Invention Grant
- Patent Title: Device for supplying temperature dependent negative voltage
- Patent Title (中): 提供温度依赖负电压的装置
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Application No.: US12727018Application Date: 2010-03-18
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Publication No.: US07990206B2Publication Date: 2011-08-02
- Inventor: Kang-Seol Lee
- Applicant: Kang-Seol Lee
- Applicant Address: KR Gyeonggi-do
- Assignee: Hynix Semiconductor Inc.
- Current Assignee: Hynix Semiconductor Inc.
- Current Assignee Address: KR Gyeonggi-do
- Agency: IP & T Group LLP
- Priority: KR10-2007-0020726 20070203
- Main IPC: G05F1/10
- IPC: G05F1/10 ; G05F3/02
Abstract:
A negative voltage supply device includes a negative voltage detector and a negative voltage pumping unit. The negative voltage pumping unit pumps a negative voltage in response to a detection signal. The negative voltage detector detects a level of a negative voltage by using a first element and a second element, which are different in the degree of change in their respective resistance values depending on the temperature, and outputs the detection signal. The detection signal informs the negative voltage pumping unit that pumping of the negative voltage is no longer needed.
Public/Granted literature
- US20100188139A1 DEVICE FOR SUPPLYING TEMPERATURE DEPENDENT NEGATIVE VOLTAGE Public/Granted day:2010-07-29
Information query
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