Abstract: A cable TV amplifier system, including: an amplifier module, including a body, a power connecting port, a signal input port, and a plurality of signal output ports; and a power converter, including an AC power input terminal, at least one DC power output terminal, and a switching power converting circuit for converting an AC voltage to a DC voltage to power the amplifier module; wherein, the switching power converting circuit includes a surge protection circuit, a bridge rectifying circuit, an energy transmission unit, a feedback unit, and a control unit, and the control unit will stop outputting a pulse width modulation signal when the AC voltage has an amplitude larger than a first level or smaller than a second level, the first level being higher than the second level.

Abstract: A cable TV coaxial video and network transmitter includes: a top cover having plural signal transmitting ports at peripheral positions thereof; plural connection guiding seats, wherein the bottom surfaces thereof are respectively protruded with a conductive pin; a bottom cover, combined with the top cover, and the interior thereof is installed with a printed circuit board; and plural insertion seats, fastened on the printed circuit board corresponding to the conductive pins, wherein one side of each of the insertion seats is formed with at least one connection leg, and the other side thereof is formed with an elastic clipping end having the interior formed with a pair of clamping segments, the contact length and the contact area between the pair of clamping segments and each of the conductive pins can be determined according to the dimension of the pair of clamping segments.

Abstract: The present invention relates to a VoIP phone splitting device having MoCA block function, which includes: a low-pass filtering unit used for inputting a RF signal; a first-stage splitter, a first output end thereof is coupled to an output for attenuating the RF signal to a first value so as to be outputted; a second-stage splitter, an input end thereof is coupled to a second output end of the first-stage splitter for attenuating the RF signal to a second value so as to be outputted; and at least a third-stage splitter, an input end thereof is coupled to an output end of the second-stage splitter for attenuating the RF signal to a third value so as to be outputted to at least a user-end connector.

Abstract: The present invention relates to a splitter having MoCA block function, which includes: a low-pass filtering unit, one end thereof is coupled to an input end of a splitter for inputting a RF signal and performing a low-pass filtering operation to the RF signal; a first-stage splitter, an input end thereof is coupled to an output end of the low-pass filtering unit for attenuating the RF signal to a first value so as to be outputted; and at least a second-stage splitter, an input end thereof is coupled to an output end of the first-stage splitter for attenuating the RF signal to a second value so as to be outputted to at least a user-end connector.

Abstract: The present invention relates to a multi-tap having MoCA cutoff function, which includes: a low-pass filtering unit used for inputting a RF signal; a directional coupler used for outputting the RF signal; a first-stage splitter, an input end thereof is coupled to a second output end of the directional coupler for attenuating the RF signal to a first value so as to be outputted; and at least a second-stage splitter, an input end thereof is coupled to an output end of the first-stage splitter for attenuating the RF signal to a second value so as to be outputted to at least a user end.

Abstract: An insulation displacement contact terminal block for providing electrical contact with a bundle of twisted pair wires having at least two differentially driven wire-pairs, a first wire-pair diverging from a second wire-pair at a diverging point of the bundle, and a first wire of each wire-pair untwisting from a second wire of that wire-pair at an untwisting point, the terminal block comprising a first contact-pair and a second contact-pair. The first contact-pair comprising first and second insulation displacement contacts for electrical connection with respective first and second wires of the first wire-pair. The second contact-pair comprising first and second insulation displacement contacts for electrical connection with respective first and second wires of the second wire-pair. The first and second insulation displacement contacts of each contact-pair are substantially equidistant from the untwisting point and are proximate to the untwisting point.

Abstract: The present invention relates to a lightning protective high-voltage divider, which comprises: a printed circuit board; an impedance coil; a coupling capacitor having one end being coupled to the signal input terminal; a transformer having a primary coil and a secondary coil, wherein one end of the primary coil is coupled to the other end of the coupling capacitor, the other end of the primary coil is grounded, the secondary coil is coupled to at least a signal output terminal, so the input signal inputted by the signal input terminal is enabled to be coupled to the signal output terminal through the primary coil and the secondary coil; when a lightning surge current occurs, the impedance coil is able to guide the surge current to the ground, thereby protecting the coupling capacitor from being damaged.

