2325 results about "Logic Control" patented technology

The invention relates to the technical field of computers, provides an automatic test script dynamic generation method and system based on multi-modal AI recognition, and is used for remarkably improving the coverage dimension and execution robustness of test cases while reducing the manual maintenance cost. The method comprises the following steps: acquiring target test interface data, extracting dynamic interaction characteristics in the test interface data, calling a trained target detection network to carry out element positioning processing on the test interface data, generating an interface element coordinate set, and generating a target test interface based on the interface element coordinate set. Calling a character recognition network to carry out multi-modal feature analysis on the interface element distribution information, and generating a feature fusion result containing character semantic features and icon classification features; the feature fusion result is input into a script generation model for dynamic path planning processing, automatic test script elements are output, and the automatic test script elements comprise logic control instructions generated based on the element operation sequence and coordinate self-correction parameters.

The invention relates to the technical field of the Internet of Things, and discloses a machine room equipment environment monitoring method and system based on the Internet of Things, and the method comprises the steps: constructing an edge calculation hardware system of the Internet of Things to obtain an integrated terminal which integrates a communication unit, an acquisition unit and a control unit; performing multi-channel parallel acquisition and edge calculation analysis on equipment and environment parameters in the machine room to obtain a standard data tuple and an analysis data packet; executing local hierarchical storage and logic control to obtain a control instruction and storage data; executing three-layer network communication interaction on the storage data to obtain a remotely accessible monitoring view; according to the method, intelligent alarm and system self-maintenance are achieved, graded and classified alarm information and a system state report are obtained, the data transmission amount is greatly reduced, meanwhile, the system response delay is reduced, the control decision accuracy is improved, and the misoperation risk is reduced.

The invention relates to the technical field of process control, in particular to an intelligent environment monitoring and adjusting system for lip fish culture, which comprises an environment parameter monitoring module, a multivariable linkage calculation module, a self-adaptive adjusting module, a fuzzy logic control module and an abnormity emergency response module. According to the method, the trend value is formed through time-phased grouping analysis and relevance calculation of the water quality parameters, dynamic prediction of the breeding environment change is achieved, the cooperative adjustment capacity among the dissolved oxygen, the water temperature and the ammonia nitrogen concentration is optimized through analysis of the multi-parameter linkage relation, the accuracy of environment control is improved, and the method is suitable for large-scale popularization and application. The cooperation efficiency of oxygen pump frequency and temperature control equipment response is improved through real-time matching calculation of equipment operation parameters, the rapid adaptive capacity to water quality changes is enhanced, abnormal fluctuation monitoring is combined with equipment linkage adjustment, rapid response during water quality sudden change is ensured, and the adverse effect of environment fluctuation on fish growth is reduced.

The invention relates to the technical field of motor control, and discloses a permanent magnet synchronous motor control system and method for an electric drive hydraulic source, and the system comprises a data collection module which is used for collecting the state parameters of the electric drive hydraulic source and the operation data of a permanent magnet synchronous motor in real time through multiple sensors; the sensor redundancy and fault-tolerant module is used for performing parallel sampling through hardware dual-redundancy configuration and dual sensors; the self-adaptive fuzzy logic control module is used for dynamically adjusting a rotating speed instruction and a torque instruction of the permanent magnet synchronous motor based on the collected state parameters; a data driving optimization module; and a digital twinning prediction maintenance module. A self-adaptive fuzzy logic control module is used for dynamically generating a motor rotating speed and torque instruction based on parameters such as real-time pressure, flow deviation and change rate, a fuzzy logic algorithm is used for processing a nonlinear time-varying load and quick response, a self-adaptive fuzzy logic control rule weight and a power conversion circuit parameter are optimized through a reinforcement learning algorithm, and the control precision is improved. And dynamic self-optimization of permanent magnet synchronous motor control is realized.

