369 results about "Regulated power supply" patented technology

The invention discloses a new energy medium and long term stochastic programming method and system coupled with an electro-hydrogen water regulation power supply, and the method comprises the steps: building a power supply planning model with the minimum planning operation cost as an optimization target; bringing the new energy power supply and energy storage adjusting equipment operation model and the new energy consumption rate upper and lower limit constraint expression into a power supply planning model; in consideration of the randomness of fluctuation at two sides of a source and a load in power supply planning, based on the obtained power system operation scene set S and the power supply planning model, dividing into an investment decision-making layer and an operation simulation layer according to a time period influenced by a decision, and constructing a power supply planning two-stage stochastic optimization model based on a typical scene; and solving the power supply planning two-stage stochastic optimization model under a medium and long term planning framework, and determining the investment planning installed capacity of the adjusting power supply and the new energy in the planning level year. According to the invention, economy of medium and long term planning and power supply capacity configuration of new energy can be improved, and reasonable consumption and flexible adjustment of new energy electric power are promoted.

The invention discloses a wave power generation device for an island, and relates to the technical field of power generation for the island, the wave power generation device comprises a floating body and a fixed support, the floating body floats along with sea waves, an energy generation mechanism and an energy conversion mechanism are arranged on the inner side of the fixed support, the fixed support does not float along with the sea waves, and the energy generation mechanism is arranged on the top surface of the floating body; the fixed support controls the buoyancy difference value of the floating body based on the moving state of the energy generation mechanism, the energy conversion mechanism is connected with a generator through a transmission mechanism and drives the generator through the transmission mechanism, the generator is connected with a frequency-stabilized voltage-stabilized power supply through a wire, and the frequency-stabilized voltage-stabilized power supply outputs stabilized voltage electric energy. The wave power generation device has the advantages of being high in wave energy conversion efficiency, simple and compact in structure and reliable in operation.

The invention provides a high-voltage test method and device for electrical equipment, electronic equipment and a storage medium, the method is applied to a high-voltage test device, and the high-voltage test device comprises a bearing platform, a frequency modulation and voltage regulation power supply arranged on the bearing platform, an excitation transformer, an adjustable reactor and a capacitive voltage divider. Comprising the following steps: controlling an adjustable reactor and a capacitive voltage divider to be converted from a storage state to a working state on a bearing platform; target electrical equipment is connected to the output end of the adjustable reactor to form a series resonance circuit; a target test item is determined, and the voltage output frequency and the inductance value of the adjustable reactor are adjusted according to preset target test parameters of the target test item, so that the series resonance circuit reaches a resonance state; and outputting a voltage according to the target test parameter, obtaining a test operation parameter of the target electrical equipment, and generating a target test result according to the test operation parameter. According to the invention, the testing efficiency of high-voltage testing of the ultrahigh-voltage electrical equipment can be improved.

The invention discloses a super-capacitor energy storage boost control electric energy meter high-power load switch circuit and a control method, and relates to the technical field of power systems, and the circuit comprises a charging circuit which comprises a charging branch electrically connected with a voltage-stabilized power supply and a super-capacitor electrically connected with the charging branch; the boost circuit is electrically connected with the output end of the charging circuit and comprises a power supply branch, a boost chip electrically connected with the power supply branch and a voltage division branch; and the driving circuit is electrically connected with the output end of the booster circuit and comprises a driving chip and a load switch electrically connected with the driving chip. According to the method, the occupied area of the circuit board is reduced, the space is saved, the existing super-capacitor is fully utilized, the cost is reduced, the super-capacitor discharges at a high rate, the service life is long, and the reliability is improved.

A high-speed, low-noise laser signal detection apparatus, comprising a low-noise linear regulated power supply and a laser detection processing module. The low-noise linear regulated power supply (01-03) comprises an isolation unit (01), a voltage regulation and filtering unit (02), and a reference unit (03). The laser detection processing module (04-09) comprises a laser light signal detection input unit (05), a bias unit (04), a differential amplification unit (07), an active filtering unit (08), and an output interface unit (09). An output end of the voltage regulation and filtering unit (02) is connected to the reference unit (03) and the laser detection processing module (04-09). The reference unit (03) is connected to the bias unit (04) and is configured to provide a reference voltage to the bias unit (04). The bias unit (04) is configured to provide a bias voltage to the differential amplification unit (07). The differential amplification unit (07) comprises a multi-stage in-phase proportional differential amplification circuit, and the active filtering unit (08) comprises a multi-order active low-pass filter. According to the high-speed, low-noise laser signal detection apparatus, the detection bandwidth of a laser signal can be expanded, the signal-to-noise ratio of high-frequency pulse measurement can be reduced, and the anti-interference characteristics of a power supply can be improved.

