48results about "Resistors with plural resistive elements" patented technology

The invention relates to a program-controlled resistor card and a program-controlled resistor smooth control method and device thereof. The method comprises the following steps: acquiring a resistor card code combination corresponding to a current resistance value and a target resistance value; a difference mask is calculated through an XOR operation, and a relay set needing to be changed is identified; on the basis of a greedy algorithm strategy, a relay enabling the instantaneous resistance value to be closest to a target value is selected from the difference mask identification set in a successive single-step switching mode for operation; iteratively executing switching and state updating until the difference mask is zero; and finally outputting a switching completion signal. The device comprises a state acquisition module, a difference analysis module, a switching decision module and a driving execution module, realizes smooth transition in a resistance change process through ordered single-step relay switching control, effectively avoids extreme states such as an open circuit or a short circuit, remarkably improves switching precision and system reliability, and is suitable for the fields of precision test measurement and automatic control.

The present invention relates to a resistance unit, a resistance assembly, and a battery pack, and more particularly, to a connectable and separable resistance unit, a resistance assembly connected with a plurality of resistance units, and a battery pack mounted with the resistance assembly. A resistance unit according to one embodiment of the present invention comprises: a first resistance portion formed to extend in a first direction; a second resistance portion formed to extend in a second direction; a housing for accommodating the first resistive portion and the second resistive portion therein; and a terminal portion coupled with one or more of one end of the first resistance portion and one end of the second resistance portion and having a portion protruding out of the housing, in which an opening is formed through a portion of the housing facing the other end of the first resistance portion and a portion of the housing facing the other end of the second resistance portion, and the plurality of resistor units can be connected and separated in the first direction and the second direction, so that resistors of various specifications can be provided without being limited by the installation space of the resistors.

A variable resistor (1A) is provided with: a base material (11); a plurality of comb tooth patterns (45a-45j) which are supported by the base material (11) and extend with intervals therebetween; and a first resist layer (20) disposed on the base material (11) so as to fill the space between the comb tooth patterns (45a-45j), the comb tooth patterns (45a-45j) having an upper surface (46) on the opposite side from the base material (11), and the upper surface (46) being exposed from the first resist layer (20).

The present invention comprises a sensor array (100, 110, 120) comprising: at least one grid of nanogranular sensor elements (20) deposited on a substrate (10, 12, 14); and at least one grid of electrodes (30) electrically connected to the nanogranular sensor elements (20) to enable the measurement of conductivity changes of each individual nanogranular sensor element (20), and a corresponding manufacturing process.

The utility model discloses a load box with an adjusting function. The load box comprises a device body and a plurality of resistors arranged in the device body. An electrical installation assembly and a plurality of wiring copper bars are arranged on one side of the device body, the wiring copper bars are located below the electrical installation assembly, and an operation panel is arranged on one side of the electrical installation assembly; a cavity is formed in the device body, grid plates are symmetrically arranged on the two sides of the cavity, a heat dissipation assembly is arranged on one side of the resistor, and the resistor and the heat dissipation assembly are both arranged in the cavity; according to the resistor box, the grating plates are arranged on the two sides of the resistor and the heat dissipation fan, heat can be rapidly dissipated from the air openings while heat dissipation of the resistor is achieved, heat in the resistor box cannot be increased, the heat dissipation effect is improved, in addition, the size of the resistor is controlled through the multiple operation knobs, flexible adjustment of the resistor box is achieved, and the test effect is improved.

An apparatus comprises a microcontroller including a digital potentiometer provided in a microcontroller packaging. The digital potentiometer includes a resistor ladder including a plurality of resistors arranged in series and a plurality of selectively controllable potentiometer switches, a first resistor terminal connected to the resistor ladder, and a wiper terminal connected to the resistor ladder. The microcontroller includes a processor to transmit a wiper select signal to the digital potentiometer to selectively control the potentiometer switches to selectively connect at least a subset of the resistors between the first resistor terminal and wiper terminal, to thereby control the resistance between the first resistor terminal and wiper terminal. The microcontroller includes a first pin connected to the first resistor terminal and a second pin connected to the wiper terminal, the first and second pins being exposed through the microcontroller packaging to allow connection of the digital potentiometer to an external device.

