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Hi all,
I have requirement for a display PCBA, It has some 7-seg LEDs display (used for home appliance).
I met a problem: after a certain time, one or several segments were broken and no light. (error rate about 0.5%)
To solve this trouble, our supplier (an IDH) who designed my PCBA said he must...
I have a bit curious, why do you need to block DC on IF line ?
IF line in satellite receiver is on feeder, right? which repair method do you apply without DC voltage ?
If you want to implement an idea from a-z, you have to research theory, reference design first.
I guess you chose dspic because you saw it on a particular board on your hand. This is a big problem for approach solution. Because your keyword is "dspic30f", it is not keyword for your idea.
You...
Re: questions about PA simulation in ADS
I have used ADS before and I don't use it right now. Sorry for I can't help you.
So I have an idea, why don't you upload your project come here ?
Follow your pictures, perhaps some information has been hidden and other cannot re-build your circuit.
Your...
what does the rule you want to apply in your system ?
This document offer 2 methods for choosing pre-amp: prioritize sensitivity or dynamic range.
If your receiver near transmitters, ( including noise from other transmitter) the signal input too strong, it can make your receiver saturation and...
I agree with idea it represents fuse.
There are 2 "tuning traces" , but in my board, it has only one is connected to MOV, the other is "waited" for other options.
In case designer want to increase current through circuit, he will solder the terminal of 2 traces, than, 2 traces are parallel...
Hi Guys,
When I disassemble a machine "made in China", it has a AC/DC module low-power ( I guess it's 12V/1A output).
I observe these design and discover something weird. It has (look like) the tuning traces and serial with MOV. MOV'name is "vdr 10d561k"
As in my picture below.
It is connected...
I tried to search on Google with key word "usb c power delivery ic".
There is many result from many brand :ST, Microchip, TI..
so, what is the special in your requirement ?
thank all.
I don't need a flat gain amplifier because I'll use an auto lever control circuit in my design.
but can you suggest me some FETs can to use?
hi all.
i need design a rf broadband amplifier 50w, input power 0dBm, frequency 0.5-2.5GHz
what is solution can i apply in my design ?
(ex: type of amplifier, component to use..)
note: because some reasions, i don't wanna use the balance amplifier...
thanks!
sorry for long time I don't reply because I havn't time.
my problem is in the power supply. I have a capacitor 47uF close PS but too far with IC. If I add a capacitor close vcc pin, the sensitivity is very well.
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