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UCC28083 switch mode power supply design
Hi guys, Please have a look at the schematic attached. I cannot understand why on earth the UCC28083 is blowing up. The moment I power up the 110V DC input side as well as the...
Thursday, 15 January 2015 - 03:17
Eagle copper track with solder mask...
So I have this wide coper track I want to be able to put solder on it to help carry more current. How do I prepare a track on eagle so that silk screen is not put on it during...
Wednesday, 7 January 2015 - 09:58
Sensorless BLDC using comparator...
Ok so I had previously done senseless bldc control using adc reading of bemf signals for the 3 phases. It has worked fine. My PWM frequency is 100kHz. Yes it is fast. I can reach...
Sunday, 14 December 2014 - 02:30
Antenna for light...
Today I had this wild idea ... What if we could make lots of micro antennas for capturing light? After all light is electromagnet. So lets imagine...you are able to make nano...
Friday, 22 August 2014 - 09:54
FAT32 getting corrupted with UC3A1256
So I have my own fat32 library... it works fine days after days...but if I keep pulling the power plug out of the board, at some point the file system will get corrupted....all my...
Monday, 18 August 2014 - 11:13
Charge pump 5V to 12V... as power source for sensors.
Ok I have a pressure sensor that is a 4-20mA type and requires a suppy of 10-30VDC. I have 5VDC 100mA power source. I am thinking of using a charge pump 5 to 12 type MAX662A or...
Monday, 18 August 2014 - 02:54
USB CDC host DMA is dropping first 64 byte packet.
Guys I have posted here https://www.avrfreaks.net/index.p... But no one seems to have a say there? :cry:
Monday, 21 July 2014 - 22:07
USB CDC host mode drops packet...
Gaahhh! Very frustrated...I have discovered that this UC3A1256 I am using drops data packet every now and then. I am using it to talk to a 3G usb dongle. Everything is fine no...
Saturday, 19 July 2014 - 11:16
3G/4G USB dongles
Hi All...So I had almost perfected my USB CDC host code on UC3A series chips. I coded the PPP protocol. And now I have finally coded the RNDIS protocol for dongles that dont have...
Tuesday, 15 July 2014 - 02:01
RAM usage in compilation using AtmelStudio
Hmm..so I am compiling just a int main(void) for UC3A1256 without including any of the ASF libraries. I would have thought I would comsume no more than just a handful of text and...
Thursday, 19 June 2014 - 01:36
Calculation of Aggregates
I am wondering of various ways of doing this... if any of you can suggest good ways of doing this in C that would be good. Basically I have say temperature readsing coming through...
Thursday, 29 May 2014 - 05:25
printf using DMA?
Ok I have read the printf setup example in stdio.h for avrs and the likes (xmega). I am using xmega and have a function which sends strings using dma. It is called like...
Wednesday, 28 May 2014 - 01:05

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