79L12 datasheet, 79L12 pdf, 79L12 data sheet, datasheet, data sheet, pdf, Wing Shing Computer Components, Negative-Voltage Regulators. Changed layout of National Data Sheet to TI format. 79L LM79L12ACZ/ NOPB. ACTIVE. TO LP. 3. Green (RoHS. & no Sb/Br). CU SN. N / A for . 79L12 Datasheet, 79L12 PDF, 79L12 Data sheet, 79L12 manual, 79L12 pdf, 79L12, datenblatt, Electronics 79L12, alldatasheet, free, datasheet, Datasheets.

Author: Taulabar Zubar
Country: Lithuania
Language: English (Spanish)
Genre: Sex
Published (Last): 23 November 2013
Pages: 15
PDF File Size: 12.55 Mb
ePub File Size: 7.67 Mb
ISBN: 898-3-57694-734-7
Downloads: 14742
Price: Free* [*Free Regsitration Required]
Uploader: Mezikasa

Component view Printed circuit boards Board is designed single-sided. Read the data sheet. I cannot be sure but over-driving at maybe 37 or 38 volts is a good reason you destroyed it. Well there’s your basic problem – the absolute maximum input voltage you can put on a is 35 volts – if you have 36 volts on the output then you’ll likely have even more on the input side. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

I built stereo width controller and i required simple dual power supply for him.

Dual power supply

Output voltages are connected to 3 pin connector. Transformer in this package create a lot of manufacturers. So you are telling me that the regulator is just passing the voltage though because it is over volted? Circuit has on the datasneet side only fuse.


The power supply output will be isolated, so can float arbitrarily. Olin Lathrop k dahasheet Next we continue with connectors, transformer and big capacitors. Is there any common household objects that have a or equivalent that someone may know about?

Dual power supply

When we use LEDs with a small current 2mA that we can use bigger resistors about 1k5. You should strongly consider using a much smaller input voltage like 18V too. You didn’t post your circuit.

The users who voted to close gave this specific reason: On the secondary side of transformer are connected two fuses mA and after them is bridge rectifier. D1 is a 13V 1W Zener and could be made up from some combination of zeners in series.

Surplus and obsolete components – Voltage regulators

That’s a negative regulator. We can connect power cord directly to the X1 connector or via power switch on the chassis. We can also use 2 pin connectors for LED connecting.

Now bridge rectify these two secondaries individually and then use two to create regulated and isolated two 12V supplies. I have a few 2n transistors laying around would that work?

If your negative regulator is blown and you need a quick fix, replace the 97l12 thing with a off the shelf 12 V power supply. Circuit description Circuit has on the primary side only fuse. We assemble parts from a smaller to bigger. Your problem solved without need to have the Connect collector datssheet negative input supply. If this is just for a short demo, then you may be able to use a few batteries. I ordered it at small local company Kohout Spoj.


Series diodes drops 0.

Next are small filter capacitors and also signaling LEDs connected via resistors. If voltage on the big capacitors will be under And for a quick fix just so it works tomorrow this might work correct? I Just feel guilty doing that for all they judges know who I am presenting to I could just Put a in there and say look it works and stuck a dataxheet of wires in there and they would be beyond impressed: I went to radio shack and they did not have any regulators. For signaling of presence of voltage is enough only one LED.

PDF format Eagle6 format. It allow to create it in a amateur conditions. First we check if all holes are correctly drilled. Beware of polarity of electrolytic capacitors and orientation of diodes and regulators. Next are positive and negative voltage regulators 78L12 and 79L12 with decoupling capacitors C3 to C6 close to regulators. It doesn’t matter on the 79k12 order.