<p>A voltage level shifter for a direct coupling of an external voltage source to a common mode of a circuit may include an amplifier, a voltage-controlled current source, a first and second resistors. A first input of the amplifier may be connected to the common mode. A second input of the amplifier may, via the first and second resistors, receive a voltage indicative of the external voltage source. The output of the amplifier may indicate a voltage difference between the first and second inputs. The voltage-controlled current source may be controlled by the voltage difference to supply a current to a common node of the first and second resistors so that the voltage difference between the first and second inputs may be minimized.</p>
申请公布号
WO2012154401(A1)
申请公布日期
2012.11.15
申请号
WO2012US34777
申请日期
2012.04.24
申请人
ANALOG DEVICES, INC.;LIBERT, ROBERT;NGUYEN, KHIEM, QUANG