Invention Grant
US08299772B2 Method and apparatus for implementing slew rate control using bypass capacitor
失效
使用旁路电容实现转换速率控制的方法和装置
- Patent Title: Method and apparatus for implementing slew rate control using bypass capacitor
- Patent Title (中): 使用旁路电容实现转换速率控制的方法和装置
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Application No.: US13272950Application Date: 2011-10-13
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Publication No.: US08299772B2Publication Date: 2012-10-30
- Inventor: David Kung , Leif Lund
- Applicant: David Kung , Leif Lund
- 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: G05F1/10
- IPC: G05F1/10 ; G05F1/00

Abstract:
An example circuit includes a regulator circuit coupled to first and second nodes. A capacitance circuit and a slew rate control circuit are coupled between the first and second nodes. The regulator circuit is coupled to charge a capacitance of the capacitance circuit with a charge current. The slew rate control circuit is coupled to control a change in voltage over change in time between the first and second nodes during a power up mode of the circuit. The slew rate control circuit further includes a switch and a resistor. The slew rate control circuit is coupled to switch the switch in response to a voltage between the first and second nodes. A voltage drop across the resistor is limited to a base-emitter voltage drop of a transistor coupled between the first and second nodes to set the change in voltage over change in time.
Public/Granted literature
- US20120068680A1 METHOD AND APPARATUS FOR IMPLEMENTING SLEW RATE CONTROL USING BYPASS CAPACITOR Public/Granted day:2012-03-22
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