P1 is set to choose the utmost variety inside the benefit that’s marked or identified by the resistor R4.

I have current the initial diagram during the post, tested via the elektor Digital engineers, for your reference and for analysis by all other visitors….

hi Swagatam, many thanks for replying!! I could not make it Focus on the breadboard so i solder it to some pcb as well as the voltage regulation got fixed (likely i linked a thing the wrong way) but i nevertheless can´t control current!

The inclusion of D1 makes it confident the voltage may be reduced appropriate down to 0.six volts, which occurs to become the forward voltage fall on the diode.

In the initial circuit earlier mentioned, how can the output voltage remain steady(i.e. without the need of alteration) as The present is becoming modified and vice versa. Let’s say I established the voltage to 13v and after that alter The existing to 2amps Together with the voltage remaining 13v in the method.

many thanks heaps for your personal fast reply, and i was only meaning to utilize the mosfets in combination with T1, i was a tad hazy on no matter whether use the superior present BJT I discussed in the first hyperlink for T1, T2, and T3 or if the BC547B you specified will still get the job done for T2 and T3.

the worth of R4 is especially will become answerable for defining the maximum allowable output recent.

I did. I put awesome, Unwanted fat 10 watt resistor for R2 and it works good. are unable to say the same concerning the electrical power provide, nevertheless. I feel I now The solution to this thriller. The reason why yours performs so properly is as you has to be using high resistance hundreds. Relatively substantial, that may be. If, as an example, my load is 600 Ohms then the circuit works fantastically.

hi sir, as i continue on developing the unit I discovered some lacking worth. what is the resistor in The bottom or T3 linked to the center leg of P1? could that be similar to R8?

I will test to explain you. The transistor T1 is configured being an emitter follower, which means that its collector voltage is going to be normally equal to it base voltage minus 0.6V. Now, The bottom voltage of T1 is controlled by T2, so at any offered instant, based on the setting of P2, the T2 will try and Slash off the base voltage of T1. For example, if suppose P2 is altered such that after the collector voltage of T1 reaches 9V, T2 is switched ON. Because of this at 9V T2 will activate. When T2 switches ON at 9V, T1 foundation is going to be Slash off at 9V.

Hi Suat, In accordance with me, the best option is making use of an LM338 IC for producing the expected variable ability provide. You should use a significant heatsink on it and easily cost a sixty Ah battery at four amp fee from your transformer.

Suppose We have now an input voltage of 5v. It can either be 5v or 0. Now whether it is switched on and off with really high frequency, we have a square waveform.

A DC Voltage Regulator is a device which maintains the output voltage of a normal electrical power source constant regardless of load variations or modifications in enter a.c. voltage .

pricey Imsa, only one TIP36 mounted on a good heating will do The work, no How to make a dc voltage regulator 0-50v at home troubles! three collectively will not likely perform effectively!