The utility model relates to the technical field of resistors, in particular to an embedded resistor unit, which comprises an insulated support tube and a plurality of resistor modules, and two ends of the support tube are penetrated to form a heat dissipation channel; a plurality of limiting grooves are formed in the inner wall of the supporting pipe, and the resistor modules are inserted into the limiting grooves from ports of the supporting pipe in a one-to-one correspondence mode. Each resistor module comprises a plurality of resistor blocks which are arranged at intervals and a conductive strip which is used for positioning the plurality of resistor blocks and is connected in series. Compared with the prior art, the multiple resistor modules are arranged at the limiting grooves in the inner wall of the supporting pipe, more resistor modules can be contained, different numbers of resistor modules can be electrically connected according to needs during use, and use is more flexible; and when a local resistor module breaks down, the corresponding resistor module can be conveniently replaced, so that the whole resistor is not scrapped, and the application cost is saved.

The utility model discloses an adjustable resistor, including casing, first connecting portion, second connecting portion, sliding element and external connection line, wherein, the casing inside is provided with multiple resistance bodies of different resistance value and interval arrangement along the front -back direction, and the second connecting portion is equipped with multiple connecting bodies of interval distribution along the longitudinal direction and corresponding connection each resistance body, and sliding element is slidably installed in casing along the longitudinal direction and can select and with one connecting body corresponding connection. In the utility model, through sliding element sliding selection connection different connecting body, can switch in the resistance body of circuit fast, realizes the sectional type accurate regulation of resistance value, solved the problem of traditional sliding type resistor regulation inaccuracy, and simultaneously need not to dismount casing or manual replacement resistance body, only through simple sliding action completes the regulation, and the operation process is greatly simplified, and the use convenience is improved.

The invention relates to the technical field of resistors, in particular to a high-voltage constant-power water-cooling load resistor unit and a manufacturing method thereof.The high-voltage constant-power water-cooling load resistor unit comprises an insulated supporting pipe and a plurality of resistor modules, and the two ends of the supporting pipe penetrate through to form a heat dissipation channel; a plurality of limiting grooves are formed in the inner wall of the supporting pipe, and the resistor modules are inserted into the limiting grooves from ports of the supporting pipe in a one-to-one correspondence mode. Each resistor module comprises a plurality of resistor blocks which are arranged at intervals and a conductive strip which is used for positioning the plurality of resistor blocks and is connected in series. Compared with the prior art, the inner pipe formed by high-pressure blow molding is adopted, the pipe wall of the inner pipe is very thin, heat of the resistor can be easily dissipated into water, and the heat dissipation performance is good. The plurality of resistor modules are arranged at the limiting grooves in the inner wall of the supporting tube, so that more resistor modules can be accommodated, different numbers of resistor modules can be electrically connected according to requirements during use, and the use is more flexible; and when a local resistor module has a fault, the corresponding resistor module can be conveniently replaced.

The present application relates to a kind of program-controlled resistance card and its program-controlled resistor smooth control method, device, wherein the method includes obtaining the resistance card coding combination corresponding to current resistance value and target resistance value;Difference mask is calculated by exclusive or operation, and the relay set to be changed is identified;Based on the strategy of greedy algorithm, in the form of successive single-step switching, the relay that makes instantaneous resistance value closest to target value is selected from the set identified by difference mask and is operated;Switching and state updating are iteratively executed until difference mask is zero;Finally, switching completion signal is output.The device includes state acquisition, difference analysis, switching decision and driving execution module, and through the orderly single-step relay switching control, smooth transition in the resistance value change process is realized, the extreme state such as open circuit or short circuit is effectively avoided, the switching precision and system reliability are significantly improved, and it is suitable for precision test measurement and automation control field.

