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A modified regulated cascode structure having high output swing capability is presented. This structure is used in the implementation of a current mirror. The current mirror possesses wide input and wide output swing capabilities, suitable for low voltage operation. P-SPICE simulations at 0.25 ??m CMOS technology validate the proposed current mirror for currents from 30 nA to 220 ??A, at 1 V with...
An ultra low-power CMOS low-dropout regulator (LDO), consuming only 680-nA quiescent current with fast transient response and 10-mA load capability, is proposed in this paper. It is designed in a 0.35-μm CMOS technology and verified by HSPICE simulations. With the proposed internal frequency compensation method, the LDO can be stabilized without minimal requirement of equivalent-series-resistance...
Two modified regulated cascode amplifier (RCA) structures are presented that reduce the output compliance voltage requirements of conventional RCA. One structure utilizes a push-pull amplifier to enhance output resistance whereas the other structure incorporates a level shifter in the conventional RCA structure. P-SPICE simulations have been used to validate the proposed structures at ??0.6 V for...
Compact diode models normally available in commercial simulators like Spectre or HSPICE do not scale the series resistance with P-N distance. The standard diode models scale with drawn area, assuming the current is vertical. However the diodes used for ESD protection in CMOS are operating as lateral diodes, so the resistance should scale with width, not area. This is a serious problem for circuit...
IGBT is one of the key components of motor driving system for electric vehicles, and its reliability directly affects the reliability of the electric vehicles. The reliability of the IGBT is affected by the loss and the junction temperature in working condition. To predict the IGBTpsilas loss and thermal response, especially in the case of adverse dynamic conditions, the dynamic loss model and the...
A part of the signaling systems related to a rapid transit railway is using the track circuit to detect trains and to deliver train operation services on carriage. Because the interval of one block for a rapid transit railway is as long as 1500 [m], transmission of signal information throughout a track circuit has some troubles. So a compensation capacitor should be installed every 20 [m]. Moreover,...
The charged controlled model is presented as an effective method to simulate junction barrier schottky (JBS) silicon carbide diodes. Proven as a valuable approach for silicon devices, this model can also account for wide bandgap energy semiconductors. The model was implemented in Oread's SPICE software package using analog behavioral modelling. The simulation combines the efficiency of a traditional...
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