363results about "Ohmic-resistance heating circuits" patented technology

The invention relates to the technical field of engine blades, and discloses an electric heating assembly for ice prevention and removal of an engine blade and a preparation method and application of the electric heating assembly. The electric heating assembly and the engine blade are conformal, the long edge of the short axis direction of the engine blade is parallel to the first direction, and the second direction is perpendicular to the first direction; the electric heating assembly comprises a plurality of electric heating pieces which are sequentially arranged in the second direction and connected through a parallel circuit, each electric heating piece is provided with two second edges oppositely arranged in the second direction, and the second edges are parallel to the first direction; the electric heating piece comprises a conductive fabric, and the conductive fabric comprises a fiber fabric and a graphene electric heating layer conformally wrapping the fiber fabric. The electric heating assembly has good heat distribution uniformity, and the anti-icing and de-icing effects of the engine blade can be improved.

The invention relates to the technical field of PTC heaters, in particular to a PTC heater output power control method and system, and the method comprises the steps: obtaining the target power, the high-voltage current value and the high-voltage voltage value of a PTC heater, calculating the difference value between the current output power of the PTC heater and the target power, and dynamically adjusting the PID parameters of a PID controller according to the difference value. Finally, the output power is stabilized to the target power, the core of the method is to realize the function of dynamically adjusting the PID parameters, and the problem of overlarge power fluctuation caused by the change of environmental factors can be effectively solved; compared with traditional fixed PID parameter control, the method has the advantages that when environmental factors change, the output power can be stabilized to the target power within a short time through dynamic adaptation of parameters, the flexibility of a closed-loop control system is remarkably improved, and stable operation of the PTC heater under complex working conditions is guaranteed.

An aerosol-generating device is provided, including: a first power supply and a second power supply; and electric circuitry including a controller to supply electrical energy from the first and the second power supplies to an electric heater, the first and the second power supplies are different types of power supplies, the first power supply being a Li-NMC, a Li-LCO, a Li-NCA, or a LiPo battery, the second power supply being a LiFePO4 battery, the controller to provide power to the heater according to a predetermined heating profile including at least first and second heating stages in which a different amount of heating power is provided to the heater, the first heating stage being a preheating stage for preheating the at heater up to an operation temperature, and the second heating stage being an operation stage in which the device is configured to generate an inhalable aerosol.

Flash Joule heating (FJH) for production of one-dimensional (1D) carbon and / or boron nitride nanomaterials, and 1D materials integrated with 0D, 1D, 2D, and 3D nanomaterials, composites, nanostructures, networks, and mixtures thereof. Such materials produced by FJH include 1D carbon and hybrid nanomaterials, boron nitride nanotubes (BNNTs), turbostratic boron-carbon-nitrogen (BCN), doped (substituted) graphene, and heteroatom doped (substituted) re-flashed graphene.

A system, including a ceramic base and a resistive heating trace embedded in the ceramic base. The resistive heating trace includes a plurality of elongated parallel trace segments, where each trace segment extends across a major surface of the ceramic base. The resistive heating trace further includes a first terminal coupled to a first elongated parallel trace segment of the plurality of elongated parallel trace segments and disposed a first radial distance from a center of the ceramic base. The resistive heating trace further includes a second terminal coupled to a second elongated parallel trace segment of the plurality of elongated parallel trace segments and disposed a second radial distance from the center of the ceramic base.

A nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat nicotine pre-vapor formulation. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.

A thermal gradient management assembly comprising a functional component. The functional component includes an exterior facing segment, where the exterior facing segment is configured to experience aerodynamic heating, and an interior segment with the exterior facing segment, where the interior segment is configured for isolation from the aerodynamic heating. The functional component includes a thermal gradient extending between the exterior facing segment and the interior segment. The thermal gradient management assembly also comprises a gradient mitigating heating system includes a power source and a gradient heating element in communication with the power source, wherein the gradient heating element is coupled with the interior segment. The gradient heating element is configured to diminish the thermal gradient between the exterior facing and the interior segments.

Features relating to a cartridge for use with a vaporizer body are provided. The cartridge mates with the vaporizer body in a cartridge receptacle. The cartridge may include a cartridge body defining a reservoir configured to contain vaporizable material; a mouthpiece coupled to a proximal end region of the cartridge body; at least one proximal absorbent pad wedged within an internal volume of the mouthpiece; a mouthpiece seal with sealing ribs; a cannula defining a vaporization chamber extending through the cartridge body; a resistive heating element; a porous wick configured to draw the vaporizable material in the reservoir towards the vaporization chamber; an internal sealing gasket positioned in a distal end region of the cartridge body; a lower support structure positioned in the distal end region of the cartridge body; and at least one distal absorbent pad configured to wedge within a recess located in the lower support structure.

