584 results about "Current regulation" patented technology

The invention discloses a new energy commercial vehicle fast charging working condition thermal management control method and system, and relates to the technical field of new energy vehicle thermal management and fast charging control, and the method comprises the following steps: collecting the temperature, voltage and current data of each subarea of a battery in a fast charging process, forming a time synchronization sequence, and based on the sequence, obtaining a new energy commercial vehicle fast charging condition; calculating internal thermal resistance and thermal capacity parameters of the battery in real time by using an online identification algorithm, updating a basic thermal model to obtain a corrected thermal dynamic model reflecting actual thermal characteristics of the current battery, importing the corrected model into a model prediction controller, constructing a multi-objective optimization function, and performing rolling solution in a prediction time domain to obtain a prediction model; and outputting an optimal target charging current instruction and a cooling total demand, adjusting the charging power according to the target current, and combining the temperature difference distribution of each partition. Accurate prediction and partition cooperative control of the thermal state of the battery in the fast charging process are achieved, the temperature rise and the temperature difference are effectively restrained while the charging efficiency is guaranteed, the service life of the battery is prolonged, and the system safety is improved.

The invention discloses a current harmonic disturbance suppression method and suppression system for a permanent magnet synchronous motor. The method comprises the following steps: acquiring voltage and current signals of an electrical loop phasor test in the operation of the motor; an inductance identification algorithm based on high-frequency response is adopted, high-frequency excitation signals are injected, current response is monitored, and stator inductance parameters are calculated; constructing a multi-synchronous rotating coordinate system based on the parameter, and decomposing the current signal to obtain each harmonic current component; building a fuzzy full-order sliding mode observer, inputting an inductance parameter, voltage data and a harmonic current component, and dynamically adjusting a sliding mode surface parameter to observe the position and the rotating speed of a rotor; independently controlling each harmonic current adjusting channel under a multi-coordinate system in combination with observation information, and generating a compensation control signal; and the synthesized master control signal is output to the driving circuit. The system comprises six units, and the method and the system can accurately obtain parameters, efficiently decompose harmonic waves, accurately observe states, realize multi-frequency harmonic disturbance suppression, and improve motor operation stability and efficiency.

The invention provides a power factor correction method and system for AC-DC conversion of a server power supply, and relates to the technical field of server power supplies, and the method comprises the steps: collecting an input AC signal and a DC bus output signal, calculating a real-time power factor value, constructing a compensation function based on the power factor value, and calculating a deviation value; and generating a compensation parameter matrix through recursive calculation, processing a direct current output signal by adopting an adaptive filtering algorithm, fusing the direct current output signal with the compensation parameter matrix, calculating to obtain a current adjusting signal and a duty ratio adjusting signal, and accurately adjusting a power factor.

The invention relates to the technical field of motors, and discloses a high-temperature-resistant direct-current coreless gear motor and a test system, and the system comprises a temperature monitoring module, a current regulation and control module, a heat dissipation optimization module, a load response module, a cloud analysis module and a virtual verification module. By arranging the temperature monitoring module, multi-dimensional temperature data during operation of the motor can be acquired in real time, and a temperature distribution diagram can be generated, so that the system can comprehensively sense the internal thermal state of the motor and accurately identify local overheating risk points, thereby improving the operation reliability and safety of the motor under a high-temperature working condition; through cooperative operation and closed-loop control of the current regulation and control module, the heat dissipation optimization module and the load response module, according to real-time temperature and load changes, driving current parameters and heat dissipation resource distribution can be dynamically adjusted, and the heat dissipation efficiency is improved. And the output performance and the torque stability of the motor under high-temperature and high-load conditions are ensured.

The invention discloses a circuit breaker integrated with an adjustable hydraulic release. The circuit breaker comprises a circuit breaker body, wherein the adjustable hydraulic release, a release transmission mechanism and a main contact system are arranged in the circuit breaker body. The adjustable hydraulic release comprises a release body and an intelligent control module; the tripper body is provided with an oil cup, an oil cup iron core capable of axially moving, a pole shoe, a first coil and an armature, and the armature is linked with the tripping transmission mechanism. When the first coil is electrified, a first electromagnetic force is generated to push the oil cup iron core to move towards the pole shoe and finally attract the armature to trigger a tripping action so as to break a circuit. The intelligent control module is located at the end of the oil cup and can generate second electromagnetic force in the same direction or reverse direction as the first electromagnetic force to act on the oil cup iron core, and rated current adjustment and overload protection adjustment are achieved. According to the design, the problem that the protection characteristic of a traditional hydraulic electromagnetic release is fixed is solved, the number of synthesized ampere turns is equivalently changed through controllable second electromagnetic force, the rated current is flexibly adjusted, and the requirements of different devices are met.

