公开(公告)号：US08135145B2

公开(公告)日：2012-03-13

申请号：US12507463

申请日：2009-07-22

申请人： Chun-Wei Lin ,  Yu-Cheng Lin ,  Bing-Shiun Hsieh

发明人： Chun-Wei Lin ,  Yu-Cheng Lin ,  Bing-Shiun Hsieh

IPC分类号： H04B15/00 ,  H03F3/38 ,  H03F1/04 ,  H03F3/217

CPC分类号： H04R5/04

摘要： The present invention discloses a multi-level output signal converter, which is connected to an audio amplifier. The audio amplifier comprises a comparing/measuring device, an encoder and an output unit. The multi-level output signal converter comprises a timing processing unit and a multi-level converter. The timing processing unit is connected to the comparing/measuring device and the encoder. The timing processing unit includes a plurality of flip-flops and a timing summing element. The flip-flop receives a first signal from the comparing/measuring device and outputs the first signal to the timing summing element. The encoder converts the first signal into a second signal. The multi-level converter is connected to the encoder and the output unit. The encoder transmits the second signal to the multi-level converter, and the multi-level converter thus outputs a third signal to the output unit.

摘要翻译： 本发明公开了一种连接到音频放大器的多电平输出信号转换器。 音频放大器包括比较/测量装置，编码器和输出单元。 多电平输出信号转换器包括定时处理单元和多电平转换器。 定时处理单元连接到比较/测量装置和编码器。 定时处理单元包括多个触发器和定时求和元件。 触发器从比较/测量装置接收第一信号，并将第一信号输出到定时求和元件。 编码器将第一信号转换成第二信号。 多电平转换器连接到编码器和输出单元。 编码器将第二信号发送到多电平转换器，并且多电平转换器因此向输出单元输出第三信号。

公开(公告)号：US20130093489A1

公开(公告)日：2013-04-18

申请号：US13274727

申请日：2011-10-17

申请人： Chun-Wei Lin ,  Bing-Shiun Hsieh

发明人： Chun-Wei Lin ,  Bing-Shiun Hsieh

IPC分类号： H03L5/00

CPC分类号： H03K7/08

摘要： A signal converter equipped with an overvoltage protection mechanism includes a pulse width modulation unit, a timing processing unit, an overvoltage detection unit, a pulse width control unit and a multi-level conversion unit. The pulse width modulation unit converts an analog signal into a pulse signal. The timing processing unit converts the pulse signal into a digital signal and outputs the digital signal to the overvoltage detection unit. When the digital signal is higher than the maximum limitation or less than the minimum limitation, the overvoltage detection unit outputs an over-threshold signal to the pulse width control unit to allow the pulse width modulation unit to perform feedback adjustment and prevent the multilevel conversion unit connected to the timing processing unit from causing burnout of downstream circuits because the multilevel conversion unit outputs maximum power intensity of signal over a long time.

摘要翻译： 配备有过电压保护机构的信号转换器包括脉宽调制单元，定时处理单元，过电压检测单元，脉冲宽度控制单元和多电平转换单元。 脉冲宽度调制单元将模拟信号转换为脉冲信号。 定时处理单元将脉冲信号转换为数字信号，并将数字信号输出到过电压检测单元。 当数字信号高于最大限制或小于最小限制时，过电压检测单元向脉冲宽度控制单元输出过阈值信号，以允许脉冲宽度调制单元执行反馈调整并防止多电平转换单元 连接到定时处理单元从而导致下游电路的烧坏，因为多电平转换单元输出长时间的信号的最大功率强度。

公开(公告)号：US20120300947A1

公开(公告)日：2012-11-29

申请号：US13113289

申请日：2011-05-23

申请人： Chun-Wei LIN ,  Bing-Shiun Hsieh

发明人： Chun-Wei LIN ,  Bing-Shiun Hsieh

IPC分类号： H03G11/00 ,  H03K7/08

CPC分类号： H03K7/08 ,  H03G3/30

摘要： A signal converter with an overcurrent protection mechanism comprises a pulse width modulation (PWM) unit, a timing processing and multi-level conversion unit, an overcurrent detection unit, and a pulse width control unit. The PWM unit converts an analog signal into a pulse signal. The timing processing and multi-level conversion unit receives the pulse signal and converts the pulse signal into a multi-level digital signal. The overcurrent detection unit has a reference voltage terminal outputting a reference voltage. The overcurrent detection unit receives the multi-level digital signal and converts the multi-level digital signal into a detection voltage. The pulse width control unit compares the detection voltage with the reference voltage and outputs a control signal to the PWM unit. Thereby is formed a feedback mechanism to adjust the output voltage and prevent the succeeding circuit from being damaged caused by overcurrent of the pulse signal.

摘要翻译： 具有过电流保护机构的信号转换器包括脉宽调制（PWM）单元，定时处理和多电平转换单元，过电流检测单元和脉冲宽度控制单元。 PWM单元将模拟信号转换为脉冲信号。 定时处理和多电平转换单元接收脉冲信号并将脉冲信号转换成多电平数字信号。 过电流检测单元具有输出参考电压的参考电压端子。 过电流检测单元接收多电平数字信号并将多电平数字信号转换成检测电压。 脉冲宽度控制单元将检测电压与参考电压进行比较，并向PWM单元输出控制信号。 从而形成一个反馈机构来调节输出电压并防止后续电路被脉冲信号的过电流损坏。