centos7 梯子搭建:帮我翻译专业英语不要用软件~~在线等谢谢

There is a need of additional analog circuits, which are related to voltage generators, in
order to supply multiple voltages for smart cards, while the circuits are also related to
transceivers, to support card interface. Therefore, we have designed and integrated the
Smart Card Interface (SCI) controller to include a voltage generator. The SCI controller
consists of the digital blocks, designed with theVerilog Hardware Description Language
(HDL), based on ISO/IEC 7816-3 and the voltage generator, designed with the Simulation
Program with Integrated Circuit Emphasis (SPICE), to feed a stable supply voltage,
as shown in Figure 4.
The voltage generator that was developed can be divided into a reference voltage
generator, voltage doublers, and a voltage regulator [Favrat+98,Kim01]. In this study, a
charge pump circuit for positive high voltage generators is suitable,As well, the proposed
heap-pump circuit should provide a high voltage generator functionality, which not only
offers a high pumping efficiency through the elimination of a threshold voltage drop of
witches but also the simplest control single-phase clock scheme [Favrat+98,Kim01].
The fundamental limitation of conventional charge pump circuits is related to the
pumping gain-loss brought on by threshold voltage drops as well as body effects of pass
transistors [Favrat+98,Kim01]. This study proposes the use of a heap-pump circuit for the
development of a positive high voltage generator with a single-phase clock [Song+02h].