Abstract: A DLL circuit comprising a delay circuit, a phase detector and a counting control circuit. The delay circuit is configured to receive a reference clock signal, and delay the reference clock signal to output a delayed clock signal. The phase detector is configured to detect a phase difference between the reference clock signal and the delayed clock signal to generate a phase difference signal. The counting control circuit is configured to generate a control delay signal according to the phase difference signal. The delay circuit delays the reference clock signal according to the control delay signal to output the delayed clock signal. When the counting control circuit is in the first mode, the counting control circuit has a first update frequency. When the counting control circuit is in the second mode, the counting control circuit has a second update frequency.

Abstract: A switchable high and low magnification lightweight microscope lens structure has a first microscope unit, a second microscope unit and a hinge. The first microscope unit has a first microscope lens having a first adhesive piece adhesively attached to an inner side of the first microscope unit with a hole formed through the first adhesive piece. The second microscope unit has a second microscope lens with a magnification higher than that of the first microscope lens having a second adhesive piece adhesively attached to an inner side of the second microscope unit. The hinge has two fixed arms, a pivoting block and a pivoting pin. The fixed arms are formed on and protrude from one edge of the first microscope unit. The pivoting block are formed on and protrudes from one edge of the second microscope unit, and mounted between the fixed arms.

Abstract: A switchable high and low magnification lightweight microscope lens structure has a first microscope unit, a second microscope unit and a hinge. The first microscope unit has a first microscope lens having a first adhesive piece adhesively attached to an inner side of the first microscope unit with a hole formed through the first adhesive piece. The second microscope unit has a second microscope lens with a magnification higher than that of the first microscope lens having a second adhesive piece adhesively attached to an inner side of the second microscope unit. The hinge has two fixed arms, a pivoting block and a pivoting pin. The fixed arms are formed on and protrude from one edge of the first microscope unit. The pivoting block are formed on and protrudes from one edge of the second microscope unit, and mounted between the fixed arms.

Abstract: A movable and replaceable lens structure for electronic devices has a lens-mounting body mounted on and electrically connected with a electronic device, and a movable lens module mounted on the lens-mounting body and having a movable mechanism mounted on the lens-mounting body or a housing of the electronic device. The movable lens module has a movable mechanism mounted on the lens-mounting body or the housing of the electronic device. A lens is connected with the movable mechanism. An operation part is connected with the movable mechanism. The movable mechanism can be operated to move along a straight line, rotate or pivot, thereby moving the lens to align with an optical axis of the movable lens module and varying the focus of field of view of the movable lens module. Accordingly, the lens with different picture-taking effect can be provided, such as a wide-angle, microscopic or telescopic lens.

Abstract: A portable high-power microscope magnification lens structure, mainly comprises: a main body, a high-power lens being disposed on a middle part thereof which is passed through, an adhesive portion being disposed on a rear edge of the main body, LED lamps used for light compensating illumination being disposed around the lens on a front side of the main body; and a rear cover, one side thereof being pivotally connected to the main body, the rear cover being foldable to cover a rear side of the main body, and a hollow space for receiving batteries being disposed on the rear cover and connected to the LED lamps through a switch; whereby, the additional unit can be attached to the lens of a cellular phone, tablet or camera, used to shoot and observe high-power microscopically magnified images, used as the teaching assistance for the observation of organisms or physical objects, and used for the microscopic magnification photography of the details of other industrial product structures, and the pictures taken from

Abstract: A movable and replaceable lens structure for electronic devices has a lens-mounting body mounted on and electrically connected with a electronic device, and a movable lens module mounted on the lens-mounting body and having a movable mechanism mounted on the lens-mounting body or a housing of the electronic device. The movable lens module has a movable mechanism mounted on the lens-mounting body or the housing of the electronic device. A lens is connected with the movable mechanism. An operation part is connected with the movable mechanism. The movable mechanism can be operated to move along a straight line, rotate or pivot, thereby moving the lens to align with an optical axis of the movable lens module and varying the focus of field of view of the movable lens module. Accordingly, the lens with different picture-taking effect can be provided, such as a wide-angle, microscopic or telescopic lens.

Abstract: A portable high-power microscope magnification lens structure, mainly comprises: a main body, a high-power lens being disposed on a middle part thereof which is passed through, an adhesive portion being disposed on a rear edge of the main body, LED lamps used for light compensating illumination being disposed around the lens on a front side of the main body; and a rear cover, one side thereof being pivotally connected to the main body, the rear cover being foldable to cover a rear side of the main body, and a hollow space for receiving batteries being disposed on the rear cover and connected to the LED lamps through a switch; whereby, the additional unit can be attached to the lens of a cellular phone, tablet or camera, used to shoot and observe high-power microscopically magnified images, used as the teaching assistance for the observation of organisms or physical objects, and used for the microscopic magnification photography of the details of other industrial product structures, and the pictures taken from

Abstract: A magnetic device includes a thermally-conductive bobbin and a winding coil. The thermally-conductive bobbin has a winding section. The winding coil is wound around the winding section. The heat generated from the winding coil is dissipated away through the thermally-conductive bobbin.

