Invention Grant
US07701685B2 Digital pulse width modulator with built-in protection functions for over current, over voltage and temperature
有权
数字脉宽调制器，内置保护功能，适用于过电流，过电压和温度
- Patent Title: Digital pulse width modulator with built-in protection functions for over current, over voltage and temperature
- Patent Title (中): 数字脉宽调制器，内置保护功能，适用于过电流，过电压和温度
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Application No.: US11096043Application Date: 2005-03-31
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Publication No.: US07701685B2Publication Date: 2010-04-20
- Inventor: Kafai Leung , Ka Y. Leung , Donald E. Alfano
- Applicant: Kafai Leung , Ka Y. Leung , Donald E. Alfano
- Applicant Address: US TX Austin
- Assignee: Silicon Laboratories Inc.
- Current Assignee: Silicon Laboratories Inc.
- Current Assignee Address: US TX Austin
- Agency: Howison & Arnott, L.L.P.
- Main IPC: H02H3/08
- IPC: H02H3/08
Abstract:
An apparatus for providing over current protection for a digital pulse width modulator is disclosed. The apparatus includes first logic circuitry for generating a primary interrupt indicating that a detected output current is greater than a threshold current. Second logic circuitry generates a secondary input responsive to the occurrence to the primary interrupt for a predetermined number of times.
Public/Granted literature
- US20060022731A1 DPWM with built-in protection functions for over current, over voltage and temperature Public/Granted day:2006-02-02
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