febb's Profile

Battery Desulfator - Doubler PUBLIC

by febb | updated September 06, 2015

Heater Control - 2 PUBLIC

by febb | updated June 21, 2015

Conect Motor to Microcontroller PUBLIC

by febb | updated June 16, 2015

Charger PSU PUBLIC

by febb | updated May 21, 2015

12V fan thermostat PUBLIC

Using transistor as thermistor to control 80mm cooling fan speed.

by febb | updated May 01, 2015

Power LEDs - test1 PUBLIC

by febb | updated May 01, 2015

DC converters drivers PUBLIC

by febb | updated April 27, 2015

Battery Backup 2 PUBLIC

by febb | updated April 06, 2015

Battery Backup PUBLIC

by febb | updated April 06, 2015

Mosfet Flip-Flop for LED PUBLIC

Push button switch for LED using driving mosfet.

by febb | updated April 01, 2015

Stepup DC Converter 9V PUBLIC

by febb | updated February 15, 2015

AC-DC resistive power supply PUBLIC

Small power AC to DC nonisolated converter.

by febb | updated December 24, 2014

ac-to-dc   power-supply  

Li-Ion battery charger PUBLIC

Li-Ion battery charger using switch mode regulator

by febb | updated December 24, 2014

battery-charger   li-ion-charger  

LED driver from AC PUBLIC

by febb | updated December 02, 2014

Clock backup PUBLIC

Boost voltage converter to backup MAGNAVOX MCR140 Clock from 1 AA NiMH battery to 9V and battery charger.

by febb | updated November 04, 2014

9V boost converter from AAA battery PUBLIC

Simplistic discrete boost converter to get 9V out of single AA/AAA battery based on "joule thief" oscillator. Current sensor shutdowns circuit when no load. Idle current less then 1 uA!

by febb | updated November 04, 2014

Charger PUBLIC

by febb | updated November 04, 2014

AC power latch switch with thyristor PUBLIC

by febb | updated November 04, 2014

AA battery booster with MOSFET PUBLIC

by febb | updated November 02, 2014

Display segments driver PUBLIC

Save 1 MCU pin when driving 3 digits display using 2 pins.

by febb | updated September 30, 2014