56results about "Fixed resistors with intervening connectors" patented technology

An improved IDC trim resistor connector assembly made up of a generally open top cup shape connector with side wall slots and an interior first array of terminal posts arranged for passage therethrough of a first lead wire of sensor circuitry. A first stamped metal IDC terminal is push-on mounted on the terminal posts for IDC cradling and electrically and mechanically receiving and connecting to the first lead wire. A conventional trim resistor substrate is loose mounted but accurately positioned on the connector bottom wall and has an "E" pattern of resistive material adapted for center leg laser trimming to calibrate the associated sensor circuitry. A first IDC terminal spring leg overlap contacts one side leg of the trim resistor E-pattern and thereby spring clamps the resistor substrate. A cover is snap-latch mounted on the connector and has an access opening to enable laser trimming of the trim resistor after cover installation. One end of a second lead wire is received in a second IDC metal terminal in turn mounted on a second array of connector-interior terminal posts and also having a spring leg overlap electrically contacting and clamping the other E-pattern side leg. Spring barbs on the terminals anchor the same once fully inserted downwardly onto the terminal posts. Connector locking tangs and cover locking ears provide snap-on retention of the cover on the connector, and press-in/keeper internal cover projections cause push-down assembly of the lead wires as the cover is latched onto the connector. Cover locking tangs and cap latching ears provide snap-together locking of a cap on the cover when the cap is pushed down on the cover to seal the access opening after completion of laser trimming and in-filling of the covered container with sealant. In a second embodiment a crimp-type terminal, also provided with a spring clamping leg, is fastened to the second lead wire and has a barbed mounting strap clasping a modified second terminal post array when fully installed thereon.

An electrical resistor having a resistance value and capable of withstanding high power surges, utilizing a thick film deposited on a substrate and trimmed with one or more cuts configured to maintain a level of current crowding while increasing the resistance value of the resistor. A surge resistor can be modified in a similar fashion.

According to the invention, the coil of a magnet coil arrangement has a coil body which comprises a winding (14) and is extruded with plastic (17). A plug-in base with contact connectors is formed on the coil, wherein one of the connectors is used for connection of the grounding conductor (18). A metallic housing is placed over the coil. Connection of said metallic housing to the contact connector associated to the grounding conductor is achieved by means of a connection element which is guided through a recess of the plug-in base. A sealing element (42) disposed between the connection element and the recess prevents penetration of a fluid from a region between the metallic housing and the coil, into the region where a connector is connected to the contact connectors. In order to improve the electrical connection between the contact connector associated to the grounding conductor and the metallic housing, for a connection element (31) which is threaded in the metallic housing, a cylindrical metallic part is placed between the contact connector and the metallic housing. A respective sealing element (41, 42) is placed between the connection element and the metallic cylindrical part as well as between said part and the recess of the plug-in base. Such magnet coil arrangements are used in electromechanically-controlled hydraulic valves in which metallic parts accessible from outside must be connected to a grounding conductor.

Digital potentiometer architecture is disclosed, composing of an integrated circuit containing multiple string arrays, each having a plurality of switching devices and an array of resistors. The insertion of an additional string array between the input terminals and the wiper, allows for the disconnection of a common string array and for the independent calibration of the resistance between each input terminal and the wiper.

Electric potentiometer (1) is provided with carrier plate (6) with resistance circuit (3) wherein the free ends (9,12) of the resistance circuit (3) are connected with joint (15,18) of a first and a second electric potentiometer, and a tapping end (27) with a gliding contact (24), wherein the tapping end is connected with the joint (21) of a third electric potentiometer. The resistance circuit (3) is composed of discrete array (4) of resistance part (30) with preset resistance value by electrical connection. In addition, using an existence device (36), the gliding contact (24) is electrically connected with a preset area of the resistance array (4) along its moving track (B) in the adjusting area of the tapping end.

A process tunable resistor is fabricated by adjusting elements of the resistor during a fabrication process. The elements include legs, turns, and elements such as a parallel sub-legs, that are adjusted in the fabrication process to provide a specific user defined resistance value. The process tunable resistor provides for fixed contact points in order to support pre-existing or define circuit designs.

