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Low-power start-up and direction control circuitry for an irrigation system
专利权人:
Dan Pickerill;Eric Risch
发明人:
Dan Pickerill,Eric Risch
申请号:
US13157014
公开号:
US08829736B2
申请日:
2011.06.09
申请国别(地区):
US
年份:
2014
代理人:
摘要:
An electric circuit for remotely starting and controlling the direction of a center pivot irrigation system comprises a first transformer, a second transformer, a first relay, a second relay, a third relay, and a fourth relay. The first transformer is coupled to a voltage source with a first voltage and may step the first voltage down to a second voltage. The second transformer is coupled to the first transformer, receiving a third voltage and stepping the third voltage up to a fourth voltage. The first relay may include contacts that are open when the irrigation system is started remotely. The second relay may include contacts that are closed when the irrigation system is started remotely. The third relay may include contacts that are closed momentarily to drive the system in a first direction. The fourth relay may include contacts that are closed momentarily to drive the system in a second direction.
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中国工程科技知识中心
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