Description: The AMC2576 series is a step-down switching regulator with all the required active functions. It is capable of driving 3A load with excellent line and load regulations. These devices are available in fixed output voltages of 3.3V, 5V, and an adjustable output version.
The AMC2576 series offers a high-efficiency replacement for popular three-terminal linear regulators. It requires only a minimum number of external components. Substantially, it reduces not only the area of board size but also the size of the heat sink. In some cases, no heat sink is required.
The ± 4％ tolerance on output voltage within specified input voltages and output load conditions is guaranteed. The oscillator frequency accuracy is within ±10％. External shutdown is included, featuring 70 A(typical) standby current. The output switch includes cycle-by-cycle current limitation, as well as thermal shutdown for full protection under fault conditions.
-The AMC2576 series is a step-down switching regulator with all the required active functions. It is capable of driving 3A load with excellent line and load regulations. These devices are available in fixed output voltages of 3.3V, 5V, and an adjustable output version . The AMC2576 series offers a high-efficiency replacement for popular three-terminal linear regulators. It requires only a minimum number of external components. Substantially, it reduces not only the area of board size but also the size of the heat sink. In some cases, no heat sink is required.The ± 4 tolerance on output voltage within specified input voltages and output load conditions is guaranteed. The oscillator frequency accuracy is within ± 10. External shutdown is included, featuring 70 Platform: |
Size: 21504 |
Author:dfdfdfd |
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Description: 异步电机矢量控制控制的matlab实现，系统采用3个pi调节器，分别为磁链调节器、转矩电流调节器、转速调节器，封装得比较好，适合初学者，版本matlab7.1-Vector control of induction motor control to achieve matlab, system modulator 3 pi, respectively, flux regulator, torque current regulator, speed regulator, a better package than is suitable for beginners, version matlab7.1 Platform: |
Size: 11264 |
Author:江明 |
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Description: 本课题主要是在Simulink环境中对双闭环直流调速系统进行仿真设计，具体内容有：对电流调节器和转速调节器进行校正设计；对电流环和转速环进行时域和频域分析；对调速系统进行跟随性和抗扰性分析。-This issue is mainly in the Simulink environment on the Double Loop DC Speed Control System simulation with the specific content: The current regulator and speed regulator for correct design of the current loop and speed loop time domain and frequency domain analysis swap speed system and immunity following analysis. Platform: |
Size: 772096 |
Author:要执勤 |
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Description: This circuit uses the AC6 block of SimPowerSystems™ library. It models a permanent magnet (PM) synchronous motor drive with a braking chopper for a 3HP motor.
The PM synchronous motor is fed by a PWM voltage source inverter, which is built using a Universal Bridge Block. The speed control loop uses a PI regulator to produce the flux and torque references for the vector control block. The vector control block computes the three reference motor line currents corresponding to the flux and torque references and then feeds the motor with these currents using a three-phase current regulator.
-This circuit uses the AC6 block of SimPowerSystems™ library. It models a permanent magnet (PM) synchronous motor drive with a braking chopper for a 3HP motor.
The PM synchronous motor is fed by a PWM voltage source inverter, which is built using a Universal Bridge Block. The speed control loop uses a PI regulator to produce the flux and torque references for the vector control block. The vector control block computes the three reference motor line currents corresponding to the flux and torque references and then feeds the motor with these currents using a three-phase current regulator.
