35results about How to "Constant operation" patented technology

A voltage trim circuit, in accordance with one embodiment of the invention, includes an operational amplifier, a transistor, a voltage divider and a bias current circuit. The operational amplifier is coupled to an input. The transistor is coupled to the operational amplifier and a first potential. The voltage divider circuit is coupled to the operational amplifier, the transistor and an output. The bias current circuit is coupled to the voltage divider circuit and a second potential. The voltage divider generates an output voltage as a function of a selectable divider ratio and provides a substantially constant feedback path to the operational amplifier. The bias current circuit provides for selectively adjusting a load resistance of the transistor to maintain a substantially constant load current through the transistor.

A workpiece processing system employs a common modular imaged optics assembly and an optional variable beam expander for optically processing multiple laser beams. In one embodiment, a laser and a fixed beam expander cooperate to produce a laser beam that propagates through a beam switching device to produce multiple laser beams that propagate along separate propagation path portions and subsequently merge into a common path portion through an imaged optics assembly and optional variable expander. The beam expander sets the shape of the laser beams in the form of a Gaussian spatial distribution of light energy. The imaged optics assembly shapes the Gaussian spatial distribution of the laser beams to form output beams of uniform spatial distribution. In an alternative embodiment, the beam switching device is removed and the laser beams propagate from separate laser sources associated with separate optional beam expanders.

A drive system for a grid blower of a vehicle is provided. The system includes: an electrical bus, a grid of resistive elements connected to the electrical bus, the grid of resistive elements configured to thermally dissipate electrical power generated from braking of the vehicle, the electrical power being transmitted on the electrical bus to the grid of resistive elements, an electrical power modulation device configured to modify electrical power received from at least one of the electrical bus and the grid of resistive elements, and a grid blower motor coupled to an output of the electrical power modulation device, wherein a speed of the grid blower motor varies based on the electrical power that has been modified by the electrical power modulation device.

A liquid separator system having a gas phase zone, an aqueous phase zone and a denser liquid zone is used to separate mixtures of fluids. The separator can be used for separating molten sulfur from liquid redox solution or reslurry water. The system includes a vessel with a top part and a bottom part. The vessel has a larger diameter at the top part than at the bottom part. The system also includes an inlet for introducing a redox solution or reslurry water and molten sulfur, which is denser than redox solution or reslurry water, into the vessel. An outlet near the bottom part of the vessel allows a flow of the molten sulfur from the vessel. An interface control structure senses an interface level between the redox solution or reslurry water and the molten sulfur, and the interface control structure controls the flow of molten sulfur from the outlet. The interface control structure is adjusted to optimally alter the vertical height of the interface level within the vessel so that the residence time of the molten sulfur in the vessel does not decrease as the sulfur production throughput decreases, and so that the interface area of the molten sulfur and the redox solution is reduced as the sulfur throughput decreases. A pressure controller monitors the pressure in the vessel and adds or removes gas from a gas phase zone in the vessel to maintain a predetermined pressure regardless of the vertical height of the interface.

An input circuit for a semiconductor integrated circuit in which an operational state is constant even when a process condition, a temperature, a voltage, and the like are varied at the time of operation is provided. The input circuit includes a first input unit that performs a first amplifying operation on a potential difference between a reference voltage and an input signal and outputs a result of the amplification, and a second input unit that performs a second amplifying operation on a signal amplified by the first input unit and outputs a result of the amplification.

The invention relates to the technical field of wind-driven power generator sets, and particularly discloses a hydraulic transmission system for transmitting the power generated by a wind wheel of a wind-driven power generator set to a power generator, wherein the hydraulic transmission system comprises a first hydraulic pump and a hydraulic motor; the power input end of the first hydraulic pump is connected with a wind wheel main shaft; the oil inlet of the first hydraulic pump is communicated with an oil tank, and the oil outlet of the first hydraulic pump is communicated with the oil inlet of the hydraulic motor; the oil outlet of the hydraulic motor is communicated with the oil tank; the power output end of the hydraulic motor is communicated with the power input end of the power generator; and an oil channel between the first hydraulic pump and the hydraulic motor is provided with a speed regulating valve. No matter how the wind speed changes, the transmission system can always enable the power generator to operate always at a constant speed, and can enable the power and frequency of electricity to be constant. The invention also discloses a wind-driven power generator set.

The invention provides a train traction control method, which comprises the following steps: firstly, setting a to-be-achieved accelerated speed target value a1 and testing a present speed v of a train; acquiring an ideal torque F1(v) and a practical resistance n suffered by the train according to the accelerated speed target value a1 and the present speed v; calculating and acquiring a traction torque F2(v) practically required by the train for achieving the accelerated speed target value a1 according to F2(v)=F1(v)+nr; distributing the traction torque F2(v) practically required by the train to each traction driving device of the train. Through the process, the output power of a traction motor is continuously adjusted, so that the train can run at a constant accelerated speed, and the stability and comfort loss of the train and the burden of a driver during the running process caused by the continuous change of the accelerated speed are avoided.

The invention discloses a temperature control device for yielding water of a single-heat type heat pump water heater. A pipeline is connected with a heat storage water tank, a tee-joint proportioning valve, a heating water heat exchanger, a water pump and a yielding water constant temperature control module connected with the heat storage water tank, wherein the yielding water constant temperature control module is connected with an ambient temperature probe, and controls the switching on and off of the tee-joint proportioning valve; and an opening in the A-B direction of the tee-joint proportioning valve is communicated with a water inlet end, and an opening in the B-C direction is communicated with the heating water heat exchanger. In addition, the invention also discloses a temperature control method, the temperature of the heat storage water tank, the ambient and the heating water heat exchanger are subjected to sampling detection, and according to different ambient temperatures, different yielding water temperature values can be set, the switching on-off degree of the tee-joint proportioning valve is adjusted, the water feeding amount is adjusted by the temperature control regulating valve, so that the yielding water temperature of the heating water heat exchanger can reach the set value. The temperature control device can run with safety, stability and high efficiency, and meanwhile, the engineering installation is simple, the cost is low, and the supplied hot water is constant.