The utility model relates to a pneumatic adjustable resistor device, comprising: a resistor device housing; an electrode terminal block installed in the resistor device housing; a supporting insulator installed at the bottom of the resistor device; a plurality of chip resistors, all connected to the electrode terminal block; the chip resistors have an input end and an output end, and the output ends of the plurality of chip resistors are connected in parallel; a pneumatic switch is hinged to the output end; the pneumatic switch is configured to open or close the input end. The utility model controls the closing of the resistor by using a cylinder, and can adjust the size of the resistor arbitrarily to obtain an ideal power factor.

An apparatus comprises a microcontroller including a digital potentiometer provided in a microcontroller packaging. The digital potentiometer includes a resistor ladder including a plurality of resistors arranged in series and a plurality of selectively controllable potentiometer switches, a first resistor terminal connected to the resistor ladder, and a wiper terminal connected to the resistor ladder. The microcontroller includes a processor to transmit a wiper select signal to the digital potentiometer to selectively control the potentiometer switches to selectively connect at least a subset of the resistors between the first resistor terminal and wiper terminal, to thereby control the resistance between the first resistor terminal and wiper terminal. The microcontroller includes a first pin connected to the first resistor terminal and a second pin connected to the wiper terminal, the first and second pins being exposed through the microcontroller packaging to allow connection of the digital potentiometer to an external device.

A resettable magnetoresistance fuse. The resettable magnetoresistance fuse is electrically connected to a power supply circuit or a device to be protected by means of a main input pad and a main output pad and electrically connected to a reset pulse circuit by means of a reset input pad and a reset output pad. The magnetoresistance fuse comprises one or more magnetic hysteresis magnetoresistance units, a main current conductor, a reset current conductor, a switch unit, and a control logic unit, wherein any one of the magnetic hysteresis magnetoresistance units has two magnetic states, i.e., magnetic state 0 and magnetic state 1; and an input end, an output end, a first intermediate end, and a second intermediate end of the main current conductor are electrically connected to the main input pad, the main output pad, an input end of the switch unit, and an output end of the switch unit, respectively. The magnetoresistance fuse has the advantages of a simple structure, a memory function, a low price, etc.

A variable resistor 1A includes a base 11, a plurality of comb-like-pattern members 45a to 45j supported by the base 11 and extending with intervals therebetween, and a first resist layer 20 disposed on the base 11 such that spaces between the comb-like-pattern members 45a to 45j are filled with the first resist layer 20. The comb-like-pattern members 45a to 45j include upper surfaces 46 on a side opposite to the base 11, and the upper surfaces 46 are exposed through the first resist layer 20.

The utility model discloses a winding safety type resistor, which belongs to the field of resistors and comprises a base, the left end and the right end of the base are fixedly connected with power connection assemblies, a resistor adjusting assembly is arranged at the top end of each power connection assembly and located at the top end of the base, and a resistor body is mounted at the lower end of each resistor adjusting assembly. The resistor main body is matched with the base and the power connection assembly; the resistance adjusting assembly comprises a support, the support is installed at the top end of the base and fixedly connected with the base, a plurality of bolts distributed at equal intervals are arranged in the middle of the top end of the support, the bottom ends of the bolts penetrate through the top end of the support and extend into the support, the bolts are in threaded connection with the support, and the bottom ends of the bolts are rotationally connected with connecting sleeves. According to the technical scheme, the resistor is characterized in that a plurality of resistor bodies are independently connected with a power connection assembly through cooperation of all parts of a resistor adjusting assembly, so that the connection amount of the resistor bodies and the power connection assembly is conveniently controlled subsequently, and the resistance changing effect is achieved.