The invention discloses a multi-modal self-adaptive clamping system for assembling key components of a humanoid robot and a control method of the multi-modal self-adaptive clamping system, and the system comprises a multi-modal sensing module which is used for collecting assembling parameters; the edge calculation module is used for generating a control instruction by utilizing a multi-mode deep learning model according to the assembly parameters; the cloud service module is used for generating distillation data according to the assembly parameters; the self-adaptive clamping module is used for clamping and moving key components of the humanoid robot; and the programmable logic control module is used for controlling the self-adaptive clamping module to execute component assembling operation according to the control instruction and the distillation data. According to the invention, a multi-mode self-adaptive clamping system is realized, and the efficiency and the clamping stability are improved. The robot can be widely applied to the technical field of industrial robots.

The invention discloses an interlocking remote control system based on a low-voltage power distribution cabinet. The interlocking remote control system comprises a data acquisition module for acquiring operation data of the power distribution cabinet in real time; the edge calculation unit is used for data preprocessing, interlocking logic calculation and anomaly detection; the interlocking control execution module is used for receiving a control signal of the edge computing unit and realizing protective disconnection and restart of the equipment; the communication module supports two-way transmission of data in the data acquisition module, the edge computing unit and the cloud; the interlocking remote control method based on the low-voltage power distribution cabinet comprises the following steps: S1, system architecture design; s2, data acquisition and preprocessing; s3, constructing a self-adaptive interlocking logic control algorithm; s4, edge calculation and cloud collaboration; and S5, verifying and optimizing system functions. According to the invention, the health state of the equipment can be monitored, faults can be rapidly identified, the equipment is protected through an interlocking control mechanism, the operation efficiency of the low-voltage power distribution cabinet is effectively improved, the equipment safety is improved, faults are reduced, and the maintenance cost is reduced.

The invention belongs to the technical field of integrated circuits, and particularly relates to a speed-adjustable fan driving and anomaly detection circuit with high reliability and low cost. Comprising a current expansion driving module for providing a voltage FCC stabilized by an LDO for a fan and performing current expansion on an output current of the LDO to drive the fan; the logic control module is connected with the current expansion driving module and is used for adjusting a control signal ADJlt; n: 0gt; the value of the voltage FCC output by the LDO is changed; the open circuit and locked-rotor detection module is connected with the logic control module and the VIN port of the LDO; and the short circuit detection module is connected with the logic control module and the output end of the LDO, outputs a signal to a state flag bit FTO, and judges whether the fan is in a normal working state, an open circuit state, a locked-rotor state or a short circuit state or not according to the waveform and the level of the state flag bit FTO. The speed-adjustable fan driving circuit is integrated, and the function of detecting various abnormal states of the fan is achieved.

The invention provides a device for inhibiting drain-source overvoltage and overcurrent through active gate drive of a silicon carbide MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor), aiming at solving the problem of voltage or current overshoot caused by circuit parasitic parameters in a high-speed switching process of the SiC MOSFET and simultaneously considering the switching speed and energy loss balance. According to the device, drain-source voltage vdc and direct-current bus voltage of the SiC MOSFET are collected to serve as feedback signals, and gate driving voltage and equivalent gate resistance are dynamically adjusted; in a key stage (a Miller plateau switching-on period and a voltage rising period switching-off period) of a switch transient state, a gate resistance network is switched through a logic control circuit, and suppression of drain current overshoot and drain-source voltage overshoot is realized. Simulation verification shows that the device can reduce voltage overshoot by 20%-30% and current overshoot by 25%-60%, only a single voltage feedback channel is needed, the cost is obviously lower than that of a traditional multi-signal acquisition active gate driving scheme, and the device is suitable for a high-efficiency SiC MOSFET power converter.

