Abstract: This application discloses an interaction method performed by a display device and the display device. A three-dimensional virtual object may be obtained; an optical signal of the virtual object is transmitted to a first region of a space and then projected from the first region into a second region of the space through the display device, so that an image of the virtual object is generated in the second region of the space that is outside the display device; when it is detected that a user performs a motion sensing operation on the image of the virtual object in the second region of the space, the virtual object is updated based on the motion sensing operation, to obtain an updated virtual object; and an optical signal of the updated virtual object is then used for generating an image of the updated virtual object in the second region of the space.

Abstract: The present invention provides a high efficiency, high density GaN-based power converter comprising: a transformer; a magnetic coupler; a primary switch; a secondary switch; a primary controller; a secondary controller; a multi-layered print circuit board (PCB) comprising: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the transformer, the coupler, a primary switch, a secondary switch, a primary controller and a secondary controller. The power converter further comprises a pair of ferrite cores being fixed to a top surface and a bottom surface of the PCB respectively and commonly shared by the transformer and the coupler.

Abstract: The present invention provides a high efficiency, high density GaN-based power converter comprising: a transformer; a magnetic coupler; a primary switch; a secondary switch; a primary controller; a secondary controller; a multi-layered print circuit board (PCB) comprising: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the transformer, the coupler, a primary switch, a secondary switch, a primary controller and a secondary controller. The power converter further comprises a pair of ferrite cores being fixed to a top surface and a bottom surface of the PCB respectively and commonly shared by the transformer and the coupler.

Abstract: The present invention provides a multi-functional printed circuit board (PCB) for assembling a plurality of components of a power converter in to a single package. The PCB comprises: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the plurality of components of the power converter.

Abstract: The present invention provides a multi-functional printed circuit board (PCB) for assembling a plurality of components of a power converter in to a single package. The PCB comprises: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the plurality of components of the power converter.

Abstract: The present invention provides a high efficiency, high density GaN-based power converter comprising: a transformer; a magnetic coupler; a primary switch; a secondary switch; a primary controller; a secondary controller; a multi-layered print circuit board (PCB) comprising: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the transformer, the coupler, a primary switch, a secondary switch, a primary controller and a secondary controller. The power converter further comprises a pair of ferrite cores being fixed to a top surface and a bottom surface of the PCB respectively and commonly shared by the transformer and the coupler.

Abstract: An internal meshing planetary gear apparatus and a robotic joint device. The internal meshing planetary gear apparatus includes an internally toothed gear, a planetary gear, a plurality of inner pins, an eccentric shaft which acts as an input shaft, and a bushing. The plurality of inner pins is respectively inserted into a plurality of inner pin holes formed in the planetary gear, and is configured to revolve in the inner pin holes while rotating relative to the internally toothed gear about a rotation axis. The eccentric shaft is configured to cause the planetary gear to oscillate eccentrically. The bushing includes a fixing structure configured to fix an object member, and the bushing is combined with the eccentric shaft and configured to rotate together with the eccentric shaft.

Abstract: The electronic circuits and semiconductor device having the same are provided. The electronic circuit includes: a first transistor including a first electrode coupled with an input voltage; a second transistor including a first electrode coupled with a second electrode of the first transistor; a first capacitor coupled between the first transistor and the second transistor; a first diode including a first terminal coupled with the first electrode of the first transistor; a second diode including a first terminal coupled with a second terminal of the first diode and a second terminal coupled with a second electrode of the second transistor; a second capacitor coupled between the first transistor and the first diode; and a third capacitor coupled between the first diode and the second transistor.

Abstract: An internally meshing planetary gear apparatus includes a bearing component, an internal gear, a planetary gear a plurality of inner pins, and a support structure. The plurality of inner pins are configured to be respectively inserted into a plurality of inner pin holes formed by the planetary gear. The inner pins are configured to revolve within the inner pin holes, and simultaneously rotate relative to the internal gear). When the plurality of inner pins are not rotating relative to the internal gear, a respective inner circumferential face of each pin hole among the plurality of inner pin holes presses against each pin among the plurality of inner pins, and the pin holes exert a pre-pressure on each pin among the plurality of inner pins. The support structure is configured to support each pin among the plurality of inner pins.

Abstract: An internally engaged planetary gear device includes a bearing member, an internally toothed gear, a planetary gear, a plurality of inner pins, and a plurality of rolling bearings. When respectively inserted into a plurality of inner pin holes formed in the planetary gear, the plurality of inner pins are configured to rotate relative to the internally toothed gear while revolving in the inner pin holes. The plurality of rolling bearings are configured to hold respective inner pins of the plurality of inner pins at two sides in a direction parallel to a rotation axis Ax1 with respect to the planetary gear. Each inner pin of the plurality of inner pins is configured to be held on each rolling bearing in a state capable of rotation.

Abstract: The harmonic gear device includes a rigid internal gear, a flexible external gear and a wave generator. The rigid internal gear is an annular component having internal teeth. The flexible external gear is an annular component having external teeth and configured on an inner side of the rigid internal gear. The wave generator is configured on an inner side of the flexible external gear and flexes the flexible external gear. The harmonic gear device is configured to deform the flexible external gear along with the rotation of the wave generator with the rotation shaft as a center, so that some of the external teeth mesh with some of the internal teeth. The flexible external gear thus rotates relative to the rigid internal gear according to the difference in the number of teeth between the flexible external gear and the rigid internal gear.