A laminated varistor includes a sintered body and first to third internal electrodes provided inside the sintered body. The first internal electrode includes a first facing part facing the third internal electrode in a third direction, and a first connecting part connecting the first facing part and the first external electrode. The second internal electrode includes a second facing part facing the third internal electrode in the third direction, and a second connecting part connecting the second facing part and the second external electrode. The first connecting part includes a first connection portion connected to the first external electrode, and a first narrow part having a dimension in a second direction smaller than the first connection portion. The second connecting part includes a second connection portion connected to the second external electrode, and a second narrow part having a dimension in the second direction smaller than the second connection portion.

A variable capacity stack-type brake resistor including at least one resistance module having one or more heating elements therein, one control module including a substrate electrically connected to the heating elements, an inlet port connected to a fluid inlet on one side of the resistance module, and an outlet port connected to a fluid outlet on the other side of the resistance module, wherein the resistance module is provided in a box shape with flat upper and lower surfaces, and the control module is assembled in a stacked manner on the upper surface of the resistance module. According to the brake resistor, total capacity (capacity to consume energy) may be changed as desired by adjusting the number of resistance modules assembled in a stacked manner as needed, thereby satisfying the required specifications and responding quickly to requests for specification changes without major replacement or changes to production equipment.

The utility model relates to a resistor chain, in particular to a space-adjustable flexible resistor chain, and aims to solve the technical problem that an external resistor chain of a middle storage switch is easy to shift and contact a peripheral pull rod of the middle storage switch to cause surface flashover. The utility model comprises n resistors, (n + 1) locking units and (n-1) sleeves, wherein n is an integer and is not less than 2; the n resistors are sequentially connected through the n-1 locking units and the n-1 sleeves to form a resistor assembly, and the two ends of the resistor assembly are connected with the supporting column balls through the locking units respectively. The locking unit comprises a female joint, a locking nut, a joint ball and a joint rod; the joint ball is fixedly connected with one end of the joint rod; one end of the female joint and the joint ball form a universal joint structure through a locking nut, and the other end of the female joint is connected to one end of a resistor in a sleeved mode. The other end of the joint rod located between every two adjacent resistors is fixedly connected with one end of the other resistor through a sleeve, and the other ends of the two joint rods located at the two ends of the resistor assembly are directly and fixedly connected with the supporting column ball.

The present application relates to the technical field of resistance, in particular to a kind of adjustable and easy-to-install band resistor, including string pole, multiple limit rings and multiple resistance bands, limit ring is sleeved in string pole outside, the two ends of each resistance band are respectively clamped by different adjacent two limit rings, limit ring is mutually electrically conducted with the end portion of clamped resistance band;It also includes the first driving member of driving string pole axial movement and the second driving member of driving string pole rotation;The outside of string pole is equipped with multiple clamping protrusions, and the end portion of each resistance band is equipped with clamping slot;The first driving member drives string pole axial movement, to make multiple clamping protrusions of string pole and odd order resistance band be peripherally clamped, and switch to and even order resistance band is peripherally clamped;The second driving member drives string pole rotation preset angle, to make odd order resistance band and even order resistance band be staggered arrangement, or drive the resistance band that is clamped continues rotation.Compared with prior art, it is easy to adjust and easy to install.

The utility model provides a structure beneficial to three-phase direct-current resistance balance, which belongs to the technical field of transformer three-phase direct-current resistance balance and comprises a bottom plate. The blocking plate comprises an A-phase winding, a B-phase winding and a C-phase winding, and the blocking plate, the A-phase winding, the B-phase winding and the C-phase winding are all connected to the upper end of the bottom plate; the sealing plate is fixedly connected to the upper end of the bottom plate, the sealing plate is matched with the blocking plate, the A-phase winding, the B-phase winding and the C-phase winding are all connected to the blocking plate at the upper end of the bottom plate, and the sealing plate is used in a matched mode, so that resistance balance among three phases can be effectively guaranteed.

