The system adopts direct digital synthetic (DDS) technology for building the sine wave generator to realize continuousregulation of amplitude, frequency and phase modulation.
系统采用直接数字合成（DDS）技术构建正弦波发生器，实现幅值、频率、相位等连续调节；
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The result indicates that the continuousregulation mode is more close to practice in the calculation of useful storage, makes that the planning of useful storage regulation is more...
By use of MCS-51 chip microprocessor, it can fulfill the tasks, such system control and management, programmable control communication and continuousregulation of voltage with high accuracy.