发明名称 |
CONTROL CIRCUIT FOR A DUAL DIRECTIONAL DIRECT CURRENT MOTOR EMPLOYING A SINGLE ALTERNATING CURRENT POWER SOURCE |
摘要 |
A control circuit operates a dual directional DC motor from an AC power source. A controller has first and second position indication inputs adapted to receive respective first and second position indications. The controller als o has first and second direction outputs, which respectively energize one of two first relay coils having contacts outputting respective AC voltages responsive to the directio n outputs. A full wave bridge rectifier receives the AC voltage and responsively output s a DC voltage, which energizes a second relay coil. A contact thereof directs that voltage to two sets of first relay contacts, which are also responsive to the direction outputs, and which respectively provide a positive or negative DC voltage to the motor. Another second relay coil contact provides a braking action to the motor responsive to removal of the DC voltage from the rectifier output following removal of the AC voltage to the rectifier. |
申请公布号 |
CA2489059(A1) |
申请公布日期 |
2005.06.01 |
申请号 |
CA20042489059 |
申请日期 |
2004.12.01 |
申请人 |
EATON CORPORATION |
发明人 |
LATHROP, TODD M.;BERAD, DERRICK G.;HARTZEL, RONALD D.;HANNA, JAMES R. |
分类号 |
H01H3/26;H02P7/00 |
主分类号 |
H01H3/26 |
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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