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Hi folks,
I am completely new to Switching Power supplies, but I need to design and build one with dual symmetrical output (±100V or preferably ±85V) with 0.8A (or 1A) output current. The power supply must provide isolation (1kV is enough) and not be bulky like Power-Transformer based designs...
Thanks Orson for your prompt response.
Could you please explain a little bit more about what you've suggested? I'm new in SMPS and all my previous experiences were in linear power supplies. Do you know useful articles/pages (including schematics) on the internet for better understanding? I...
Hi there,
In my new project, I need to design and built a digitally programmable power supply. The specs are as below:
* Vout max = 2 KV
* I out max < 2 mA (1 mA is OK)
* Resolution: 10 Volt
* The output should be fast enough to change within few hundred milliseconds.
The linear approach...
Thank you Frank for your quick response!
Still, I have some questions. Could you please explain more about the need for "more drive" at output stage? or do you have any useful online text regarding this issue? (I couldn't follow exactly this point)
Another question is that why does the supply...
I am using a high frequency power operational amplifier (PA107DP) in the inverting configuration, without an external load as shown here:
According to my measurements, when I increase the frequency, the supply current (drawn from high voltage supply) increases too, but it has a pick near 5...
Hi folks,
I designed a signal amplifier and need to measure the amplitude of the output accurately (less that %5 error) to be independent of oscilloscopes. Since output signal has some sort of distortion, especially at high frequencies, the idea of using RMS converters is useless. Furthermore...
Thank you so much Fvm and jiripolivka.
We want to use this amplifier in some Electrophoresis applications and electro-rotation. In such a high frequency, we would expect some promising phenomenon happen for cells/bio-particles.
Could you please give me a starting point for this matter? (like a...
Thanks guys for your quick replies. So as far as I understand from your replies, implementation of this special RF amplifier is not "impossible", but it required good command of RF design. For giving more details on what I want, I would say that the load is normally capacitive (a few pf) and the...
Hi folks,
My professor asked me to determine if it's possible to design a high voltage (output: 30~40 V p-p) amplifier which is to operate at so high frequency range of 1 GHz or not. We want to use this dreamy device in some biomedical application, so no high output current is needed. I think...
Thank you so much for your helpful response and sorry for my late feedback. Meanwhile, I have some further questions regarding this circuit and I would be thankful if you or other friends help me.
1) Could you please you tell me which Zener diodes and transistors (I mean the part numbers and...
Hi,
I am going to design a high voltage/high frequency amplifier with apex PA107 and according to the datasheet, it needs both +100V and -100V for supply voltages. off course since the maximum output voltage is not supposed to be higher than 100~120 V (p.p), I think a +70/-70 V power supply is...
Hi.
I'm studying in electrical engineering as a MSc student. My research is in the field of Electron and charged Particle Optics. I've read about CST Studio Suite in CST's homepage and other academic publications and interested in testing and working with it. I don't know whether CST has a...
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