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i am just learning things here, i found this circuit diagram and wanted to know what it does. that is i don't have any aim to build it for anything/projects like that just to know what is it. the capacitor value i just used randomly without knowing how to actually calculate it.
unregulated DC to regulated DC converter? how to make unregulated dc supply input signal to check this circuit, i need some example of unregulated dc supply. also how to calculate the capacitor value?
added:
1. this part of the circuit comes after the transformer, diode ring and capacitor...
so you did not read my 1st post? I'm sorry if you cannot understand simple diagram that has been posted, let alone the problem described in words.
I tried your solution 3 4 times but now I know why it was not working.
Turns out the correct way to use the transistor is as follows.(hinted by the...
I got the circuit drawing from here:https://www.nutsvolts.com/magazine/article/bipolar_transistor_cookbook_part_1
and it says the output is 0V to 5V for input -2.5V and 2.5V which seems not be the case....am i right?
I tried the following circuit simulation in Proteus where transistor is used clamp the input voltage -2.5V to 2.5V to 0V to 5V but I am not getting the expected output voltage as shown in the graph. Why is it not working and how do I choose the capacitor and resistor values?
I think you can do this with Node-Red, XAMPP server, MySQL database and either ESP32, ESP8266 or Wemos D1 mini. Below is an example tutorial that shows how to do it with Arduino and NodeRed+XAMPP+MySQL.
Read and Store Sensor Data into Database with Node Red
And you can you can easily...
I have square wave coming out of arduino and used RC filter to convert square wave to sine wave. But the sine wave out of the filter is shifted in amplitude with 2.5V center high peak at around 2.75V and low oeak at 2.25V as shown in the graph.
1) How to make the filter sine wave output...
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