In order to solve the technical problems in the prior art, the invention provides a resolver excitation driving device, a motor rotor position analysis device and an automobile steering system, and the driving cost of a resolver excitation coil is reduced. The resolver excitation driving device is used for being connected with the resolver excitation coil and comprises a first processor, a low-pass filter and a resonator. The output end of the first processor is coupled with the input end of the low-pass filter, and the output end of the low-pass filter is coupled with the input end of the resonator; the output end of the resonator is used for being coupled with the input end of the resolver exciting coil; the first processor is used for outputting an SPWM signal; the low-pass filter is used for filtering the SPWM signal output by the first processor into a sine wave signal; and the resonator is used for generating a signal for exciting the resolver excitation coil according to the sine wave signal formed after filtering of the low-pass filter. According to the device, the resolver excitation coil can be driven without a complex circuit, and the driving cost of the resolver excitation coil is effectively reduced.
本公开为了解决现有技术中的技术问题,提供了一种分解器激励驱动装置、电机转子位置分析装置及汽车转向系统,降低分解器激励线圈驱动成本。分解器激励驱动装置,用于与分解器激励线圈相连,包括:第一处理器、低通滤波器和谐振器;第一处理器的输出端与低通滤波器的输入端耦合,低通滤波器的输出端与谐振器的输入端耦合;谐振器的输出端用于与分解器激励线圈的输入端耦合;第一处理器,用于输出SPWM信号;低通滤波器,用于将第一处理器输出的SPWM信号过滤成正弦波信号;谐振器,用于根据低通滤波器过滤后形成的正弦波信号产生用于激励分解器激励线圈的信号。本公开的装置,无需复杂电路即可驱动分解器激励线圈,有效降低分解器激励线圈的驱动成本。
Resolver excitation driving device, motor rotor position analysis device and automobile steering system
分解器激励驱动装置、电机转子位置分析装置及汽车转向系统
2021-03-05
Patent
Electronic Resource
Chinese
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