The invention discloses an adjustable oil damping electromagnetic release applied to a circuit breaker, and belongs to the technical field of release. Comprising an oil cup, an oil cup iron core capable of moving in the axial direction, a pole shoe arranged at the end of the oil cup and a first coil wound around the outer wall of the oil cup, and when the first coil is powered on, first electromagnetic force driving the oil cup iron core to move towards the pole shoe is generated; and the intelligent control module is arranged at the end part of the oil cup and is used for outputting controllable direct current to generate second electromagnetic force in the same direction or opposite direction as the first electromagnetic force, and the release has a rated current adjusting function and an overload protection adjusting function by adjusting the magnitude and the direction of the second electromagnetic force. The controllable second electromagnetic force is introduced into a traditional oil damping electromagnetic release, the rated current specification can be adjusted, the release action time can be adjusted, the advantage that the temperature stability of the oil damping release is good is reserved, and meanwhile the defect that the protection characteristic of the oil damping release cannot be adjusted is overcome.

The invention belongs to the technical field of electronic information, and provides a method for optimizing the stability of a photoelectric information conversion assembly in a severe environment, which comprises the step of optimizing the stability of the photoelectric information conversion assembly in the severe environment. The method comprises the following steps of: synchronously acquiring environment parameters such as temperature, humidity and illumination and equipment current data in a high-temperature and high-humidity environment to construct a multi-dimensional time sequence group; analyzing the coupling degree of each environment parameter and the current sequence, and after locking the high coupling relationship between illumination and current, judging whether the current response has delay or not when the illumination suddenly changes; if the delay exists, further analyzing the current response sensitivity, if the sensitivity deviates from expectation, constructing an illumination-current prediction model, and calculating the current regulation quantity in advance by predicting the illumination abrupt change amplitude to realize pre-regulation; and finally, collecting the adjusted data iteration optimization model, and improving the dynamic response performance and stability of the assembly in a complex environment.

The invention discloses a servo system control method based on frequency domain self-tuning and linear active disturbance rejection, and relates to the technical field of servo control and motor control. Comprising the following steps: based on a mathematical model of a permanent magnet synchronous motor, establishing a double-inertia model suitable for a large-inertia servo system, and constructing an equivalent mathematical expression of an electrical and mechanical transmission system; in a three-stage cascade control architecture composed of a current loop, a speed loop and a position loop, the current loop is used for current adjustment, the speed loop is used for dynamic response adjustment, and the position loop is used for displacement target tracking. Based on a frequency domain performance index and a rule method, PI controller parameters of a speed loop and a position loop are set respectively, and the frequency domain index comprises an open-loop cut-off frequency and a phase margin; and establishing a frequency domain equivalent mapping relation between the PI controller and the LADRC controller. The method has the advantages that the method does not depend on accurate modeling and manual interference, automatic parameter setting can be achieved, non-overshoot dynamic response is achieved, and the remarkable disturbance suppression capacity is shown.

The invention discloses a driving control method, a driving control circuit and electronic equipment. The driving control method comprises the following steps: acquiring a power supply output voltage, an energy storage characteristic voltage and an energy storage characteristic current in an energy storage compensation circuit; performing first filtering processing on the power supply output voltage to obtain a target output voltage; obtaining a feedback regulation output value by using the target output voltage and the power supply output voltage; obtaining an energy storage adjustment output value by using the target energy storage voltage and the energy storage characteristic voltage; obtaining a voltage regulation output value by using the feedback regulation output value and the energy storage regulation output value; obtaining a current regulation output value by using the energy storage characteristic current and the voltage regulation output value; generating a driving control signal by using the current regulation output value; and the driving control signal is sent to the energy storage compensation circuit so as to adjust the power supply output voltage. According to the driving control method, the time delay of dynamic compensation of the power supply output of the energy storage compensation circuit is short, the response is quicker, and the structure is simpler.

