Invention Grant
US08773871B2 Method and apparatus for sensing multiple voltage values from a single terminal of a power converter controller
有权
用于从功率转换器控制器的单个端子感测多个电压值的方法和装置
- Patent Title: Method and apparatus for sensing multiple voltage values from a single terminal of a power converter controller
- Patent Title (中): 用于从功率转换器控制器的单个端子感测多个电压值的方法和装置
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Application No.: US13777438Application Date: 2013-02-26
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Publication No.: US08773871B2Publication Date: 2014-07-08
- Inventor: Alex B. Djenguerian , Balu Balakrishnan
- Applicant: Power Integrations, Inc.
- Applicant Address: US CA San Jose
- Assignee: Power Integrations, Inc.
- Current Assignee: Power Integrations, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Blakely Sokoloff Taylor & Zafman LLP
- Main IPC: H02M3/335
- IPC: H02M3/335
Abstract:
A controller for use in a power converter includes a sensor coupled to receive a signal from a single terminal of the controller. The signal from the single terminal represents an output voltage of the power converter during at least a portion of an off time of a power switch and a line input voltage during a portion of an on time of the power switch. A switching control is to be coupled to switch the power switch to regulate the output of the power converter in response to the sensor. A power limiter is coupled to the sensor to output a power limit signal to the switching control in response to the line input voltage of the power converter. The switching control is further coupled to switch the power switch to regulate the output of the power converter in response to the power limit signal.
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