DH0165 DATASHEET PDF

Change Language English. Product Catalog. Part Number: DH Worldway Part: DH Datasheet DH We are offering DH

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I was curious about the internals of the V AC phone chargers and I wanted to see if I could modify one to change the output voltage. So I did some investigating and this instructable will show what I found. Before we go any further, I have a few important points to cover..

There are high voltages involved in these devices that can be dangerous if handled improperly. I do not claim that the mods that I made for the AC charger in this instructable will work for other AC phone charger circuits. Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson. Before disassembly I measured the output voltage at 5.

I used a couple of screwdrivers to pry the case apart, but it was not easy to disassemble and I sort-of mangled it a bit so I'll probably need to find another project box to house it after completing the modification. I added a short AC line chord so I could power up the circuit on my test bench.

The key components to look for here are the controller chip and the feedback resistor. The controller chip in this case is a DH chip. Look up the data sheet online Google it. The feedback resistor R13 on the data sheet schematic is a 5k Ohm resistor.

As outlined in the previous step we need to replace the 5k feedback resistor R13 with a 2. As can be seen in the photos, the output voltage changes as expected from 5V to 3. Reply 5 years ago on Step 2. It is not shown on the example application circuit from the DH datasheet and Samsung does not publish a schematic for the actual TAD circuit so what I looked for in this circuit was 2 resistors in series between Vout and ground.

The point where these 2 resistors connect sets the feedback voltage. Reply 6 years ago on Introduction. By scd Follow. More by the author:. Add Teacher Note. Did you make this project? Share it with us! I Made It! Electronic Affirmation Mirror by bekathwia in Arduino. Reply Upvote. Gabse 6 years ago.

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Modifying the Output Voltage of an Adjustable AC-to-DC Converter (Phone Charger Hack)

I was curious about the internals of the V AC phone chargers and I wanted to see if I could modify one to change the output voltage. So I did some investigating and this instructable will show what I found. Before we go any further, I have a few important points to cover.. There are high voltages involved in these devices that can be dangerous if handled improperly. I do not claim that the mods that I made for the AC charger in this instructable will work for other AC phone charger circuits.

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DHE05M - High Efficiency Recovery Rectifiers

The FSDH is a monolithic. Included PWM controller features integrated fixed oscillator,. It has a basic platform well. Vstr 2.

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