The invention belongs to the technical field of integrated circuits, and particularly relates to a speed regulation driving and anomaly detection circuit of a cooling fan. Comprising a current expansion driving module for providing a voltage FCC stabilized by an LDO for a fan and performing current expansion on an output current of the LDO to drive the fan; the logic control module is connected with the current expansion driving module and is used for adjusting a control signal ADJlt; n: 0gt; the value of the voltage FCC output by the LDO is changed, so that the speed of the fan is regulated; and the sampling detection module is connected with the logic control module and the VIN port of the LDO, samples the current of the fan through a sampling resistor, converts the current into a voltage V0, compares the voltage V0 with a reference voltage Vref, and outputs a voltage signal to the level shift circuit. The speed-adjustable fan driving circuit is integrated, detection of various abnormal states of the fan is achieved, and the speed-adjustable fan driving circuit has the outstanding advantages of being simple in PCB layout and low in cost.

The invention discloses a multi-channel analog-to-digital converter for multi-channel frequency division multiplexing and a conversion circuit and method thereof, and the frequency division multiplexing multi-channel analog-to-digital conversion circuit comprises an analog frequency conversion module which is used for receiving N paths of modulation clock signals, and generating N paths of modulation clock signals according to the modulation clock signals, n paths of input signals are modulated to preset frequencies of the input signals respectively, and N paths of modulation signals are obtained; wherein N is greater than or equal to 2, and N is a positive integer; the frequency bands where the N paths of modulation signals are located are not overlapped; the analog adder is used for combining the N paths of modulation signals to obtain one path of analog signal; the input end of the analog-digital conversion module is connected with the analog-digital conversion module; the digital logic control module is used for receiving the N paths of modulation clock signals and separating the digital signals into N paths of digital signals which are output in parallel. Multi-channel analog-to-digital conversion can be realized by adopting one analog-to-digital converter, the hardware volume, cost and power consumption can be reduced, and the analog-to-digital conversion rate and precision can be improved.

The invention belongs to the technical field of integrated circuits, and particularly relates to an integrated speed regulation fan and an abnormal state detection circuit. Comprising a current expansion driving module for providing a voltage FCC stabilized by an LDO for a fan and performing current expansion on an output current of the LDO to drive the fan; the logic control module is connected with the current expansion driving module and is used for adjusting a control signal ADJlt; n: 0gt; the value of the voltage FCC output by the LDO is changed, so that the speed of the fan is regulated; and the sampling detection module is connected with the logic control module and the fan, samples the current of the fan through a sampling resistor, converts the current into a voltage V0, compares the voltage V0 with a reference voltage Vref, and outputs a voltage signal to a level shift circuit. The speed-adjustable fan driving circuit is integrated, detection of various abnormal states of the fan is achieved, and the speed-adjustable fan driving circuit has the outstanding advantages of being simple in PCB layout and low in cost.

The invention relates to an electromagnetic pulse collaborative deicing system based on multi-mode perception. The system comprises a power supply system; the FPGA controller is used for logic control and signal processing, calculating electromagnetic pulse parameters and realizing high-speed and accurate deicing instruction scheduling; a sensing module; a real-time detection system; a pulse generation unit; and the deicing module executes an electromagnetic pulse deicing action and efficiently removes ice covered on the surface of the power grid. The invention further discloses an electromagnetic pulse collaborative deicing method based on multi-mode sensing. Through the electromagnetic pulse technology, the power transmission and distribution line ice can be efficiently removed, compared with a traditional thermal ice melting method, the energy consumption is greatly reduced, the response speed is remarkably increased, and the deicing strategy and parameters are dynamically adjusted according to real-time monitoring data based on the real-time signal processor of the FPGA; the power supply priority can be dynamically adjusted according to the energy supply condition, the energy is improved to the maximum extent, and an accurate deicing basis is provided for the system.

The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle detection tracking device, method and equipment, which comprises a data sensing unit, a calculation unit, a mechanical and power supply unit, a communication and storage unit and a countering execution unit, and is characterized in that the data sensing unit is used for acquiring image data and servo turntable rotation angle data; the calculation unit is used for deploying a lightweight neural network model and a multi-algorithm fusion process, processing sensor data and realizing unmanned aerial vehicle target detection and tracking logic control; the mechanical and power supply unit is used for providing physical support, servo motion capability and energy supply for the device; the communication and storage unit is used for real-time data transmission and storage and encryption archiving of historical data and image videos; and the countering execution unit is used for implementing signal interference or physical interception on the detected and tracked target. Therefore, the problems of easy target loss, low small target identification precision, poor complex environment adaptability, insufficient countering means and the like of a traditional device are solved.