The invention discloses a slide rheostat. The slide rheostat comprises a base and a turntable, wherein an annular conductor is fixedly arranged on the base, a plurality of sub conductors are distributed on the periphery of the annular conductor at intervals, the turntable is rotatably connected with the base, two metal slide sheets are arranged on the turntable, one ends of the two metal slide sheets are electrically connected with the annular conductor, the distance between the other ends of the two metal slide sheets is greater than the interval between two adjacent sub conductors, when the turntable rotates, the other ends of the two metal slide sheets are simultaneously electrically connected with the same sub conductor, the annular conductor is connected with a current input end through a common resistor, and each sub conductor is connected with a current output end through a resistor. The two metal slide sheets of the slide rheostat can rotate clockwise, and also can rotate anticlockwise, the rotation angles are not limited within 360 degrees, and the use is relatively convenient and flexible; after the slide rheostat is applied to an electronic product, the electronic product is relatively convenient to use, so that the user experience on the electronic product is improved.

A variable resistor has a substrate, an insulating film, a resistance element, a rotary assembly and a wiper. The substrate has a first terminal having an annular segment, a second terminal and a third terminal having a semi-circular segment disposed adjacent to the annular segment of the first terminal. The insulating film has a central hole corresponding to the annular segment and covers the second terminal and the semi-circular segment. The resistance element is mounted on the insulating film and contacts the second terminal and the distal end of the semi-circular segment through two gaps of the insulating film. The rotary assembly is mounted on the substrate. The wiper is rotated by the rotary assembly and has multiple contacts respectively contacting the resistance element and the annular segment. Therefore, The rotary assembly can be continuously rotated to prevent accidental breakage without short-circuiting.

Provided is a rotary-operation-type electronic component having a simple design. The present invention includes: a column-shaped operation shaft; a bearing having a pass-through shaft hole; an electrical signal control unit attached to one end of the bearing, for controlling an electrical signal by rotary operation of the operation shaft; and a cylindrical spring, in which the barrel is cut in the center axial direction, accommodated inside a spring accommodation gap formed between the outer peripheral surface of the operation shaft and the inner peripheral surface of the pass-through shaft hole; the cylindrical spring having a plurality of spring plate parts extending in the center axial direction of the operation shaft, arranged mutually connected in the circumferential direction on the outer peripheral surface of the operation shaft; and the number of spring plate parts and the maximum distortion of the spring plate parts being independently adjustable using a structure in which the plurality of spring plate parts have a central region part in the length direction that projects in a curve toward the outer side in the radial direction of the cylindrical spring, the spring plate parts being elastically sandwiched between the outer peripheral surface of the operation shaft and the inner peripheral surface of the pass-through shaft hole, and the length in the center axial direction of the spring plate parts being extendably maintained by the pressing force of the outer peripheral surface and the inner peripheral surface.

A multi-point switching apparatus includes a continuous common pattern formed on a contact circuit board, equally spaced to-be-switched patterns, and a slider that is brought into sliding contact with both the common pattern and one to-be-switched pattern. The slider is moved to make a switchover in succession. The slider includes a first sliding part and second sliding part that are elastically deformable individually. Each to-be-switched pattern includes a first pattern part placed so as to be brought into sliding contact with the first sliding part and a second pattern part placed so as to be brought into sliding contact with the second sliding part. The first pattern part and second pattern part are electrically connected to each other for each of the to-be-switched patterns. While any of the first sliding part and second sliding part is in a space, the other is in sliding contact with the to-be-switched pattern.

A digital potentiometer includes a circuit containing multiple string arrays, each having a plurality of switching devices connected to an array of resistors. Each input terminal receives a separate digital input code enabling the resistance of one of the arms to be varied without changing the other.

The invention relates to a potentiometer, a calibration method and a calibration system of the potentiometer as well as a volume control device and electronic equipment. The potentiometer comprises a resistor body, a first pin, a second pin, a third pin, a fourth pin, a switch, a protective resistor and a movable electric brush, wherein the first pin is connected to the electric brush; the second pin is connected to one end of the resistor body; the third pin is connected to the other end of the resistor body; one end of the protective resistor is connected to the second pin; the other end of the protective resistor is respectively connected to one end of the switch and the fourth pin; the other end of the switch is connected to the third pin. Through the potentiometer, the influence of the residue resistance can be eliminated; when the potentiometer is applied to the volume control of the electronic equipment, the output volume is relatively more accurate.