公开(公告)号：US20100072907A1

公开(公告)日：2010-03-25

申请号：US12625118

申请日：2009-11-24

申请人： Bassam Jalbout ,  Brian Wong

发明人： Bassam Jalbout ,  Brian Wong

IPC分类号： H05B41/36 ,  H05B39/04

CPC分类号： H05B33/0815 ,  H05B33/0824

摘要： A switched preconditioner circuit is provided at the power input end of a light source to effectively drop the voltage of the light source to zero volts whenever the light source is required to be in an OFF state thereby eliminating the problem of unwanted current through the light source. The preconditioner circuit may include a terminal connected to a first power potential, a terminal connected to a power node at the power input end of the light source, and an input to receive a preconditioner control signal to place the preconditioner circuit in one of an ON state and an OFF state. The preconditioner circuit supplies the voltage to the power node in its ON state and effectively eliminates the voltage to the power node in its OFF state. The preconditioner circuit also may include a bleed path connected between the power node and a second or ground potential to shunt all power supplied to the power node when the preconditioner circuit input receives a signal to place the preconditioner circuit in the OFF state.

摘要翻译： 在光源的电源输入端设置开关预处理电路，以便在要求光源处于关断状态时有效地将光源的电压降至零伏，从而消除了通过光源的不期望的电流的问题 。 预处理器电路可以包括连接到第一电源电位的端子，连接到光源的电力输入端处的功率节点的端子和用于接收预处理器控制信号的输入端，以将预处理器电路放置在ON 状态和OFF状态。 预处理器电路将电压提供给处于其导通状态的电源节点，并且有效地消除了电源节点处于其关闭状态的电压。 预处理器电路还可以包括连接在功率节点和第二或接地电位之间的放电路径，以在预处理器电路输入接收到将预处理器电路置于OFF状态的信号时分流供应给功率节点的所有功率。

公开(公告)号：US07638950B1

公开(公告)日：2009-12-29

申请号：US11882322

申请日：2007-07-31

申请人： Bassam Jalbout ,  Brian Wong

发明人： Bassam Jalbout ,  Brian Wong

IPC分类号： H05B41/36

CPC分类号： H05B33/0815 ,  H05B33/0824

摘要： A switched preconditioner circuit is provided at the power input end of a light source to effectively drop the voltage of the light source to zero volts whenever the light source is required to be in an OFF state thereby eliminating the problem of unwanted current through the light source. The preconditioner circuit may include a terminal connected to a first power potential, a terminal connected to a power node at the power input end of the light source, and an input to receive a preconditioner control signal to place the preconditioner circuit in one of an ON state and an OFF state. The preconditioner circuit supplies the voltage to the power node in its ON state and effectively eliminates the voltage to the power node in its OFF state. The preconditioner circuit also may include a bleed path connected between the power node and a second or ground potential to shunt all power supplied to the power node when the preconditioner circuit input receives a signal to place the preconditioner circuit in the OFF state.

摘要翻译： 在光源的电源输入端设置开关预处理电路，以便在要求光源处于关断状态时有效地将光源的电压降至零伏，从而消除了通过光源的不期望的电流的问题 。 预处理器电路可以包括连接到第一电源电位的端子，连接到光源的电力输入端处的功率节点的端子和用于接收预处理器控制信号的输入端，以将预处理器电路放置在ON 状态和OFF状态。 预处理器电路将电压提供给处于其导通状态的电源节点，并且有效地消除了电源节点处于其关闭状态的电压。 预处理器电路还可以包括连接在功率节点和第二或接地电位之间的放电路径，以在预处理器电路输入接收到将预处理器电路置于OFF状态的信号时分流供应给功率节点的所有功率。