30results about How to "Enables power regulation" patented technology

The invention discloses a light modulation circuit of an electromagnetic induction lamp which comprises a closed-loop light modulation control signal device, a lamp power feedback compensation device, a resistance-capacitance oscillation timer, a lamp current sampling signalizer and a lamp voltage sampling signalizer. The invention can realize the operation status monitoring and real time adjustment.

The invention relates to an energy-saving control method for a traffic signal control system, which solves the defects that the power reduction technology of the traffic signal control system is complicated or the function is not perfect compared with the prior art. The present invention comprises the following steps: obtaining the power adjustment demand plan; obtaining the initial current value of the signal lamp; sending out the power adjustment signal; the lamp control module receiving the power adjustment signal; Acquisition of adjusted current value; verification of power adjustment results. The invention realizes the power adjustment of the signal control equipment to the signal lamp equipment through the form of combined trigger pulse switch signal, and effectively realizes the energy saving and emission reduction of the signal control system.

The invention discloses an adaptive power-voltage droop control method and system of a DC power transmission system, belonging to the field of power transmission and distribution of power systems. Including: building the upper limit loop, lower limit loop and additional loop; the output power of the upper limit loop is multiplied by the adaptive power-voltage slope coefficient to obtain the first product, and the output power of the lower limit loop is multiplied by the adaptive power-voltage slope coefficient , to obtain the second product; add the first product and the second product, and the sum value is used as the output voltage of the first control branch, and the output voltage of the additional loop is directly used as the output voltage of the second control branch; when the second converter outputs active power The power is greater than or equal to the action power of the hysteresis comparator, and the output of the second control branch is taken as ΔU dc ; When the active power output by the second converter is less than or equal to the return power of the hysteresis comparator, the output of the first control branch is taken as ΔU dc ; the ΔU dc Sum the command value of the DC voltage of the high-voltage valve group under the rated working condition to obtain the DC voltage of the high-voltage valve group.

The invention discloses an energy-saving type grain drying machine, which is applicable to drying granular materials such as paddies, wheat, corn, soybean and rapeseed and seeds. The energy-saving type grain drying machine disclosed by the invention has the advantages that indirect hot-air heating is adopted, so that no pollution is caused to grains; an adopted mixed-flow type structure has a good effect for removing dust in grains and bad grains, so that the quality of the dried grains is excellent, and the added value of the waist cracking rate and the added value of the breakage rate of the grains is greatly superior to the national standard; and the drying speed is fast and the energy is saved by more than or equal to 35% compared with that of the similar machine.

The invention provides a large-coiler steam generator device with water being fed at the upper end. The large-coiler steam generator device with the water being fed at the upper end comprises a cylinder, a spiral heat exchange pipe and a vertical straight pipe section. The upper end of the cylinder is fixedly connected with an upper end closure, and the lower end of the cylinder is fixedly connected with a lower end closure. An inner shell is fixedly connected to the inner side wall of the cylinder. A return annular cavity is formed by the inner shell and the inner side of the cylinder. The upper portion of the side wall of the cylinder is provided with a water inlet section. The top of the upper end closure is provided with a steam outlet section. The spiral heat exchange pipe is of a large coiler structure. The upper end of the spiral heat exchange tube is connected with the steam outlet section. The lower end of the spiral heat exchange pipe is connected with the lower end of the vertical straight pipe section. The vertical straight pipe section is located at the center of the spiral heat exchange pipe. The upper end of the vertical straight pipe section is connected with the water inlet section. According to the large-coiler steam generator device with the water being fed at the upper end, the structure is simple, and the heat exchange efficiency is high; the middle space of the large-coiler steam generator device is fully utilized, the length of a preheating portion is increased, and the height of the cylinder is reduced; and in addition, the water inflow amount is controlled through a partition plate, power adjustment of the large-coiler steam generator device with the water being fed at the upper end can be achieved, and operation and maintenance are convenient.

