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.
系统的分析了频率跟踪移相PWM控制全桥供电的串联谐振负载式DBD型臭氧发生器电源系统的工作过程。
The working processes of the frequency-tracking phase-shift PWM controlled full bridge power supply load series resonant type DBD ozone generation power system are analyzed.
以单片机at89c 51控制的高频超声电源，其功率、频率及相位可进行有效的调节。
High frequency ultrasonic power supply controlled by AT89C51, can adjust its power, frequency and phase in high performance.
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.
自动电源控制，频率自动调整负载平衡，使其更为灵活和稳定，建立大规模的网络。
Auto power control, frequency auto-adjustment and load balance make it more flexible and stable to establish large scale network.
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.
铝合金超声铸造；超声波电源；频率控制；功率控制。
Aluminum ultrasound casting; ultrasound power; frequency tracking; power control.
该系列电源适配器，采用固定频率控制电路，具备限流、限压、过温、短路全功能保护。
With fixed frequency control circuit, it provides with over voltage, over current, overheat and short circuit protection.
在单位功率因数整流器中，利用瞬时值比较法来控制电源电流，不但控制简单，还可有效限制器件的最高开关频率。
The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.
频率跟踪和恒定振幅控制是超声加工电源两个重要的特性。
Frequency automatic tracking and amplitude stabilizing are two important characteristics of ultrasonic machining power.
大多数电气设备要求有固定频率的电源，电力控制要求减少风力发电并网时的不利影响，这些因素都需要使用主动控制的风电机组。
Most electrical devices requiring a fixed frequency, electric power control requirements to reduce the adverse effects of nets, these factors need to use active control to control wind turbine.
本文利用频率跟踪和移相控制技术，使电源输出频率跟踪负载谐振频率变化，以保证最佳加热效率。
It could ensure the best efficiency by making the output frequency to trace the resonance frequency with the frequency tracing technique and phase-shifted control.
达到高频率、可调节、控制性高的稳定电源系统。
Achieve high frequency, adjustable, controlled high-power system stability.
针对超声波电源需要解决的频率控制、功率控制和负载匹配三大重要技术问题分别进行了深入分析。
Three major technical issues related to ultrasonic power's performance are considered in this paper: including the frequency control, power control and load matching.
电源系统硬件主要由电压和频率控制电路、相关电压处理电路、频率处理电路以及综合输出电路组成；
The hardware of the power supply is mainly composed of voltage and frequency circuits, related voltage processing circuit, frequency processing circuit, and integrated output circuit.
电源系统硬件主要由电压和频率控制电路、相关电压处理电路、频率处理电路以及综合输出电路组成；
The hardware of the power supply is mainly composed of voltage and frequency circuits, related voltage processing circuit, frequency processing circuit, and integrated output circuit.
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