TL are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for TL description/ordering information. The TL is an adjustable three-terminal high- voltage regulator with an output range of. V to V and a DMOS output. TL regulator is one of the favorite regulators I like apart from the usual LM family members. This fits into our topic of today – inexpensive, small size.

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My last post is pending because I included a link I guess.

There are ways to use TRIACs a type of thyristor as a pre-regulator to get the voltage on the filter cap within range of a linear regulator; I don’t happen to have a schematic for one at the voltage you’re talking about. Menu Search through millions of questions and answers User. Is the output voltage stable at 48V? Oct 18, 6. Jun 15, No doubt other variants could be sonically superior but these do provide a good alternative for cost, size and simplicity reasons.

This circuit should work, but it is untested. What do you think of this post?

82v 2a-3a power supply using tl | All About Circuits

Can anyone advise me on my drawing if it looks good? Oct 17, 2. Your name or email address: Thanks for the thought out reply. Instead this diode will only conduct when you turn the input voltage off so as to discharge the output capacitor, protecting the regulator from reverse conduction. Oct 23, Turning the potentiometer would get us the voltage needed.

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In reply to Ron Michallick:. Post as a guest Name.

82v 2a-3a power supply using tl783

Then click on the link if you want to upload up to 3 more images. The above shows the schematic for making the TL as a voltage regulator. Here is a current limited, voltage adjustable power supply I made in LTspice. Anyways, thanks for the help.

Do you have a plan for getting rid of all that heat? Trademarks Privacy Policy Terms of Use. This way I could use a much smaller transformer but still retain the safety benefits of a having a transformer.

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I’m looking for reliability at 2a-3a of power. Should be rolling at 40mph! Since most people scan Web pages, include your best thoughts in your first paragraph. Do you have the same thoughts? Tom Carpenter 37k 2 65 All information supplied by Kontera. Mentions Tags More Cancel. This will give you a mostly DC voltage with a little bit of ripple to feed the transistors.

TI assumes no liability for applications assistance or customer product design. PDF THermal resistance junction to case is 1. Oct 18, 8.

Hot TL – is the diode shorting the regulator? – Electrical Engineering Stack Exchange

Because Vi is always higher than Vo, the diode doesn’t conduct because it is reverse biased notice that the cathode is to Vi. Customer is fully responsible for all design decisions and engineering with regard to its products, including decisions relating to application of TI products. If you have a related tl873, please click the ” Ask a related question ” button in the top right corner.

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It seems to work. But that’s something to look at. The capacitance can be reduced significantly compared to not using any active voltage regulation. Jan, This circuit should work, but it is untested. On ttl783 top I’m using a meanwell switching supply to limit current and fine tune the output. It was fun, but I’m afraid you’re tl738. Hi, i would like to use the TL in an high voltage application as current sourcing regulator with more than its 0.

That means the output voltage will always be lower than the input voltage.

Datasheet for the BUH You ttl783 preview and edit on the next page. If you have further questions related to this thread, you may click “Ask a related question” below. Use of the information on this site may require a license from a third party, or a license from TI.

The issues with running multiple voltage follower transistors doesn’t seem that big, nor does current limiting. I’m not looking for efficiency. Upload Pictures or Graphics optional [? Linear regulators work by varying the resistance of a pass transistor, turning any excess voltage in to heat.