Abstract: The present invention relates to an improved contact surface of pin hole (e.g, a ground pin hole, screw fastening hole, or the like), which is adopted on a substrate, the substrate is formed with at least a pin hole (e.g, a ground pin hole, screw fastening hole, or the like) hole and characterized in that: the periphery of the pin hole (e.g, a ground pin hole, screw fastening hole, or the like) is formed with plural soldering joints and plural penetrated holes, thereby allowing a pin (e.g., pin, ground pin, screw, or the like) and the substrate to be formed with an excellent contact surface for achieving a grounding effect.

Abstract: The present invention relates to a power inserter having frequency compensating function, which comprises: a housing formed with a chamber, a first opening, a second opening and a third opening; a first connector exposed outside the housing through the first opening; a second connector exposed outside the housing through the second opening; a third connector exposed outside the housing through the third opening; and characterized in that: a capacitor is further provided, a first terminal of the capacitor is formed with a winding having at least half turn and coupled to a signal terminal of the third connector, a second terminal of the capacitor is formed with a winding having at least half turn and coupled to a signal terminal of the second connector, thereby being enabled to provide the frequency compensating function.

Abstract: A distributor amplifier having a noise blocking circuit, including: a first connector; a first filter; a transformer; a voltage scaling unit; a first amplifier; a detector; a second amplifier; a comparator; a switch circuit; and a second connector.

Abstract: The present invention provides a ferrite core winding structure with high frequency response, which comprises: a ferrite core formed with at least a penetrated hole, a first enamel wire formed with a first end and a second end, and a second enamel wire formed with a first end and a second end; wherein, the first end of the first enamel wire and the first end of the second enamel wire are mutually twisted for at least one turn and then jointly passed the penetrated hole, the second end of the first enamel wire and the second end of the second enamel wire are jointly encircled the ferrite core then passed the penetrated hole, the second end of the first enamel wire is respectively encircled the ferrite core for at least one turn at two sides of the winding formed by the first end of the first enamel wire, then the second end of the first enamel wire and the first end of the second enamel wire are twisted for plural turns at the outer side of the ferrite core thereby forming a common end.

Abstract: The present invention relates to a lightning protective high-voltage divider, which comprises: a printed circuit board; an impedance coil; a coupling capacitor having one end being coupled to the signal input terminal; a transformer having a primary coil and a secondary coil, wherein one end of the primary coil is coupled to the other end of the coupling capacitor, the other end of the primary coil is grounded, the secondary coil is coupled to at least a signal output terminal, so the input signal inputted by the signal input terminal is enabled to be coupled to the signal output terminal through the primary coil and the secondary coil; when a lightning surge current occurs, the impedance coil is able to guide the surge current to the ground, thereby protecting the coupling capacitor from being damaged.

Abstract: An insulation displacement contact terminal block for providing electrical contact with a bundle of twisted pair wires having at least two differentially driven wire-pairs, a first wire-pair diverging from a second wire-pair at a diverging point of the bundle, and a first wire of each wire-pair untwisting from a second wire of that wire-pair at an untwisting point, the terminal block comprising a first contact-pair and a second contact-pair. The first contact-pair comprising first and second insulation displacement contacts for electrical connection with respective first and second wires of the first wire-pair. The second contact-pair comprising first and second insulation displacement contacts for electrical connection with respective first and second wires of the second wire-pair. The first and second insulation displacement contacts of each contact-pair are substantially equidistant from the untwisting point and are proximate to the untwisting point.

Abstract: The present invention relates to an integrated power inserter, comprises: a housing; a voltage lowering and rectifying member; and a coupling member having a power input end, a radio frequency signal coupling circuit, a radio frequency signal input end and a radio frequency signal output end, wherein the radio frequency signal input end is input with a radio frequency signal and outputs a power signal, the radio frequency signal output end outputs a radio frequency signal being coupled to a television; with the mentioned structure of the integrated power inserter, a power inserter can be integrated in a power adaptor for simplifying wire layout and lowering production cost.

