公开(公告)号：US20140071718A1

公开(公告)日：2014-03-13

申请号：US13610874

申请日：2012-09-12

申请人： Pao-Chuan Lin ,  Su-Yuan Lin ,  Hung-Che Chou

发明人： Pao-Chuan Lin ,  Su-Yuan Lin ,  Hung-Che Chou

IPC分类号： H02M3/335

CPC分类号： H02M1/32 ,  H02M3/33523

摘要： A structure of a fly-back power converting apparatus is disclosed. The structure includes a power transistor, a current detector, a pulse width modulation (PWM) signal generator and a current limiter. The power transistor is coupled to an input voltage and receives a PWM signal. The current detector detects a current output from the power transistor and generates a detecting voltage according to the current. The PWM signal generator generates the PWM signal according to a comparing result by comparing the detecting voltage and a standard voltage. The current limiter generates the standard voltage according to a turn-on time of the power transistor.

摘要翻译： 公开了一种回扫功率转换装置的结构。 该结构包括功率晶体管，电流检测器，脉宽调制（PWM）信号发生器和限流器。 功率晶体管耦合到输入电压并接收PWM信号。 电流检测器检测来自功率晶体管的电流输出，并根据电流产生检测电压。 根据比较结果，PWM信号发生器通过比较检测电压和标准电压来生成PWM信号。 电流限制器根据功率晶体管的导通时间产生标准电压。

公开(公告)号：US09025346B2

公开(公告)日：2015-05-05

申请号：US13610874

申请日：2012-09-12

申请人： Pao-Chuan Lin ,  Su-Yuan Lin ,  Hung-Che Chou

发明人： Pao-Chuan Lin ,  Su-Yuan Lin ,  Hung-Che Chou

IPC分类号： H02M7/00 ,  H02M3/335 ,  H02M1/32

CPC分类号： H02M1/32 ,  H02M3/33523

摘要： A structure of a fly-back power converting apparatus is disclosed. The structure includes a power transistor, a current detector, a pulse width modulation (PWM) signal generator and a current limiter. The power transistor is coupled to an input voltage and receives a PWM signal. The current detector detects a current output from the power transistor and generates a detecting voltage according to the current. The PWM signal generator generates the PWM signal according to a comparing result by comparing the detecting voltage and a standard voltage. The current limiter generates the standard voltage according to a turn-on time of the power transistor.

摘要翻译： 公开了一种回扫功率转换装置的结构。 该结构包括功率晶体管，电流检测器，脉宽调制（PWM）信号发生器和限流器。 功率晶体管耦合到输入电压并接收PWM信号。 电流检测器检测来自功率晶体管的电流输出，并根据电流产生检测电压。 根据比较结果，PWM信号发生器通过比较检测电压和标准电压来生成PWM信号。 电流限制器根据功率晶体管的导通时间产生标准电压。

公开(公告)号：US20080310199A1

公开(公告)日：2008-12-18

申请号：US12135199

申请日：2008-06-08

申请人： Yueh-Chang Tsai ,  Fu-Chun Huang ,  Hui-Tsung Yang ,  Su-Yuan Lin

发明人： Yueh-Chang Tsai ,  Fu-Chun Huang ,  Hui-Tsung Yang ,  Su-Yuan Lin

IPC分类号： H02H7/10

CPC分类号： H02H7/1203

摘要： A power supply protection method for a power supply device includes: detecting whether an output voltage of the power supply device reaches a voltage protection threshold to generate a detection result; generating a first control signal according to a power good input signal and the detection result; utilizing a fault protection circuit to decide whether to output a fault protection signal according to the first control signal; and using a short circuit protection circuit to receive the power good input signal and determining whether to generate a second control signal according to the power good input signal. When the power good input signal is not enabled during a specific time after the power supply device is started, the short circuit protection circuit is directly used to generate the second control signal into the fault protection circuit for triggering the fault protection circuit to output the fault protection signal.

摘要翻译： 电源装置的电源保护方法包括：检测电源装置的输出电压是否达到电压保护阈值以产生检测结果; 根据电力良好输入信号和检测结果产生第一控制信号; 利用故障保护电路来决定是否根据第一控制信号输出故障保护信号; 并且使用短路保护电路来接收电力良好的输入信号，并根据功率良好的输入信号确定是否产生第二控制信号。 当电源设备启动后的特定时间内电源良好输入信号未使能时，短路保护电路直接用于产生第二控制信号到故障保护电路中，用于触发故障保护电路输出故障 保护信号。