An output driver includes a pull-up transistor having a first current path coupled between a supply voltage and an output node; a pull-down transistor having a second current path coupled between the output node and a reference ground; the gate driving circuit is used for driving the control end of the pull-up transistor according to the first control signal and driving the control end of the pull-down transistor according to the second control signal; the logic control circuit is used for generating a first control signal and a second control signal according to an input signal and an enable control signal; and the current source circuit is used for respectively providing pull-down or pull-up current related to the power supply voltage to the control end of the pull-up transistor or the pull-down transistor when the output signal at the output node is in a rising edge or falling edge process, so as to counteract the influence of the power supply voltage on the transmission time of the output signal. Therefore, stable transmission time can be maintained in a wide power supply voltage range.

The invention provides an industrial control method and system, a medium, equipment and a program product. The method comprises the following steps: generating a control instruction by using a logic control module; the control instruction is transmitted to the equipment driving module; an equipment driving module is used for driving execution equipment to execute corresponding operation of the control instruction; wherein the logic control module and the equipment driving module are physically isolated or isolated by using middleware. In other words, independent operation between the logic control module and the equipment driving module is realized through physical isolation or middleware isolation, so that tasks are ensured to be mutually independent and do not interfere with each other, and the stability and safety of the system are improved. In addition, resource competition between the logic control module and the device driving module can be reduced, delay and conflicts are reduced, and real-time performance is improved. In addition, the logic control module and the equipment driving module can be independently developed, tested and optimized, so that the operation and maintenance cost is reduced.

The invention discloses an asynchronous electroencephalogram signal acquisition system and method, and belongs to the technical field of biomedical engineering and neuroscience, and the system comprises a front-end asynchronously-triggered electroencephalogram signal acquisition circuit which is used for achieving asynchronous acquisition of electroencephalogram signals and improving the quality of the electroencephalogram signals so as to facilitate subsequent analysis and processing; the embedded parallel logic control module is used for realizing signal processing and data flow management; an electroencephalogram asynchronous physiological calculation chip is arranged in the embedded parallel logic control module and used for improving the speed and accuracy of data processing and physiological calculation of emotions, and emotion classification is achieved. By the adoption of the asynchronous electroencephalogram signal collecting system and method, the electroencephalogram signals can be efficiently collected and processed, and emotional state analysis is facilitated.

The invention discloses a firmware upgrading system and method, and relates to the technical field of firmware, and the firmware upgrading method comprises the steps that a standby memory is newly arranged in the firmware upgrading system, and in the upgrading process, when a logic controller obtains a first firmware upgrading instruction, the control right of the standby memory is obtained. Moreover, when the control right of the standby memory is obtained, the upgrade firmware is read from the standby memory, and the upgrade firmware is verified. And when the verification is passed, a verification completion notification is sent to the management controller, and the control right of the main memory and the control right of the standby memory are both handed over to the management controller. Therefore, the management controller can automatically read the upgrade firmware from the standby memory and write the upgrade firmware into the main memory to complete firmware upgrade operation. In the firmware upgrading operation process, the logic controller does not need to perform reset operation on the management controller, so that the management controller can normally perform business processing.

