90 results about "Shunt types" patented technology

A dimming circuit for driving a string of LEDs at constant current has a power converter. A control circuit is coupled to the power converter. A plurality of shunt switches is provided. An individual shut switch is coupled to each LED. Each LED can be shunted individually by the individual shunt switch. The control circuit corrects an internal DC state based on a feedback signal V_O so that the output current of the power converter remains unchanged when at least one LED is shunted.

The invention discloses a shunting-type isothermal sulfur-tolerant conversion process. The process comprises the following steps: shunting raw coal gas from exterior into at least two parts; leading overheat stream in the first part of the raw coal gas to increase the temperature to 200-300 DEG C; and then entering a first-stage conversion reaction step to carry out a conversion reaction and generate first conversion gas; and conveying the other part of the raw coal gas to next-stage conversion reaction step to carry out a conversion reaction. The catalyst bed of a shift converter has the advantages of stable temperature, simple control, convenient operation and low output CO content. The invention has the advantages of short conversion flows, few equipment, reduced resistance, great byproduct stream amount, high overheat temperature, stream pressure and heat recovery rate, and the like, thereby achieving the aims of reducing conversion stages, equipment number and resistance fall, decreasing investment, having great byproduct stream amount and high overheat temperature, stream pressure and heat recovery rate, reducing conversion stream consumption and outward wastewater discharge, protecting the environment and easily maximizing the device equipment. The invention also discloses shunting-type isothermal sulfur-tolerant conversion equipment used by the process.

The invention relates to a taxi get-in station three-dimensional intelligent transportation system for a large traffic hinge. A passenger and taxi flow three-dimensional multi-exit manner is adopted; a shunt type traffic mode is respectively applied to a passenger flow and a taxi flow; an automatic detection and control device is respectively arranged at the exits of the passenger flow and the taxi flow so as to realize the automatic detection of the passenger flow and the taxi flow. Traffic light control and turnstile control are used for closed loop control so as to solve problem of the increasingly heavy traffic.

The invention discloses a BMS current detection unit automatic calibration device and calibration method. The automatic calibration device comprises an upper computer for controlling the whole matching calibration process and performing automatic calculation on the error offset and the gain; a program-controlled constant-current source which is controlled by the upper computer and connected with the upper computer, wherein the program-controlled constant-current source can be used to accurately output a preset current as the calibration signal source according the control command of the program-controlled constant-current source; and a communication module for establishing the data exchange channel between the upper computer and the current detection unit to acquire the detection value of the current detection unit and store the error offset and the gain into a nonvolatile memory in the current detection unit, and a current sensor, and a shunt is arranged between the current detection unit and the program-controlled constant-current source. The automatic calibration device provided in the invention has advantages of simple operation and high production efficiency, and can be used to avoid problems of reduced efficiency and easy misoperation after works work continuously. Moreover, the comparison between the single calibration result and the normal result is added, and the disordered shunt type problem can be avoided.

A shunt type voltage regulator circuit (300) can include a load supply circuit (306) and feedback circuit (308-0) that provide impedance modulated according to a first feedback circuit (308), thus limiting power consumption at higher power supply ranges. In addition, a faster regulation response can be provided by a current conveyor circuit (312′) that can force the voltage at a regulated load node (304) to match that at a replication node (316).

The invention relates to a shunt-type omnidirectional antenna array of three frequency bands of GSM (Global System for Mobile Communications) 850/DCS (Distributed Control System)/PCS (Personal Communication Service), belonging to the field of antenna designs. The antenna array is a three-frequency-band base station system used for supporting the GSM 850 (824-894MHz), the DCS (1,710-1,880MHz) and the PCS (1,850-1,990MHz) and has the advantages of miniaturization, omnidirectional coverage rate, low cost and high gain. The antenna array is characterized in that parallel feed networks are adoptedin parallel dual feed structures of both the front side and the back side of a printed circuit board, and the adopted parallel feed network can ensure all antenna array elements are excited in the same direction on the premise of no any phase shift, thereby the problem that a series-fed type array bandwidth is limited by the feed networks is solved. Meanwhile, a three-frequency-band omnidirectional array element is designed in a mode of chamfering a printed dipole, and a microstrip short-circuit line is connected to compensate the capacitive impedance of the DCS/PCS frequency bands, thus the high-gain omnidirectional base station antenna of three frequency bands of GSM 850/DCS/PCS is realized. The antenna array has the advantages of compact structure, miniaturization, easy integration andflexible design and is suitable for the design of a miniature multi-frequency-band high-gain base station antenna of a GSM 850/DCS/PCS system.