The invention provides an anti-over-temperature protection method and system for a battery of a two-wheeled vehicle of a battery changing cabinet in the technical field of battery safety management of the battery changing cabinet. The method comprises the following steps: S1, setting a threshold parameter; s2, collecting the temperature value and the real-time SOC of each battery in the charging process, and calculating the temperature rise rate; s3, when the temperature value is smaller than the temperature early warning value and the temperature rise rate is smaller than or equal to a first temperature rise rate threshold value, a minute-level monitoring mode is triggered; s4, when the temperature value is larger than or equal to the temperature early warning value or the temperature rise rate is larger than a second temperature rise rate threshold value, a second-level monitoring mode is triggered, and the initial charging current is adjusted based on a three-level current regulation and control strategy; s5, performing current recovery operation on the reduced charging current; s6, executing fusing protection based on the triggering times of the three-level current regulation and control strategy; and S7, when the real-time SOC reaches the SOC upper limit, stopping charging of the battery. The power conversion cabinet has the advantage that the charging safety of the power conversion cabinet is greatly improved.

The invention discloses a condenser dynamic heat exchange regulation and control method and system based on multi-dimensional perception and AI, and relates to the technical field of intelligent heat exchange regulation and control. The condenser dynamic heat exchange regulation and control method and system based on multi-dimensional perception and AI comprises the steps that S1, condenser heat exchange perception data are collected and preprocessed; s2, performing two rounds of data screening on the sampling points, realizing emergency regulation and control instruction issuing and abnormal point data processing, and constructing an effective condenser operation data set; s3, the heat exchange adaptation degree of the condenser is evaluated, the load state category is recognized, and a regulation and control instruction is output; and S4, the regulation and control instruction is executed, execution feedback data is collected, the heat exchange execution performance of the condenser is evaluated, whether the current regulation and control instruction needs to be adjusted or not is judged based on the evaluation result, and the execution feedback data and the evaluation result are returned for threshold value updating and regulation and control strategy optimization. The problems that due to fixed heat exchange control of the condenser, phase change is limited under load change, and energy consumption is too high are solved.

The invention discloses an energy storage power station-oriented battery aging sensing self-adaptive charging and discharging control method and system, and relates to the technical field of electric energy storage. The energy storage power station battery aging sensing self-adaptive charging and discharging control method comprises the following steps: S1, collecting battery working condition physical data, and preprocessing the battery working condition physical data; s2, acquiring a health attenuation factor, evaluating the health state of the battery, judging the health level of the battery based on an evaluation result, and generating a health level label; s3, evaluating the charging and discharging regulation and control capability of each battery, calculating a target charging and discharging current, generating a current instruction set, and implementing a current regulation task; and S4, evaluating the matching degree of the current adjustment strategy and the battery state after each round of current adjustment, and dynamically adjusting the target current. The problems that a traditional energy storage power station lacks a real-time identification and differentiation control mechanism for the aging state of the battery, and system capacity attenuation and thermal potential safety hazards are likely to be caused are solved.

The invention belongs to the technical field of off-grid inverter and battery management, and particularly relates to an off-grid inverter battery protection and charging control method and system based on impedance detection, and the method comprises the steps: collecting battery input parameters under two different load working conditions: no-load or light-load and on-load conditions; an Ohm law analytical algorithm is adopted, a corresponding relation model of the lithium battery remaining capacity SOC and the battery internal resistance is preset, the current actual internal resistance of the battery is obtained, the preset SOC-internal resistance corresponding relation model is input, and the current SOC value of the battery is obtained through reverse deduction; an inverter charging current adjusting threshold value is set in a grading mode, and a multi-dimensional risk early warning threshold value is set in a grading mode; and when the monitored numerical value exceeds a correspondingly set risk early warning threshold value, triggering a risk early warning signal of a corresponding grade and a matched disposal action, and carrying out full-process management and control of battery state real-time monitoring, charging current self-adaptive adjustment and risk early warning. Therefore, the problems of short service life, poor charging safety and the like of the battery in the prior art are solved.

The invention relates to a thermodynamic design method for distributed overhead ground wire alternating current ice melting, and belongs to the technical field of power transmission line ice melting. The method aims at solving the problems that an existing ice melting technology is high in power consumption, low in efficiency, difficult in equipment movement and lack of fine design of a current regulation and control strategy. The core of the technical scheme is that a thermal equivalent theoretical model and an electric heat flow coupling simulation model of the overhead ground wire are established, key thresholds such as wire protection current, critical ice melting current and maximum allowable current are determined through calculation, and an effective value of alternating current injected into the ground wire is flexibly adjusted by using a reactive power compensation device. According to the method, segmented ice melting according to needs can be achieved, energy consumption is remarkably reduced, the ice melting efficiency and safety are improved, and the needed device is small in size, convenient to move and deploy and suitable for various complex icing working conditions.

