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DDS signal generator applied to WPT system

A signal generator and signal technology, applied in general control systems, control/regulation systems, instruments, etc.

Inactive Publication Date: 2014-01-29
TIANJIN POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the research on magnetic coupling resonant power transmission technology is still in its infancy, mainly focusing on the improvement of system performance and application research in special occasions.

Method used

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  • DDS signal generator applied to WPT system
  • DDS signal generator applied to WPT system
  • DDS signal generator applied to WPT system

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Embodiment Construction

[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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Abstract

The invention discloses the design of a DDS signal generator applied to a WPT system. The DDS signal generator applied to the WPT system mainly comprises a DSP control circuit, a DDS signal generator circuit and a seven-stage elliptic filter circuit. The DDS signal generator belongs to the frontier field of the high-frequency electromagnetic theory and the control engineering application of the high-frequency electromagnetic theory, provides a high-performance excitation source for the WPT system and can guarantee that electric energy can be transmitted continuously and stably. The DDS signal generator applied to the WPT system is wide in frequency band, high in intelligentization and high in reliability and is designed to be suitable for electric energy transmission for the first time according to the wireless electric energy transmission characteristic.

Description

technical field [0001] The invention relates to a DDS signal generator applied to a WPT system. It can send out wide-band, high-reliability sine wave signal, which can be used as the excitation source of WPT system and is an essential part to complete energy transmission. Background technique [0002] Since it was discovered in 1840 that the use of electromagnetic induction and wires can transmit electric energy, the transmission of electric energy is mainly carried out by direct contact of wires. The charging of electrical equipment is generally carried out through plugs and sockets, but when high-power charging is performed, there is a risk of high-voltage electric shock in this charging method. And due to the existence of friction and wear, the safety, reliability and service life of the system are low, especially in some flammable and explosive fields such as chemical industry and mining, which can easily cause major accidents. The new contactless power transmission sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 薛明杨庆新李阳张献
Owner TIANJIN POLYTECHNIC UNIV