DDS signal generator applied to WPT system
A signal generator and signal technology, applied in general control systems, control/regulation systems, instruments, etc.
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[0015] The invention provides a DDS signal generator applied to a WPT system with wide frequency band, intelligence and high reliability. The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings.
[0016] Such as figure 1 As shown, a DDS signal generator applied to a WPT system of the present invention includes a DSP control circuit 1 to send a frequency control word and a control signal, and a DDS signal generator 2 to send a corresponding sine wave signal according to the control signal, and a 7th-order ellipse The filter circuit 3 filters out harmonic components and DC components, and outputs a smooth sine wave signal.
[0017] Such as figure 2 As shown, the DDS signal generator is composed of the main chip AD9851 and peripheral circuits, the interface J2 is connected with the DSP control circuit to realize the parallel transmission of data; J3 is a 30MHz external crystal oscillator that provides clock sign...
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