The present invention relates to the technical field of frequency converters, and in particular to a frequency converter testing device. The frequency converter testing device comprises: a testing assembly, which comprises a box body, an accommodating cavity arranged in the box body, and a back plate disposed inside the accommodating cavity; a locking assembly, which comprises a sliding block disposed on the outer wall of the back plate and a movable frame disposed inside the box body; and an adjustment assembly, which comprises fixing plates disposed inside the accommodating cavity and a plurality of engagement blocks disposed on the outer wall of each fixing plate. In the present invention, by means of the provision of the box body, a testing box, a main control board, a 24V stabilized voltage supply and an automatic take-up device are assembled within the box body to form an integrated device, thereby facilitating long-term preservation and storage and improving the stability of the device during use; a retractable seat backrest is additionally provided, when the back plate extends by means of pushing a handle, a cover plate can be locked by means of a pin shaft, and the height of the back plate can be adjusted on the basis of requirements; and when testing is required, the handle is pushed reversely, such that the back plate can retract into the accommodating cavity, and the cover plate is unlocked, thereby facilitating the opening of a toolbox for testing.

The utility model relates to the technical field of direct-current power supplies, in particular to a high-efficiency low-ripple two-cascade joint debugging direct-current voltage-stabilized power supply system, which comprises a switching power supply, a main controller circuit, a power conversion circuit, an auxiliary power supply module and a serial port communication module, and is characterized in that the main controller circuit is respectively connected with the power conversion circuit, the auxiliary power supply module and the serial port communication module; the main controller circuit is connected with the switching power supply through the gate driver and is used for adjusting the output of the switching power supply, the main controller circuit controls the conversion of the power conversion circuit through an adjusting signal to obtain an actual output voltage, carries out error comparison on the actual output voltage and a set voltage, and dynamically adjusts the output voltage through a PID algorithm; the auxiliary power supply module is used for providing stable power supply voltage for the power conversion circuit and the serial port communication module; the serial port communication module is used for monitoring output voltage and current. According to the utility model, low ripples can be maintained on the premise that high efficiency is maintained.

The invention relates to the technical field of direct-current stabilized power supply performance testing, in particular to a direct-current stabilized power supply performance parameter testing method and system, and the method comprises the steps: collecting the output voltage data of a direct-current stabilized power supply within a preset time period under each preset target output voltage; uniformly dividing each preset time period into each sub-time period and numbering the sub-time periods according to a time sequence to obtain an amplitude distribution coefficient of each same frequency under each target output voltage; screening the characteristic frequency of each ripple; acquiring amplitude change characteristic values of the same ripple characteristic frequencies in the same sequence number sub-periods under all target output voltages; acquiring the ripple same-frequency difference degree of each same ripple characteristic frequency; screening each ripple frequency from all the same ripple characteristic frequencies, and obtaining the ripple floating ratio of each target output voltage; and evaluating the abnormal condition of the performance of the DC stabilized power supply. The invention aims to realize comprehensive and accurate evaluation of the performance of the direct-current stabilized power supply.

The application provides an AM-PM distortion calibration method applied to an UWB transmitter and belongs to the field of UWB communication. The method adds a sampling resistor between a linear voltage stabilizing power supply LDO and a digital power amplifier DPA driving stage of the UWB transmitter using a digital power amplifier, so as to simulate the instantaneous change of the power supply voltage of the DPA driving stage when the UWB pulse is transmitted; an adjustable delay unit is added between a carrier input port LO and the DPA driving stage; the continuous sine wave is transmitted, the phase information under each digital baseband amplitude control word is collected to form original data of the AM-PM distortion of the UWB transmitter, the digital baseband output AM-PM control word is used to control the adjustable delay unit to output the phase which is opposite to the original data and has the same size, so that the phase predistortion of the transmitted UWB pulse is realized, and the AM-PM distortion calibration is completed. The application has the advantages of simple implementation and strong compensation capacity.

