35results 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.

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 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.

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 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.

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.

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 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.

The present invention relates to a temperature sensor (100, 110, 120, 130, 140, 150, 160, 170) comprising a substrate (10, 12, 14), a nanogranular sensor element (20) deposited on the substrate (10, 12, 14) and at least two electrodes (30, 12) electrically connected to the sensor element (20) to enable the measurement of temperature-dependent conductivity changes of the sensor element (20).

A temperature sensing device includes a resistor string and a control circuitry. The resistor string includes a variable resistor, a first resistor, and a second resistor which are coupled in series with each other. The resistor string is coupled between a sensing end and a reference ground voltage. The first resistor and the second resistor are coupled to a monitoring end to provide a monitoring voltage. The control circuitry compares the monitoring voltage with a plurality of reference voltages to generate sensing temperature information, and generate adjustment information according to the sensing temperature information. The control circuitry adjusts a resistance provided by the variable resistor according to the adjustment information. The first resistor is a polysilicon resistor, and the second resistor is a silicon carbide diffusion resistor.

The present disclosure relates to a resistance unit, a resistance assembly, and a battery pack, and more specifically, to a resistance unit that can be connected and separated, a resistance assembly in which a plurality of the resistance units are connected, and a battery pack in which the resistance assembly is installed. A resistance unit according to an embodiment of the present disclosure includes a first resistance portion formed to extend in a first direction, a second resistance portion formed to extend in a second direction, a case accommodating the first resistance portion and the second resistance portion, and a terminal portion that is coupled to at least one of one end of the first resistance portion and one end of the second resistance portion and partially protrudes to the outside of the case, wherein an opening is formed in each of the portions of the case facing the other end of the first resistance portion and the other end of the second resistance portion, so that a plurality of the resistance units may be connected and separated in the first direction and the second direction, thereby providing resistance of various specifications without limitation of the space in which the resistor is installed.

The utility model discloses a high-precision adjustable resistor. The high-precision adjustable resistor comprises a plurality of value selection resistor modules which are connected in series, a plurality of resistors are arranged between the input end and the output end of each value selection resistor module in a series connection or parallel connection mode, and the resistance value of the value selection resistor module can be switched and adjusted between zero and the maximum resistance value in a grading mode through switching selection of the selection switch. The resistance value adjusting ranges of the value selection resistor modules are set in a grading manner, so that the total resistance value of the resistor can be accurately adjusted after the value selection of the value selection resistor modules is respectively switched. According to the high-precision adjustable resistor disclosed by the utility model, higher-precision and quicker resistance adjustment is realized, so that the production efficiency is greatly improved.

The invention discloses a portable multifunctional dummy load resistor for pulse source debugging, and solves the problems that the resistance value of an existing resistive dummy load is unstable, or the rated power is low, and the large current impact stability is poor. The bottom end of the insulation outer cylinder is closed, the top of the insulation outer cylinder is covered with the grounding metal ring, the insulation inner cylinder is arranged in the insulation outer cylinder, the N resistor assemblies are arranged in the insulation outer cylinder and distributed around the insulation inner cylinder, and the high-voltage cable plug connector and the coil assembly are arranged on the top of the grounding metal ring. N > = 3; the device is compact in structure and flexible to move, can simultaneously realize three functions of dummy load, voltage measurement and current measurement, is suitable for debugging hundreds of kV pulse sources, and is convenient to carry.

A resistor trimming device comprising a resistor trimming unit is provided, which divides a single one adjustable resistor string into a plurality of adjustable resistor string groups, so that a resistance of the parallel resistor faced by a switch can be effectively reduced, and a design of the on-resistance and off-resistance of the switch can comply with a general design rule. In addition, the resistor trimming device provided further comprises a decoder. When trimming the overall resistance of an electronic device, a user can directly input a binary code or an original thermometer code used in the adjustable resistor string being not grouped, without knowing an encoding manner, and then, the decoder generates a trimming thermometer code and a group code to control a main switch and switches in the multiple adjustable resistor string groups being the grouped from the adjustable resistor string.

The invention discloses a drawing type modular resistor module bin supporting quick replacement, which comprises a mounting mechanism, the mounting mechanism comprises a mounting cabinet body, ventilation holes are formed in two sides of the mounting cabinet body, and a unit mounting cavity is formed in the mounting cabinet body; the invention belongs to the technical field of resistor module bins, and aims to solve the problem that in the prior art, the number of modules cannot be flexibly adjusted according to the project scale; the technical effects of the invention are as follows: the pull-out modular design and drawer-like interface innovation are realized, the practicability and flexibility of the resistor module bin are remarkably improved, the modular mounting bin is matched with the slide rails through the slide grooves, and the modular mounting bin is convenient to mount and demount, and has a good application prospect. And compared with a traditional fixed structure, the maintenance efficiency is remarkably improved.

The utility model provides a universal multi-contact variable resistance device. The universal multi-contact variable resistance device comprises contacts, a control button, a hierarchical circuit and a housing, the plurality of contacts are arranged in the transverse direction and the longitudinal direction, and a control button is arranged between every two adjacent contacts. The hierarchical circuit comprises a first layer of circuit, a second layer of circuit and a third layer of circuit, each layer of circuit comprises a connecting column and a contact, each contact is respectively connected with a plurality of connecting columns, a contact is arranged between every two adjacent connecting columns, and the contacts corresponding to every two adjacent contacts are electrically connected or disconnected. The connecting column is sleeved with a guide wire, the control button is connected with the guide wire, and the guide wire can be controlled to be electrically connected with different hierarchical circuits by pressing the control button. Different resistance values can be obtained in a series connection, parallel connection or series-parallel connection mode by connecting different contacts and pressing a control button between the contacts, different resistance values can be provided for a plurality of circuits at the same time under the condition of uninterruptible power supply, and the problem that a variable resistance device cannot provide various resistance values at the same time can be solved.

The present invention discloses a step-type rheostat and a replaceable accessory identification device. The replaceable accessory identification device includes a resistive stroke identification device. Specific positions of different replaceable accessories are set at different heights. When the replaceable accessories are installed on the equipment, each specific position causes the slider of the resistive stroke identification device to retract by a different stroke. The replaceable accessory is then identified based on the stroke signal generated by the resistive stroke identification device. Compared to pressure sensors, the use of a step-type rheostat and a resistive stroke identification device offers greater stability and a longer service life.