Invention Grant
US07881756B2 Level shifters and level shifting methods for suppressing current flow and generating fixed output values
有权
电平移位器和电平转换方法，用于抑制电流和产生固定输出值
- Patent Title: Level shifters and level shifting methods for suppressing current flow and generating fixed output values
- Patent Title (中): 电平移位器和电平转换方法，用于抑制电流和产生固定输出值
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Application No.: US11708354Application Date: 2007-02-21
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Publication No.: US07881756B2Publication Date: 2011-02-01
- Inventor: Jin-soo Park , Min-su Kim
- Applicant: Jin-soo Park , Min-su Kim
- Applicant Address: KR Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Gyeonggi-do
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: KR10-2006-0017308 20060222
- Main IPC: H04B1/38
- IPC: H04B1/38 ; H04M1/00
Abstract:
A level shifter includes a level shifting circuit which receives input signal from a function block and changes the voltage level of the input signal, to output an output signal; a current blocking circuit, which suppresses current flowing to the level shifting circuit in an input suppression mode in which power supplied to the function block is cut and deactivates the level shifting circuit; and an output control circuit, which controls the output signal of the level shifting circuit to have a direct current (DC) voltage level in the input suppression mode.
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