Username febb
Name Alex Feb
Member Since May 14, 2013

febb's Public Circuits:

Now showing circuits 1-20 of 82. Sort by

IR2153 regulated power supply

IR2153 regulated power supply PUBLIC

Frequency controlled IR2153 oscillator allows to build very effective half-bridge regulated switch mode power supply.

by febb | updated 3 days, 10 hours ago

Voltage control with hysteresis

Voltage control with hysteresis PUBLIC

Simple control loop for IR2153 based switch mode power supply. Hysteresis is needed to turn completely ON and OFF IC oscillator. I could not find better way.

by febb | updated December 04, 2017

Nixie tubes voltage supply

Nixie tubes voltage supply PUBLIC

Simple Nixie tubes about 170V power supply

by febb | updated October 17, 2017

UC3843 SEPIC converter

UC3843 SEPIC converter PUBLIC

Simple DC-DC converter SEPIC topology

by febb | updated August 26, 2017

34063 Car Charger improvement

34063 Car Charger improvement PUBLIC

Adding simple diode D2 in switch collector circuit helps to reduce by 50% chip power dissipation and to increase substantially output current.

by febb | updated August 26, 2017

UC3843 stepdown with transformer

UC3843 stepdown with transformer PUBLIC

by febb | updated August 25, 2017

34063 stepdown drives BJT NPN

34063 stepdown drives BJT NPN PUBLIC

by febb | updated August 16, 2017

34063 DC-DC Stepdown drives N-MOSFET

34063 DC-DC Stepdown drives N-MOSFET PUBLIC

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

by febb | updated August 15, 2017

UC3843 stepdown drives BJT NPN

UC3843 stepdown drives BJT NPN PUBLIC

by febb | updated August 14, 2017

UC3845 stepdown drives N-MOSFET

UC3845 stepdown drives N-MOSFET PUBLIC

by febb | updated August 06, 2017

34063 Stepdown test

34063 Stepdown test PUBLIC

by febb | updated August 05, 2017

Flashlight Test1

Flashlight Test1 PUBLIC

by febb | updated July 15, 2017

Soldering station

Soldering station PUBLIC

Simple regulated Soldering Iron station. Supports wide output range: 40-300V.

by febb | updated June 18, 2017

soldering-station  

Li Ion Load Balanced charger

Li Ion Load Balanced charger PUBLIC

Cheap OP Amp as a simple balancer for charging battery packs

by febb | updated June 09, 2017

Vacuum battery charger

Vacuum battery charger PUBLIC

Current limiter for charging vacuum cleaner 13 NiMH cells battery pack.

by febb | updated May 29, 2017

PSU with linear regulator 1

PSU with linear regulator 1 PUBLIC

Simple power supply with linear regulator and lowest voltage drop

by febb | updated April 06, 2017

OP AMP oscillator

OP AMP oscillator PUBLIC

Simple relaxation oscillator with OP AMP

by febb | updated March 27, 2017

Op Amp Latch & PWM Oscillator

Op Amp Latch & PWM Oscillator PUBLIC

2 state latch and square wave generator, using OP AMP.

by febb | updated March 27, 2017

Multimeter 9V power from NiMH battery

Multimeter 9V power from NiMH battery PUBLIC

Simple DC converter and charger to use NiMH battery with 9V multimeter. Auto shutdown current < 5 uA.

by febb | updated March 02, 2017

Low voltage DC booster with MOSFETs 2

Low voltage DC booster with MOSFETs 2 PUBLIC

Low voltage driver for power LED using MOSFETs from NiMH cell.

by febb | updated February 15, 2017