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My question specifically was "Is an isolation transformer necessary for a 450V to 200V 2.4 kW buck converter so as to meet any UL/IEC safety requirements/standards pertaining to such equipment"
I think the answer to the question is no, but it is still required to pass the necessary electrical...
The sentence that I quoted was in the section titled "Non-Isolated Topologies" of this wiki article. I took it to mean that a non-isolated switched-mode power supply (buck converter in this case) must have an input voltage of less than 60 V DC in order for it to be applicable for UL safety...
I am building a 2.4 kW mppt buck converter to step down from 450V to 200 V to connect an array of solar panels to a resistive load. I aim to build the converter to meet IEC standards and UL safety requirements. I was thinking that I could build a converter without an isolation transformer, but...
I am designing a DC-DC converter to connect between an array of solar photo-voltaic panels and a 15-25 Ohm resistive heating element in a domestic hot water cylinder. The specs for the panels are 160V open circuit voltage and 15A short circuit current for 1000w/m^2 irradiance. At the Maximum...
I'm simulating a Gilbert Cell in Microwave Office but I'm not getting the desired output waveforms.
My waveforms look like this
but I'm trying to get them to look like this
I'm sure it has got to do with the way the transistors are biased but I'm not sure what resistor values to adjust...
Thanks Vfone
I've redone the schematic, pretty much just copied the Microwave Office example. Using ports now instead of AC sources. Do you think that you would be able to tell me how to get the waveform to look more like this
Rather than like these waveforms. The pink waveform is a...
I'm trying to simulate a Gilbert Cell frequency multiplier in AWR Microwave office. I'm having issues getting the simulation to run as I am getting the following error:
"specified tones must be contiguous starting from one"
I have made sure that ID names for my AC sources start from 1 but that...
Hi,
I am fairly new to RF simulation.
I am using Microwave Office to simulate a two port network consisting of a BJT and it's biasing circuit. How do I determine the source reflection coefficient Gamma_S i.e. the reflection coefficient seen looking back in to the 50 Ohm impedance of port 1...
Why is a Signal Conductor required for TEM mode in 3D Finite Element Software Package
Hello fellow Emag bandits :-)
I am using an EM simulation software package called HFWorks.It is an 3D FEM package and is an add on to the SolidWorks CAD software.
When doing a simulation of,for example,a...
I am using the simulation software HFWorks, which is a 3D electromagnetic FEM solver integrated with SolidWorks CAD.
I am using the software to simulate antennas. I am wondering what the difference is between the impedance that you assign to a lumped port feeding the antenna structure and the...
Hello
I am reading RF Circuit Design by Chris Bowick.I am a little mystified by one of the provided examples within the resonant circuit section of the book. The images provide a description of the problem.I am wondering how the effective shunt resistance is calculated to be 4500 Ohms...
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