An un-pressurised chlorination device comprises a container having an open top closed by a removable lid. The container defines an inner chamber for a plurality of chlorination tablets. The container has a lower inlet spigot for receiving a water supply inlet pipe. The container also has a lower water outlet through which chlorinated water is delivered. There is a water flow path between the inlet and the outlet. The tablet chamber is not pressurised and the outlet discharges to atmosphere pressure. The device of the invention is useful for dissolving, dispersing and dispensing soluble material in tablet form into a liquid. There is a substantially horizontal fluid path with just enough fall to the outlet to allow the device to drain down out of the outlet when there is no inlet flow.

A method comprising receiving grouping information indicative of a timing advance group comprising a first cell and at least one second cell obtaining reliability information related to the first celland the at least one second cell for use as reference cell for downlink timing and/or timing advance and selecting a cell in the timing advance group a reference cell for downlink timing and/or timing advance based on the obtained reliability information.

Systems, apparatuses, and methods for reducing latency for wireless virtual and augmented reality applications are disclosed. A virtual reality (VR) or augmented reality (AR) system includes a transmitter rendering, encoding, and sending video frames to a receiver coupled to a head-mounted display (HMD). In one scenario, rather than waiting until the entire frame is encoded before sending the frame to the receiver, the transmitter sends an encoded left-eye portion to the receiver while the right-eye portion is being encoded. In another scenario, the frame is partitioned into a plurality of slices, and each slice is encoded and then sent to the receiver while the next slice is being encoded. In a further scenario, each slice is being encoded while the next slice is being rendered. In a still further scenario, each slice is prepared for presentation by the receiver while the next slice is being decoded by the receiver.

A medical or dental device for dispensing a powdered medium with a container for storing the powdered medium in a container interior space, wherein the container can be connected to a compressed gas source to convey the powdered medium together with the compressed gas out of the container interior space, and wherein the container can be connected to a dispensing unit, so that the powdered medium is conveyed with the compressed gas to the dispensing unit and can be dispensed by the dispensing unit, wherein the container comprises: a container wall, which defines at least a portion of the container interior space, and a container bottom that is connected to the container wall and has at least one bore through which compressed gas from the compressed gas source can be conducted into the container interior space, wherein a compressed-gas-permeable swirl plate made of a porous material is provided at the container bottom, wherein compressed gas can be conducted through the porous material of the compressed-gas-permeable swirl plate into the container interior space to aerate at least a portion of the powdered medium in the container interior space without conveying the powdered medium out of the container interior space to the dispensing unit.

According to the present invention, there is provided a washing machine including a bearing housing which is installed on a bottom surface of an outer tub, a clutch stopper which is installed on a bottom surface of the bearing housing, and a driving motor which includes a stator and a rotor which are coupled to a lower side of the clutch stopper, in which the clutch stopper includes a base portionwhich is disposed on the bottom surface of the bearing housing; and a fastening boss which extends from the base portion to the lower side by a predetermined length and is fastened to stator by a fastening member.

A shearing type feed mixing device, comprising a body, a feeding mechanism and a discharging mechanism are respectively arranged on the top and bottom of the body, a stirring mechanism is arranged in the body, and the stirring mechanism is driven by a driving mechanism; the stirring mechanism includes two rotation directions On the opposite rotor, each rotor includes a shaft, on which a mounting base is installed, and the mounting base is alternately provided with levers and grooves along the length direction, and a shearing disc is installed in the groove, and the shearing discs on the two rotors intersect. set, and the edge part overlaps on the horizontal projection plane. The shearing type feed mixing device provided by the invention can improve the uniformity of feed mixing by setting a feeding mechanism, a discharging mechanism and a stirring mechanism.

A remote driving device (100) includes an operation lever (1) to be operated based on an operation command signal, and a first operation mechanism (30) which tilts the operation lever (1). The first operation mechanism (30) includes a first actuator (31) which generates a driving force to tilt the operation lever (1) based on the operation command signal, a first transmission device (41) which transmits the driving force of the first actuator (31), a first detector (61) which detects a tilting amount of the operation lever (1), and a first drive shaft (51). On the first drive shaft (51), a first rotation output part (52) is provided, and the first drive shaft rotates with the tilting of the operation lever (1). The first detector (61) detects the tilting amount of the operation lever (1) via the first rotation output part (52).

The invention relates to the technical field of piezoelectric thin film, and discloses piezoelectric thin film sensitivity test method and equipment. The test method is applied to the piezoelectric thin film test equipment. The test equipment comprises a test table, a roller, a driving device and a test device, wherein the test table is provided with a bearing surface, the bearing surface is usedfor bearing a tested piezoelectric thin film and a reference piezoelectric thin film which are laminated, the driving device is used for driving the roller to move on the bearing surface, the test device comprises a controller, and the controller is connected to the tested piezoelectric thin film and the reference piezoelectric thin film. The test method comprises the steps that the controller controls the driving device to drive the roller to roll on the tested piezoelectric thin film and the reference piezoelectric thin film which are laminated; the controller acquires a first electrical signal waveform output from the tested piezoelectric thin film and a second electrical signal waveform output from the reference piezoelectric thin film; and the controller performs sensitivity test on the tested piezoelectric thin film according to the first electrical signal waveform and the second electrical signal waveform. With the test method and the test equipment, disclosed by the embodimentof the invention, the test method and the test equipment can be used for a long time, and an accurate test result is obtained.