Abstract: A power convertor, comprising: a first switch coupled to an input power source, the input power source configured to generate an input current; a second switch coupled to the input power source; a third switch coupled to the first switch; a fourth switch coupled to the second switch; and a plurality of inductances coupled to each of the first switch, the second switch, the third switch, and the fourth switch, wherein when the second switch is turned off and the fourth switch is turned on, the third switch is turned off, and when each of the first switch, the third switch and the fourth switch is turned on, the plurality of inductances generate an output current according to the input current to provide power to a load.

Abstract: A visbroken hydrogenated styrenic block copolymer (m-HSBC) is disclosed. The polymer comprises at least one vinyl-aromatic block “S” and at least one rubbery block “R” derived from hydrogenated diene units. The visbroken HSBC is produced by controlled chain scission of a high-molecular-weight HSBC precursor and retains a GPC major peak molecular weight (Mp) of greater than 200 kg/mol. The visbroken HSBC exhibits a very low melt flow rate (MFR) of <10 g/10 min when measured at 190° C. under a 2.16 kg load. The visbroken HSBC provides a balance of controlled melt flow, elasticity, and mechanical integrity, making it particularly suitable for foam and foam-forming compositions.

Abstract: A visbroken hydrogenated styrenic block copolymer (m-HSBC) is provided. The m-HSBC includes at least one vinyl-aromatic block “S” and at least one rubbery block “R” derived from hydrogenated diene units. It is produced by controlled chain scission of a HSBC precursor. The chain-scission process forms lower-molecular-weight species and increases melt flow rate (MFR). The m-HSBC has a GPC major peak molecular weight (Mp) of 10-200 kg/mol, a residual unsaturation (RU) of up to 0.5 meq/g, and a melt flow rate (MFR) of 10-2000 g/10 min at 190° C./2.16 kg. The m-HSBC can be functionalized with anhydride, epoxy, silane, or (meth)acrylate groups. The m-HSBC or functionalized m-HSBC provides high MFR, good elasticity, and improved substrate wetting. The materials are suitable for use in adhesives, sealants, coatings, CCL, and other melt-processed applications.

Abstract: The disclosure discloses a power protecting device. The power protecting device comprises an input power source coupled to a first capacitor at a first node, configured to provide an input voltage signal; a first switch coupled to the first capacitor; a first resistor coupled to the first capacitor and connected in parallel with the first switch; and an absorber circuit coupled to the first node or coupled to the first node through the first capacitor, wherein the absorber circuit is coupled between the input power source and the first switch, and the absorber circuit is connected in parallel with each of the first switch and the first resistor, or the absorber circuit is coupled to the first capacitor, the first switch and the first resistor, and the absorber circuit is connected in parallel with a combo of the first capacitor, the first switch, and the first resistor.

Abstract: A method of controlling a converting device is disclosed. The method comprises turning on a first switch coupled to a primary coil and a second switch coupled to the primary coil to generate a primary current flowing through the primary coil; generating a secondary current flowing through a secondary coil according to the primary current, and powering a load by the secondary current; when each of the first switch and the second switch is turned off, turning on a third switch coupled to the primary coil and a fourth switch coupled to the primary coil; when the third switch is turned off, discharging a capacitor of the second switch to the primary coil, and reducing a voltage difference of two terminals of the second switch to a zero voltage level; and turning on the second switch when the voltage difference of the two terminals of the second switch has the zero voltage level.

Abstract: A power converter comprising a circuit substrate, a controller circuit, and multiple power conversion circuits is provided. The controller circuit is arranged on the circuit substrate. The multiple power conversion circuits are coupled to the controller circuit, and are arranged on the circuit substrate in an in-line package. The power conversion circuits are connected in parallel, and are configured to convert an input power into an output power. The controller circuit is configured to control multiple power switches in the power conversion circuits by multiple phase-interleaved signals so that the power conversion circuits generate the output power.

Abstract: An integrated magnetic core is provided. The integrated magnetic core includes a first plate and a second plate. The first plate includes a plurality of legs extending outwardly from a first surface of the first plate. The plurality of legs includes first and second oppositely disposed legs and third and fourth oppositely disposed legs. The second plate is coupled to at least the third and fourth legs of the first plate.

Abstract: An integrated magnetic assembly includes a magnetic core having a first component and a second component. The first component includes a first face and a winding leg extending from the first face. The winding leg includes a top face spaced from and oriented generally parallel to the first face. The second component is coupled to the first component and has a second face facing the first face. The second component further includes a third face recessed from and oriented generally parallel to the second face and a recess sidewall extending between the second face and the third face. The integrated magnetic assembly further includes an input winding and an output winding each inductively coupled to the magnetic core. The third face and the recess sidewall define a recess within the second face. Additionally, a gap is defined between the top face and the third face.

Abstract: An integrated magnetic assembly includes a magnetic core having a first component and a second component. The first component includes a first face and a winding leg extending from the first face. The winding leg includes a top face spaced from and oriented generally parallel to the first face. The second component is coupled to the first component and has a second face facing the first face. The second component further includes a third face recessed from and oriented generally parallel to the second face and a recess sidewall extending between the second face and the third face. The integrated magnetic assembly further includes an input winding and an output winding each inductively coupled to the magnetic core. The third face and the recess sidewall define a recess within the second face. Additionally, a gap is defined between the top face and the third face.

Abstract: An integrated magnetic core is provided. The integrated magnetic core includes a first plate and a second plate. The first plate includes a plurality of legs extending outwardly from a first surface of the first plate. The plurality of legs includes first and second oppositely disposed legs and third and fourth oppositely disposed legs. The second plate is coupled to at least the third and fourth legs of the first plate.