A system and a method for controlling a power MOSFET for limiting electromagnetic interference from a load is provided. The system and method include a pulse-width-modulated (PWM) control voltage to operate the power MOSFET in accordance with its Ohmic region (linear mode). By operating the power MOSFET in its Ohmic region, the electromagnetic field generated by the load is reduced, without requiring a dedicated DC / DC converter that would otherwise increase the cost, size, and weight of the power electronics.

A heater includes a plurality of heat-generating cells partitioned by a boundary line arranged on a base body, and includes one resistive heating wire formed in each heat-generating cell and having a zig-zag shape as a whole, the resistive heating wire formed by connecting a parallel wiring and a turn-back wiring formed so as to turn back the parallel wiring in a vicinity of the boundary line between adjacent heat-generating cells. In the adjacent heat-generating cells, the resistive heating wire of a heat-generating cell has an extension portion extending the parallel wiring past the boundary line, and the resistive heating wire of the other heat-generating cell is shortened or deformed so that a wiring of a portion facing the extension portion maintains an electrical insulation with the extension portion. The resistive heating wires of the adjacent heat-generating cells include extension portions alternately in a boundary line direction.

Systems, devices, and techniques for heating a sample are described. A heating assembly can include a membrane. The membrane can include carbon nanotube material. The heating assembly includes a support, mechanically coupled with the membrane. The support can be configured to integrate with a charged particle beam system. The heating assembly also includes a heating circuit, electrically coupled with the membrane. The heating circuit can be configured to direct an electrical current through the membrane.

A heating device comprises a support, an electrically insulating base insulation layer, and at least one heating conductor circuit on this base insulation layer. The heating conductor circuit includes at least one heating conductor and electrical connections thereon. An electrically insulating secondary insulation layer is arranged on the support below the base insulation layer and between the base insulation layer and the support. An electrically conductive conductive layer is distributed over the substrate such that the base insulation layer is directly adjacent to the conductive layer. A protective earth (PE) connection is provided on the support or on the secondary insulation layer and is connected to ground. A fusible link is provided between the conductive layer and the support or the PE connection, respectively, as the sole electrical connection between the conductive layer and the support or the ground connection.

The invention discloses a stretch-resistant bending-resistant cable and temperature control type production equipment thereof, and relates to the technical field of stretch-resistant bending-resistant cables and temperature control type production equipment thereof.The cable is segmented in the axial direction, a pixelated heating ring belt base body is arranged outside a main conductor bundle in each segment, a fan-shaped cavity is formed in the base body, and Bi-Sn arc segment pixels are embedded in the fan-shaped cavity; the two layers of flexible printed electrode sleeves form an A-layer axial bus and a B-layer axial bus, the A-layer axial bus and the B-layer axial bus are connected with the arc section only in the section in a penetrating welding hole mode, and no middle hole exists outside the section and electrical interruption is achieved. And the dielectric isolation film realizes interlayer insulation. And the gating target section and the angle belt are connected in parallel for heating, so that the Bi-Sn is subjected to phase change softening and then is cured for shape locking, and local thermal shaping and peak clipping stress are completed. And an elastic encapsulating layer, a mechanical bearing and balancing base layer and a temperature bar code residual stress sheath are coated outside, and are matched with weaving and an outer sheath to prolong the fatigue life. The production equipment comprises an extrusion station, an embedding station, a rolling and welding station, a bar code writing station, an online detection station and a take-up section cutting station, and machine vision alignment ensures in-section conduction and inter-section isolation.

Disclosed is an aerosol-generating device comprising: a heating unit for heating an aerosol source; a first temperature sensor for measuring a temperature change at a measurement site associated with heating by the heating unit; the first AD conversion circuit is used for converting the output voltage of the first temperature sensor into digital data; the second temperature sensor is used for measuring the temperature change of the heating unit; and a second AD conversion circuit for converting an output voltage of the second temperature sensor into digital data, in which the first AD conversion circuit has a higher conversion accuracy than the second AD conversion circuit, and the second AD conversion circuit has a faster conversion speed than the first AD conversion circuit.

A method for controlling a temperature of a heater including a resistive heating element includes measuring a voltage count and a current count based on data from an analog-to-digital converter (ADC) circuit of a sensor circuit electrically connected to the heater, the method includes selecting one or more dynamic gain levels for the ADC from among a plurality of dynamic gain levels based on a shift gain correlation, determining a resistance value of the resistive heating element based on the voltage count, the current count, and the one or more dynamic gain levels, and controlling power to the heater based on the resistance value.

