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No, my posts can always be improved on. However, when an OP asks a specific question, in this case about how a current-limiter works, why did you feel it is necessary to inject a posting that had nothing to do with the question at hand? I dislike your disagreement with my critisism of your irrevelent posting....
I note@MikeMl has 'disliked' my post. It seems he believes his posts/circuits cannot be improved upon.
If a member asks for advice and is shown a circuit that has thermal failure staring it in the face with no mention of such issues, further advice is required to prevent poor results if such a circuit is attempted.
Such is the benefit of a forum. Now the OP has more than one POV on that sample circuit and that is to his benefit.
But what you didn't notice is that the regulator used by Willen in his original post is a LT1083, which is rated at 8A and a whopping 60W dissipation when bolted to an appropriate heatsink.You may think it is irrelevant, but your circuit would have led to further functional problems for the OP, thus I pointed that out.
Please note the TITLE of the thread. The OP is concerned with an LM317....I don't see u commenting on Tony's ref circuit to the LM317 as an issue...you are picking and choosing and its childish.But what you didn't notice is that the regulator used by Willen in his original post is a LT1083, which is rated at 8A and a whopping 60W dissipation when bolted to an appropriate heatsink.
Hi again,
I had seen some capacitor multiplier circuits where the base was regulated by zener and was used just 10uF capacitor and the transistor were passing supply from Collector to Emitter, smooth regulated output (same as with 4600uF). So it was called capacitor multiplier.
Same way cannot I use a small value capacitor in the ADJ pin or on its divider point to get more smooth supply with small filtering capacitor?
Bypass capacitors? Did you mean decouple capacitors? I thought that adding too many decouple capacitors makes the supply stable.It is oscillating. You have too many, and the wrong value bypass capacitors. I went back an looked up the current-booster recommended by National (ne TI) on the TI LM317 data sheet. They use nothing on the input pin, 10uF on the adjust pin, and nothing to 1uF on the output pin. That stops the oscillation.
I had downloaded a huge pack of zip file (approx 1.5MB) somewhere around internet. After extract, it become approx 15MB.hi Willen,
Ref your PM.
I had to use my LM317 and TIP32 models for your circuit, it runs equally fast with L1 in or out.
Where did you get the LM and TIP models from.?
Eric
hi,Equal fast, how long? My PC took more than 20 seconds when used the inductor. And took just a second when I connected directly (without the inductor).