| 摘要 |
An electric actuator apparatus particularly suitable for use as part of an automotive air conditioning system. The apparatus uses a direct current motor to drive a final output element in accordance with an input voltage signal. The apparatus is inherently protected against stalled conditions and no limit switches are required. The apparatus is self-adapting to different physical environments which define the range of travel of the final output element. The apparatus may be operated as a two-position actuator or, with the addition of a feedback signal corresponding to the postion of the final output element, may be operated as an infinite position or multi-position actuator.
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