SINGLE TRIAC REVERSIBLE MOTOR CONTROL

申请公布号：US3673479(A)

申请号：USD3673479

申请日期：1971.04.30

申请公布日期：1972.06.27

申请人：

BARBER-COLMAN CO.

发明人：ALFRED A. HORTON

分类号：G05D3/14;H02P23/00;(IPC1-7):H02P7/62

主分类号：G05D3/14

摘要：A single phase AC motor, biased to rotate in one direction, is made to stop when a controlled circuit tending to cause rotation in the opposite direction is energized by a half wave rectified alternating current and is made to rotate in the opposite direction when the controlled circuit is energized by alternating current. A triac rectifies the control current when fired in only one quadrant and passes alternating current when fired in two quadrants, a modulated DC gating current determining whether the triac is fired in one quadrant, in two quadrants or in none. Speed control may be exercised by controlling the phase angle of the firing.

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