Abstract: The present invention relates to a lightning protection device, comprises: a front cover member; a first insulation member; an electric conduction pin; a second insulation member; a connector, a through hole is longitudinally installed in the connector; a gas tube installed in the through hole; a top cover; and a grounding base having a base hole for accommodating the connector and is contact with the top cover, a screw hole is installed at one end of the base hole for fastening a locking member. The mentioned lightning protection device has advantages of utilizing less components, reducing volume and lowering production cost.

Abstract: The present invention relates to a fastening structure of signal connector, comprises: a connector main body, which is a round-column shaped member, an insert orifice is provided on a top end of the connector main body and a signal terminal is provided in the connector main body, a middle portion of the connector main body has a combining ring-shaped surface, a positioning slot is provided on the combining ring-shaped surface, a bottom portion of the connector main body is provided with a positioning section; the connector main body is passed through a through hole preset on a base seat of an electronic equipment and the positioning section thereof is connected to a jointing section provided at a bottom end of the through hole; and a latching ring, an arched connecting sheet is provided between a top ring member and a bottom ring member for connection, and the latching ring is sleeved on the combining ring-shaped surface via the top end of the connector main body, so the bottom end of the bottom ring member i

Abstract: The present invention relates to a bolt connecting structure of wire, includes: a housing, which is an electronic device; a connecting seat integratedly provided at a lateral side of the housing, a bolt hole is axially provided on the top surface of the connecting seat, the bottom surface of the connecting seat is provided with at least one contact surface; a pressing member, which is a hollow frame member, the height of the frame slot provided at the center of the hollow frame member is larger than that of the connecting seat and the frame slot is provided on the connecting seat, the top surface of the pressing member is provided with an adjusting screw hole with respect to the bolt hole, the bottom end of the pressing member is provided with a bottom sheet, at least one wire passing slot is provided on the front and the rear walls of the pressing member and is upwardly extended from the bottom sheet; and a bolt having a head section for being operated by tools and a thread section, the thread section is scr

Abstract: A screw radial connector for electric wires includes a case, a connecting base, a press member and a bolt. The case is capable of providing coaxial cable connector. The connecting base, being integrally attached to a lateral side of the case has a top with a lock hole extending downward from the top to communicate with a receiving part. A stop part is disposed at an inner side of a lateral wall of the receiving part extending inward and upward and a lead rod is opposite to the stop part and passes through the bottom and the top of the connecting base. The press member is a hollow box with an open side with a top groove at an upper side thereof and an inner chamber under the upper side communicating with the top groove.

Abstract: A radial screw connecting device for an electrical wire includes a casing, a connecting seat, a press member and a bolt. The casing provides at least an opening for being extended with a joint. The connecting seat is disposed at and attached to a side of the casing and provides a lock hole and a receiving part. The press member is received in the receiving part and provides a pair of inner arms and an inner chamber. The bolt passes through the lock hole and provides a head, a first threaded part, an unthreaded part and a second threaded part with the second threaded part being engaged in the inner chamber. While in assembling, a ground wire is inserted into the receiving part below the press member and the ground wire can be fixed in the connecting seat and keeps contact with the connecting seat evenly by way of the bolt being turned and pressing a force against the press member and the press member can be lifted along with the bolt during the bolt being turned inversely.

Abstract: A harmonic wave distortion suppressor includes a main body, at least a connecting pin and a coating. The main body is made of a first material and covered with a second material for absorbing an instantaneous high voltage or sharp wave. The connecting pin is coupled to two lateral sides of the main body respectively so as to form a capacitor. The coating is coated on the main body locally with a clearance being exposed and the clearance provides a function of charging and discharging locally. When the high voltage or sharp wave passes through the harmonic wave distortion suppressor, peak discharging effect of the clearance can not only isolate the high voltage or sharp wave from entering an electronic device but also prevent an iron core in the electronic device from occurring magnetization effect resulting from the high voltage or sharp wave so that quality of signal transmission and receiving can be secured.