Abstract: A soft-switching power converter includes a main switch, an energy-releasing switch, and an inductive coupled unit. The main switch is a controllable switch. The energy-releasing switch is coupled to the main switch. The inductive coupled unit is coupled to the main switch and the energy-releasing switch. The inductive coupled unit includes a first inductance, a second inductance coupled to the first inductance, and an auxiliary switch unit. The auxiliary switch unit is coupled to the second inductance to form a closed loop. The main switch and the energy-releasing switch are alternately turned on and turned off. The auxiliary switch unit is controlled to start turning on before the main switch is turned on so as to provide at least one current path.

Abstract: A soft-switching power converter includes a main switch, an energy-releasing switch, and an inductive coupled unit. The main switch is a controllable switch. The energy-releasing switch is coupled to the main switch. The inductive coupled unit is coupled to the main switch and the energy-releasing switch. The inductive coupled unit includes a first inductance, a second inductance coupled to the first inductance, and an auxiliary switch unit. The auxiliary switch unit is coupled to the second inductance to form a closed loop. The main switch and the energy-releasing switch are alternately turned on and turned off. The auxiliary switch unit is controlled to start turning on before the main switch is turned on so as to provide at least one current path.

Abstract: A soft-switching power converter includes a main switch, an energy-releasing switch, and an inductive coupled unit. The main switch is a controllable switch. The energy-releasing switch is coupled to the main switch. The inductive coupled unit is coupled to the main switch and the energy-releasing switch. The inductive coupled unit includes a first inductance, a second inductance coupled to the first inductance, and an auxiliary switch unit. The auxiliary switch unit is coupled to the second inductance to form a closed loop. The main switch and the energy-releasing switch are alternately turned on and turned off. The auxiliary switch unit is controlled to start turning on before the main switch is turned on so as to provide at least one current path.

Abstract: Disclosed are a drive structure for an OIS motor, an OIS motor, and a camera device. The key points of technical solutions are: a drive structure for an OIS motor includes a base, a conductive layer, a spring, and four SMA wires, the base is made of an insulating material, the conductive layer is disposed in the base, and terminals of the conductive layer protrude from the surface of the base; the base is provided with two first crimpers electrically connected to the conductive layer and disposed opposite to each other, the spring is provided with two second crimpers disposed opposite to each other, the four SMA wires are uniformly distributed on four sides of the base, and two ends of the SMA wires are respectively connected to the corresponding first crimpers and second crimpers.

Abstract: An isolated conversion apparatus with magnetic bias balance control includes an isolated converter, a controller, and a magnetic bias balance circuit. The isolated converter includes a transformer, and a primary side of the transformer includes a primary-side winding and at least one switch bridge arm. The controller is coupled to the at least one switch bridge arm, and provides a pulse width modulation (PWM) signal group to control the at least one switch bridge arm. The magnetic bias balance circuit is coupled to two ends of the primary-side winding and the controller, and provides a compensation voltage to the controller according to an average voltage of a winding voltage across the two ends of the primary-side winding. The controller adjusts a duty cycle of the PWM signal group according to the compensation voltage to correct the magnetic bias.

Abstract: Disclosed are a drive structure for an OIS motor, an OIS motor, and a camera device. The key points of technical solutions are: a drive structure for an OIS motor includes a base, a conductive layer, a spring, and four SMA wires, the base is made of an insulating material, the conductive layer is disposed in the base, and terminals of the conductive layer protrude from the surface of the base; the base is provided with two first crimpers electrically connected to the conductive layer and disposed opposite to each other, the spring is provided with two second crimpers disposed opposite to each other, the four SMA wires are uniformly distributed on four sides of the base, and two ends of the SMA wires are respectively connected to the corresponding first crimpers and second crimpers.

Abstract: A soft-switching power converter includes a main switch, an energy-releasing switch, and an inductive coupled unit. The main switch is a controllable switch. The energy-releasing switch is coupled to the main switch. The inductive coupled unit is coupled to the main switch and the energy-releasing switch. The inductive coupled unit includes a first inductance, a second inductance coupled to the first inductance, and an auxiliary switch unit. The auxiliary switch unit is coupled to the second inductance to form a closed loop. The main switch and the energy-releasing switch are alternately turned on and turned off. The auxiliary switch unit is controlled to start turning on before the main switch is turned on so as to provide at least one current path.

