控制电压和由恒流电源输出的电流之间的关系改变可能会产生漂移。
The relationship between the control voltage and the current output by the constant-current source may shift.
在连接交流电源之前，请验证交流电压、相位和频率是否与控制装置外壳门参数板上的相应数据相同。
Verify ac line voltage phase and frequency with the controller data plate on the enclosure door prior to connecting ac power.
因此，安装加工中心的位置，需要电源电压有严格控制。
Therefore, the installation of the machining center location, the need for strict control of power supply voltage.
该控制方式的指令信号通过同时检测电源电流和负载电压得到。
The reference signal in this control approach is obtained by detecting both source current and load voltage.
在额定控制电源电压低于35%时，欠电压脱扣器应防止断路器合闸。
At rated control supply voltage less than 35% under-voltage should prevent breaker from closing.
电源电压应控制在不大于或小于额定电压的5%范围内，如果电压过高或过低都会损坏电机。
Supply voltage should be controlled at not more than or less than 5% of rated voltage range, if the voltage too high or too low will damage motor.
合理地投切负载能够控制电源电压的波动范围。
Reasonably cutting off load can be controlled the range of the power voltage.
实验结果表明：采用了本文设计的数字化控制技术的逆变电源，可以获得稳定的正弦电压输出。
It is shown by the experimental results that the inverter power supply with digital control technologies designed by this dissertation can output steady sine voltage.
介绍基于脉宽调制芯片TL 494的高压电源的工作原理，其电压可由单片机控制的数字电位器进行调整。
Principle of high voltage power supply based on PWM chip TL494 is introduced in this paper. The adjustment of the voltage is performed by digital potentiometer controlled by MCU.
介绍了针对大电流、低电压的脉冲电源的智能控制系统。
An intelligent control system of high current low voltage pulse power supply is introduced in this paper.
本文提出一种能够适应电源纹波的电压电压控制SPWM电路并将其应用于实际系统，取得了较好的效果。
In this paper, the voltage voltage controlled SPWM adapted to the ripple of the DC power supply is presented and is applied in the practical inverter with satisfactory results.
为了进行电源系统分析和设计，本文建立了电压模式和峰值电流模式控制的逆变弧焊电源数学模型，并用计算机进行分析。
In order analyze and design the power supply system, the system models which control by two above-mentioned control modes are established and analyzed by computer.
在额定控制电源电压的35%～70%时，欠电压脱扣器应可靠使断路器脱扣；
Under the voltage of 35% ~ 70% of the rated voltage, the under-voltage release should make the breaker trip correctly.
由于直流供电电源纹波的影响，电压控制SPWM逆变电路的输出谐波分量幅值较大。
Because of the ripple of the DC power supply, the output harmonic amplitude of the voltage controlled SPWM inverter is higher.
变速恒频电源数字控制技术以dsp作为控制核心，主要实现对变换器的控制和发电系统电压调节，同时也实现了系统保护功能。
Digital control of VSCF power system, which USES DSP as its control core, realizes the control of inverter and voltage regulator, as well as the system protection.
在分析了其他变频器的局限性后，指出了双PW M变频器是交流励磁的最佳电源方案，详细地讨论了电压型双pw M变频器的工作原理与控制策略。
In this paper, a back-to-back PWM converter is considered as the optimum scheme of ac excitation power supply and its operation principle and control strategy are discussed in detail.
该芯片采用电流模控制方式，因此对电源电压的响应和对负载变化的瞬态响应迅速。
The chip is adopted current-mode control, so that either its response to the supply voltage or its transient response to load changes is fast.
在额定控制电源电压低于35%时，欠电压脱扣器应防止断路器合闸。
In case of the operation voltage less than 35% of the rated voltage, the under-voltage should prevent the breaker from closing.
该电源采用数/模混合控制及重复控制方法，数字部分实现高精度的波形发生器和电压有效值控制；
The power supply adopts D/A mixed control and repetitive control. The digital part realizes the high precise waveform generator and the control based on voltage virtual value.
基于电流和电压的双环控制策略，研制了一台输出功率300w的功率因数校正电源样机。
A 300w experimental prototype of power supply with power-factor-correction function based on dual-loop control strategy is presented in this paper.
讨论了一些影响放电电压大小及频率的电源参数，如供电电压、控制信号占空比、振荡电路的电阻和电容等。
Some factors affecting the frequency and magnitude of power supply, such as supply voltage, duty of control signal, the resistance and capacitance of oscillation circuit are discussed.
对影响放电电压大小及频率的电源参数进行了讨论，如供电电压、控制信号占空比、振荡电路的R和C等。
Some parameters affecting the frequency and magnitude of power supply, such as supply voltage, duty of control sigal. the R and C of oscillation circuit are discussed.
本文利用最常见的用于电源的PWM电压调节芯片TL494，设计成直流电机调速控制电路。
This paper makes use of ordinary power supply chip TL494, which having characteristic of PWM output, DC motor speed-varying control circuit has been designed.
电源电压应控制在不大于或小于额定电压的5%范围内，如果电压过高或过低都会损坏电机。
Supply voltage should be controlled at not greater than or less than the rated voltage range of 5%, if the voltage too high or too low will damage motor.
交—直—交变频器按照交流电机电源电压的控制方法的不同，分为电压型和电流型两种。
Pay - Direct - cycloconverter supply voltage AC motor in accordance with the different control methods are divided into voltage-and current-mode two.
最后，由于采用直流电源供电并且电压控制在36伏以下，因此安全性大大提高。
Lastly, safety can be increased largely because of using DC electrical source and control voltage under 36v.
介绍了SPWM逆变电源输出电压波形重复控制的工作原理及重复控制器的设计方法。
The operation principle of repetitive control of output voltage of SPWM inverter and design method of repetitive controller are introduced.
介绍了一种基于零电压软开关技术和双闭环控制模式的大功率等离子喷涂高频开关电源。
A novel plasma spray power supply based on ZVS soft-switching technology and double close loop control mode is presented in this paper.
介绍了一种基于零电压软开关技术和双闭环控制模式的大功率等离子喷涂高频开关电源。
A novel plasma spray power supply based on ZVS soft-switching technology and double close loop control mode is presented in this paper.
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