Invention Grant
- Patent Title: Systems and devices for dynamically scaled charge pumping
- Patent Title (中): 用于动态缩放电荷泵送的系统和设备
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Application No.: US12708533Application Date: 2010-02-18
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Publication No.: US08093941B2Publication Date: 2012-01-10
- Inventor: Bradford Lawrence Hunter , Richard David Nicholson , Tsing Hsu
- Applicant: Bradford Lawrence Hunter , Richard David Nicholson , Tsing Hsu
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent William B. Kempler; Wade J. Brady, III; Frederick J. Telecky
- Main IPC: G05F1/10
- IPC: G05F1/10

Abstract:
Systems and devices for dynamically scaled charge pumping are presented. Example embodiments of the disclosed systems of dynamically scaled charge pumping enable regulation of the output voltage at a particular ratio and to dynamically control the ratio based on the input voltage. A charge pumping circuit is enabled by an oscillator. The charge pump oscillator is enabled by the output of a comparator. The comparator compares an input voltage to a comparator voltage, which is a divided version of the output voltage. The output voltage is referenced to a regulated voltage and the comparison voltage is divided between the two voltages by a resistor divider. The regulated voltage remains flat until the input voltage equals the reference voltage. At that point, the regulated voltage will begin to rise and follow the input voltage. Before the reference voltage is reached, the output voltage equals the input voltage multiplied by the resistor divider ratio. Once the input voltage reaches the reference voltage, the difference between the output voltage and the input voltage becomes a constant.
Public/Granted literature
- US20110089996A1 Systems and Devices for Dynamically Scaled Charge Pumping Public/Granted day:2011-04-21
Information query
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