Invention Grant
- Patent Title: Voltage regulator including constant loop gain control
- Patent Title (中): 电压调节器包括恒定环路增益控制
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Application No.: US12539035Application Date: 2009-08-11
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Publication No.: US08575908B2Publication Date: 2013-11-05
- Inventor: Weihong Qiu , Shangyang Xiao , Nattorn Pongratanankul
- Applicant: Weihong Qiu , Shangyang Xiao , Nattorn Pongratanankul
- Applicant Address: US CA Milpitas
- Assignee: Intersil Americas LLC
- Current Assignee: Intersil Americas LLC
- Current Assignee Address: US CA Milpitas
- Agency: Graybeal Jackson LLP
- Agent Paul A. Bernkopf; Bryan A. Santarelli
- Main IPC: G05F1/10
- IPC: G05F1/10

Abstract:
A voltage regulation circuit includes a power stage for generating a regulated output voltage responsive to an input voltage and at least one PWM signal. A voltage divider circuit is connected to the output of the power stage and generates a feedback voltage. First circuitry generates the at least one PWM signal responsive to a voltage error signal, a filtered output voltage signal and a ramp voltage signal. The filtered output voltage is used for substantially removing loop gain change caused by the voltage divider circuit. A voltage compensation circuit generates the voltage error signal responsive to a feedback voltage and a reference voltage.
Public/Granted literature
- US20100072964A1 VOLTAGE REGULATOR INCLUDING CONSTANT LOOP GAIN CONTROL Public/Granted day:2010-03-25
Information query
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