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@BradtheRad : H bridge configuration of AC to DC converter converting 230VAC to 200VDC with 2A rating. Thanks for your practical inputs on how to go about choosing the LC values. We are designing a compensator to overcome the -180 phase shift introducted by the LC filter. Can we just increase...
Any references on how to go about modelling an transformer isolated H bridge buck converter in s or z domain?. I am planning to design a compensator for better closed loop response and stability. All the resources online point to modelling buck converter with a single switch and in non isolated...
Re: 500 Khz full bridge RF amplifier SMPS design and debugging
Hi.
@mtwieg : SMPS was tested with dummy load and it worked properly. RFPA drives a step up transformer which can be seen by the SMPS as an inductive load.
@treez : The load which RFPA feds varies from 10 to 5000 ohms, given the...
500 Khz full bridge RF amplifier SMPS design and debugging
Hi. I am in the process of designing a Voltage controlled SMPS with VOUT varying from 20 - 200 V set based on user input. Maximum current rating is set at 4 Amps. This SMPS will be the power source of Full bridge RF amplifier...
I got a lot of different inductor values and current rating, tried with them only to see the input current increase from 100mA to 250mA. Is there anything revealing about the problem ? When I got 250mA, inductance values I tested with include 560uH, 1mH, 680uH and 1.5mH.
Hi everyone. I was looking out for circuit to test inductor's saturation current made at my lab. I got to go through this circuit at this link https://ludens.cl/Electron/lmeter/lmeter.html and have plans to make it.
Power supply for the circuit is mentioned as 10V but the current rating of it...
Hi. I am now making Inductor saturation current measurement circuit from online to check if it is problem or not. If it is not the case, then control might be the problem. Without loading [light load of 15K ohm], the output voltage is at the set voltage and it is constant. That means the...
Hi Everyone. I am designing a 400W SMPS design[Max voltage : 200V Max Amp : 2A]. One completion of the design I tried to test it by connecting a 100 ohm 200W load to it. I made sure output voltage be set at 100V and over current protection at 3A. When I did turn it on, it drew only 100mA from...
Hi. I got the over current protection done through a hall effect sensor. Now it is working as intended. I still have a way to go with current transformer.
Hi FVM. Thanks a lot. I didn't think about it. I was planning to use bench top power supply as the power source. Do you think half bridge circuit be any better for testing AC current sensor ?
I finally got what he was telling about.I am now working on signal conditioning circuit for the hall sensor.
Sure. I am uploading a circuit to test the both hall effect current sensor and as well high frequency current transformer.
Please comment if there is anything that I need to add or change. Another question is do we need to give a current path for the current transformer when the MOSFET is ON ?
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