Platform: |
Size: 9216 |
Author:jurifa |
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Description: The induction motor is fed by a current-controlled PWM inverter which is built using a Universal Bridge block. The motor drives a mechanical load characterized by inertia J, friction coeficient B, and load torque TL . The speed control loop uses a proportional-integral controller to produce the quadrature-axis current reference iq* which controls the motor torque. The motor flux is controlled by the direct-axis current reference id*. Block DQ-ABC is used to convert id* and iq* into current references ia*, ib*, and ic* for the current regulator. Current and Voltage Measurement blocks provide signals for visualization purpose. Motor current, speed, and torque signals are available at the output of the Asynchronous Machine block.-The induction motor is fed by a current-controlled PWM inverter which is built using a Universal Bridge block. The motor drives a mechanical load characterized by inertia J, friction coeficient B, and load torque TL . The speed control loop uses a proportional-integral controller to produce the quadrature-axis current reference iq* which controls the motor torque. The motor flux is controlled by the direct-axis current reference id*. Block DQ-ABC is used to convert id* and iq* into current references ia*, ib*, and ic* for the current regulator. Current and Voltage Measurement blocks provide signals for visualization purpose. Motor current, speed, and torque signals are available at the output of the Asynchronous Machine block. Platform: |
Size: 15360 |
Author:jurifa |
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Description: 介绍了几种恒流源电路的设计，包括线性恒流源、开关恒流源、集成稳压器恒流源的结构原理及特点。-Describes several constant current source circuit design, including linear constant current source, switching constant current source, an integrated voltage regulator current source and characteristics of the structural principle. Platform: |
Size: 151552 |
Author:paul |
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Description: A3977是一个完整的微电机驱动，与内建
翻译。它的设计操作双极步进电机
全，半，季，和第八步的模式，与输出驱动器
35 V和±2.5答：A3977的功能包括一个固定
关断时间电流稳压器，具有操作能力
慢，快或混合衰减模式
-The A3977 is a complete microstepping motor driver, with builtin
translator. It is designed to operate bipolar stepper motors in
full-, half-, quarter-, and eighth-step modes, with output drive
capability of 35 V and ±2.5 A. The A3977 includes a fixed
off-time current regulator that has the ability to operate in
slow-, fast-, or mixed-decay modes Platform: |
Size: 710656 |
Author:bin |
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Description: 感应电机矢量控制系统中，电流调节器的仿真模型-Induction motor vector control system, the simulation model of the current regulator Platform: |
Size: 8192 |
Author:刘媛媛 |
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Description: This paper deals with digital control of a series
active filter integrated with a diode rectifier where the series
active fdter is controlled to function as a current source.
A predictive current regulator is considered for the series ac-
tive filter to achieve good ripple characteristics and predictable
switching losses. The operating conditions, and the effect
thereof on the current regulator are considered and oversam-
pling and prediction of the load voltage is suggested to improve
the active filtering performance without increasing the switching
frequenc-This paper deals with digital control of a series
active filter integrated with a diode rectifier where the series
active fdter is controlled to function as a current source.
A predictive current regulator is considered for the series ac-
tive filter to achieve good ripple characteristics and predictable
switching losses. The operating conditions, and the effect
thereof on the current regulator are considered and oversam-
pling and prediction of the load voltage is suggested to improve
the active filtering performance without increasing the switching
frequenc Platform: |
Size: 324608 |
Author:nek |
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Description: 直流PWM-M 可逆调速系统的仿真模模型在直流PWM-M系统主电路模型基础上增加了转速调节器ASR 和电流调节器ACR ，ASR 和ACR 都采用带输出限幅的PI 调节器。-Reversible DC PWM-M model simulation mode speed control system in the main circuit of the base model DC PWM-M system adds speed regulator ASR and current regulator ACR, ASR and ACR are used with output limiter PI regulator. Platform: |
Size: 9216 |
Author:高运泽 |
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Description: In this paper, a dq model based on transformation
theory for five-phase induction machines is presented. A detailed
implementation of an indirect-type five-phase field-orientation
control including the hysteresis-type pulsewidth modulation
(PWM) current regulator is described. A method for continuous
and disturbance-free operation of a five-phase field-orientedcontrolled
induction motor drive with complete loss of one, two,
or even three legs of the inverter or motor phases is described.
A complete analysis and computer simulation of this control
technique is included. Platform: |
Size: 197632 |
Author:nek |
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