The present invention is a shunt-type, battery-charging device that (through the use of a power dissipation and/or power reduction system and/or method) is designed to reduce the likelihood of overcharging and the possible deleterious effects (and cooling requirements) associated with the generation of heat during the charging process. Generally, the power reduction system and/or method may control the amount of power being used by the battery charger by monitoring the batteries' level of charge during charging, and by correspondingly reducing the magnitude of the charging current in response to such monitored level.

A voltage regulator includes a constant current circuit which is connected between an input node with which a power supply voltage is supplied and an output node to which a load is connected and which supplies constant current to the output node. The voltage regulator also includes a first transistor which is provided in parallel to the constant current circuit and which flows insufficient current to the output node when current flowing through the load is larger than the constant current and a second transistor which is provided between the output node and a common potential node and which flows surplus current to the common potential node when current flowing through the load is less than the constant current. The voltage regulator also includes a control circuit which controls a conductive state of the first and the second transistors so that an output voltage of the output node is maintained at constant voltage.

A shunt-type filtering device with back wash function of the invention relates to a shunt-type liquid filtering device with back wash function. The invention is applicable to the liquid filtering field, in particular to filtering of water, oil and other liquid. The invention comprises a control valve, a filter flask, a filter element and a drain valve; the control valve is arranged at the upper part of the filter flask which is internally provided with the filter element, the lower part of the filter flask is provided with the drain valve; the drain valve is provided with a valve body which is internally provided with a piston cylinder, one side of the valve body is provided with a liquid inlet and a liquid outlet, the upper part of the valve body is provided with a valve head, an inner cavity of the valve head is provided with a barrel which is internally provided with a screw, and the lower part of the screw is provided with a piston which is arranged in the piston cylinder; the top of the screw is provided with a knob or a stepped motor; the bottom of the piston cylinder is provided with the filter element, one side of the piston cylinder is communicated with the liquid inlet, and one side of the upper end of the piston cylinder is provided with a notch which is communicated with the liquid outlet; the filter element comprises a filter screen bracket, a filter cover, a filtering membrane or a filtering screen; the bottom of the filter screen bracket is arranged on the bottom of the filter flask in a covering by the filter element, and the bottom of the filter flask is provided with a drain outlet which is communicated with the drain valve.

The invention relates to a split type automatic vertical drilling tool suitable for gas drilling, which is an anti-tilting drilling tool for oil-gas well drilling engineering, and comprises an upper joint, a shell, a lower joint, a core tube, an adjusting shim, a bearing, a baffle plate, a balancer, a deflector, a diverter and a valve. The drilling tool is characterized in that the upper joint, the shell and the lower joint are connected by screw threads; the adjusting shim, the bearing, the baffle plate, the balancer and the deflector are connected with the core tube in series; the diverter is fixed in the core tube by a bolt; and the valve is fixed on the shell. The split type automatic vertical drilling tool has wide application range, can adjust jet diameter by replacing the valve so as to adjust reacting force generated by jet airflow, has convenient operation, adopts the principle of gravity inductive inclination to carry out automatic induction and automatic inclination correction, does not need any extra operation, has the advantages of simple structure and good stability, adopts a mechanical structure, and has stable performance during use and long working life.

A multi-phase motor control apparatus that reduces the occurrence of the vibrations and the noises by setting the shift amount per time more finely after realizing a reduction in processing ability of a CPU by using a one-shunt type current detection circuit and an electric power steering apparatus using the same. The apparatus includes a PWM-signal generating section that generates plural second each-phase PWM-signals within two control periods based on the current estimation value and the carrier signal, and in a case that a phase shift amount of a predetermined phase in a just before control period is zero and a phase shift amount of a predetermined phase in a present control period is not zero, the phase shift control section gradually increases the phase shift amount from zero in the present control period and a next control period, and uses the second each-phase PWM-signals in the next control period.

The present invention discloses a shunt type air bath duct, which comprises a body and at least a shunt unit. The body is provided with at least one branch air outlet. The shunt unit and the branch air outlet are correspondingly arranged one-to-one. The height of the body is sequentially reduced along with the shunt unit. The shunt unit comprises a regulation member and a shunt piece, wherein the regulation member can be movably arranged on the body and connected with the shunt piece, and the shunt piece is parallel to the body. With the shunt type air bath duct of the present invention, flows of various branches can be regulated, the problem of mutual interference of branch flow regulation is solved, piezoresistance of the air bath system is reduced, and energy consumption is saved.