The invention discloses a material flow collaborative distribution system for a double-color injection mold of an automobile connector, relates to the technical field of intelligent manufacturing equipment, and can solve the technical problems of inaccurate regulation and control in the injection molding process and easy generation of a bonding line defect, and the material flow collaborative distribution system comprises the following steps: obtaining production monitoring data in the production process of the double-color injection mold; according to time sequence monitoring parameters in the production monitoring data, abnormal data generated by temporary interference are identified and eliminated, and abnormal state parameters are obtained; wherein the abnormal state parameter is used for representing a real process abnormal state after the temporary interference is eliminated; according to the abnormal state parameter, screening out a historical similar state similar to the current production process from the historical production monitoring data, and determining the interference degree on the defect of the bonding line in the current production process according to the historical similar state; determining a current regulation and control demand according to the interference degree; and a regulation and control instruction is generated according to the current regulation and control requirement, and an execution mechanism is driven according to the regulation and control instruction to adjust the melt propelling speed.

The invention discloses an automatic load reduction control system for a charging pile, and relates to the technical field of new energy automobile charging. In order to solve the problems of easy overload, dependence on manual adjustment, low voltage detection precision, weak interference resistance and the like when an existing charging pile adapts to different power supply standards, the system comprises a voltage detection module, a main control module, a current adjustment module and a current detection module. The voltage detection module balances the sampling precision through a differential voltage-dividing current-limiting resistance network, and filters high-frequency noise in combination with a filter circuit; a metering chip of the main control module identifies the voltage grade and outputs a current control instruction; the current adjusting module responds to an instruction to adjust output current, and the current detection module realizes accurate feedback through differential sampling and symmetric filtering to form closed-loop control. According to the invention, automatic voltage grade identification, dynamic current adjustment, improvement of anti-interference capability and sampling precision and avoidance of overload risk are realized, and the operation is simple and convenient.

A power factor correction (PFC) control circuit includes a pulse-width modulation (PWM) circuit configured to control a switch of a switching power converter. The PFC control circuit further includes a mode control circuit configured to select a conduction mode from a plurality of conduction modes for the switching power converter based at least in part on an output power of the switching power converter and to control a beginning of a switching cycle of the switching power converter based on the selected conduction mode. In addition, the PFC control circuit includes a current regulation circuit configured to provide a regulation signal to the PWM circuit to regulate an average coil current of the switching power converter in each of the plurality of conduction modes.

The invention provides a driving circuit of a high-side switching tube, and the driving circuit of the high-side switching tube comprises a pull-up unit which carries out the pull-up of a grid potential of the high-side switching tube through a first current when a control signal is effective; the second pull-down unit is used for carrying out pull-down on the grid potential of the high-side switching tube by utilizing second current when the control signal is invalid; the pull-up unit further adjusts the first current according to the first current adjusting signal so as to adjust the starting speed of the high-side switching tube, and therefore slow starting of the high-side switching tube is achieved. According to the driving scheme of the high-side switching tube, the structure is simple, slow switching-on and switching-off of the high-side switching tube can be achieved, mistaken switching-on of the high-side switching tube can be avoided when the voltage of the input end is subjected to rapid step, and it can be ensured that no reverse current flows back to a driving circuit power source when the voltage of the output end is higher than the voltage of the input end.

The utility model discloses a leakage current detection type PCBA test circuit and equipment. The leakage current detection type PCBA test circuit comprises a test current signal output unit, a test voltage signal output unit and a test result signal output unit, the test current signal output unit is used for outputting a leakage current detection current signal; the test current signal output unit is provided with a current adjusting circuit, and the current adjusting circuit is used for adjusting the value of the leakage current detection current signal. The test voltage signal output unit is used for outputting a leakage current detection voltage signal; the test voltage signal output unit is provided with a voltage adjusting circuit, and the voltage adjusting circuit is used for adjusting the value of the leakage current detection voltage signal. The leakage current detection current signal and the leakage current detection voltage signal are used for being loaded to a PCBA to be detected; when the PCBA receives the leakage current detection current signal and the leakage current detection voltage signal, a leakage current protection signal is output; the test result output unit is configured to output a test result signal when the leakage current protection signal is received.

