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This brief presents an MOS-only voltage reference circuit with high-slope proportional-to-absolute-temperature (PTAT) voltage generators for ultra-low-power applications. Biased by a nano-ampere current reference circuit, the PTAT voltage generator is realized by an asymmetrical differential cell with two additional cross-coupled nMOS/pMOS pairs, which enhance the slope of the PTAT voltage remarkably...
A resistor-less bandgap reference (BGR) for ultra-low power large-scale integrations (LSIs) is proposed in this paper. The BGR consists of a nano-ampere current reference circuit, a complementary-to-absolute-temperature (CTAT) voltage generator based on a diode connected MOSFET operating in subthreshold region, and a proportional-to-absolute-temperature (PTAT) voltage generator. A new topology that...
This paper designs a drive circuit of MOSFET for ultrasonic power. The requirements of high-speed drive circuit of MOSFET are presented based on the turn-on and turn-off processes. The design and implementation process of MOSFET driver circuit which meets the requirements of operation frequency to 1MHz, electrical-isolated, strong driving capability, are discussed in detail. And the feasibility of...
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