The invention relates to a dry-mixed mortar stirring device, and in particular relates to a shunting type elongated mortar stirrer, mainly aiming at solving the technical problems of incomplete stirring, poor viscosity of the mortar, construction difficulty and unstable mortar quality caused due to low stirring efficiency and excessively short stirring length of a stirrer in the prior art. The shunting type elongated mortar stirrer comprises a conveying cylinder body (1), wherein a conveying spiral shaft (2) is arranged in the conveying cylinder body (1); a conveying blade (3), which is spirally distributed, is arranged on the conveying spiral shaft; a feeding opening (4) is formed in the conveying cylinder body (1); the end of the conveying cylinder body is communicated with a stirring cylinder body (6) through a discharging opening (5); a rotation shaft (7) is arranged in the stirring cylinder body; the rear section of the rotation shaft is connected with a propelling blade (8); the front section of the rotation shaft is connected with a stirring blade (9); an unloading hopper (10) is connected to the end of the stirring cylinder body; the conveying spiral shaft and the rotation shaft are connected with a driving device (17).

The invention discloses a cooling device of a high-power solid laser. The cooling device of the high-power solid laser comprises a heat sink, a shunting type heat pipe and a cooling fan, wherein one side of the heat sink is in firm contact with gain medium of the high-power solid laser, and the other side of the heat sink is provided with a groove matched with the evaporation section of the shunting type heat pipe in shape; when the shunting type heat pipe is inserted in the groove of the heat sink, the condensing section of the shunting type heat pipe is located in the air, and the cooling fan accelerates the cooling of the condensing section. The cooling device of the high-power solid laser is capable of effectively lowering the gain medium temperature, reducing the thermal stress deformation of the gain medium due to uneven temperature and improving the laser beam quality and output power. The cooling device of the high-power solid laser overcomes the problems of water leakage, large volume, complex pipeline and the like which may be caused by the cooling mode of the prior art.

The invention relates to the technical field of electric vehicle hybrid power and discloses a continuous speed-changing shunt type hybrid power assembly. The assembly comprises a hybrid power module,an electric module and a shifting speed-changing module, wherein the shifting speed-changing module comprises a first input shaft, a second input shaft, a first shifting speed-changing mechanism, a second shifting speed-changing mechanism and an output shaft; one end of the first input shaft is connected to a power output end of the hybrid power module, the other end of the first input shaft is connected to the output shaft through the first shifting speed-changing mechanism, one end of the second input shaft is connected to a power output end of the electric module, and the other end of the second input shaft is connected to the output shaft through the second shifting speed-changing mechanism. The assembly can achieve the functions of pure electric driving, mixed driving, energy brake recovery, stepless speed changing and the like so that an engine and a motor can work in areas with high efficiency, and electric energy is saved; moreover, gearshifts shit gears alternatively and change the speed continuously, so that the shifting quality is effectively improved.

The invention discloses a shunting type cooling fan. The shunting type cooling fan comprises a frame body and a fan wheel contained in the frame body; the fan wheel is provided with a fan wheel center line arranged in the first direction; an air outlet is formed in one side of the frame body; a flow channel is formed in the frame body and located on the periphery of the fan wheel; and a plurality of flow deflectors used for evenly distributing air flow are installed in the flow channel in the advancing direction of the air flow. the flow deflectors are mounted in the flow channel, so that gas in the flow channel flows more uniformly; airflow vortexes are reduced; aerodynamic noise and vibration noise are reduced; a negative pressure area is balanced; and a larger actual air inlet area is guaranteed.

The invention discloses a shunting type high-speed tester, and belongs to the technical field of power equipment. The shunting type high-speed tester comprises a motor and a speed increaser, the speedincreaser comprises an input shaft, a first sun gear, a second sun gear, an output shaft and a plurality of planetary gear sets, and a planetary gear mechanism is adopted as a main part of the speedincreaser, so that the stability of power transmission is improved, power shunt and power confluence are realized, two-stage transmission is achieved accordingly, and the transmission ratio is increased; and meshing is achieved between the sun gears and planet gears through herringbone gear teeth, so that the transmission power of the planet gear mechanism is improved, and finally the output powerof the output shaft is improved. The combination of the planet gear mechanism and the herringbone gear teeth meets the requirement of the high-speed tester for high-speed and high-power output on thewhole.

The invention discloses a shunt type corrosion switch power feedback current sampling device, comprising a shunt panel, wherein, the upper part of the shunt panel is provided with a groove in which a sampling panel which is in series connection with a Hall sensor is arranged; the sampling panel is connected with the shunt panel. The shunt type corrosion switch power feedback current sampling device is reasonable in structure, and effectively lowers costs, reduces the structure volume and improves the efficiency of the power supply by using the small capacity Hall sensor to acquire heavy current signals.