公开(公告)号：US09917525B1

公开(公告)日：2018-03-13

申请号：US15678508

申请日：2017-08-16

Applicant: NXP B.V.

Inventor： Jeroen Kleinpenning

IPC: H02M3/335 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M3/33592 ,  H02M1/08 ,  H02M1/38 ,  H02M3/33523 ,  H02M2001/0025 ,  H02M2001/0048

Abstract: A power supply having a primary side and a secondary side is disclosed. The power supply includes a main transformer having a first side and a second side. The first side is coupled to the primary side and the second side coupled to the secondary side. The power supply further includes a primary switch coupled to the first side and a synchronous rectification switch coupled to the second side. A controller is included for driving the primary switch and the synchronous rectification switch in several operation modes including the operation in continuous conduction mode. The controller is configured to determine and set a time between turning-off of the synchronous rectification switch and turning-on of the primary switch based on sampling of the peak voltage at the drain of the synchronous rectification switch and selecting the time that corresponds with the lowest peak voltage on the drain of the synchronous rectification switch.

公开(公告)号：US20170366091A1

公开(公告)日：2017-12-21

申请号：US15184432

申请日：2016-06-16

Applicant: NXP B.V.

Inventor： Wilhelmus Hinderikus Maria Langeslag ,  Jeroen Kleinpenning

IPC: H02M3/335 ,  H02M1/32 ,  H02M1/08

CPC classification number: H02M3/33523 ,  H02M1/08 ,  H02M1/32 ,  H02M2001/0032 ,  Y02B70/16

Abstract: An apparatus for delivering power to a load, which comprises an isolated power converter that converts input power on a primary side to output power and a supply voltage at a node on a secondary side. On the secondary side, a load switch is located on a current path to the load. A secondary-side control circuitry controls the load switch to operate in an ON mode in which current is provided to the load, and in response to a fault condition corresponding to an effective sudden disconnection of the supply voltage, switches the load switch into an OFF mode in which the current path to the load is blocked.

公开(公告)号：US10090770B2

公开(公告)日：2018-10-02

申请号：US15184432

申请日：2016-06-16

Applicant: NXP B.V.

Inventor： Wilhelmus Hinderikus Maria Langeslag ,  Jeroen Kleinpenning

IPC: H02M3/335 ,  H02M1/08 ,  H02M1/32 ,  H02M1/00

Abstract: An apparatus for delivering power to a load, which comprises an isolated power converter that converts input power on a primary side to output power and a supply voltage at a node on a secondary side. On the secondary side, a load switch is located on a current path to the load. A secondary-side control circuitry controls the load switch to operate in an ON mode in which current is provided to the load, and in response to a fault condition corresponding to an effective sudden disconnection of the supply voltage, switches the load switch into an OFF mode in which the current path to the load is blocked.

公开(公告)号：US20160218627A1

公开(公告)日：2016-07-28

申请号：US14984734

申请日：2015-12-30

Applicant: NXP B.V.

Inventor： Jan Dikken ,  Jeroen Kleinpenning

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M3/33592 ,  H03K17/04206 ,  H03K17/166 ,  H03K17/302 ,  H03K2017/307 ,  Y02B70/1475

Abstract: There is disclosed a controller configured to control a synchronous rectification MOSFET having a drain, a source and a gate; the controller comprising a regulator configured to regulate a voltage between the drain and the source to a first regulation voltage, and a gate charger operable during a turn-on phase of the synchronous rectification MOSFET operation and configured to regulate a voltage between the drain and the source to a second regulation voltage having a larger absolute value than the absolute value of the first regulation voltage, wherein the gate charger is further configured to, when in operation, disable the regulator. Also disclosed is a switched mode power converter comprising such a synchronous rectification MOSFET, and a method for controlling such a synchronous rectification MOSFET.

Abstract translation: 公开了一种控制器，其被配置为控制具有漏极，源极和栅极的同步整流MOSFET; 所述控制器包括调节器，其被配置为将所述漏极和源极之间的电压调节到第一调节电压;以及栅极充电器，其在所述同步整流MOSFET操作的导通阶段期间可操作并且被配置为调节所述漏极和所述源极之间的电压 源极具有比第一调节电压的绝对值更大的绝对值的第二调节电压，其中栅极充电器还被配置为在使用时禁用调节器。 还公开了一种包括这种同步整流MOSFET的开关模式功率转换器，以及用于控制这种同步整流MOSFET的方法。

公开(公告)号：US20160079790A1

公开(公告)日：2016-03-17

申请号：US14827758

申请日：2015-08-17

Applicant: NXP B.V.

Inventor： Jeroen Kleinpenning ,  Jan Dikken

IPC: H02J7/00

CPC classification number: H02J7/0081 ,  H02J7/0073 ,  H02M3/1588 ,  H02M2001/0006 ,  H02M2001/0035 ,  Y02B70/1466 ,  Y02B70/16

Abstract: A controller for a switched mode power supply, wherein the controller is configured to be connected to a synchronous rectifier. The controller comprising: a voltage comparator configured to determine satisfaction of a voltage criterion, wherein the voltage criterion is satisfied when a conduction channel voltage between a first-conduction-channel terminal and a second-conduction-channel terminal meets a first pre-determined voltage threshold; and a timer configured to determine satisfaction of a time criterion, wherein the time criterion is satisfied when a voltage associated with the synchronous rectifier meets a second predetermined voltage threshold for greater than a pre-determined time; the controller configured to provide for a normal mode of operation based on satisfaction of the voltage criterion and a power-saving mode of operation based on satisfaction of the time criterion, wherein the controller is configured to draw a power-saving-mode current in the power-saving mode of operation, and draw a normal-mode current in the normal mode of operation, wherein a magnitude of the normal-mode current is greater than a magnitude of the power-saving-mode current.

Abstract translation: 一种用于开关模式电源的控制器，其中所述控制器被配置为连接到同步整流器。 该控制器包括：电压比较器，被配置为确定电压准则的满足度，其中当第一导通通道端子和第二导通通道端子之间的导通通道电压满足第一预定电压时，满足电压准则 阈; 以及定时器，其被配置为确定时间准则的满足度，其中当与所述同步整流器相关联的电压满足第二预定电压阈值大于预定时间时，所述时间准则被满足; 所述控制器被配置为基于所述电压标准的满足以及基于所述时间准则的满足的省电模式来提供正常操作模式，其中所述控制器被配置为在所述电力标准中绘制省电模式电流 省电模式，并且在正常工作模式下绘制正常模式电流，其中正常模式电流的大小大于功率节省模式电流的幅度。