Invention Grant
- Patent Title: Pulse width modulation controller, circuit and method thereof with short circuit protection
- Patent Title (中): 脉宽调制控制器，电路及其短路保护方法
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Application No.: US12275379Application Date: 2008-11-21
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Publication No.: US07893679B2Publication Date: 2011-02-22
- Inventor: Chien Peng Yu , Yi Cheng Wang , Ye Hsuan Yan , Chih Chi Hsu
- Applicant: Chien Peng Yu , Yi Cheng Wang , Ye Hsuan Yan , Chih Chi Hsu
- Applicant Address: TW Science-Based Industrial Park, Hsinchu
- Assignee: Advanced Analog Technology, Inc.
- Current Assignee: Advanced Analog Technology, Inc.
- Current Assignee Address: TW Science-Based Industrial Park, Hsinchu
- Agent Winston Hsu; Scott Margo
- Priority: TW97128942A 20080731
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
A PWM comprises a voltage transformation module, a voltage-sensing module and a timer. The voltage transformation module is configured to transform an input voltage into an output voltage. The voltage-sensing module is coupled to the voltage transformation module and configured to detect a voltage of a first terminal, wherein the voltage of the first terminal is proportional to the output voltage. The timer is configured to measure the time duration for which the voltage of the first terminal is lower than a reference voltage, wherein the timer initiates a short circuit signal when the time duration is greater than a predetermined value.
Public/Granted literature
- US20100026266A1 PULSE WIDTH MODULATION CONTROLLER, CIRCUIT AND METHOD THEREOF WITH SHORT CIRCUIT PROTECTION Public/Granted day:2010-02-04
Information query
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