The invention relates to a time-sharing measurement device for carbon content in flue fly ash. The device mainly comprises a sampler, a detection part and a control module, the sampler is provided with a plurality of sampling pipes, each sampling pipe is provided with an adjusting valve, time-sharing sampling is achieved through PLC logic control, and full-time-period fine coverage is ensured. The separation component separates fly ash from gas and collects a fly ash sample, and the detection component integrates a spectral analysis unit and a data processing unit, performs spectral analysis on the fly ash sample and calculates the carbon content. According to the method, multiple objective functions such as the fly ash carbon content, the combustion efficiency and the system stability are optimized at the same time by selecting multi-dimensional equipment process parameters and fly ash measurement data and adopting an evolutionary optimization algorithm, global optimization is achieved, the dependency relationship among the process parameters is fully considered, falling into a local optimal solution is avoided, the optimization efficiency is improved, and the method is suitable for popularization and application. The method can systematically coordinate the contradictory relation among all targets, achieves the maximization of the operation efficiency of the system while detecting the fly ash, and enables the combustion system to operate stably.

The satellite-borne heterogeneous computing system comprises a CPU (central processing unit) module, an FPGA (field programmable gate array) module and an NPU (network processing unit) module, the CPU module is used for receiving instructions and telemetering polling of a satellite service computer, reading load scientific data received by the FPGA module, providing installation and operation environments for various types of universal application programs, and scheduling and controlling the NPU module; the FPGA module is used for providing external interface expansion, receiving load scientific data and sending the load scientific data to the CPU module, and is also used for providing a logic control function comprising SPI FLASH triple modular redundancy logic and barking reset; and the NPU module is used for performing high-performance calculation and providing a high-computing-power environment for the system. The system has high flexibility, reliability and universality, and can operate various computing software and neural network algorithms; the power consumption is low, and strict requirements of a satellite platform on power consumption can be met. And a plurality of systems are interconnected to form a distributed computing system, so that the performance is extremely high.

The invention belongs to the field of electrical variable measurement, and particularly relates to a single battery equalization management method for a lithium battery BMS (Battery Management System) protection board, which comprises the following steps of: acquiring voltage, temperature, total current and cycle index of each single battery in real time; based on a second-order equivalent circuit model and an extended Kalman filtering algorithm, multi-source information is fused, and the health state and the charge state are estimated with high precision; constructing a dynamic equilibrium trigger threshold fusing the charge state standard deviation, the range and the health state attenuation factor; a bidirectional flyback or multi-winding transformer active equalization strategy is selected according to the inconsistent distribution characteristics and the temperature field, and equalization current is accurately controlled through pulse width modulation; and continuously monitoring the efficiency, the temperature rise rate and the convergence in the equalization process, and dynamically optimizing the equalization parameters by using the fuzzy logic controller until the inconsistency reaches the standard. According to the technical scheme, accurate, self-adaptive, high-efficiency and safe single battery equalization management can be realized, the service life of the battery pack is effectively prolonged, and the operation reliability of the system is improved.

The invention relates to the technical field of boiler tail gas treatment, in particular to a boiler tail gas multi-pollutant cooperative control system based on linkage of a PLC and a frequency converter. The system comprises a data acquisition module, a PLC control module and a collaborative optimization module. Concentration data of pollutants in boiler tail gas are collected in real time through the data collection module, the boiler tail gas is introduced into the desulfurization and denitrification tower through the inlet induced draft fan, the PLC control module sets driving rules of the inlet induced draft fan through a logic controller of a PLC, the operation frequency of the inlet induced draft fan is dynamically adjusted according to the content of the pollutants in the boiler tail gas, and the desulfurization and denitrification effect of the boiler tail gas is improved. And the collaborative optimization module returns the tail gas which does not reach the standard to a boiler for secondary desulfurization and denitrification, the tail gas which reaches the standard is introduced into a dust removal tower through an outlet induced draft fan, the electric dust removal voltage is adjusted according to the content of ammonia gas in the tail gas, and linkage control over desulfurization, denitrification and dust removal is achieved by taking the minimum operation cost as the target and adopting a genetic algorithm.