The invention relates to a multi-split air conditioner regulation and control method, device and equipment, a storage medium and a product. The method comprises the steps that reference temperature data of a target building where the multi-split air conditioner is located and reference power data of the multi-split air conditioner within a preset reference time period are obtained, and a target thermal parameter value of the target building is obtained through a preset building thermal model, the reference temperature data and the reference power data, the building thermal model is used for calculating heat change data and heat exchange data of the target building, and the target thermal parameter value is a value of a thermodynamic parameter of the target building under the condition that the heat change data and the heat exchange data meet a preset heat balance relationship; and the actual load-shedding power amount of the multi-split air conditioner in the current regulation and control time period is determined, so that the multi-split air conditioner is regulated and controlled according to the load-shedding power amount. By adopting the method, the dynamic thermodynamic characteristics of the building under the actual operation working condition can be determined, the adjustable potential of the air conditioning system can be accurately quantified, and the regulation and control accuracy can be improved.

The invention provides a method, medium and system for automatically adjusting charging current of a high-power charging pile, and belongs to the technical field of charging piles. Key parameters of a battery are collected in real time, a charging power offset matrix is established to quantify power deviation, and a current adjustment adjustable matrix is constructed to define a safe adjustment range; generating a harmonic interference probability matrix to evaluate the interference influence of the power grid, establishing an upper-layer game model with charging efficiency maximization as a target and a lower-layer game model with battery safety optimization as a target, processing multi-dimensional monitoring data by adopting a time sequence adjustment model, and outputting a current adjustment suggested value; the neuron activation threshold value is adjusted by adopting the corresponding gain coefficient and the damping parameter according to different working conditions through the charging current adaptive function, intelligent adaptive output of the charging current is finally achieved, and the technical problem that the charging pile cannot achieve intelligent adaptive adjustment of the charging current in a complex power grid environment is solved.

The invention discloses a power supply control method and system based on a real-time slope adjustment algorithm, and the method comprises the steps: monitoring the load impedance characteristics of a power supply and environment noise data in real time, and obtaining an independent control time slice set; obtaining a time sequence identifier of the control time slice set, and obtaining a dynamic mode parameter packet bound with the current load characteristic; obtaining a real-time voltage / current regulation instruction set with a feed-forward compensation coefficient according to the dynamic mode parameter packet and the error tolerance data; analyzing the real-time voltage / current regulation instruction set, and combining the historical working condition similarity data to obtain an optimized PID coefficient matrix and a feed-forward gain vector; and executing the optimized PID coefficient matrix and the feed-forward gain vector, and generating and outputting a four-dimensional space trajectory signal which is completely matched with the target slope trajectory as a direct driving reference of a power supply power device. According to the embodiment of the invention, high-precision and low-jitter real-time slope tracking control can be realized, and the dynamic response speed and anti-interference robustness of a power supply system are improved.

The invention discloses a power supply control method of a hard disk array and electronic equipment, and relates to the technical field of server storage. The method comprises the following steps: acquiring hard disk starting power consumption in a server power-on stage; according to the hard disk starting power consumption, determining an initial starting number, simultaneously electrifying a plurality of hard disk groups which are initially started in the hard disk array, and obtaining first power consumption of the hard disk array; according to the first power consumption, the remaining hard disk groups in the hard disk array are powered on in batches, so that all the hard disk groups in the hard disk array are powered on; in a server operation stage, obtaining second power consumption of the hard disk array to construct a power consumption regulation and control model; and based on the power consumption regulation and control model and the power consumption tracking sequence, determining a target power supply current adjustment signal, so that the first logic device adjusts the power supply current of the hard disk array according to the target power supply current adjustment signal. Therefore, tracking and stable control of the power consumption of the hard disk array are realized.

A control method for a converter. An input end of the converter is used for being connected to a first power supply; an output end of the converter is used, together with an output end of a second power supply, for being connected in parallel to an alternating current bus; the alternating current bus is used for being connected to a load; and the power supply priority of the first power supply is higher than that of the second power supply. The control method comprises: first acquiring a load current value and a preset adjustment coefficient; next, calculating a current adjustment value on the basis of the load current value and the preset adjustment coefficient; then calculating a reference voltage value of a converter on the basis of a reference output current value of the converter, the current adjustment value, an actual output current value of the converter and a voltage value of an alternating current bus; and finally generating an output control signal on the basis of the reference voltage value and an input voltage value of the converter to control an output of the converter.