The invention provides a high-precision voltage-stabilizing constant-current power supply for continuous discharge of a CO2 laser, which relates to the technical field of high-voltage voltage-stabilizing constant-current power supplies and comprises a high-voltage direct-current voltage-stabilizing power supply and a high-impedance amplification loop. The high-voltage direct-current voltage-stabilized power supply is boosted by a transformer, rectified by a rectifier bridge and stabilized by a filter capacitor, and continuously adjustable high-voltage output of 0-30kV is provided; the high-impedance amplification loop is composed of an operational amplifier, a three-stage triode amplification circuit and an electronic tube, the output impedance reaches up to 650 megohms, and the high-impedance amplification loop has the excellent constant-current characteristic. The power supply can accurately adjust the output current in the range of 0-30mA, the current fluctuation is less than one thousandth, the power supply can continuously and stably operate for more than 18 hours, and the power supply is suitable for laser discharge control in a high-temperature and high-density plasma environment. According to the invention, high-precision output is realized by adopting common performance devices, the advantages of voltage resistance, overload resistance and cost are considered, and the problems of poor current stability and inconvenient adjustment of a traditional laser power supply are solved.

The invention provides a high-voltage precise adjustable analog linear direct-current stabilized power supply, which comprises a signal processing unit, a rectifying and filtering unit, a control unit and a voltage stabilizing unit, and is characterized in that the signal processing unit is used for performing voltage amplification on received external signals and outputting the external signals to the control unit; the rectifying and filtering unit is used for rectifying and filtering input alternating current to obtain direct current and supplying power to the control unit; the control unit is used for sampling the output voltage of the power supply and adjusting the output voltage based on a sampling signal and an external signal so as to control the output value of the voltage stabilizing unit; and the voltage stabilizing unit is used for carrying out step-by-step current amplification based on the received output voltage so as to adjust the output voltage of the voltage stabilizing unit, filtering the output voltage and finally outputting the output voltage. According to the invention, the problems of high procurement and maintenance cost of the existing foreign imported linear adjustable power supply and large ripple, poor stability, obvious voltage drift and limited voltage regulation range of the common linear voltage-stabilizing direct-current power supply and the switching power supply in the market are solved.

The application discloses a high-duty-cycle control system of a step-down DC-DC switching power supply, which is additionally provided with a high-duty-cycle control system on the basis of a basic structure of the switching power supply and comprises an LDO, a diode D2 for charging a capacitor C1 by the LDO, an error amplifier, a current comparator, an OR gate, a pulse generator, an RS latch and an under-voltage lockout circuit for detecting a voltage VBS between the capacitor C1. The under-voltage lockout circuit detects the voltage VBS between the capacitor C1, when the voltage is insufficient, temporarily turns off a charging switch tube M1, charges the capacitor C1 for providing a stable voltage power supply for a driving circuit during the turn-off of the M1, restores the power supply voltage of the driving circuit, and then reopens the M1, so as to realize the high-duty-cycle conduction of the NMOS type charging switch tube.

The present invention relates to a circuitry system (1). The circuitry system (1) comprises a reservoir power rail (12), a regulated power rail (14), a logic circuitry (18) connected to the regulated power rail (14), wherein each of the reservoir power rail (12), regulated power rail (14) and logic circuitry (18) is connected to respective voltage supply source (16), characterized by a dynamic decoupling capacitor (10) connecting the reservoir power rail (12) to the regulated power rail (14), and in communication with the logic circuitry (18), wherein the dynamic decoupling capacitor (10) is configured to match a total-charge of injected-current, ldecap, from the reservoir power rail (12) with a total-charge of load-current, lload, supplying to the logic circuitry (18). A method for regulating voltage of the circuitry system (1) is also disclosed herein.

