发明名称 |
DEAD-TIME GENERATING CIRCUIT AND MOTOR CONTROL APPARATUS |
摘要 |
A dead-time generating circuit includes a constant current circuit; a current generating circuit generating a capacitor-charge current; and a control circuit receiving a dead time control signal and a comparator signal. The control circuit generates a dead time generating signal based on the dead time control signal and the comparator signal, and a charge/discharge signal based on the dead time generating signal. Charging or discharging of a capacitor is controlled by the capacitor-charge current in accordance with the charge/discharge signal. A voltage of the capacitor is compared with a threshold voltage in order to generate a comparator signal when the voltage of the capacitor exceeds the threshold voltage. The control circuit generates the charge/discharge signal for a duration starting from a time when the delay time has elapsed from the rise or fall timing of the dead time control signal until the control circuit receives the comparator signal. |
申请公布号 |
US2012126735(A1) |
申请公布日期 |
2012.05.24 |
申请号 |
US201013384706 |
申请日期 |
2010.09.03 |
申请人 |
UEDA YASUO;TOKUDA MASASHI;TSUKAGOSHI TOSHIHIRO |
发明人 |
UEDA YASUO;TOKUDA MASASHI;TSUKAGOSHI TOSHIHIRO |
分类号 |
H02P6/08;H03L7/00 |
主分类号 |
H02P6/08 |
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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