Abstract: A transformer. The transformer comprises a bobbin, a first core and a second core. The bobbin comprises a primary winding area and a secondary winding area. The first core is disposed in the bobbin. The second core is mounted on the bobbin. The second core comprises a plurality of first protrusions which are disposed at two sides of the bobbin. A second protrusion is integrally formed on the second core and is disposed between the first protrusions. The second protrusion is disposed between the primary winding area and the secondary winding area.

Abstract: A transformer includes a bobbin, a first winding, a second winding, a core set and an insulating cover. The bobbin has a first winding area and a second winding area. The first winding and the second winding are wound around the first and second winding areas of the bobbin, respectively. The core set surrounds the first winding and the second winding. The insulating cover covers the bobbin and completely covers the core set except inserting sides of the core set.

Abstract: An inductor includes a bobbin, a first winding, a second winding, a core set and a magnetic element. The first and second windings are respectively wound around the bobbin and separated by a partition, which is formed on the bobbin and has a recess for accommodating the magnetic element. The core set has one portion passing through the bobbin and the other portion surrounding the bobbin, the first winding and the second winding. The magnetic element is connected with the one portion of the core set passing through the bobbin and is apart from the other portion of the core set outside the bobbin by a gap.

Abstract: An electromagnetic interference (EMI) filter includes a first magnetomotive element, a first wire, a second wire, and a second magnetomotive element. The second magnetomotive element forms a closed magnetic loop, which comprises a first portion penetrating a through hole of the first magnetomotive element. Thus, the first wire and the second wire in the Filter filter not only differential mode noise but also common mode noise.

Abstract: A transformer with insulating structure includes a bobbin, a first winding, a second winding, a core set and a cover. The bobbin has a non-winding area with a plurality of partitions, and an insulating slot is formed between adjacent two partitions. The first winding and the second winding are wound around the bobbin, and the non-winding area is located between the first winding and the second winding. The core set is disposed around the first winding and the second winding. The cover includes a plurality of insulating protrusions extending into the insulating slots so that the insulating protrusions and partitions are alternately arranged to form a closed path and attain the insulation effect.

Abstract: An inductor includes a bobbin, a first winding, a second winding, a core set and a magnetic element. The first and second windings are respectively wound around the bobbin and separated by a partition, which is formed on the bobbin and has a recess for accommodating the magnetic element. The core set has one portion passing through the bobbin and the other portion surrounding the bobbin, the first winding and the second winding. The magnetic element is connected with the one portion of the core set passing through the bobbin and is apart from the other portion of the core set outside the bobbin by a gap.

Abstract: A transformer. The transformer comprises a bobbin, a first core and a second core. The bobbin comprises a primary winding area and a secondary winding area. The first core is disposed in the bobbin. The second core is mounted on the bobbin. The second core comprises a plurality of first protrusions which are disposed at two sides of the bobbin. A second protrusion is integrally formed on the second core and is disposed between the first protrusions. The second protrusion is disposed between the primary winding area and the secondary winding area.

Abstract: An ignition coil. The ignition coil includes a casing, a bobbin, and a core. The bobbin includes a body, a primary coil surrounding the body, a secondary coil surrounding the body, a plurality of first terminals embedded in the body, and two secondary coils embedded in the body. The bobbin is disposed inside the casing. The primary coil is connected to the second terminal, and the secondary coil is connected to the first terminal. Each first terminal is abutted by the body and the casing respectively so that each first terminal is maintained in a predetermined position on the body. The core is disposed inside the bobbin.

Abstract: An electromagnetic interference (EMI) filter includes a first magnetomotive element, a first wire, a second wire, and a second magnetomotive element. The second magnetomotive element forms a closed magnetic loop, which comprises a first portion penetrating a through hole of the first magnetomotive element. Thus, the first wire and the second wire in the Filter filter not only differential mode noise but also common mode noise.

Abstract: An inverter transformer and a core structure thereof are described. The core structure of the inverter transformer has a first core and a second core. The first core has a plurality of fork elements, a connection element, and a bottom element. The fork elements are parallel with each other and connect with the connection element. The connection element further connects with the bottom element, and therefore the bottom element and the fork elements are configured at respective sides of the connection element. The second core has a plurality of fork position openings and a bottom opening. The fork position openings correspond one-to-one with the fork elements and the bottom opening corresponds to the bottom element. The second core further includes a bottom indentation and a plurality of fork position indentations to form gaps and lock a primary coil module and secondary coil modules.

Abstract: A structure of speaker is disclosed. The disclosed speaker structure includes at least a bobbin, a coil, a membrane, and a magnetic assembly. The coil is wound around the side surface of the bobbin, and the membrane is disposed at end of the bobbin. Besides, the magnetic assembly is suspended in a through hole of the bobbin and have one end adhered to the membrane.

Abstract: A transformer. A transformer includes an iron core structure, a first bobbin, a first primary coil, a first secondary coil, a second bobbin, a second primary coil and a second secondary coil. The first bobbin has a first hollow portion and a second hollow portion. The iron core structure passes through and surrounds the first and second hollow portions. The first primary coil is wound on the first hollow portion. The first secondary coil is wound on the second hollow portion. The second bobbin has a third hollow portion and a fourth hollow portion. The iron core structure passes through and surrounds the third and fourth hollow portions. The second primary coil is wound on the third hollow portion. The second secondary coil is wound on the fourth hollow portion.