymer film capacitor block, adapted to accept high currents. At least one multilayer polymer film capacitor is fit into a cavity defined in a rigid, thermally conductive structure. The cavity is sized and shaped to receive said multilayer polymer film capacitor when said capacitor is at a temperature below 40° C., but fitting said capacitor in a conformal manner so that as said capacitor is raised to temperatures above 40° C., said cavity constrains expansion of said capacitor.

Abstract: An electrical assembly, comprising a heat producing semiconductor device supported on a first major surface of a direct bond metal substrate that has a set of heat sink protrusions supported by its second major surface. In one preferred embodiment the heat sink protrusions are made of the same metal as is used in the direct bond copper.

Abstract: An improved linear motor which compensates for manufacturing or assembly errors in the positioning of the magnetic field detectors. The linear motor synthesises a correction signal which can be simply combined (for example added) to the output of one of the magnetic field detectors so as to ensure that the magnetic field detector outputs have the correct phase relationship. This in turn ensures that accurate positioning of the rotor relative to the stator can be achieved. In a preferred embodiment, a deliberate error is introduced into the positioning of the magnetic field detectors and this error, plus any error due to manufacturing or assembly tolerances, is corrected using the correction signal. This allows a simplified correction circuit which only corrects for phase offset errors in one direction to be used.

Abstract: A method of assembling and providing an electric power apparatus. The method uses a heat resistant housing having a structure adapted to accommodate and retain a power circuit card and also including a bracket adapted to accommodate and constrain a rigid conductive member. A power circuit card having an electrical terminal is placed into the housing and a rigid conductive member into the bracket. The rigid conductive member is flow soldered to the electrical terminal, thereby exposing the heat resistant housing to heat and creating a solder bond. Finally, the rigid conductive member is affirmatively connected to the housing. The bracket constrains the rigid conductive member so that the act of affirmatively connecting does not weaken the solder bond.

Abstract: A heat producing, fluid cooled assembly that includes a housing made of liquid-impermeable material, which defines a fluid inlet and a fluid outlet and an opening. Also included is an electrical package having a set of semiconductor electrical devices supported on a substrate and the second major surface is a heat sink adapted to express heat generated from the electrical apparatus and wherein the second major surface defines a rim that is fit to the opening. Further, the housing is constructed so that as fluid travels from the fluid inlet to the fluid outlet it is constrained to flow past the opening thereby placing the fluid in contact with the heat sink.

Abstract: A tote bag apparatus for securing a telecommunication device within a passenger vehicle between a pair of seats. The tote bag apparatus includes an inner bag having a generally rectangular shape, a partial rear panel, a front opening for receiving a telecommunication device, a top panel has one or more adjustable closure flaps for opening and closing the top panel for adjusting the size of the interior space of the inner bag; and an outer tote bag having a generally rectangular space, an outer rear panel and an outer top panel have an outer flap and a first outer flap opening for receiving the inner bag and telecommunication device within the outer bag interior space of the outer tote bag, an outer front panel has a front outer flap and a second outer flap opening for accessing the telecommunication device therein.

Abstract: A PDA holding unit and holding case therefor, for securing and holding in place a personal digital assistant (PDA) device. The PDA holding unit includes a base member having an upper surface for receiving and holding a PDA device and a lower surface. The upper surface having a plurality of gripping elements thereon for frictionally engaging the PDA device. The PDA holding unit also includes a first gripping arm movably attached to a first side of the base member for engaging and holding the PDA device in place on the base member; and a second gripping arm attached to a second side of the base member for engaging and holding the PDA device in place on the base member. The PDA holding unit further includes third and fourth gripping arms attached to one end of the base member for engaging and holding the PDA device in place on the base member.

Abstract: The present invention relates to an apparatus for mobilizing the metatarsophalangeal (MTP) joint in a toe, especially after prolonged immobilization. It includes a member having a first curved surface for facilitating the rolling of the member and a second surface for receiving the plantar portion of a human foot, including a portion of the ball of the foot and at least one toe. The apparatus further includes a retainer for securing a single toe to the member. In use, a patient places a foot on the second surface of the member with the ball of the foot and at least a to-be-treated toe contacting the second curved surface. Then, using the retainer, the single to-be-treated and mobilized toe is secured to the member. Thereafter, the patient may impose either plantarflexion or dorsiflexion motion to the single to-be-treated toe by rolling the member either forward or backward.