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This paper briefly reviews common state-of-the-art architectures of voltage regulators and their applicability to RFID. After that the design of a Low Drop-out (LDO) regulator using active resistances is presented, especially suitable for RFID applications. The chip is designed based on a 0.13 μm CMOS technology.
This paper proposes a novel floating gate MOSFET (FGMOS) based voltage-controlled grounded resistor (VCGR). The FGMOS is used to cancel the nonlinearity term present in the drain current equation of MOSFET operating in ohmic region. The implementation of nth order tunable high-pass filter using the proposed VCGR is also suggested. The proposed VCGR is simple, compact, accurate, and with low power...
In this work, the bulk-gate controlled circuit to improve the power supply ripple ratio (PSRR) of a Low Dropout Regulator (LDO) which deteriorates due to lowering power consumption is proposed. Designing with 0.25 mum CMOS process, the simulation results by HSPICE shown that the proposed circuit provides a high performance of PSRR even though 1/10 of the power consumption is reduced compare to the...
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