公开(公告)号：US20160079868A1

公开(公告)日：2016-03-17

申请号：US14567790

申请日：2014-12-11

Applicant: ACBEL POLYTECH INC.

Inventor： Chia-An Yeh

IPC: H02M3/335 ,  H02M1/14 ,  H02M1/42

CPC classification number: H02M3/33538 ,  H02M1/14 ,  H02M1/4225 ,  H02M3/157 ,  H02M2001/007 ,  Y02B70/126 ,  Y02P80/112

Abstract: A power supply has a power factor correction (PFC) circuit and a DC to DC conversion circuit. A DC to DC controller of the DC to DC conversion circuit acquires zero-crossing information and load information from the PFC circuit through a communication protocol, and performs a low-frequency compensation on a control command using a table-mapping means, thereby resolving the issues of higher controller complexity, changes of entire response characteristics and cost increase in conventional compensation technique.

Abstract translation: 电源具有功率因数校正（PFC）电路和DC-DC转换电路。 DC-DC转换电路的DC〜DC控制器通过通信协议从PFC电路获取过零信息和负载信息，并使用表格映射单元对控制命令进行低频补偿，由此解析 更高的控制器复杂度，传统补偿技术的整体响应特性的变化和成本增加的问题。

公开(公告)号：US08964410B2

公开(公告)日：2015-02-24

申请号：US13706536

申请日：2012-12-06

Applicant: Acbel Polytech Inc.

Inventor： Shun-Te Chang ,  Chien-Hua Wu ,  Chia-An Yeh ,  Hsiang-Yu Hung

IPC: H05K7/00 ,  H05K1/18 ,  H01F27/28 ,  H05K1/14 ,  H05K3/36 ,  H01F27/40

CPC classification number: H05K1/18 ,  H01F27/2866 ,  H01F2027/2814 ,  H01F2027/408 ,  H05K1/141 ,  H05K1/181 ,  H05K3/366 ,  H05K2201/1003 ,  H05K2201/10174 ,  Y02P70/611

Abstract: A transformer has two magnetic cores, at least one primary winding unit mounted in the magnetic cores, at least one secondary winding unit mounted in the magnetic cores and two rectifying circuit boards externally mounted beside the magnetic cores. An AC voltage output from the secondary winding unit is transmitted to and rectified by the rectifying circuit board. Therefore, the size of the transformer is compact, and heat energy generated by electronic elements mounted on the rectifying circuit board is effectively dissipated to maintain normal operation of the transformer. Further, since the transmission path from the secondary winding unit to the rectifying circuit board is short, energy loss is reasonably reduced when the transformer is operated under a high frequency situation or a larger current mode.

Abstract translation: 变压器具有两个磁芯，安装在磁芯中的至少一个初级绕组单元，安装在磁芯中的至少一个次级绕组单元和外部安装在磁芯旁边的两个整流电路板。 从次级绕组单元输出的交流电压被整流电路板传输并整流。 因此，变压器的尺寸紧凑，并且安装在整流电路板上的电子元件产生的热能被有效地消散，以保持变压器的正常工作。 此外，由于从次级绕组单元到整流电路板的传输路径短，当变压器在高频情况下或较大的电流模式下工作时，能量损耗被合理地减小。

公开(公告)号：US09997994B1

公开(公告)日：2018-06-12

申请号：US15594194

申请日：2017-05-12

Applicant: ACBEL POLYTECH INC.

Inventor： Cheng-Hsiao Luo ,  Chia-An Yeh ,  Wei-Liang Lin

IPC: G05F1/33 ,  G05F5/00 ,  H02M1/42 ,  H02M7/06 ,  H02M3/335 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M1/42 ,  G05F1/33 ,  G05F5/00 ,  H02M1/08 ,  H02M1/4233 ,  H02M3/33546 ,  H02M7/06 ,  H02M2001/0009

Abstract: A totem-pole PFC and a current-sampling unit of the totem-pole PFC are provided. The totem-pole PFC is electrically connected to an AC power source and a DC-to-DC converter, and is electrically connected to a load through the DC-to-DC converter. The current-sampling unit has a first sampling switch and a second sampling switch. The first sampling switch and the second sampling switch are controlled to be turned on and turned off so that a magnetizing current flows through the magnetizing inductor when a magnetizing inductor is magnetized and a demagnetizing current does not flow through the sampling resistor when the magnetizing inductor is demagnetized, thereby increasing the demagnetization efficiency and overcoming superimposed operations to improve current detection and increase conversion efficiency of the power conversion.

公开(公告)号：US09966861B1

公开(公告)日：2018-05-08

申请号：US15601586

申请日：2017-05-22

Applicant: ACBEL POLYTECH INC.

Inventor： Chia-An Yeh ,  Shu-Wei Chuang

IPC: H02M3/33 ,  H02M3/335

CPC classification number: H02M3/33592 ,  H02M3/33523 ,  H02M2001/0032 ,  H02M2001/342

Abstract: A control method for an active clamp converter has steps of: detecting a state of the load; when the state of the load is a light-load state, using a skipping mode to control a switch frequency of a master switch; when the state of the load is not the light-load state, using an ACF mode to control the switch frequency of the master switch. In the skipping mode, the switch frequency is decreased when the state of the load is getting light, thus providing an energy efficiency power saving function for the light-load state. In the ACF mode, the master switch is controlled to turn on while a reverse current is generated, thus the switching loss of the master switch is reduced.

公开(公告)号：US09448607B2

公开(公告)日：2016-09-20

申请号：US14529673

申请日：2014-10-31

Applicant: Acbel Polytech Inc.

Inventor： Chia-An Yeh

IPC: G06F1/28 ,  H02H3/20 ,  H02H7/12 ,  G06F1/26 ,  H03K17/14 ,  H02M1/42 ,  H02M3/335 ,  H02M1/00 ,  H02M1/32

CPC classification number: G06F1/28 ,  G06F1/26 ,  H02H3/20 ,  H02H7/1213 ,  H02M1/42 ,  H02M1/4225 ,  H02M3/335 ,  H02M3/33546 ,  H02M2001/0058 ,  H02M2001/007 ,  H02M2001/327 ,  H03K17/145 ,  H03K2217/0027 ,  Y02B70/126 ,  Y02P80/112

Abstract: An irregularity detection device for a power switch determines if a temperature-dependent resistance on a current path of the power switch is abnormal according to if a voltage on the current path is greater than or equal to a configuration value when the power switch is turned on, and generates an irregularity alarm associated with the power switch based on the determination result.

Abstract translation: 用于电源开关的不规则检测装置根据电流路径上的电压是否大于或等于电源开关接通时的配置值，确定电源开关的电流路径上的依赖于温度的电阻是否异常 并且基于确定结果产生与电力开关相关联的不规则警报。