Joshi Darshan

8 Questions 10 Answers 0 Followers

Questions related from Joshi Darshan

Why TCR would inject even harmonics firing beyond 90 to 180 degree firing window.?

as we fire the TCR beyond the firing window of 90 to 180 degree current waveform gets positive/ negative bias. what is the reason behind that.?

21 June 2019 7,753 1 View

How to avoid unwanted turn on of MOSFET due to ground bounce in full bridge AC-DC converter.?

At present i am working on 1 kW battery charger based on full bridge topology. the charger repeatedly failed due to shoot through. this is not due to overlapping of gate pulse as my maximum duty...

02 January 2019 7,187 3 View

What is the effect of temperature rise on inductance of high frequency transformer.?

I am using high frequency transformer with EE 55 Ferrite core in battery charger in half bridge topology. I am repeatedly facing MOSFET failure in charger. Initially i believed that shoot...

11 January 2018 3,943 3 View

What is the acceptable charging rate for fast charging..?

For high power & fast battery charger, what should be the acceptable charging rate.? I am using buck converter for the charging. actually for 100Ah battery(Li-Ion) if I provide 200 A charging,...

16 January 2017 1,683 2 View

Which is more preferable between zero cross detection and PLL for single phse grid tied inverter?

actually for grid synch. process i want to implement these two methods. among these, for PLL i would like to go with [Vgrid TO V(alpha-beta) TO V(d-q). so can anyone explain the whole process...

20 August 2016 5,451 7 View

How Boost converter helps in MPPT.?

As boost converter has nothing to do with power. it simply boosts the voltage. for a instance let assume that we have constant load. and we want to maintain output voltage of boost converter...

17 August 2016 3,178 15 View

What are the factors that must be considered while designing LCL filter for the 1 phase grid tied inverter.?

and what factors must be checked after calculating the vaues..? like THD,Resonant phenomena etc..

01 January 1970 3,516 3 View

What is the switching pattern for the HERIC Converter..?

As switches in the H bridge are switched @ high frequency, while others( Say S5 & S6) are switched at grid frequency. so what will be the pattern for that..?

01 January 1970 5,328 4 View