Categories

Posts Tagged ‘battery charger’

Capacitive battery charger

Tuesday, April 26th, 2016

Marcus Jenkins made a capacitive battery charger using Dirty Board PCB's to revive rechargeable batteries: This is really a basic, bare-bones circuit. I’ve prepared the PCB with a view that it could be used as a module in a rather more-sophisticated charging system. You could imagine using a microcontroller (e.g....

Tags: ,
Posted in DirtyPCBs.com | 3 Comments »

LiFePO4 charger

Tuesday, October 6th, 2015

Markus Gritsch shared his LiFePO4 charger project in the forum: Since I really like using LiFePO4 AA and AAA batteries in some of my projects, I finally gave in and built a dedicated charger for them. Previously I used a lab power supply to mimic the constant current/constant voltage charging curve, which...

Tags: ,
Posted in project logs | 12 Comments »

App note: Get a constant +5V output by switching between a +5V input and a single-cell LI+ rechargeable cell

Sunday, August 23rd, 2015

App note from Maxim Integrated on providing smooth power from two sources. Link here (PDF) Design provides a simple method for maintaining an uninterrupted +5V even while switching between the external +5V supply and a rechargeable single-cell Li+ battery.

Tags: , ,
Posted in app notes | No Comments »

LiTiny- A Tiny LiIon charger for most things battery

Wednesday, July 1st, 2015

Rohit Gupta made this LiTiny project, a tiny LiIon charger: In the end I had a LiIon charger capable of charging batteries @700mA restricted due to thermal dissipation limits of home made PCBs. Project details at Rohit's blog.

Tags: ,
Posted in DIY | 1 Comment »

3.7V Li-Ion battery charger circuit

Monday, March 2nd, 2015

From the comments on our earlier standalone Linear Li-Ion battery charger with thermal regulation in ThinSOT app note post, Jan writes: Nice chip, indeed. Unfortunately not easy to find stocked – here I can get it only from Farnell (5 euro + VAT a pop) or Digikey ($3/pc + VAT +...

Tags: , ,
Posted in power supply | 6 Comments »

Simple automatic car battery charger

Wednesday, November 26th, 2014

Dilshan Jayakody has published a new build, an automatic car battery charger: This is modified version of commonly available automatic car battery charger system. I obtain original layout of this charger from one of the commercially available Chinese car battery charger and modified some of the sections of original schematic to...

Tags: ,
Posted in hacks | No Comments »

Lithium iron phosphate (LIFePO4) battery charger

Thursday, February 7th, 2013

After two DIY Li Ion chargers this week (first, second), here is a lithium iron phosphate (LIFePO4) battery charger. These batteries are a safer cousin to the standard Li-Ion batteries, but sacrifice some of it's energy density for the safety. The charger above is designed around the PIC12F510 microcontroller which...

Tags: , ,
Posted in Lithium Ion | 3 Comments »

£1 Lithium Ion battery charger

Wednesday, February 6th, 2013

Here's another custom Li Ion battery charger and holder. Yesterday we ran a post involving a custom battery holder for cell phone batteries, today it's a holder for a more conventional 18650 type Li Ion batteries. To make a battery charger, just solder the red and black leads to the...

Tags: ,
Posted in DIY, Lithium Ion | 20 Comments »

Open source DIY friendly Li Ion battery charger

Monday, February 4th, 2013

Miceuz designed 2 open source single sided boards for Li Ion battery chargers. He used the MAX1555 and MCP73831 ICs as the charging controller, power is provided through USB. We especially like his battery holder rig. For a long time I wanted to enter the 21st century by stopping using...

Tags: , , ,
Posted in DIY, Lithium Ion | 2 Comments »

App note: SMBus-programmable battery chargers

Saturday, May 14th, 2011

rsdio writes:  SMBus is similar to I2C, and should therefore be easily connected to most PIC or AVR projects. Highly integrated, 850kHz/500kHz SMBus-programmable battery chargers: MAX17435/MAX17535, highly integrated SMBus™ battery chargers capable of operating at 850kHz and 500kHz, respectively. Unlike competitive solutions, MAX17435/MAX17436 allow the charge setting to be programmed...

Tags: , ,
Posted in app notes | 1 Comment »

Recent Comments

  • erich: For anyone interested, I've added some c++ code for adaptive huffman decoding in the git repository.
  • Sjaak: I would add some more protection in the used trigger file (on the serverpilot site) then not using a standard name :) hopefully they use...
  • Pete Castagna: My friend Charlie who worked in synthesizers at a DOD type of place made a modification to this avalanche pulse generator that allowed him to...
  • Sam Catchpole: Yes please :D
  • Giovambattista Matera: another try