A memory device includes a first chip, a second chip and a processor. The second chip is coupled to the first chip at a first node. The second chip includes a first capacitor and a first variable resistor. The first capacitor is coupled to the first node. The first variable resistor is coupled in series with the first capacitor. The processor is coupled to the first node, and is configured to perform a first read operation to the first chip via the first node. A method for operating a memory device is also disclosed herein.

The present invention provides a resistance adjustment system, comprising: a server, a control unit communicatively connected to the server, and a resistor array whose two ends are communicatively connected to the server and a device to be used, respectively. The server includes a processor and a memory storing a computer program. The control unit includes a circular platform, a partially annular positive plate, a fixing member, m first magnets, a support rod, a knob, a fixing rod, a second magnet, m mutually connected partially annular negative plates, and also stores a capacitor-relay correspondence table. When the processor executes the computer program, the following steps are implemented: when the knob is rotated to a preset knob position, a target capacitance value generated by the partially annular positive plate and the partially annular negative plate at that position is obtained; based on the capacitor-relay correspondence table, a target solid-state relay corresponding to the target capacitance value is obtained; and the target solid-state relay is switched to an operating state, thereby avoiding problems such as reduced accuracy caused by mechanical wear.

The invention discloses an adjustable device for an aging resistor of a vacuum arc-extinguishing chamber of a high-voltage switch. The adjustable device comprises the aging resistor, a pulley and a rope, the plurality of aging resistors are sequentially and vertically overlapped, and resistor grading rings are arranged between the adjacent aging resistors and at the end parts of the aging resistors; the pulleys comprise top pulleys and bottom pulleys; the top pulley is positioned above the top aging resistor, and the bottom pulley is positioned below the bottom aging resistor; the ropes comprise insulating ropes and steel wire ropes; the insulating rope and the steel wire rope are connected end to end to form a ring; a rope penetrating hole is formed in the surface of the resistance grading ring; the rope is connected with the top pulley and the bottom pulley in a sleeved mode and sequentially penetrates through the rope penetrating holes of the resistance grading rings. According to the aging resistance adjustable device, the resistance value can be adjusted, the frequency of resistor replacement and test wiring is reduced, and the test efficiency is improved.

The invention discloses a resistance type burning and adjusting circuit structure, electronic equipment and a burning and adjusting method, and aims to overcome the defect of low burning and adjusting precision of the existing resistance burning and adjusting technology. The structure comprises a resistor network module which is used for providing an adjustable resistance value and comprises three resistors connected in series and in parallel, and the resistor with the maximum resistance value is a burnt resistor; the adjusting assembly module is used for changing the equivalent resistance value of the resistor to be burnt and adjusted; and the probe interface module is used for providing a physical connection interface for external test equipment and an internal circuit. Aiming at the defects of a conventional burning and adjusting structure, a single resistor for determining the step length of a single step is changed into a mode of connecting three resistors in series and parallel, the step length is jointly determined by the three resistors, meanwhile, the resistor to be burnt and adjusted is designed to be the resistor with the large resistance value in the three resistors, and overcurrent damage caused by the fact that the single resistor is too small in the conventional structure is avoided.

Method for producing an SMD-solderable component (5), wherein the SMD-solderable component (5) comprises: -a first contact element (2a) and a second contact element (2b), wherein the first contact element (2a) and the second contact element (2b) are provided for soldering onto contact surfaces provided for this purpose on a surface of a printed circuit board (18), -a first connection surface (3a) and a second connection surface (3b), wherein the first connection surface (3a) is formed by an end face (SF) of the first contact element (2a), and wherein the method comprises the steps of: A) providing a plurality of nanowires (ND) on the first connection surface (3a) and on the second connection surface (3b); B) aligning the first connection surface (3a) and the second connection surface (3b) such that the first connection surface (3a) and the second connection surface (3b) face each other; C) merging the first connection surface (3a) and the second connection surface (3b), in which the plurality of nanowires (ND) of the first connection surface (3a) is brought into contact with the plurality of nanowires (ND) of the second connection surface (3b), wherein, during the joining, a non-detachable electrically conductive first connection (4a) is produced between the first connection surface (3a) and the second connection surface (3b) in such a way that a predeterminable contact resistance is present between the first contact element (2a) and the second contact element (2b).

