公开(公告)号：US20140240029A1

公开(公告)日：2014-08-28

申请号：US14058577

申请日：2013-10-21

Applicant: DELTA ELECTRONICS, INC.

Inventor： Te-Chih PENG ,  Hsin-Chung NIU

IPC: H03K3/013

CPC classification number: H02M7/53871 ,  H02M1/38

Abstract: A method of operating a bridge switch control circuit is disclosed for controlling at least one pair of complementary switches. First, a first driving signal, a second driving signal, a first latching signal, and a second latching signal are provided. The first driving signal and the second driving signal drive the complementary switches. Afterward, it is to judge whether the first driving signal triggers one of the complementary switches by a rising-edge manner. If YES, the first latching signal is controlled at a high-level status and the second latching signal is simultaneously controlled at a low-level status. Afterward, it is to judge whether the second driving signal triggers the other of the complementary switches by a rising-edge manner. If YES, the second latching signal is controlled at a high-level status and the first latching signal is simultaneously controlled at a low-level status.

Abstract translation: 公开了一种操作桥开关控制电路的方法，用于控制至少一对互补开关。 首先，提供第一驱动信号，第二驱动信号，第一锁存信号和第二锁存信号。 第一驱动信号和第二驱动信号驱动互补开关。 之后，判断第一驱动信号是否以上升沿触发互补开关之一。 如果是，则将第一锁存信号控制在高电平状态，并且第二锁存信号同时被控制在低电平状态。 之后，判断第二驱动信号是否以上升沿触发另一个互补开关。 如果是，则将第二锁存信号控制在高电平状态，并且第一锁存信号同时被控制在低电平状态。

公开(公告)号：US20180097442A1

公开(公告)日：2018-04-05

申请号：US15599450

申请日：2017-05-18

Applicant: DELTA ELECTRONICS, INC.

Inventor： Hsin-Chung NIU ,  Chih-Hong WU ,  Chia-Hao CHANG ,  Ming-Hsiang LO

IPC: H02M1/42 ,  G05F1/70 ,  G05F5/00

CPC classification number: H02M1/4266 ,  G05F1/70 ,  G05F5/00 ,  H02M1/32 ,  H02M1/36 ,  H02M1/4225 ,  H02M2001/0006 ,  H02M2001/0032 ,  H02M2001/0083 ,  Y02B70/126 ,  Y02P80/112

Abstract: A power supply device includes a PF correction circuit, a power switching circuit and a control circuit. The PF correction circuit converts an input voltage to a bus voltage according to a control signal to supply a later stage circuit. The power switching circuit selectively switches to conduct a first source or a second source to the PF correction circuit to provide the input voltage to the PF correction circuit. The control circuit outputs the control signal to the PF correction circuit. When the control circuit detects a first voltage of the first source connecting to the PF correction circuit is abnormal, the control circuit determines whether a second voltage of the second source is smaller than the bus voltage and controls the power switching circuit to switch when the second voltage is smaller than the bus voltage to conduct the second source to the PF correction circuit.

公开(公告)号：US20150069842A1

公开(公告)日：2015-03-12

申请号：US14228369

申请日：2014-03-28

Applicant: Delta Electronics, Inc.

Inventor： Hsin-Chung NIU ,  Yuan-Sheng LEE ,  Po-Wen HSUEH

IPC: H02J4/00

CPC classification number: H02J9/061 ,  G05F1/563 ,  H02H3/08 ,  H02H9/02 ,  Y10T307/615

Abstract: A power supply conversion system receives an external power source to supply power to a load. The power supply conversion system includes at least one main power apparatus, at least one auxiliary power apparatus, a main switch, an auxiliary switch, and a control unit. The control unit turns on the main switch to restore the external power source when the control unit detects that the external power source is normally restored, and jointly supply power to the load with the auxiliary power apparatus. Especially, the output voltage of the main power apparatus is greater than the output voltage of the auxiliary power apparatus. In addition, the control unit disconnects the auxiliary power apparatus supplying power to the load when the control unit detects that the main power apparatus completely supplies power to the load.

Abstract translation: 电源转换系统接收外部电源向负载供电。 电源转换系统包括至少一个主电源设备，至少一个辅助电源设备，主开关，辅助开关和控制单元。 当控制单元检测到外部电源正常恢复时，控制单元打开主开关以恢复外部电源，并与辅助电源设备共同向负载供电。 特别地，主电力设备的输出电压大于辅助电力设备的输出电压。 此外，当控制单元检测到主电力设备完全向负载供电时，控制单元断开向负载供电的辅助电力设备。