发明授权
- 专利标题: Resolver arrangement
- 专利标题(中): 解散安排
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申请号: US11347703申请日: 2006-02-03
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公开(公告)号: US07196643B2公开(公告)日: 2007-03-27
- 发明人: Frank Ohnhaeuser , Michael Reinhold , Mikael Badenius
- 申请人: Frank Ohnhaeuser , Michael Reinhold , Mikael Badenius
- 申请人地址: US TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: US TX Dallas
- 代理商 W. James Brady, III; Frederick J. Telecky, Jr.
- 优先权: DE102005005024 20050203
- 主分类号: H03M1/06
- IPC分类号: H03M1/06
摘要:
A resolver arrangement that is inexpensive and yet offers high resolution and high noise rejection includes a carrier signal generator and two processing channels each of which has an analog input connected a different one of the stator coils and a channel output. Each of the processing channels includes a sigma-delta modulator with an output that supplies a bit-stream representative of an analog input signal received from a respective stator coil. Each channel also includes a first digital filter that receives the bit-stream from the sigma-delta modulator and converts the bit-stream to intermediate digital data-words. In addition, each channel has a digital synchronous demodulator that demodulates the intermediate digital data-words in synchronism with the carrier signal providing demodulated data-words. Finally, each channel has a second digital filter that averages the demodulated data-words and supplies digital output data-words on the channel output, the carrier signal being suppressed in the output data-words.
公开/授权文献
- US20060170579A1 Resolver arrangement 公开/授权日:2006-08-03
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