Abstract: An internal-meshing planetary gear device includes an internally toothed gear provided with internal teeth and is fixed to an outer ring. A planetary gear is provided with external teeth which partially mesh with the internal teeth. A plurality of internal pins is respectively inserted into a plurality of internal pin holes formed on the planetary gear revolve within the internal pin holes and rotate relative to the internally toothed gear. An inner ring includes a first inner ring and a second inner ring, which are opposite each other in a direction parallel to a rotation axis and have opposite surfaces that come in contact with each other. The first inner ring has a plurality of holding holes, through which the plurality of internal pins respectively penetrate in the direction parallel to the rotation axis. Each of the plurality of internal pins is held in the inner ring and is rotatable.

Abstract: The application relates to a device and method for measuring a high electron mobility transistor. The device provided includes a controller, a protection circuit, a load circuit and a switching circuit electrically connected between the load circuit and the protection circuit. The controller is configured to provide a first control signal having a first value to a semiconductor component at a first time point and provide a second control signal having a second value to the switching circuit at a second time point. The semiconductor component is turned on by the first value of the first control signal, and the switching circuit is turned on by the second value of the second control signal. The second time point is later than the first time point.

Abstract: A testing circuit includes a first circuit and a second circuit. The first circuit and second circuit have a first capacitor and a second capacitor. The first circuit is connected to a first transistor. The second circuit is connected to a second transistor. A first inductor has a first terminal connected to an input of the testing circuit and a second terminal connected to a source of the second transistor. A first diode has an anode connected to ground and a cathode connected to the second terminal of the first inductor. The second capacitor has a first terminal connected to a drain of the second transistor and a second terminal connected to ground. The first capacitor has a first terminal connected to the input of the testing circuit and a second terminal connected to ground.

Abstract: A harmonic gear device includes a rigid internal gear, a flexible external gear and a wave generator. The rigid internal gear is an annular component having internal teeth. The flexible external gear is an annular component, which has external teeth and is configured on an inner side of the rigid internal gear. The wave generator is configured on an inner side of the flexible external gear, and deflects the flexible external gear. The harmonic gear device deforms the flexible external gear along with the rotation of the wave generator taking a rotation axis as the center, such that some of the external teeth mesh with some of the internal teeth. The flexible external gear rotates relative to the rigid internal gear in accordance with the difference between the numbers of teeth of the flexible external gear and the rigid internal gear.

Abstract: A switched mode power supply is provided. The switched mode power supply includes an active clamped flyback converter with one or more GaN-based power semiconductor transistors and a planar transformer. The planar transformer includes a magnetic core and primary and secondary planar coil windings. The magnetic core includes a lower core and an upper core. The lower core has at least three projections including a central projection and two peripheral projections. The central projection is configured to accept the primary and the secondary planar coil windings which surround the central projection. The central projection has a stepped upper surface such that first and second gaps of different spacings are formed between the lower core and the upper core when the two peripheral projections contact the upper core.

Abstract: The present invention provides a high efficiency, high density GaN-based power converter comprising: a transformer; a magnetic coupler; a primary switch; a secondary switch; a primary controller; a secondary controller; a multi-layered print circuit board (PCB) comprising: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the transformer, the coupler, a primary switch, a secondary switch, a primary controller and a secondary controller. The power converter further comprises a pair of ferrite cores being fixed to a top surface and a bottom surface of the PCB respectively and commonly shared by the transformer and the coupler.

Abstract: A testing circuit includes a first circuit and a second circuit. The first circuit and second circuit have a first capacitor and a second capacitor. The first circuit is connected to a first transistor. The second circuit is connected to a second transistor. A first inductor has a first terminal connected to an input of the testing circuit and a second terminal connected to a source of the second transistor. A first diode has an anode connected to ground and a cathode connected to the second terminal of the first inductor. The second capacitor has a first terminal connected to a drain of the second transistor and a second terminal connected to ground. The first capacitor has a first terminal connected to the input of the testing circuit and a second terminal connected to ground.

Abstract: The electronic circuits and semiconductor device having the same are provided. The electronic circuit includes: a first transistor including a first electrode coupled with an input voltage; a second transistor including a first electrode coupled with a second electrode of the first transistor; a first capacitor coupled between the first transistor and the second transistor; a first diode including a first terminal coupled with the first electrode of the first transistor; a second diode including a first terminal coupled with a second terminal of the first diode and a second terminal coupled with a second electrode of the second transistor; a second capacitor coupled between the first transistor and the first diode; and a third capacitor coupled between the first diode and the second transistor.

Abstract: A testing circuit includes a first circuit and a second circuit. The first circuit has a first capacitor and a second capacitor. The first circuit is configured to transfer at least a portion of a first voltage across the first capacitor to the second capacitor. The second circuit has the first capacitor and the second capacitor. The second circuit is configured to transfer at least a portion of a second voltage across the second capacitor to the first capacitor.