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Questions related from Van Ha Nguyen
Hi all, As new DC-DC converters are being proposed, associated control method should be proposed and based on the small-model signal analysis of the DC-DC converters. Using average space state...
07 January 2021 7,459 3 View
Hello, Usually, by biasing Vgs < Vthreshold of MOSFET, we can push MOS into sub-threshold region. My curious question is: How much value of Vgs is "good" as a "rule of thumb"? I have referenced...
30 December 2019 9,229 1 View
Dear all, There are lots of published work on sub-threshold operation and models of MOS devices (example: on Journal of Solid-State Circuits, IEEE). For a good and highly-credited one, could you...
09 December 2019 6,100 5 View
In design of DC-DC converters (buck, boost, buck-boost), selecting proper values of inductor and capacitor of power stage are important for determining the performance of overall system. In the...
22 June 2017 7,584 3 View
There are surges in the current of PMOS and NMOS during dead-time (as in the attached figure). I have several questions: - First, is it serious or bad in my design? And if it is not good, how to...
18 June 2017 1,769 3 View
Dear all, In design of Low Drop-out Voltage Regulator (LDO), what type of opamp should be used? I usually design LDO with folded cascode opamp and it seems to get matched with the...
04 October 2016 9,889 3 View
Dear, I am working on several CMOS processes. I have also checked the product of Cox and Mobility of NMOS and PMOS transistors. Usually, the ratio between Cox*Mobility of NMOS and Cox*Mobility of...
02 October 2016 4,309 4 View