The invention provides a product vehicle simulation training control system and method, and belongs to the technical field of product vehicle simulation training control. In order to solve the technical problems that the number of training tasks of existing product vehicle simulation training equipment is small, irreversible abrasion exists on the equipment, the function is single, and the training effect is limited, the adopted product vehicle simulation training control system comprises a comprehensive control cabinet, a mobile power station, a vehicle body sensing control module, a hydraulic pump station and peripheral display control equipment. A comprehensive control box, an alternating-current distribution box, a direct-current stabilized power supply, a storage battery cabinet, an energy monitoring unit and an intelligent power distribution unit are arranged in the comprehensive control cabinet; the vehicle body sensing control module is arranged in an oil cylinder of the simulation product vehicle, in each equipment cabin and on a vehicle frame; the control end of a PLC host in the comprehensive control box is connected with a vehicle body sensing control module, a hydraulic pump station, peripheral display control equipment and a vehicle control execution mechanism through wires. The method is applied to product vehicle simulation training.

The invention discloses a wide voltage input multistage voltage-stabilized power supply system, which relates to the technical field of vehicle-mounted power supplies, and comprises an input protection unit, the input end of which is connected with a vehicle power supply and is used for preventing the positive and negative electrodes of the vehicle power supply from being reversely connected and outputting an input voltage, and the input voltage range is 8V-60V; the input end of the high-voltage stabilizing unit is connected with the output end of the input protection unit, and the high-voltage stabilizing unit is used for converting the input voltage into 12V voltage and outputting the 12V voltage; the input end of the medium-voltage stabilizing unit is connected with the output end of the high-voltage stabilizing unit, and the medium-voltage stabilizing unit is used for converting 12V voltage into 5V voltage and outputting the 5V voltage; the input end of the low-voltage stabilizing unit is connected with the output end of the medium-voltage stabilizing unit, and the low-voltage stabilizing unit is used for converting 5V voltage into 3.3 V voltage to be output, so that the problem that various standard voltages cannot be output at the same time in the prior art is solved.

The invention relates to a device and method for evaluating the influence of a power supply noise group on phase noise of a phase-locked loop, and relates to the technical field of phase-locked loops, and the device comprises a sine phase discriminator which detects the phase difference between an external reference signal and a feedback signal of a voltage-controlled oscillator; the input end of the loop filter is connected with the output end of the sine phase discriminator; the input end of the voltage-controlled oscillator is connected with the output end of the loop filter; establishing a phase-locked loop simulation model composed of a sine phase discriminator, a loop filter and a voltage-controlled oscillator; selecting a linear voltage-stabilized power supply series, and calculating a phase noise matrix with power supply noise corresponding to each model; different types of linear voltage-stabilized power supplies are respectively used for supplying power, and actually measured phase noise data corresponding to each type are tested and recorded; power supply noise group distribution is fitted by adopting a power law function, and optimal linear voltage-stabilized power supply model selection under the phase-locked loop architecture is determined. The method has the beneficial effects that the accuracy of predicting the phase noise is improved, the optimal solution is realized, and the model most suitable for the phase-locked loop architecture in the LDO series is selected.

The invention provides an emergency floating system power-on inspection device and method. Comprising a simulator, the simulator is internally provided with a plurality of power-on inspection circuits corresponding to explosion caps of the emergency floating system to be inspected in a one-to-one mode, and each power-on inspection circuit comprises a self-holding relay, a current-limiting resistor and an excitation circuit; the indicating unit comprises a plurality of indicating lamps which are in one-to-one correspondence with the power-on checking circuits; the reset switch is used for controlling on-off of a power supply of the device and state reset of the self-holding relay; the direct-current stabilized power supply is used for supplying power to the device; the acquisition and calculation board card is used for acquiring voltage signals in each power-on check circuit and calculating time difference of activation of the plurality of energy storage capacitors; the display screen is connected with the acquisition and calculation board card and is used for displaying a detection result; wherein the device is connected with a gas cylinder interface of the emergency floating system through an interconnection cable assembly, so that the simulator is connected into a system loop; the excitation circuit is used for enabling the corresponding self-holding relay to act when an inflation instruction is simulated and received; and after the self-holding relay acts, the corresponding indicating lamp is switched on to form an indicating loop.