Various articles and methods for controlling an amount of thermal energy generated by the articles are disclosed herein. For example, an article can include a power source and a flexible circuit electrically coupled to the power source. The flexible circuit can include a trace including a deformable conductor. The trace can define a plurality of switchbacks. The plurality of switchbacks can be configured to generate a predetermined amount of thermal energy when a voltage from the power source is applied to the trace.

The present invention provides a heating apparatus for heating a load. The heating apparatus comprises a heater having a heating element for receiving electrical power and for converting the electrical power into heat to heat a heating surface of the heater. The heating apparatus also comprises a temperature sensor for sensing and outputting a measurement of the temperature of the heating element, a power actuator for providing the electrical power to the heating element of the heater, a power sensor for sensing and outputting a measurement of the power provided to the heating element by the power actuator, and control circuitry for controlling the power actuator to control the power delivered by the power actuator to the heating element. The control circuitry is configured to receive the temperature measurement from the temperature sensor, receive the power measurement from the power sensor, combine the temperature measurement and the power measurement, and control the power actuator in dependence upon the combined temperature measurement and power measurement. This ensures that the temperature of the heating surface is constant throughout a period when the load is applied.

The present invention provides a heating apparatus for heating a load. The heating apparatus comprises a heater having a heating element for receiving electrical power and for converting the electrical power into heat to heat a heating surface of the heater. The heating apparatus also comprises a temperature sensor for sensing and outputting a measurement of the temperature of the heating element, a power actuator for providing the electrical power to the heating element of the heater, a power sensor for sensing and outputting a measurement of the power provided to the heating element by the power actuator, and control circuitry for controlling the power actuator to control the power delivered by the power actuator to the heating element. The control circuitry is configured to receive the temperature measurement from the temperature sensor, receive the power measurement from the power sensor, combine the temperature measurement and the power measurement, and control the power actuator in dependence upon the combined temperature measurement and power measurement. This ensures that the temperature of the heating surface is constant throughout a period when the load is applied.

A liquid heating appliance for making a beverage, the liquid heating appliance comprising: a plurality of heating components for heating a liquid, where at least a first of the plurality of heating components is powered using mains power, a power management system, wherein the power management system comprises: a controller, and an energy storage device, wherein the controller is arranged to: control an amount of the mains power applied to the first of the plurality of heating components, control an amount of stored power from the energy storage device to be applied to at least a second of the plurality of heating components, and switch polarity of the voltage of the stored power from the energy storage device to be applied to the second of the plurality of heating components after one or more heating cycles associated with the second of the plurality of heating components.

To provide a device that generates inhalable aerosol.SOLUTION: A device 100 includes: a heater that is configured to generate inhalable aerosol and is configured for at least ON mode and standby mode; at least one sensor that includes at least one of an accelerometer and a vibration sensor and is configured to detect the movement of the device; and a controller that is configured to shift from the standby mode to the ON mode on the basis of the at least one sensor having detected the movement of the device.SELECTED DRAWING: Figure 1

A control system includes a controller that is configured to determine a differential current of a heater based on a difference between a power conductor current of the heater and a neutral conductor current of the heater, determine whether the differential current of the heater is greater than a threshold differential current, and selectively perform a corrective action in response to the differential current being greater than the threshold differential current.

A heat generating body (100, 200), a heat generating assembly (10, 20) and a heating device. The heat generating body (100, 200) comprises a base body (110, 210), a heat generating circuit (130, 230) and a temperature measuring circuit (150, 250). The base body (110, 210) is provided with a bottom surface (115), the base body (110, 210) is provided with a heat generating area (119, 319) and an electrode arrangement area (117) adjacent to the heat generating area (119, 319), and the electrode arrangement area (117) is close to the bottom surface (115) compared with the heat generating area (119, 319); the heat generating circuit (130, 230) is located on the base body (110, 210), and the heat generating circuit (130, 230) comprises a heat generating part (131, 231) and a heat generating electrode (133, 233) electrically connected to the heat generating part (131, 231), the heat generating part (131, 231) being located in the heat generating area (119, 319), and the heat generating electrode (133, 233) being located in the electrode arrangement area (117); the temperature measuring circuit (150, 250) is located on the base body (110, 210), the temperature measuring circuit (150, 250) and the heat generating circuit (130, 230) are arranged spaced apart, and the temperature measuring circuit (150, 250) comprises a temperature measuring part (151, 251, 351) and a temperature measuring electrode (153, 253) electrically connected to the temperature measuring part (151, 251, 351); and the heat generating area (119, 319) comprises a high-temperature area (119a), and the temperature measuring part (151, 251, 351) is located in the high-temperature area (119a). In an initial heating stage of the heat generating body (100, 200), the deviation between an actual temperature and a planned temperature is small.