Abstract: An isolated conversion apparatus with magnetic bias balance control includes an isolated converter, a controller, and a magnetic bias balance circuit. The isolated converter includes a transformer, and a primary side of the transformer includes a primary-side winding and at least one switch bridge arm. The controller is coupled to the at least one switch bridge arm, and provides a pulse width modulation (PWM) signal group to control the at least one switch bridge arm. The magnetic bias balance circuit is coupled to two ends of the primary-side winding and the controller, and provides a compensation voltage to the controller according to an average voltage of a winding voltage across the two ends of the primary-side winding. The controller adjusts a duty cycle of the PWM signal group according to the compensation voltage to correct the magnetic bias.

Abstract: A lampshade and a lamp are disclosed. The lampshade includes a base plate, an elastic cover, a support member, and a linking-up member. The base plate includes a container and a positioning member, and the container and the positioning member are configured on a surface of the base plate. The elastic cover covers the surface of the base plate. Two ends of the support member are bent to form two pivots which are pivotally connected to the base plate. The support member is capable of being received in the container. The linking-up member includes a fixing portion, a first end and a second end. The fixing portion is configured between the first end and the second end, and the fixing portion fixed to the support member. The linking-up member is movably disposed at the positioning member, and the linking-up member may allow the support member to move.

Abstract: A lampshade and a lamp are disclosed. The lampshade includes a base plate, an elastic cover, a support member, and a linking-up member. The base plate includes a container and a positioning member, and the container and the positioning member are configured on a surface of the base plate. The elastic cover covers the surface of the base plate. Two ends of the support member are bent to form two pivots which are pivotally connected to the base plate. The support member is capable of being received in the container. The linking-up member includes a fixing portion, a first end and a second end. The fixing portion is configured between the first end and the second end, and the fixing portion fixed to the support member. The linking-up member is movably disposed at the positioning member, and the linking-up member may allow the support member to move.

Abstract: A cover structure for an electronic device comprises a protective cover and a touch element. The protective cover is connected with the electronic device, and the protective cover is capable of being rotated with respect to the electronic device to a front side or a rear side of the electronic device. The touch element is disposed at the protective cover and can be exerted by an external force to touch the electronic device and activate corresponding functions of the electronic device.

Abstract: A portable electronic device includes a main body, a camera and a sliding cover structure. One surface of the main body has a convex portion and a planar portion. The camera and the sliding cover are provided at the planar portion. The sliding cover structure includes an inclined slideway and a cover having at least one sliding portion. The inclined slideway inclines from the convex portion to the camera to form an inclined angle with a horizontal axis of the main body. The cover slides along the inclined slideway via the sliding portion and movably covers the camera. When the cover covering the camera slides to the convex portion and partially covers the convex portion, the camera is exposed. The sliding cover structure protects the camera on the portable electronic device, and the functions of real-time camera activation are achieved while the comfort of user gripping is enhanced.

Abstract: A cover structure for an electronic device comprises a protective cover and a touch element. The protective cover is connected with the electronic device, and the protective cover is capable of being rotated with respect to the electronic device to a front side or a rear side of the electronic device. The touch element is disposed at the protective cover and can be exerted by an external force to touch the electronic device and activate corresponding functions of the electronic device.

Abstract: Resources, such as bandwidth, are allocated on a network as follows. A request for reservation of network resources is received. The reservation includes a destination address on the network. Resources on network devices on a path to the destination address are allocated to accommodate the reservation if the network devices have sufficient resources to accommodate the reservation.

Abstract: Access is provided to a resource on a network by installing instructions on the network that define a fixed level of access to the resource. The instructions are modified to change the level of access to the resource. The instructions may be a filter that is installed on a device on the network. The filter is defined by matching criteria and an action. The matching criteria identify a network address and perform the action with respect to the network address.

Abstract: A network resource, such as bandwidth, is reserved by obtaining historical usage data relating to usage of the network resource over a period of time, and determining an amount by which the network resource can be oversubscribed based on the historical usage data. Current usage data relating to current usage of the network resource may also be determined. The amount by which the network resource can be oversubscribed may be determined based additionally on the current usage data.

Abstract: Data over a range of values is stored using a segment tree data structure. One or more nodes are generated to cover the range of values based on a parent node in the segment tree data structure. The one or more nodes are generated by subdividing nodes of the segment tree data structure only along paths from the parent node to the one or more nodes. The data is stored in the one or more nodes.