The invention discloses a universal control box and method based on a programmable control logic library, and the method is characterized in that the method comprises the steps: capturing an operation feature signal of controlled equipment in real time through a signal collection module, and extracting an equipment feature vector to construct an equipment digital fingerprint; performing matching degree calculation on the feature vector and a control module of a pre-stored logic library, selecting a target logic control module, and generating an expected control parameter in a virtual sandbox; driving equipment to run through the target module, acquiring running data in real time, and comparing the running data with expected parameters to generate a deviation report; aggregating historical data based on the deviation report, and performing parameter increment optimization on the target module to generate a versioned patch; fusing the patch and the equipment full-dimension log to construct a digital twinborn body, predicting the health state of the equipment based on twinborn data, and outputting a logic library iteration instruction; and flexible control is driven by a data closed loop, so that the problems of customized cables and non-standard mechanical trepanning caused by the difference of controlled equipment of the industrial control box are solved, and one box is universal.

The invention discloses an automobile light state automatic detection system and method. The automobile light state automatic detection system comprises a control module, a sensor module, an image acquisition module and a reminding module, the sensor module is used for detecting operation actions of a driver on a vehicle, the output end of the sensor module is connected to the control module, the image acquisition module is used for acquiring vehicle light image information corresponding to the operation actions of the driver, and the output end of the image acquisition module is connected to the control module; the control module judges whether the vehicle lamp corresponding to the current operation action of the driver is normal or not based on the collected vehicle light image information. The method has the advantages that the lamplight state is detected in an image recognition and logic control mode, the fault state of vehicle lamplight can be effectively detected, meanwhile, cost is low, and operation is convenient.

The invention discloses an ultrahigh-pressure jet cleaning system with an intelligent adjusting function. According to the system, the control algorithm sub-module is integrated with the PID controller, the fuzzy logic controller and the machine learning model, so that the control algorithm sub-module can realize accurate monitoring and intelligent adjustment of the system operation state, and the efficiency and the stability of the cleaning process are ensured. The PID controller quickly responds to errors, eliminates steady-state errors, reduces system overshoot and oscillation, and improves real-time performance and accuracy of control; the fuzzy logic controller is used for processing nonlinearity and uncertainty of the system, so that the adaptability of the system to complex working conditions is enhanced; and the fault rate and the maintenance cost of the equipment are reduced through predictive maintenance, so that the operation convenience, the operation reliability and the economical efficiency of the system are integrally improved, and efficient and intelligent cleaning experience is brought to users.

The invention relates to the technical field of urban rail train safety detection, and discloses a mechanical rail train detection method and system with a real-time detection function, and the method comprises the steps: collecting the states of obstacles on the two sides of a bogie and normally open and normally closed contacts of derailment detection travel switches; calculating a trigger state code; an emergency or non-emergency braking signal is output and an alarm is given; and when the state returns to normal and a reset instruction is received, the alarm is released and the initial state is recovered. In the prior art, obstacle or derailment detection is realized by depending on a multi-stage sensor and an electronic control unit, and especially in complex operation environments of high electromagnetic interference, high humidity dust and the like, stable and low-fault-rate real-time detection cannot be realized. Due to the fact that a redundancy judgment mechanism combining a pure mechanical structure and the vehicle programmable logic control unit LCU is adopted, high-reliability real-time detection of the obstacle and derailment state is achieved, and the safety and maintainability of a train system are improved.

The invention relates to a transient enhanced multi-phase Buck converter and a control method thereof, and the method comprises the steps: continuously monitoring and outputting a voltage reduction signal through a capacitance current sampling module, calculating a to-be-judged voltage signal, and outputting a high-level judgment signal when the to-be-judged voltage signal is greater than a reference voltage VTH1; after receiving the signal, the phase control module forcibly outputs logic control signals which are all high levels to the self-adaptive conduction time generation module; the multi-phase current conversion module synchronously conducts all single-phase Buck conversion circuits in the multi-phase current conversion module accordingly, so that the single-phase Buck conversion circuits simultaneously work to output the maximum current, and severe fluctuation of the output voltage is rapidly inhibited; and when the full-phase forced working mode is maintained until the voltage signal to be judged corresponding to the new voltage reduction signal is smaller than the reference voltage VTH2 again, the transient is relieved, and the system is automatically switched back to the conventional minimum current phase interleaving control mode. According to the scheme, the problem of response lag of a traditional multi-phase Buck under extreme load transient can be effectively solved.

