发明名称 |
Electric motor drive employing hybrid, hysteretic/pulse-width-modulated dynamic braking |
摘要 |
A dynamic braking circuit for an electronic motor drive shunts the DC link of the drive with a resistor using two control strategies. The first control strategy used for lower levels of braking employs a pulse width modulated signal and the second control strategy used for higher levels of braking uses a hysteretic signal significantly reducing switching losses in the semiconductor devices controlling the dynamic braking resistor allowing higher braking capacity.
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申请公布号 |
US7906922(B2) |
申请公布日期 |
2011.03.15 |
申请号 |
US20080061454 |
申请日期 |
2008.04.02 |
申请人 |
ROCKWELL AUTOMATION TECHNOLOGIES, INC. |
发明人 |
THUNES JERRY DEE;WEI LIXIANG |
分类号 |
H02P3/06 |
主分类号 |
H02P3/06 |
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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