DBL datasheet DBL component DBL integrated circuit DBL schematic DBL application note BL L DBL33 DBL3 DBL. See general marking information in the device marking section on page 8 of this data sheet. DEVICE MARKING INFORMATION TSSOP− DBL Datasheet: Quad voltage comparator, DBL PDF Download Daewoo Semiconductor, DBL Datasheet PDF, Pinouts, Data Sheet, Equivalent.

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Output of 2 nd comparator. That snoring sound occurs at the lowest duty-cycle setting of your potentiometer and at normal conditions, it is usually faint. Search Forums Recent Posts.

(PDF) DBL339 Datasheet download

ATX supplies do have a separate ferrite transformer powering the regulator microchip, in this case. This was the third ATX internal variable voltage supply. Output of 4 th comparator. Wow, you are game — pulling off transformers, rewinding them and all the work associated with that and then replacing them, along with all dwtasheet that could be affected!

DBL датащи, Datasheet – датащи поискавая

First I get some strange noise inside supply then when I connect bulb 5W supply shut down. Here is one schematic with SG that might help in further experiments with this sort of supplies. I have dbp339 your text step by step and all I get is 15V without option of small value of 15V.

Thanks a lot for the useful information! Interface SD Card with Arduino.

DBL Datasheet(PDF) – Daewoo Semiconductor

What I did to bypass WT chip: Meh, trying my best to explain, hope you understand! Where did you get an extra 12v line in your prototype? I have a similar atx like you,tl and LM Had to disconnect the protection circuit though. But it gets better even, when you connect 3. Only interested in say 7. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Yes, use a trimmer instead of a potentiometer, then set its resistance so the supply runs on 18 catasheet.


The large transformer has a center tapped primary winding. When You repair it i can say the tuning method from Non-inverting input of 3 rd comparator. Could you please check the datasheet of this IC and telling me which pin should I desolder to proceed? I have a question.

Modding a range hood fan. It looks like a short circuit protection turns it off. Thank you for explanations in this forum, they helped me greatly.

Dataeheet for the resistors, well, classic 0. If you rewire the transformer binding post to power just one set of these windings. First of all, thanks for posting this great idea.

Can I do that? But, now the former yellow ebl339 is variable, so I need an extra fixed 12v output to power the fan and the Voltmeter. Can this conversion be accomplished with this particular supply. No, using the V will not work, you must use ground.

Has anyone tried this conversion??? It seem the have two ferrite transformers. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. These parts are run of the mill, i.


The main chip is a DBL, so all went fine. Came out of Cooler Master tower. Xbl339 27, They had use only a 50k pot mount on pararel on 12v rezistor feedback. What You need for output? This site uses cookies to help personalise content, tailor your experience adtasheet to keep you logged in if you register.

I relocated the grounding resistor to ground the feedback circuits. Maybe you managed to find the solution? If it fails to turn on, proceed with step 4. As written in the article above, this tutorial covers only halfbridge TLdriven supplies. I had to, because otherwise the two psu would have had the same ground.

High quality DF13-10P-1.25DS(50) DBL339 D78C11CW694 IC In Stock

Just needed to solder out two resistors R15 and R16 which originally went to the rails from pin 1, then soldered a long jumper wire originally for plug-in breadboards to the pad of R16 which had a PCB trace connection with pin 1. On a sidenote, have you submitted your project to hackaday and instructables? Its designed to provide PSU protection, power good output and protection detection. I ve tried some mods, with adding some resistors between the 5V and 12 Volts, but they all didnt work.