发明名称 |
CHARGING CIRCUIT FOR BATTERY IN THERMOSTAT WITH BATTERY OPERATED TIMER |
摘要 |
<p>A timer controlled space thermostat includes a battery operated timer and charging circuit means for continuously charging the battery. The charging circuit means includes a miniature transformer having two primary windings and one secondary winding wound on a single core. When a thermostat switch therein is closed to effect energizing of a space conditioning apparatus, one of the primary windings induces a stepped-up voltage and stepped-down current in the secondary winding to effect charging the battery. When the thermostat switch is open, the other primary winding induces a stepped-down voltage and stepped-up current in the secondary winding to effect charging the battery.</p> |
申请公布号 |
CA1109930(A) |
申请公布日期 |
1981.09.29 |
申请号 |
CA19800351080 |
申请日期 |
1980.05.01 |
申请人 |
EMERSON ELECTRIC CO. |
发明人 |
DONNELLY, DONALD E.;KRUMP, ROBERT C. |
分类号 |
G05D23/275;(IPC1-7):02J7/00 |
主分类号 |
G05D23/275 |
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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