Systems, devices, and techniques for heating a sample are described. A heating assembly can include a membrane. The membrane can include carbon nanotube material. The heating assembly includes a support, mechanically coupled with the membrane. The support can be configured to integrate with a charged particle beam system. The heating assembly also includes a heating circuit, electrically coupled with the membrane. The heating circuit can be configured to direct an electrical current through the membrane.

The application provides an automatic snow-melting and deicing shutter, which comprises a shutter body and a heating unit, the shutter body comprises a frame body, a plurality of air guide grids and a plurality of dust collection grids, the plurality of air guide grids are arranged in parallel along the length direction of the frame body, and both ends of each air guide grid are connected with the frame body; the plurality of dust collection grids are arranged in parallel along the length direction of the frame body, and both ends of each dust collection grid are connected with the frame body, and one dust collection grid is arranged between any two adjacent air guide grids; the heating unit comprises a power supply, a control member and a heating assembly, the heating assembly is connected with the power supply through an electric circuit, and the control member is arranged between the heating assembly and the power supply; the heating assembly comprises a plurality of heating members, the number of the heating members is the same as that of the air guide grids, and the heating members and the air guide grids are arranged in one-to-one correspondence. The application provides an automatic snow-melting and deicing shutter which has the advantages of simple structure, high automation degree, easy maintenance, high reliability and high thermal efficiency.

A power supply unit (110) of an inhalation device (100) comprises: a power source unit (111C) capable of supplying power to a heating unit (121C) for heating at least one of a stick-type substrate (150) and a flavor source (131); a sensor FPC (73) having a stick detection sensor (12), an inhalation sensor (13), and a case temperature sensor (14) mounted thereon or electrically connected thereto; and a case (20). A first wiring layer (73L1) and a second wiring layer (73L2) are stacked in the sensor FPC 73). In a case-facing region (73A) of the sensor FPC (73), a wiring area of signal wiring (733) formed on the layer, out of the first wiring layer (73L1) and the second wiring layer (73L2), on the side closer to the case (20) is smaller than a wiring area of the signal wiring (733) formed on the layer on the side further from the case (20).

Provided is a ceramic heater in which damage due to temperature distribution of center cooling is less likely to occur without impairing the function of an RF / ESC electrode. The ceramic heater comprises: a ceramic plate having a first surface on which a wafer is placed and a second surface which faces the first surface; a first RF / ESC electrode which is embedded in the ceramic plate in parallel to the first surface; a second RF / ESC electrode which is electrically connected to the first RF / ESC electrode and is embedded in parallel to the first surface at a depth position, in the ceramic plate, apart further from the first surface as compared to the first RF / ESC electrode; an RF / ESC rod which has one end electrically connected to the second RF / ESC electrode and the other end extending to the outside of the ceramic plate from the second surface; an RF / ESC terminal hole which is a bottomed hole provided from the second surface of the ceramic plate toward the second RF / ESC electrode in the thickness direction and to which the tip portion of the RF / ESC rod is inserted; and a heater circuit which is embedded at a depth position, in the ceramic plate, closer to the second surface as compared to the second RF / ESC electrode. The distance between the center lines of the first RF / ESC electrode and the second RF / ESC electrode is 2-7 mm. The distance from the first surface to the bottom of the RF / ESC terminal hole is 4-9 mm.

A heater drive controlling apparatus for an electronic component testing apparatus includes a breaker disposed between a power source and heaters, and a controller that controls electric currents supplied from the power source to the heaters in order according to a first priority set for the heaters such that a sum of the supplied electric currents is within a rated current of the breaker. The electronic component testing apparatus includes a test chamber, a thermal-stress applying chamber, and a thermal-stress removing chamber each of which includes the heaters.

[Problem] To provide a mechanism capable of further improving heating efficiency. [Solution] An aerosol generation system comprising: a power supply unit; a heating unit that heats an aerosol source contained in a base material using power supplied from the power supply unit; and a control unit that controls the operation of the heating unit, wherein the control unit executes output control so as to increase the voltage applied to the heating unit per unit time with an increase in the temperature of the heating unit.

A processing apparatus is capable of efficient processing in a short time and obtaining a processed food product with exemplary quality.The processing apparatus includes a processing unit and a pair of electrodes. The processing unit is in a tubular shape, and an accommodation space capable of accommodating a material to be processed is formed as an internal space thereof, and includes a heating unit. A heating space constituting a part of the accommodation space is formed in the heating unit. The pair of electrodes are configured to clamp the material to be processed in the heating space for joule heating, and are configured to be movable from the heating space while clamping the material to be processed.