The invention provides an interface chip, an electric vehicle controller and a control system thereof, relates to the technical field of integrated circuits, and can remarkably improve the universality of the electric vehicle controller and reduce the cost of the electric vehicle controller. The interface chip comprises: a plurality of universal pins, wherein the universal pins are used for providing an input port and / or an output port of a function signal communicated with the electric vehicle controller; the channel module is arranged for each universal pin, the channel module is provided with a plurality of functional ports, and the port types of the different functional ports are different; the communication pin and the plurality of function pins are used for being connected with components in the electric vehicle controller; the control module controls the universal pin to be communicated with the target function pin through the target function port in the corresponding channel module according to the configuration logic which is transmitted by the communication pin and is determined based on one or more function signals; wherein the target function port is matched with the signal type of the function signal communicated with the universal pin, and the target function pin is matched with the function signal communicated with the universal pin.

The invention discloses a bias starting control module, an RC filtering module, a bias current generating circuit, a voltage stabilizing circuit, a starting circuit, an on-chip power supply system, electronic equipment and a vehicle. The bias starting control module comprises a logic control unit and a first switching tube, and the logic control unit is connected with the power supply voltage end of the bias current generating circuit; the switching circuit is used for generating a switching signal according to power voltage of the bias current generating circuit and an external control signal; a grid electrode of the first switch tube is connected with the logic control unit, a drain electrode of the first switch tube is connected with a first end of a first resistor unit of the first RC filtering structure, a source electrode of the first switch tube is connected with a second end of the first resistor unit, and the first switch tube is used for being switched on when a switching signal correspondingly starts a quick start function; the first resistor unit is short-circuited. According to the module provided by the invention, the time constant of the first RC filtering structure is reduced, and the charging speed of the capacitor is accelerated, so that the quick start of the bias current generating circuit is realized.

The invention relates to a novel logic control multi-way reversing valve module for a drilling machine. According to the novel logic control multi-way reversing valve module for the drilling machine, switching of a single-action working mode and a linkage working mode of a pushing and pulling oil cylinder, a clamping device and a chuck of the drilling machine can be achieved. And in the single-action working mode, the second reversing link controls the third reversing link to be in the middle position, at the moment, the fourth reversing link and the fifth reversing link are controlled to conduct reversing, single-action actions of the clamping device and the chuck can be achieved, and single-action actions of the pushing and pulling oil cylinder are controlled through the first reversing link. In the linkage working mode, the second reversing link directly communicates an oil inlet path and an oil return path of the pushing and pulling oil cylinder with hydraulic control ports in the two sides of the third reversing link, so that the third reversing link is reversed to the a position or the b position from the middle position, the pushing and pulling oil cylinder is associated with the actions of the clamping device and the chuck, and the clamping device and the chuck are driven to move. Therefore, the purpose of linkage action of the three parts is achieved.

The present invention provides a DCDC converter using a dual-mode adaptive off-time timer, comprising: a PWM comparator, an on-time timer, a current detection module, an off-time timer logic control circuit, a drive control circuit, a dual-mode adaptive off-time timer, an inductor LOUT, an NMOS transistor MH, an NMOS transistor ML, a resistor RFB2, a resistor RFB1, and a capacitor COUT. The present invention is implemented by means of the PWM comparator, the on-time timer, the current detection module, the off-time timer logic control circuit, the drive control circuit, and the dual-mode adaptive off-time timer. The off-time of the internal dual-mode adaptive off-time timer has the function of adaptively adjusting an input signal and an output feedback signal, and a minimum off-time timer and an overcurrent off-time timer are simultaneously implemented by using one off-time timer.