febb's Profile

LED night light PUBLIC

by febb | updated June 02, 2020

Heater Safety PUBLIC

by febb | updated May 09, 2020

12V LED Light with OP AMP PUBLIC

by febb | updated April 18, 2020

Async Fan Motor PUBLIC

by febb | updated February 24, 2020

34063 booster current control USB light PUBLIC

by febb | updated February 03, 2020

USB Light Test PUBLIC

by febb | updated December 30, 2019

Simple regulated USB LED light PUBLIC

Simple 2 transistors regulated switch mode boost USB LED light

by febb | updated December 28, 2019

Clock LED Backup PUBLIC

NiMH battery backup for LEDs and wall clock

by febb | updated December 16, 2019

1.5V Power supply for clock PUBLIC

1.5V Power supply for clock with 30 min backup capacitors.

by febb | updated November 23, 2019

Optocoupler oscillator - tester PUBLIC

Simple Optocoupler oscillator - tester

by febb | updated October 27, 2019

Simple LED FlashLight driver PUBLIC

by febb | updated August 10, 2019

Multimeter power supply from NiMH cell PUBLIC

by febb | updated May 25, 2019

Cuk converter for smooth negative rail PUBLIC

Simple Cuk converter for smooth negative rail

by febb | updated May 23, 2019

Rechargable Battery Tester PUBLIC

by febb | updated May 20, 2019

Rechargable Battery Leakage Tester PUBLIC

by febb | updated May 19, 2019

UC3845 Cuk converter PUBLIC

by febb | updated May 05, 2019

Cuk converter - car USB charger PUBLIC

by febb | updated May 04, 2019

Cuk Converter for portable radios powered from Ni-MH battery PUBLIC

Efficient low EMI DC-DC converter Cuk topology to power portable radios from Ni-MH battery

by febb | updated April 28, 2019

Cuk Converter for portable radios PUBLIC

Efficient low EMI DC-DC converter Cuk topology to power portable radios from Li-Ion (18650) battery

by febb | updated April 21, 2019

34063 DC-DC Step down drives N-MOSFET PUBLIC

Legacy MC34063 chip drives power N-MOSFET in DC-DC Step Down converter. Minimum components.

by febb | updated April 15, 2019