This paper introduces the system of single phase large power source varied frequency for heating, contains rectifier, filter, inverter and control circuit etc.
介绍了大功率单相变频加热电源的系统组成，包括整流、滤波、逆变和控制电路等部分。
A method for measuring the dynamic frequency characteristics of a system with 8031 single chip microcomputer was presented, the circuit diagram was given and the software designing was introduced.
提出了用8031单片机及相应接口电路来完成系统动态频率特性测试的方法，给出了硬件的电路原理图，介绍了软件设计。
A generalized equivalent circuit model was developed for both single-tuned and double-tuned radio-frequency(RF) coils for Magnetic Resonance Imaging (MRI) systems.
为了解决磁共振成像系统中双调谐射频线圈的设计问题，提出了一个通用等效电路模型。
The equivalent circuit of parallel inverters is acquired from the single inverter equivalent circuit and the circulating current of parallel system is given in condition of different frequency.
根据单台逆变器的等效电路得到了并联系统的等效电路，给出了并联系统的在不同等效电路下环流的大小。
Therefore, the clock frequency directly affect the speed of MCU, clocking circuit and the quality of directly influence the stability of single-chip microcomputer system.
因此，时钟频率直接影响单片机的速度，时钟电路的质量也直接影响单片机系统的稳定性。
In this way, the single oscillator circuit part (310) and the single induction heating coil (200) are used to effectively induction heat the object (201) by means of the dual frequency resonance.
通过一个振荡电路部分(310)采用一个感应加热线圈(200)以两个频率进行谐振对被加热物体(201)进行高效率的感应加热。
The output signal of the sensor is the sinusoidal signal with intermediate frequency. To sample and process this signal, a data collection circuit that centers on P89C51RD2 single chip is designed.
传感器输出的检测信号是中频的正弦电压信号，为采集和处理该信号，设计了以P89C51RD2单片机为核心的数据采集器电路。
Through debugging the hardware circuit of the Phase Locked Loop and writing the Single-Chip Processor program, a good performance frequency source is realized.
通过对锁相环硬件电路的调试和编写相关单片机控制程序，实现了一个性能较好的频率源。
Through debugging the hardware circuit of the Phase Locked Loop and writing the Single-Chip Processor program, a good performance frequency source is realized.
通过对锁相环硬件电路的调试和编写相关单片机控制程序，实现了一个性能较好的频率源。
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