发明授权
- 专利标题： Controller and driver communication for switching regulators
- 专利标题（中）： 用于开关稳压器的控制器和驱动器通信
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申请号： US13025453申请日： 2011-02-11
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公开(公告)号： US08115468B2公开(公告)日： 2012-02-14
- 发明人: Chun Cheung , Weihong Qui , Robert Isham
- 申请人： Chun Cheung , Weihong Qui , Robert Isham
- 申请人地址： US CA Milpitas
- 专利权人： Intersil Americas Inc.
- 当前专利权人： Intersil Americas Inc.
- 当前专利权人地址： US CA Milpitas
- 代理机构： Fogg & Powers LLC
- 主分类号： G05F1/40
- IPC分类号： G05F1/40
摘要：
Pulse width modulation (PWM) controllers and output stage driver circuits and related methods of communicating switching regulator mode information. The controller includes circuitry that recognizes intervals when the load driven by the regulator is in a low power mode. Responsive to recognizing the low power mode, the controller generates a PWM mode signal having at least three (3) different levels including at least one intermediate level that is coupled to at least one driver. Based on the PWM mode signal, the regulator is switched into a power saving low power operational mode.
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