发明名称 |
Reference signal generation circuit, angle converter, and angle detection apparatus |
摘要 |
<p>A reference signal generation circuit generates a reference signal used in synchronous detection for removing an excitation signal component in an angle calculation section that converts a detection angle θ obtained from two-phase resolver detection signals output from a resolver, to a digital output angle φ. The reference signal generation circuit includes a first multiplier, a second multiplier, and an adder. The first multiplier multiplies one of the resolver detection signals sinθsin(ωt+Δω) by the sine value sinφ of the digital output angle φ obtained from the angle calculation section. The second multiplier multiplies the other resolver detection signal cosθsin(ωt+Δω) by the cosine value cosφ of the digital output angle φ obtained from the angle calculation section. The adder adds the output of the first multiplier and the output of the second multiplier to output the sum signal sin(ωt+Δω) as the reference signal.
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申请公布号 |
EP2077621(A3) |
申请公布日期 |
2010.03.10 |
申请号 |
EP20080021616 |
申请日期 |
2008.12.12 |
申请人 |
JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED |
发明人 |
NISHIMURA, HISASHI;NAKAZATO, KENICHI |
分类号 |
H03M1/48 |
主分类号 |
H03M1/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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