A method for automatically controlling the output power of a gas discharge lamp includes: detecting the luminous decay variation of the gas discharge lamp, according to the detected luminous decay variation, matching a corresponding actual power value for the gas discharge lamp; and according to the matched actual power value, regulating the output power of the gas discharge lamp. Accordingly, the invention also discloses an electronic ballast, including: a luminous decay sampling module(8), for detecting the luminous decay variation of the gas discharge lamp; a single chip microcomputer (7), for matching a corresponding actual power value for the gas discharge lamp according to the luminous decay variation detected by the luminous decay sampling module; and a half-bridge inverter(6), for regulating the output power of the gas discharge lamp according to the actual power value matched by the single chip microcomputer microcomputer. The electronic ballast can prolong the service life of the gas discharge lamp, and save more energy compared with existing electronic ballasts by the invention.

The invention discloses an alternating-current input brushless direct-current motor for a fan and belongs to the technical field of motors. The alternating-current input brushless direct-current motor comprises a stator, a rotor, a circuit board and a motor shell, wherein the motor shell comprises a front end cover and a back end cover; the stator, the rotor and the circuit board are arranged in the motor shell; the circuit board is used for providing electric drive and control for the brushless direct-current motor; the circuit board is connected with an external power line; a rectifying circuit and a driving circuit are arranged on the circuit board. The alternating-current input brushless direct-current motor for the fan is simple in structure, low in material consumption, low in production cost, convenient to process and favorable for environmental protection; the driving circuit comprises a distributor, only two field-effect tubes and a Hall sensor, and is combined with a capacitor C1 to regulate power and adjust rotation speed; the driving circuit is energy-saving and lower in price, and the aims of saving energy and reducing emission are fulfilled.

The invention discloses a constant-current step-down circuit for an emergency evacuation marker lamp, and mainly solves the problems that an LED circuit structure and a power adjusting mode in an existing emergency evacuation marker lamp are complex, the design cost of the whole lamp is high, and energy is wasted. The constant-current step-down circuit comprises an LED lamp set, a linear voltage stabilization module and a control module, wherein the input end of the LED lamp set is connected with input voltage, the linear voltage stabilization module is connected to the output end of the LED lamp set in series, the input end of the control module is connected to the output end of the linear voltage stabilization module in series, and a plurality of resistors used for achieving power adjustment of the LED lamp set are further arranged in the control module. By means of the design, the characteristics of the linear voltage stabilization module are reasonably utilized, constant-current driving and power adjusting of the LED lamp set are achieved at the same time in the simplest, flexible and effective mode, the circuit structure is simplified, energy consumption and the overall design and production cost are reduced, and the efficiency of the emergency evacuation marker lamp is greatly improved. Therefore, the constant-current step-down circuit is suitable for popularization and application.

The invention discloses a heat exchange device of a gas water heater and a gas water heater, which comprise a plurality of heat exchange plates arranged vertically, a plurality of burner plates interlaced between the heat exchange plates, water inlet pipes, water outlet pipes and gas Pipeline; several heat exchange plates are connected with water inlet pipe and water outlet pipe; several burner plates are all connected with gas pipeline. The heat generated by the burner plate is transferred to the adjacent heat exchange plate through thermal radiation, and there is no other heat transfer medium in the middle, so that the heat transfer efficiency between the burner plate and the heat exchange plate is high; the burner plate is vertical The arrangement of the arrangement conforms to the principle of rising hot air, and the smoke generated by the burner plate rises vertically, which is good for smoke exhaust, can improve the heat exchange efficiency between the burner plate and the heat exchange plate, and solves the low heat exchange efficiency of the existing gas water heater technical issues.

A foldable electric heater for easy storage, which is characterized in that it includes more than two stacked electric heating sheets, one side of the electric heating sheet is connected to the spine board through a connecting piece, the whole is book-shaped, and the electric heating sheet is opened to form a fan; the spine board A power switch is provided, and the power switch is respectively connected to the power supply and each electric heater; there are opening limit tension bars connected between adjacent electric heaters; The reversible panel; between the adjacent electric heaters, between the panel and its adjacent electric heaters, there are open-angle travel switches, and the open-angle travel switches between the separated parts of the panels or electric heaters are turned on, and the electric heaters It is connected to the power switch through its adjacent open-angle travel switch; the invention sets the electric heater into a book-like structure, which has a large heat dissipation area after unfolding, good heat dissipation effect, and fast heating speed. When not in use, the electric heater can be folded and stored, saving space. The invention is ingenious in conception, easy to implement and suitable for popularization.