-
公开(公告)号：US20150381068A1
公开(公告)日：2015-12-31
申请号：US14844252
申请日：2015-09-03
CPC分类号： H02M7/06 , H02M1/081 , H02M1/088 , H02M1/32 , H02M5/2573 , H02M5/293 , H02M2001/0006 , H02M2001/0012 , H05B33/0815 , H05B33/0818 , H05B33/0845 , H05B39/04 , H05B39/044 , H05B39/048
摘要： A load control device for controlling the power delivered from an AC power source to an electrical load includes a thyristor, a gate coupling circuit for conducting a gate current through a gate of the thyristor, and a control circuit for controlling the gate coupling circuit to conduct the gate current through a first current path to render the thyristor conductive at a firing time during a half cycle. The gate coupling circuit is able to conduct the gate current through the first current path again after the firing time, but the gate current is not able to be conducted through the gate from a transition time before the end of the half-cycle until approximately the end of the half-cycle. The load current is able to be conducted through a second current path to the electrical load after the transition time until approximately the end of the half-cycle.
摘要翻译： 用于控制从AC电源向电负载传递的电力的负载控制装置包括晶闸管，用于导通通过晶闸管的栅极的栅极电流的栅极耦合电路，以及用于控制栅极耦合电路导通的控制电路 通过第一电流路径的栅极电流，以使半导体晶体管在半个周期期间的点火时间导通。 栅极耦合电路能够在点火时间之后再次通过第一电流通路的栅极电流，但是栅极电流不能从半周期结束前的转变时间直到栅极电流直到大约 半周期结束。 负载电流能够在转换时间直到大约半周期结束之前通过到电负载的第二电流通路传导。
-
公开(公告)号：US20160233785A1
公开(公告)日：2016-08-11
申请号：US15131444
申请日：2016-04-18
CPC分类号： H02M7/06 , H02M1/081 , H02M1/088 , H02M1/32 , H02M5/2573 , H02M5/293 , H02M2001/0006 , H02M2001/0012 , H05B33/0815 , H05B33/0818 , H05B33/0845 , H05B39/04 , H05B39/044 , H05B39/048
摘要： A load control device for controlling the power delivered from an AC power source to an electrical load includes a thyristor, a gate coupling circuit for conducting a gate current through a gate of the thyristor, and a control circuit for controlling the gate coupling circuit to conduct the gate current through a first current path to render the thyristor conductive at a firing time during a half cycle. The gate coupling circuit is able to conduct the gate current through the first current path again after the firing time, but the gate current is not able to be conducted through the gate from a transition time before the end of the half-cycle until approximately the end of the half-cycle. The load current is able to be conducted through a second current path to the electrical load after the transition time until approximately the end of the half-cycle.
-
公开(公告)号：US09941811B2
公开(公告)日：2018-04-10
申请号：US15131444
申请日：2016-04-18
IPC分类号： H02M5/257 , H02M7/06 , H05B33/08 , H05B39/04 , H02M1/08 , H02M1/32 , H02M5/293 , H02M1/088 , H05B41/392 , H02M1/00
CPC分类号： H02M7/06 , H02M1/081 , H02M1/088 , H02M1/32 , H02M5/2573 , H02M5/293 , H02M2001/0006 , H02M2001/0012 , H05B33/0815 , H05B33/0818 , H05B33/0845 , H05B39/04 , H05B39/044 , H05B39/048
摘要： A load control device for controlling power delivered from an AC power source to an electrical load includes a thyristor, a first current path for conducting current through a gate terminal of the thyristor, and a control circuit for controlling the first current path to conduct a pulse of current through the gate terminal to render the thyristor conductive at a firing time during a present half cycle. The first current path is able to conduct at least one other pulse of current through the gate terminal between the firing time, and a second time that occurs before an end of the present half-cycle, but is prevented from conducting pulses of current between the second time and the end of the present half-cycle. The load control device includes a second current path for conducting current through the electrical load if the thyristor becomes and remains non-conductive during the present half-cycle.
-
-
搜索结果
3 条记录 (耗时 0.017 秒)
