febb's Profile


Username	febb
Name	Alex Feb
Member Since	May 14, 2013

febb's Public Circuits:

Now showing circuits 1-20 of 87. Sort by

	Clock LED Backup PUBLIC NiMH battery backup for LEDs and wall clock by febb \| updated May 19, 2018
	AC current indicator PUBLIC by febb \| updated May 06, 2018
	Very Simple Crystal Oscillator PUBLIC by febb \| updated April 11, 2018
	Heater Fan 1 control V2 PUBLIC Added uController to control FAN heater by febb \| updated April 11, 2018
	Minimal UC3845 Power Supply PUBLIC Try to design minimum components UC3845 switch mode power supply by febb \| updated February 03, 2018
	IR2153 regulated power supply PUBLIC Frequency controlled IR2153 oscillator allows to build very effective half-bridge regulated switch mode power supply. by febb \| updated December 08, 2017
	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 PUBLIC Simple Nixie tubes about 170V power supply by febb \| updated October 17, 2017
	UC3843 SEPIC converter PUBLIC Simple DC-DC converter SEPIC topology by febb \| updated August 26, 2017
	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 PUBLIC by febb \| updated August 25, 2017
	34063 stepdown drives BJT NPN PUBLIC by febb \| updated August 16, 2017
	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 PUBLIC by febb \| updated August 14, 2017
	UC3845 stepdown drives N-MOSFET PUBLIC by febb \| updated August 06, 2017
	34063 Stepdown test PUBLIC by febb \| updated August 05, 2017
	Flashlight Test1 PUBLIC by febb \| updated July 15, 2017
	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 PUBLIC Cheap OP Amp as a simple balancer for charging battery packs by febb \| updated June 09, 2017
	Vacuum battery charger PUBLIC Current limiter for charging vacuum cleaner 13 NiMH cells battery pack. by febb \| updated May 29, 2017

	Clock LED Backup PUBLIC NiMH battery backup for LEDs and wall clock by febb \| updated May 19, 2018
	AC current indicator PUBLIC by febb \| updated May 06, 2018
	Very Simple Crystal Oscillator PUBLIC by febb \| updated April 11, 2018
	Heater Fan 1 control V2 PUBLIC Added uController to control FAN heater by febb \| updated April 11, 2018
	Minimal UC3845 Power Supply PUBLIC Try to design minimum components UC3845 switch mode power supply by febb \| updated February 03, 2018
	IR2153 regulated power supply PUBLIC Frequency controlled IR2153 oscillator allows to build very effective half-bridge regulated switch mode power supply. by febb \| updated December 08, 2017
	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 PUBLIC Simple Nixie tubes about 170V power supply by febb \| updated October 17, 2017
	UC3843 SEPIC converter PUBLIC Simple DC-DC converter SEPIC topology by febb \| updated August 26, 2017
	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 PUBLIC by febb \| updated August 25, 2017
	34063 stepdown drives BJT NPN PUBLIC by febb \| updated August 16, 2017
	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 PUBLIC by febb \| updated August 14, 2017
	UC3845 stepdown drives N-MOSFET PUBLIC by febb \| updated August 06, 2017
	34063 Stepdown test PUBLIC by febb \| updated August 05, 2017
	Flashlight Test1 PUBLIC by febb \| updated July 15, 2017
	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 PUBLIC Cheap OP Amp as a simple balancer for charging battery packs by febb \| updated June 09, 2017
	Vacuum battery charger PUBLIC Current limiter for charging vacuum cleaner 13 NiMH cells battery pack. by febb \| updated May 29, 2017

febb's Public Circuits:

Clock LED Backup PUBLIC

AC current indicator PUBLIC

Very Simple Crystal Oscillator PUBLIC

Heater Fan 1 control V2 PUBLIC

Minimal UC3845 Power Supply PUBLIC

IR2153 regulated power supply PUBLIC

Voltage control with hysteresis PUBLIC

Nixie tubes voltage supply PUBLIC

UC3843 SEPIC converter PUBLIC

34063 Car Charger improvement PUBLIC

UC3843 stepdown with transformer PUBLIC

34063 stepdown drives BJT NPN PUBLIC

34063 DC-DC Stepdown drives N-MOSFET PUBLIC

UC3843 stepdown drives BJT NPN PUBLIC

UC3845 stepdown drives N-MOSFET PUBLIC

34063 Stepdown test PUBLIC

Flashlight Test1 PUBLIC

Soldering station PUBLIC

Li Ion Load Balanced charger PUBLIC

Vacuum battery charger PUBLIC