公开(公告)号：US09755422B2

公开(公告)日：2017-09-05

申请号：US14022835

申请日：2013-09-10

Applicant: Delta Electronics, Inc.

Inventor： Che-Hung Lin ,  Yueh-Lung Huang ,  Yen-Hung Chen

IPC: H02H3/20 ,  H02H7/09

CPC classification number: H02H7/09 ,  H02H3/207

Abstract: A power-protection apparatus is provided. The apparatus includes an over-voltage protection unit for generating an over-voltage detection signal when the power supply of the load is over the upper limit of a predetermined voltage range; an under-voltage protection unit for generating an under-voltage detection signal when the power supply of the load is under the lower limit of the predetermined voltage range; a working-state detection unit for receiving a control signal and generating a working-state detection signal when the level time-change rate of the control signal is over a time-change rate threshold; and a power-control unit coupled to the over-voltage protection unit, the working-state detection unit and the under-voltage protection unit for controlling the on and off of the power supply according to the over-voltage detection signal, the under-voltage detection signal or the working-state detection signal.

公开(公告)号：US09178516B1

公开(公告)日：2015-11-03

申请号：US14465238

申请日：2014-08-21

Applicant: DELTA ELECTRONICS, INC.

Inventor： Che-Hung Lin ,  Yueh-Lung Huang ,  Yen-Hung Chen

IPC: H03L5/00 ,  H03K19/0175

CPC classification number: H03K17/687 ,  H03K19/017509 ,  H03K2217/0063 ,  H03K2217/0081

Abstract: A voltage-level shift apparatus includes a first level shift unit, a second level shift unit, a charging unit, and a discharging unit. The first level shift unit receives a reference voltage and a power voltage to output a level-shifting voltage. The second level shift unit is connected to the first level shift unit and receives the level-shifting voltage. The charging unit receives a control voltage to provide an output voltage. The discharging unit is connected to the charging unit and receives the control voltage and the reference voltage. When the control voltage turns on the charging unit and turns off the discharging unit, the charging unit is charged by the level-shifting voltage. When the control voltage turns off the charging unit and turns on the discharging unit, the discharging unit is discharged from the output voltage.

Abstract translation: 电压电平移位装置包括第一电平移位单元，第二电平移位单元，充电单元和放电单元。 第一级移位单元接收参考电压和电源电压以输出电平移位电压。 第二电平移位单元连接到第一电平移位单元并接收电平移位电压。 充电单元接收控制电压以提供输出电压。 放电单元连接到充电单元并接收控制电压和参考电压。 当控制电压接通充电单元并关闭放电单元时，充电单元由电平移位电压充电。 当控制电压关闭充电单元并打开放电单元时，放电单元从输出电压放电。