The utility model relates to a multipath adjustable DC stabilized power supply comprising a control module and at least two DC output channels, and each DC output channel comprises a DC converter, a feedback resistor, a variable resistor and a differential analog-to-digital converter. The power input end of the direct-current converter is connected with a direct-current signal source; the power output end of the direct-current converter is connected with the input end of the load electric appliance; the feedback resistor and the variable resistor are connected in series to form an output feedback circuit, a first end of the output feedback circuit is connected with a power output end of the direct-current converter, a second end of the output feedback circuit is grounded, and one end, connected with the feedback resistor, of the variable resistor is connected with a feedback input end of the direct-current converter. The control module is connected with the control input end of the variable resistor; the input end of the differential analog-to-digital converter is connected with a load electric appliance, and the output end of the differential analog-to-digital converter is connected with the control module. The utility model can accurately obtain the voltage at the power utilization end and adjust the output voltage, thereby ensuring the voltage at the power utilization end to be stable and accurate.

1. The name of the design product: regulated power supply (D3). 2. The use of the design product: for DC regulated power supply. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention belongs to the field of vehicle-mounted electronic product power supply, and particularly discloses a stabilized power supply output system and an output method thereof.The system comprises a voltage reference chip, a first triode, a second triode, a power MOS tube, a first resistor, a second resistor, a third resistor and a fourth resistor; the third resistor and the fourth resistor are connected in series between the power output end and the ground, the voltage dividing point is connected with the base electrode of the second triode, the emitter electrode is grounded through the first resistor, and the collector electrode is connected with the source electrode of the power MOS tube through the fifth resistor and used for adjusting the voltage stabilizing output voltage limit value according to the normal working voltage limit value of a back-stage load. When the voltage of the input end is smaller than the set voltage-stabilizing output voltage limit value, the output voltage is kept consistent with the input voltage, and when the voltage of the input end is larger than the set voltage-stabilizing output voltage limit value, the output voltage is kept at the set voltage-stabilizing output voltage limit value. The circuit can meet the requirement of a large-power load, and can still work normally when the power supply voltage changes.

This invention relates to the field of regulated power supplies, and more particularly to a high-power, wide-range adjustable DC linear regulated power supply, comprising a switching power supply input circuit, an auxiliary switching power supply circuit, a power factor compensation boost circuit, a switching power supply isolation power conversion circuit, a voltage and current controllable BUCK circuit, and a load voltage and current display circuit. Through the coordinated connection of the above-mentioned circuit modules, this invention solves the problems of narrow voltage regulation range, low power, and bulkiness of existing DC linear regulated power supplies.

1. Name of the product in this design: Regulated Power Supply. 2. Purpose of this design: To be used as a DC regulated power supply. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present invention discloses an electrically controlled conversion terahertz single-frequency, dual-frequency, and triple-frequency bandpass filter, which is composed of a high-resistance silicon layer, a polyimide layer, a common ground electrode, and a frequency control structure. The polyimide layer and the high-resistance silicon layer are superimposed, and the lower surface of the polyimide layer is in contact with the upper surface of the high-resistance silicon layer; the frequency control structure is superimposed on the upper surface of the polyimide layer, and the common ground electrode is superimposed on the lower surface of the high-resistance silicon layer. The two electrode patches of the frequency control structure are respectively connected to the positive pole of a DC regulated power supply via a switch, and the common ground electrode is directly connected to the negative pole of the DC regulated power supply. Compared with the prior art, the present invention can realize multi-frequency filtering, is suitable for different occasions, has a simple structure, and is easy to operate.

A circuit tracking and positioning device comprises: a power supply unit 1, a no fuse circuit breaker finder 2, and a central processor 3. The power supply unit has a voltage regulating circuit to generate a stabilized voltage power supply 10 and a precision power supply 12 with high current supply capability. The fuseless circuit breaker finder amplifies a pulse signal received from a transmitter (4, figure 2) to form an amplified pulse signal, performs signal shaping on the amplified pulse signal and compares the amplified pulse signal with a reference voltage to eliminate noise and obtain a first DC voltage value. The central processor is coupled to the fuseless circuit breaker finder to convert the first DC voltage signal into a digital numerical value to determine a signal strength of the transmitter. The invention is used in electrical testing e.g. of a network of wired electrical sockets.

