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This paper presents a new gate driver integrated by IZO thin-film transistors (TFTs) with the etch stop layer structure on the polyimide substrate, which consists of nine TFTs and two capacitors. There are several advantages for the proposed gate driver, such as simple circuitry, full-swing output, low power, and good reliability. The proposed gate driver has been successfully integrated in a flexible...
This paper presents a current-mode neural/muscular stimulator with an exponentially decaying stimulation current. The use of exponentially decaying current makes the voltage on the stimulating electrode constant during the stimulation, which eliminates the headroom and increases the power efficiency. A simple exponentially decaying current generator is proposed based on Taylor series approximation...
An inductively powered implantable neural stimulator IC is presented in this paper. It features closed-loop power control, active charge balancing, and electrode impedance check functions. The stimulator IC is powered through 13.56MHz inductive link and supports 33.3kbps bi-directional telemetry with ASK for forward command transmission and LSK for backward data transmission, achieving 20V high compliance...
Several key issues including system noise figure, input linearity, LO phase noise performance and transceiver setting-up time are recapitulated in this paper for the design of single-chip UHF RFID reader. The reader Rx noise figure is different between LBT and normal mode. The input linearity is decided by the maximum interferer due to Tx-to-Rx leakage. Phase noise requirements are to meet with Tx...
A novel single-chip 860-960MHz band UHF RFID reader transceiver IC is fabricated in 0.18μm CMOS technology. The transceiver consists of a compact high-linearity low-noise-figure RF front-end, a programmable analog baseband for Rx path; and an image reject filter, a PGA, a switchable up-conversion modulator and a driver amplifier for Tx path. The 3-bit 3rd-order DSM fractional-N frequency synthesizer...
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