发明名称 Battery powered motor drive with temperature-responsive battery heater
摘要 An improved battery powered quartz timing control circuit that drives a stepper motor, featuring a battery heated by a temperature-responsive battery heater which is activated when the ambient temperature in the vicinity of the battery drops below a predetermined temperature.
申请公布号 US4667140(A) 申请公布日期 1987.05.19
申请号 US19850703275 申请日期 1985.02.20
申请人 PARAGON ELECTRIC CO., INC. 发明人 SWEETMAN, JAMES D.
分类号 G04C3/14;G04C10/00;G05D23/24;H01M10/42;H02J7/00 主分类号 G04C3/14
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