Flyback Electronic Circuits, page 1

Flyback Circuits, Page 1
Fly Back Circuits: #'s - D E - L N - Z
Last Updated on: Monday, October 03, 2011 06:07 PM

Circuits Designed by Dave Johnson, P.E. :

0.5v Negative Supply
Although not very efficient, this simple circuit, consisting of two LEDs and a photo diode, generates a negative voltage with a current level of a couple milliamps. It is ideal for supplying a negative rail to low power “rail to rail” op amp circuits, which need to have a true zero volts output. (added 12/04)

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

.4 watt 100% Radio Shack DC-DC Converter - This DC-DC converter ("inverter") needs nothing but unmodified Radio Shack parts. You don't need to build or wind any coils or transformers….....

0.5v Negative Supply - Although not very efficient, this simple circuit, consisting of two LEDs and a photo diode, generates a negative voltage with a current level of a couple milliamps. It is ideal for supplying a negative rail to low power “rail to rail” op amp circuits, which need to have a true zero volts output. (added 12/04) …. [Designed by David A. Johnson]

10-15w watt 100% Radio Shack DC-DC Converter - This DC-DC converter ("inverter") needs nothing but unmodified Radio Shack parts. You don't need to build or wind any coils or transformers.….....

12W AC-DC Flyback converter - Fully assembled and tested power supply with DC containing all design documentation Features: Universal AC line input, 0-1A Iout @ 12V, 84% efficiency at high line, Short Circuit protection, Over Voltage protection (added 3/05)

556 Timer-Based Flyback Transformer Driver - My 24kV high voltage "Jacob's Ladder" from DIY flyback transformer driver using 555 timer….(electronic circuit added 02/09)

60w Ac-DC Flyback Converter - Universal AC line input Fully assembled and tested power supply with DC containing all design documentation Features: 0-4A Iout @ 15V, 87% efficiency at high line, Short Circuit protection, Over Voltage protection (added 6/06)

90w Ac-DC Flyback Converter - Fully assembled and tested power supply with DC containing all design documentation Features: Universal AC line input, 0-6A Iout @ 15V, 83% efficiency at high line, Short Circuit protection, Over Voltage protection (added 6/06)

A doozy requiring some parts you can't get at the 'Shack. - You can make a doozy of a xenon strobe using the 12 volt DC in,….....

An Output Adjustable Flyback Converter - A high voltage step-up DC power supply using adjustable flyback conversion…. [Simon Oh, designer]

AN-4137/ Design Guidelines for Off-line Flyback Converters using FPS - Fairchild Application Notes / (app note added 6/06)

AN-4137SC/ Chinese Translation: Design Guidelines for Off-line Flyback Converters using FPS - Fairchild Application Notes / (app note added 6/06)

AN-4140/ Transformer Design Consideration for off-line Flyback Converters Using Fairchild Power Switch FPStm - Fairchild Application Notes / (app note added 6/06)

AN-4146/ Design Guidelines for Quasi-Resonant Converters Using FSCQ-series Fairchild Power Switch FPStm - Fairchild Application Notes / (app note added 6/06)

AN-4147/ Design Guidelines for RCD Snubber of Flyback - Fairchild Application Notes / (app note added 6/06)

AN-777: LM2577 Three Output, Isolated Flyback Regulator - National Semiconductor Application Note (app note added 2/06)

AN-H13: HV91 Series: Designing High-Performance Flyback - Supertex Semiconductors (app note added 2/06)

AN-H24: Expected Voltages & Waveforms - Supertex Semiconductors (app note added 6/06)

Chinese Translation: Design Guidelines for Off-line Flyback Converters using FPS/ AN-4137SC - Fairchild Application Notes / (app note added 6/06)

Doozy requiring some parts you can't get at the 'Shack. - You can make a doozy of a xenon strobe using the 12 volt DC in,….....

Fly Back Circuits: #'s - D E - L N - Z