电压反馈
- 网络Voltage Feedback;VFB
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本文采用电压反馈的闭环控制方式,设计完成了数字PID调节器,使逆变器输出稳定的正弦波。
The paper takes advantage of a single close-loop control method based on voltage feedback , and enables the inverter to produce steady sine waves by the digital PID adjuster designed .
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仿真的内容包括LLC谐振电源的电路部分、输出电压反馈部分、控制部分以及PWM脉冲产生产生模块。
The simulation includes the circuit , the output voltage feedback section , the control section , and the PWM pulse generation module .
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电压反馈型Boost变换器的混沌现象研究
Study on Chaotic Phenomena of Boost Converter based on Voltage Feedback Control
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通过电压反馈PI算法调节送丝速度,实现了焊接规范的全闭环控制。
All the welding parameters are controlled with closed - loop .
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电压反馈型Boost变换器DCM的精确离散映射及其分岔和混沌现象
The Precise Discrete Mapping of Voltage-Fed DCM Boost Converter and Its Bifurcation and Chaos
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电压反馈型BUCK变换器环路补偿设计
Design of Compensation Network for Voltage Mode Buck Regulators
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MOSFET漏源极电压反馈限流
MOSFET Drain - to - Source Voltage Feed back to Limit Current
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电压反馈型DC-DC变换器的稳定性研究
Study on stability of the voltage-mode DC-DC converters
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文中建立了高频链逆变电源主电路拓扑的状态空间模型,在频域内对高频链逆变电源系统的电压反馈控制回路进行了PI调节及网络补偿。
And voltage feedback control loop is designed with PI regulator and compensating network in frequency domain based on the state-space model .
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该DC-DC转换器采用了当前最流行的几种技术:电流/电压反馈控制、PWM调制以及同步整流控制。
This DC-DC converter adopts the most prevalent technology at present , such as current mode feedback , PWM modulation and synchronous rectification .
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文章首先对单片开关DC-DC转换器的各种类型进行了介绍,对电压反馈和电流反馈两种控制模式进行了原理阐述和特点对比,然后根据设计要求进行了本文整体电路的设计。
Firstly , the different control modes of monolithic switch power converter were introduced and the current-control-mode and voltage-control-mode were compared in this paper .
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利用Bode图分析方法,对多相电源的小信号稳定性和动态特性做了系统上的分析,特别考虑了电压反馈网络和电流反馈网络的各个参数对系统稳定性的影响。
A systematic approach is presented for assessing the small signal stability and dynamic performance of the multiphase converter .
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送丝速度通过两个PI调节器进行双闭环控制,分别进行电枢电压反馈和电弧电压反馈。
Two PI adjusters were applied for wire feeding velocity control , one performed motor armature voltage feedback , the other one executed arc voltage feedback to determine the given velocity .
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本设计采用电压反馈,根据期望值和反馈值的偏差对PWM的占空比进行PID调节,以提高稳压电源的精度。
In order to improve the precision , a microprocessor is used to modulate the duty ratio of PWM in PID regulation according to the deviation between the expected value and the feedback voltage .
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在软件设计中,采用瞬时电压反馈,并采用PI控制算法,从而产生高质量的电压输出波形,减小输出电压中的谐波含量。
In software design , this article uses the transient voltage feedback and the PI control algorithm , thus result high quality output voltage waveform , reduces the harmonics content of output voltage .
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因此设计的PWM控制器在电压反馈环中引入平均电流反馈以扩展环路带宽,并对DC-DCbuck的PWM控制器反馈输入端上加以改进解决了相位超前的问题。
The average current feedback is introduced in voltage feedback loop to widen the loop bandwidth . An improvement of DC-DC Buck PWM controller is made to solve the pre-phase problem .
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在新型开环DC/DCboost型变换器基础上,进一步给出了具有电压反馈回路的闭环DC/DCboost型变换器实现电路,并对闭环回路的稳压机理进行了分析。
On the base of new type of open-loop DC / DC Boost converter , we have designed a new type of closed-loop DC / DC Boost converter with voltage feedback and analyzed the principle of voltage stabilization of closed-loop circuit .
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该设计引入了输入、输出电压反馈控制电路,利用工作于线性区的MOS管压控电阻特性,实现了动态、优化的斜坡补偿。
With the utilization of the voltage controlled resistor characteristics of MOS transistor and the introduction of a feedback circuit controlled by input and output voltages , a dynamic and optimal slope compensation circuit is realized .
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本文在超声发生器中加入功率因数校正电路(APFC),并利用单片机控制数字电位器实现了对电压反馈网络的调节,从而实现APFC输出电压在一定范围内的自适应控制。
The self-adaptable control of output voltage could be realized under certain range by adding a APFC in ultrasonic generator and adjusting voltage feedback network with digital potentiometers .
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基于传统的电压反馈运算放大器(VFA),设计互易放大器,给出负电阻的范围,并用EWB进行仿真,结果表明设计完全正确。
A reciprocal amplifier based on VFA is designed and reach of negative resistor is given . The result is simulated by the EWB software , which is correct .
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系统在空载时由于采用电压反馈控制使PWM调制器间断地输出脉冲,间歇振荡的频率低而脉冲宽度窄,不但空载损耗小,而且使变压器不易饱和;
On idle , using the voltage-feedback control makes PWM modulator output the pulse disjointedly with blocking-oscillation frequency lowered and the pulse width narrowed . Accordingly not only the no-load loss is less , but also the transformer is not easy to saturate .
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文章在介绍电压反馈型BUCK变换器的主拓扑和反馈控制模式的基础上,进一步探讨了反馈控制的传递函数和环路参数的设计,说明了双极点-双零点补偿网络的设计原理与具体过程。
The control mode and main topology of single phase voltage mode BUCK regulator are introduced at first , then the design of transfer function and loop parameters are discussed , designing principle of two-pole and two-zero compensation Network and concrete design process are also shown .
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以实际工程项目中要求的中频电源为研究对象,设计了一种基于SPWM技术的中频电源系统方案.系统以单片机和SPWM信号发生芯片为核心,利用频率和电压反馈实现了中频电源设计。
With the intermediate frequency power supply in the practical engineering project as the research object , a scheme of intermediate frequency power supply is developed , which utilizes microcontrollers and signal generator of SPWM to realize the design by feedback of frequency and voltage .
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压电电压反馈控制在异形销孔镗削中的应用
The Application of Piezoelectric Voltage Feedback Control in Noncircular Pinhole Boring
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超高速,高输出电流,电压反馈型放大器。
Very High Speed , High Output Current , Voltage Feedback Amplifier .
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内部电路采用先进的电流型控制方式,在常规的电压反馈的基础上,增加了对开关管电流的检测,构成了电流反馈回路。
Internal circuits used advanced current-mode control , based on conventional voltage-mode control .
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电压反馈放大器的反馈电阻值更宽。
The voltage-feedback-amp 's feedback-resistance value is more forgiving .
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双宽带,噪声,电压反馈。
Dual Wideband , Noise , Voltage Feedback .
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同时采用电压反馈,使输出电压为近似平滑的稳定直流电压。
Meanwhile , the feedback of output voltage stabilize and smooth the DC output voltage .
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为了提高系统电源抑制比,降低谐波失真,本文设计了电压反馈环。
In order to improve the PSRR and THD , voltage feedback loop is applied .