The invention belongs to the technical field of electronic circuits, and provides a driving circuit for current regulation and control and a negative voltage charge pump circuit. The driving circuit comprises a soft start module, a control module, a driving module and a current mirror module. The control module is respectively connected with the soft start module, the driving module and a source electrode of a fourth power tube in the charge pump circuit, and the current mirror module is respectively connected with the soft start module and the driving module. The driving module is used for being connected with a grid electrode of a first power tube, a grid electrode of a second power tube, a grid electrode of a third power tube and a grid electrode of a fourth power tube in the charge pump circuit. The driving circuit provided by the invention can ensure that the current flowing through the third power tube in the initial stage of soft start is relatively small, so that the safety of the charge pump circuit is ensured; the current flowing through the third power tube is gradually increased, so that the output voltage of the charge pump circuit can be ensured to reach the target voltage after the soft start is finished, and the charge pump circuit can work normally.

The invention provides a control method and device for constant-arc-length welding of an aluminum alloy welding wire with the diameter of 1.6 mm, and relates to the technical field of aluminum alloy welding. The control method for constant-arc-length welding of the aluminum alloy welding wire with the diameter of 1.6 mm is applied to a consumable electrode type welding method and comprises a plurality of continuous welding periods. Each welding period comprises a pulse welding period and an arc loop detection period formed after the pulse welding period; the electric arc loop detection period comprises a welding wire forward feeding period, a first electric arc detection period, a second electric arc detection period and a welding wire withdrawing period. By means of the synergistic effect of combination of multi-stage speed control and current adjustment, the pulse arc length is accurately maintained in the welding wire withdrawing period, controllability and arc length stability in the droplet transition process are achieved, the problems of arc drift, wire adhesion and poor welding bead forming in the prior art are effectively solved, and the welding quality is improved. The arc length can be accurately controlled, the wire sticking phenomenon is reduced, and the welding stability is improved.

The invention discloses an electrolytic bath rectification power supply control method suitable for renewable energy source hydrogen production, and relates to the technical field of water electrolysis hydrogen production control. The method comprises the following steps: calculating output power by collecting voltage and current and combining a self-adaptive weighted moving average algorithm, collecting starting and stopping states, current, voltage, temperature and bus electrical parameters of an electrolytic cell, and constructing an input parameter set; inputting the set into a scheduling model, combining historical operation and environment prediction data, predicting available power of a next period, and generating a start-stop control instruction and a target working current set value; dynamic current regulation and access control are executed to realize real-time matching of a load and a power supply; the system has an amplitude limiting correction and operation feedback mechanism and supports adaptive updating of the model. The method has the capabilities of prospective prediction, adaptive scheduling, multi-objective optimization and fault-tolerant management, improves the adaptability of the system to a fluctuating power supply and the intelligent level of rectification control, and is suitable for wind power, photovoltaic and other renewable energy hydrogen production systems.

The invention discloses a voltage compensation method, a voltage compensation circuit and electronic equipment. The voltage compensation method comprises the following steps: acquiring bus voltage in a power switch circuit and energy storage current in an energy storage compensation circuit; obtaining a bus amplitude limiting voltage target value by using the bus voltage target value and the bias adjustment value, and subtracting the bus voltage from the bus amplitude limiting voltage target value to obtain a bus amplitude limiting voltage error value; performing proportional integral operation and amplitude limiting processing on the bus amplitude limiting voltage error value to obtain an energy storage current target value, and subtracting the energy storage current from the energy storage current target value to obtain an energy storage current error value; performing proportional integral operation on the energy storage current error value to obtain a current regulation output value; and a compensation control signal is obtained by using the current regulation output value and is used for triggering the energy storage compensation circuit to change the charging and discharging states, so that the bus voltage is compensated and regulated to a set threshold range. Through the above mode, the voltage compensation method can effectively stabilize the bus voltage within the set threshold range, and the control logic is simple.

A switching converter includes a power circuit, a control circuit, and a regulation circuit. The power circuit regulates an output current through the load with at least one main switching transistor. The control circuit couples to the power circuit and controls on and off states of the at least one main switching transistor in accordance with a reference voltage received to control a minimum peak inductor current through an inductor. The regulation circuit provides the reference voltage to the control circuit and adaptively regulates the reference voltage in accordance with the input voltage and the output voltage. An effect of a duty ratio on an inductor current can be canceled out when the duty cycle changes due to fluctuations in the input and output voltages. An output current is kept approximately constant in a burst mode, thereby effectively reducing output ripple and noise.