Invention Grant
- Patent Title: System, apparatus, and method for selectable voltage regulation
- Patent Title (中): 用于可选电压调节的系统,装置和方法
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Application No.: US12018442Application Date: 2008-01-23
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Publication No.: US07880531B2Publication Date: 2011-02-01
- Inventor: Jae Kwan Park
- Applicant: Jae Kwan Park
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: TraskBritt
- Main IPC: G05F1/10
- IPC: G05F1/10 ; G05F3/02

Abstract:
Apparatuses, systems, and methods are disclosed for generating, regulating, and modifying various voltage levels on a semiconductor device using a current mirroring digital-to-analog voltage regulator. The voltage regulator operates by mirroring a reference current onto a selectable current level and controlling the selectable current level with a digital input to a plurality of switched CMOS devices connected in parallel. The switched CMOS devices generate the selectable current level responsive to the digital input and proportional to the reference current. The selectable current level is combined with an output of a voltage divider to generate a monitor signal. The monitor signal is compared to a reference voltage and the results of the comparison controls a charge pump to generate a pumped voltage. The pumped voltage is fed back to the voltage divider, which includes a feedback resistor and a reference resistor connected in series between the pumped voltage and ground.
Public/Granted literature
- US20090184697A1 SYSTEM, APPARATUS, AND METHOD FOR SELECTABLE VOLTAGE REGULATION Public/Granted day:2009-07-23
Information query
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