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Questions related from Van Ha Nguyen
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...
12 December 2019 1,934 0 View
True random number generator (TRNG) for secure application in IoT has emerging as a hot topic nowaday (IoT devices + big data). For example in security of money transaction. There are many kind of...
06 June 2018 533 0 View
"A time-varying piece-wise linear waveform is necessary for PWM operation. In the case of voltage mode control, a ramp signal is generated inside the controller and used for the time-varying...
09 September 2017 8,172 8 View
I am confusing what is the different in modeling a load (unknown load). Some simulations model load as a pure resistor while the others use a current sink. I would like to know what is the...
09 September 2017 5,424 0 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...
06 June 2017 7,627 4 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...
06 June 2017 2,282 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...
10 October 2016 4,099 3 View
Dear, In compensation networks, we use OTA and Opamp as EA in DC-DC converters (also another applications). The different between them is the physical connection of the compensation network with...
01 January 1970 2,214 2 View
In the design of power converter ICs, sometimes the power switches are not given by the PDK. That means we have to design the power transistors as the switches (NMOS and PMOS). Since the power...
01 January 1970 6,706 8 View
I am curious what could be hot research/study topics in the fields related to CMOS integrated circuits (both analog and digital). My specific questions should be: 1. At device level: - What are...
01 January 1970 800 6 View