公开(公告)号：US09754746B2

公开(公告)日：2017-09-05

申请号：US14693067

申请日：2015-04-22

Applicant: Emerson Electric Co.

Inventor： John F. Broker ,  Xiaobing Zhu ,  Cuikun Chu

IPC: H01H47/00 ,  H01H47/32 ,  H01H47/22

CPC classification number: H01H47/32 ,  H01H47/226

Abstract: A driving circuit includes a relay driver for selectively connecting a relay coil with (a) a first current path between the relay driver and a relay voltage input or (b) a second current path between the relay driver and a ground connection. Another relay driver selectively connects the coil with (a) a third current path between the other relay driver and the relay voltage input or (b) a fourth current path between the other relay driver and the ground connection. The relay drivers may connect the coil between the second and third current paths for latching the relay, and between the first and fourth current paths for unlatching the relay. The driving circuit applies signals of opposite polarity and different magnitudes through the coil to latch and unlatch the relay. The signal for unlatching can be of lower voltage than the signal for latching the relay.

公开(公告)号：US20160314919A1

公开(公告)日：2016-10-27

申请号：US14693067

申请日：2015-04-22

Applicant: Emerson Electric Co.

Inventor： John F. Broker ,  Xiaobing Zhu ,  Cuikun Chu

IPC: H01H47/32

CPC classification number: H01H47/32 ,  H01H47/226

Abstract: A driving circuit includes a relay driver for selectively connecting a relay coil with (a) a first current path between the relay driver and a relay voltage input or (b) a second current path between the relay driver and a ground connection. Another relay driver selectively connects the coil with (a) a third current path between the other relay driver and the relay voltage input or (b) a fourth current path between the other relay driver and the ground connection. The relay drivers may connect the coil between the second and third current paths for latching the relay, and between the first and fourth current paths for unlatching the relay. The driving circuit applies signals of opposite polarity and different magnitudes through the coil to latch and unlatch the relay. The signal for unlatching can be of lower voltage than the signal for latching the relay.

Abstract translation: 驱动电路包括用于选择性地将继电器线圈与（a）继电器驱动器和继电器电压输入之间的第一电流路径连接的继电器驱动器，或（b）继电器驱动器和接地连接之间的第二电流通路。 另一个继电器驱动器选择性地将线圈与（a）另一个继电器驱动器和继电器电压输入之间的第三电流路径连接，或（b）另一个继电器驱动器和接地连接之间的第四电流通路。 继电器驱动器可以在第二和第三电流路径之间连接线圈，用于锁定继电器，以及在第一和第四电流路径之间用于解锁继电器。 驱动电路通过线圈施加相反极性和不同幅度的信号来锁存和解锁继电器。 用于解锁的信号可以具有比用于锁存继电器的信号更低的电压。