公开(公告)号：US20140001979A1

公开(公告)日：2014-01-02

申请号：US13712572

申请日：2012-12-12

Applicant: NXP B.V.

Inventor： Frederic Mercier ,  David Derrien ,  Thibault Perquis

IPC: H05B37/02 ,  H02M3/335

CPC classification number: H05B37/02 ,  H02M3/33507 ,  H05B33/0809

Abstract: A bleeder arrangement for a phase-cut circuit for a high-impedance load and having a leading-edge phase-cut device is disclosed, the bleeder arrangement comprising: a controllable current sink adapted to sink a latching current through the leading-edge phase-cut device, and a controller for controlling the controllable current sink, wherein the controller is configured to disable the current sink after the leading-edge phase phase-cut device has latched in at least two stages. A controller for use in such an arrangement is also disclosed, as is a method of controller such a bleeder arrangement.

Abstract translation: 公开了一种用于高阻抗负载并具有前缘相位切割装置的相位切断电路的泄放装置，该泄放装置包括：可控电流吸收器，其适于通过前缘相位切断装置吸收锁存电流， 切割装置和用于控制可控电流吸收器的控制器，其中所述控制器被配置为在所述前沿相位切断装置至少锁定了两个阶段之后禁用所述电流吸收器。 还公开了一种用于这种布置的控制器，以及诸如泄放装置的控制器的方法。

公开(公告)号：US20130113391A1

公开(公告)日：2013-05-09

申请号：US13659519

申请日：2012-10-24

Applicant: NXP B.V.

Inventor： Frederic Mercier ,  Philippe Maugars

IPC: H05B37/02

CPC classification number: H05B33/0809

Abstract: A method of controlling a ballast in a circuit for a lighting application and connected to a mains power supply is disclosed. The method comprises determining whether a dimmer is present in the circuit; in response to detecting that a dimmer is present, determining a zero-crossing of the power supply and setting a bleeder current through the ballast in dependence on the phase of the power supply within a mains half-cycle; and in response to determining that a dimmer is not present, disabling the bleeder current.A ballast which is controlled by such a method is also disclosed. Additionally, a controller, which may include a digital signal processor, for a ballast and operable according to the above method is disclosed.

Abstract translation: 公开了一种控制用于照明应用并连接到主电源的电路中的镇流器的方法。 该方法包括确定电路中是否存在调光器; 响应于检测到存在调光器，确定电源的零交叉并且根据电源半周期内的电源的相位来设定通过镇流器的泄放电流; 并且响应于确定不存在调光器，禁用泄放电流。 还公开了通过这种方法控制的镇流器。 此外，公开了一种用于镇流器并可根据上述方法操作的控制器，其可以包括数字信号处理器。

公开(公告)号：US08836226B2

公开(公告)日：2014-09-16

申请号：US13712572

申请日：2012-12-12

Applicant: NXP B.V.

Inventor： Frederic Mercier ,  David Derrien ,  Thibault Perquis

IPC: H05B37/02 ,  H05B33/08 ,  H02M3/335

CPC classification number: H05B37/02 ,  H02M3/33507 ,  H05B33/0809

Abstract: A bleeder arrangement for a phase-cut circuit for a high-impedance load and having a leading-edge phase-cut device is disclosed, the bleeder arrangement comprising: a controllable current sink adapted to sink a latching current through the leading-edge phase-cut device, and a controller for controlling the controllable current sink, wherein the controller is configured to disable the current sink after the leading-edge phase phase-cut device has latched in at least two stages. A controller for use in such an arrangement is also disclosed, as is a method of controller such a bleeder arrangement.

Abstract translation: 公开了一种用于高阻抗负载并具有前缘相位切割装置的相位切断电路的泄放装置，该泄放装置包括：可控电流吸收器，其适于通过前缘相位切断装置吸收锁存电流， 切割装置和用于控制可控电流吸收器的控制器，其中所述控制器被配置为在所述前沿相位切断装置至少锁定了两个阶段之后禁用所述电流吸收器。 还公开了一种用于这种布置的控制器，以及诸如泄放装置的控制器的方法。