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Thanks a lot treez and KlausST.
I think my question was not clear enough. Having battery voltage of 4.2V (fully charged) down to 3V (fully drained), I need stable 3.3V and ±5V. Based on the attached schematic, will there be any interference between the two switching regulators? Besides, in terms...
Hello Everyone,
In terms of noise and interference, what are the consequences of using an independent DC-DC buck converter (or a DC-DC buck-boost) and an independent DC-DC boost converter on a battery-powered design (one PCB)? Are there other consequences which need to be prevented / taken...
Hello everyone,
Does it technically make sense to have multiple Switching (class E) RFPAs operating at the same frequency (e.g. 10 MHz) for independent loads on the same PCB? What are the possible side-effects?
FYI, the circuit is designed for wireless power transfer, and so, no data are...
Thank you for everyone's advice. I really appreciate your helps.
First of all, a bit more clarification about the problem:
- The circuit is designed for the acquisition of biological signals. so, the input signal may vary from 1 Hz to 10 Hz and obviously, they are very noisy.
- Since the...
Hi all,
I have a 32-ch Multiplexer with 32 signals (with maximum frequency of 10 Hz) connected to the inputs. By sweeping from ch-1 to ch-32, the output is read by an ADC through an amplification circuit. Could anyone tell me what the minimum cut-off frequency of the LFP at the ADC should be...
Dear All
Hi,
I have a wireless power transfer circuit as follows:
Now, I can measure the DC rectified voltage equal to 5.5V, 3.5V, 1.5V and 0.5V for Loads equal to open, 100K, 10K and 1K, respectively. However, I don't understand why the rectified voltage decreases while the value of RLoad...
Dear All
Hello,
How can I generate a Planar Rectangular Coil on EAGLE?
(similar to "spiral-coil.ulp" for spiral coils, is there any ULP for rectangular coils?)
Any help is appreciated, in advance!
Politecnico
Re: 4-Layer PCB Laboratory Prototyping
Thank you Klaus.
Therefore, the only problem is with Buried Via? Assuming that the layers (from top to bottom) are:
1- Signal
2- Ground
3- Power
4- Signal
the Buried Via may not be necessary. So, in case of Through and Blind Vias, they are manually...
Hi guys
I have the laboratory experience of prototyping single 2-layer PCBs. Regarding the complexity of my new design and board size limitation, I am going to consider a 4-layer PCB.
Here is my question: since Through Hole and Blind and Buried vias are parts of multi-layer PCBs, is it...
Hello everybody
Although my question may seem to be trivial, I'm still looking for a convincing answer!
Regarding PCB routing, at the time of right-turn, we have the options of 45-degree routing as well as Arc routing. While I have read many reviews that Arc is much more reliable, still many...
Hi guys
I hope you are all having nice weekends
I have started to focus on POLISAR (the combination of POLSAR & INSAR). Can anybody help me understand:
1) What advantages of polSAR and inSAR are significant that we combine them?
2) In what applications, UAVSAR employs polSAR and/or inSAR?
3)...
Thanks a lot for your kind reply.
Actually, Si2318 Datasheet says it could switch at 4.5V, as well 10V. Does it mean far from cost, ... there would be no critical problem of biasing the drain at 6V?
Hi guys
What happens if I bias a Mosfet far below the nominal Vdd? In case of Si2318CDS, nominal Vdd is 40V and I just need to bias it at Vdd~6V. Could there be some kind of malfunction?
Thanks a lot, in advance
Hi all
I'm trying to simulate a circuit including FAN7085 which has an encrypted spice model. While I read in some forums that Orcad 15.7 and newer can easily handle encrypted models, I still have problem with it in Orcad 16.6! Could anybody please tell me what I'm doing wrong? or is there any...
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