公开(公告)号：US20140218125A1

公开(公告)日：2014-08-07

申请号：US14022919

申请日：2013-09-10

Applicant: INNO-TECH CO., LTD.

Inventor： Chih Feng Lin ,  Shu-Chia Lin ,  Wen-Yueh Hsieh ,  Ching-Yuan Lin ,  Ting-Chin Tsen ,  Yi-Pin Chen

IPC: H03K7/08

CPC classification number: H03K7/08 ,  H02M1/08 ,  H02M1/38 ,  H02M3/33507

Abstract: A digital pulse width modulation controller includes a pulse width modulation controller, a selection unit having at least one selector, a comparison unit having at least one comparator, and a signal conversion unit having at least one digital-to-analog converter. The digital-to-analog converter generates a reference current and/or voltage. The comparator receives the reference current and/or voltage, and performs a comparison operation to generate a comparison signal based on a feedback signal. The selector selects one selection signal to input into the pulse width modulation controller, which receives other parameters set by a user or the system at the same time so as to control characteristics of the digital pulse width modulation signals, thereby improving the electric properties of a loading circuit.

Abstract translation: 数字脉宽调制控制器包括脉冲宽度调制控制器，具有至少一个选择器的选择单元，具有至少一个比较器的比较单元和具有至少一个数模转换器的信号转换单元。 数模转换器产生参考电流和/或电压。 比较器接收参考电流和/或电压，并且执行比较操作以基于反馈信号产生比较信号。 选择器选择一个选择信号以输入到脉宽调制控制器中，脉宽调制控制器同时接收由用户或系统设定的其它参数，以便控制数字脉宽调制信号的特性，从而改善电气特性 加载电路。