The invention discloses an automatic blowdown electrokinetic remediation device and method coupling electrolysis gas production pressurization and siphoning. The device comprises a siphoning upward-discharging type conductive drainage plate, a direct-current stabilized power supply and a vacuum self-priming pump. The siphon upward-drainage type conductive drainage plate is made of a flexible material and comprises a vertical drainage plate, a top end U-shaped plate and a flexible water guide pipe. Vertical water guide grooves are formed in the surfaces of the vertical drainage plates, vertical water guide pipes are arranged in the vertical drainage plates, and bottom water storage grooves are formed in the bottoms; the flexible water guide pipe is connected with the top end U-shaped plate and the vacuum self-sucking pump; the bottom water storage tank is communicated with the vertical water guide grooves and the vertical water guide pipes and used for collecting the soil pore water solution guided by the vertical water guide grooves, conveying the soil pore water solution to the top end U-shaped plate from the vertical water guide pipes under internal electrolysis gas production pressurization and external vacuum negative pressure, and meanwhile discharging the soil pore water solution to the flexible water guide pipes under the siphoning action of the top end U-shaped plate. The problems that existing polluted soil / bottom mud electric guiding, discharging and repairing are tedious in procedure, difficult to overhaul, large in workload, high in cost and the like are solved.

The utility model provides a mining DC voltage-stabilized power supply supporting multiple input voltage levels, comprising a DC voltage-stabilized power supply device, the front surface of the DC voltage-stabilized power supply device is fixedly connected with a low-voltage connector, the front surface of the DC voltage-stabilized power supply device is fixedly connected with a middle-voltage connector at the bottom of the low-voltage connector, and the middle-voltage connector is fixedly connected with a high-voltage connector at the bottom of the low-voltage connector. According to the utility model, through the arrangement of the protection mechanism, the connectors and the switch button are protected by the protection plate and the mistaken touch prevention plate, so that the service life performance and the sealing performance of the direct-current voltage-stabilized power supply device are ensured, and the direct-current voltage-stabilized power supply device is protected. The direct-current voltage-stabilized power supply connector is prevented from being damaged and corroded, the stability and durability of the direct-current voltage-stabilized power supply are improved, the maintenance requirement is reduced, the service life of the direct-current voltage-stabilized power supply is prolonged, and therefore the overall reliability of the direct-current voltage-stabilized power supply is improved.

A regulator circuit is disclosed. The regulator circuit is configured to generate a regulated voltage for a load based on an unregulated supply voltage, the regulator circuit including a regulator, configured to receive the unregulated supply voltage and to generate the regulated voltage based on the unregulated supply voltage, where in the regulated voltage includes noise from the unregulated supply voltage; and a noise compensation circuit configured to amplify noise of the unregulated supply voltage, and to inject the amplified noise onto the regulated voltage.

The utility model relates to a time relay control circuit, which comprises an anti-interference module, a normally-closed driving module, a normally-open driving module, a normally-closed access module, a normally-open access module, a switch driving module and a voltage-stabilized power supply module. By integrating the anti-interference module, external interference signals are effectively isolated and filtered, the stability of signals received by the timer chip is ensured, the reliability and stability of the whole control circuit are improved, the normally-closed access module and the normally-open access module are each provided with two independent processing circuits, multi-path signal input is supported, and the reliability and stability of the control circuit are improved. In addition, elements such as P-channel field effect transistors and N-channel field effect transistors are adopted, accurate control and processing of signals are achieved, the circuit response speed is increased, the normally-closed driving module and the normally-open driving module utilize elements such as optocouplers and metal film resistors to stably drive contact switches, the switch driving module further enhances the driving capacity, and the circuit reliability is improved. The voltage-stabilized power supply module provides stable working voltage to ensure normal operation of the circuit.

The utility model relates to a testing device of an electromagnetic valve, and belongs to the technical field of electromagnetic valve testing. The protruding end or the groove end of the pressing plate faces the main mounting plate and is connected with the main mounting plate through a fastening bolt, the air supply device is connected with an air inlet hole in the side face of the main mounting plate through an air supply pipeline, and the direct-current stabilized power supply is used for being connected with a tested electromagnetic valve. The testing device for the electromagnetic valve has the advantages of being novel in structure, capable of meeting most testing requirements of the electromagnetic valve, simple in structure, easy to machine, low in cost, convenient to operate and the like, and cost reduction and efficiency improvement can be greatly achieved.