In a multi-directional input device, an upward convex spherical trapezoidal portion 410 is provided at a lower end of an operation shaft 400 projecting downward of a lower arm 300, a receiving portion 112 for the upward convex spherical trapezoidal portion 410 is provided in a case 100, the receiving portion 112 has a receiving surface 112a configured with a spherical surface having a radius of curvature identical to a radius of curvature of a spherical zone 411 of the upward convex spherical trapezoidal portion 410, the receiving surface 112a against which the spherical zone 411 of the upward convex spherical trapezoidal portion 410 is pressed downward by a compression coil spring 600, and the operation shaft 400 is supported to be rotatable around the center of curvature of the receiving surface 112a.

The present invention relates to a resistor unit, a resistor assembly, and a battery pack, and more particularly to a resistor unit that can be connected and disconnected, a resistor assembly in which a plurality of such resistor units are connected, and a battery pack in which such a resistor assembly is installed. A resistor unit according to one embodiment of the present invention includes a first resistor portion formed extending in a first direction, a second resistor portion formed extending in a second direction, a case housing the first resistor portion and the second resistor portion, and terminal portions connected to one or more of the ends of the first resistor portion and the second resistor portion, with a portion of which protrudes outside the case. Openings are formed in the portions of the case facing the other end of the first resistor portion and the other end of the second resistor portion. As a result, multiple resistor units can be connected and separated in the first and second directions, and therefore, resistors with a variety of specifications can be provided without restricting the space in which the resistors are installed.

A memory device includes a first chip, a second chip and a processor. The second chip is coupled to the first chip at a first node. The second chip includes a first capacitor and a first variable resistor. The first capacitor is coupled to the first node. The first variable resistor is coupled in series with the first capacitor. The processor is coupled to the first node, and is configured to perform a first read operation to the first chip via the first node. A method for operating a memory device is also disclosed herein.

The utility model discloses a remote programmable resistor, which belongs to the technical field of electronic information and consists of a main control module, a resistor module, a relay module, a state acquisition module, a man-machine interface module, an RS485 module, an Ethernet module and a power supply module. The main control module controls the output resistance value of the resistance module through the relay module, calculates the actual output resistance value of the resistance module through the state acquisition module, realizes local setting and display of the resistance value through the man-machine interface module, and realizes two remote modification setting and reading of the resistance value through the RS485 module and the Ethernet module; the power supply module has power supply conversion and backup lithium battery management functions, and provides a direct current power supply for each module; the resistance range, precision and power of the same resistor can be flexibly changed according to requirements, the resistor has the functions of local and remote simultaneous monitoring and resistance change, the application scene is expanded, the utilization rate is improved, and the purchase cost is saved.

The present application relates to the technical field of resistance, in particular to a kind of adjustable resistance of impact resistance, including support component and resistance component, support component includes insulated support matrix, support matrix is distributed with multiple support arms around circumference, support arm is provided with multiple positioning slots arranged in the inside and outside separation;Resistance component includes multiple resistance sheets, the two sides of multiple resistance sheets are embedded in the positioning slot of adjacent two support arms, and multiple resistance sheets between adjacent two support arms are arranged in the inside and outside separation;The middle part of each resistance sheet is provided with separation groove, separation groove is blind slot only through the end of resistance sheet, and resistance sheet is divided into first current-limiting part, series part and second current-limiting part, series part is located at the bottom of blind slot to connect first current-limiting part and second current-limiting part;First current-limiting part and second current-limiting part are respectively connected with lead-out terminal.Compared with prior art, it is convenient to install and disassemble.Moreover, resistance value of each resistance sheet can be adjusted arbitrarily according to the need to access current loop, and it is convenient to use.