Power supply - Circuitos electrónicos

This supply uses no heavy step down transformer and has an extremely low parts count. The circuit can be built very small and can supply small currents for small projects. The major downfall of this supply is that it is not isolated from the AC line and can only supply small currents.

Circuitos electrónicos

http://www.circuit-diagrams.com/dg4-Transformerless-Power-Supply.php

Simple +5V power supply/regulator circuit for powering digital ICs.

Circuitos electrónicos

http://www.epanorama.net/circuits/psu_5v.html

wikiHow article about How to Convert a Computer ATX Power Supply to a Lab Power Supply.

Circuitos electrónicos

http://wiki.ehow.com/Convert-a-Computer-ATX-Power-Supply-to-a-Lab-Power-Supply

This circuits was used to provide battery backup to a device that had an AC (output) wall transformer.  Due to the quaise-sine-wave output and imprecise 60Hz output frequency, some devices might not work properly.  Peak output is the DC input voltage minus about 20 ohms drop.  Use bigger output MOSFETs for more current outputDiscovercircuits.com is your portal to free electronic circuits links. Copying content to your website is strickly prohibited!!!.......

Circuitos electrónicos

http://www.discovercircuits.com/Andy/300mA_DC_to_AC_Converter.htm

Alarm Power Supply

Circuitos electrónicos

http://english.cxem.net/power/power55.php

5, 000W ultra-light, high-power amplifier, without switching-mode power supply

Circuitos electrónicos

http://iq-technologies.net/projects/audio/043

Circuitos electrónicos

http://aaroncake.net/circuits/lasersup.asp

Circuitos electrónicos

http://www.aaroncake.net/circuits/supply.asp

Circuitos electrónicos

https://fastdiagram.blogspot.com/2014/11/power-supply-failure-alarm.html

Circuitos electrónicos

http://www.electronics-circuits.com/cirdir/tools/dmm/del20010.html

This circuits was used to provide battery backup to a device that had an AC (output) wall transformer. Due to the quaise-sine-wave output and imprecise 60Hz output frequency, some devices might not work properly. Peak output is the DC input voltage minus about 20 ohms drop. Use bigger output MOSFETs for more current outputDiscovercircuits.com is your portal to free electronic circuits links........

Circuitos electrónicos

http://discovercircuits.com/Andy/300mA_DC_to_AC_Converter.htm

Circuitos electrónicos

http://schematics.dapj.com/2004/10/isolated-dual-power-supply_28.html

Circuitos electrónicos

http://users.otenet.gr/%7Eathsam/power_supply_30.htm

Circuitos electrónicos

http://www.delabs-circuits.com/cirdir/micro/mcs-48/98spct30.pdf

Circuitos electrónicos

http://8085projects.info/active-servo-power-supply-circuit-using-7815-7818-and-7915.html