transformer - Circuitos electrónicos


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Dave's Circuit #384 - Isolation TransformerDave's Circuit #384 - Isolation Transformer

A while back I needed to test a circuit at 240vac. Since I needed to safely test the circuit using my oscilloscope, I needed the 240vac to be fully isolated from the power line. So, to step up the voltage, I bought a small isolation transformer from Digikey. .

Circuitos electrónicos

http://www.discovercircuits.com/DJ-Circuits/isolation transformer.htm

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Flyback Transformer Driver

Flyback Transformer Driver, schematic

Circuitos electrónicos

http://iq-technologies.net/projects/misc/016

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Circuit - Classic Linear 5v Supply Using 6.3vac Transformer - Circuit #118 designed by David A. Johnson, P.E.

A classic method for producing a regulated +5v DC supply is shown below. This circuit consists of an iron core transformer, a bridge rectifier, a filter capacitor and a voltage regulator. Many people are tempted to use a very popular 6. 3v transformer for this +5v supply but they will often discover that there just isn’t enough voltage from the transformer to make . ........

Circuitos electrónicos

http://discovercircuits.com/DJ-Circuits/+5V Transformer.htm

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How to build Flyback Transformer Driver (circuit diagram)

Circuitos electrónicos

http://www.high-voltage-lab.com/117/flyback-transformer-driver

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5V transformer less power supply - Electronic Circuits and Diagram-Electronics Projects and Design

Circuitos electrónicos

http://www.circuitstoday.com/5v-transformer-less-power-supply

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Transformerless Power SupplyTransformerless Power Supply

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 Inverter 12V DC to 120V AC - Schematic DesignSimple Inverter 12V DC to 120V AC - Schematic Design

Simple inverter 12V DC to 120V AC circuit design. How much power this inverter can handle the load depends the transformer "Ampere" and transistors Q1, Q2

Circuitos electrónicos

http://circuitdiagram.net/inverter-12v-dc-to-120v-ac.html

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Search result for: 120 to 12 transformer :: High-Voltage-Lab.comSearch result for: 120 to 12 transformer :: High-Voltage-Lab.com

120 to 12 transformer circuit diagrams. Search DIY electronic projects and circuit diagrams with descriptions. Learn electronics.

Circuitos electrónicos

http://www.high-voltage-lab.com/search/120-to-12-transformer

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300mA DC to AC Power Supply300mA DC to AC 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

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RMCybernetics - DIY Homemade Power Pulse ControllerRMCybernetics - DIY Homemade Power Pulse Controller

Make a power pulse controller for driving transfromers, motors at variable power and frequency levels. Square wave, variable frequency, variable pulse width. This can be used for many things such as DC motor speed control, lamp or LED dimming, Transformer drivers. Ignition coil circuits and other high voltage PSU's.......

Circuitos electrónicos

http://www.rmcybernetics.com/projects/DIY_Devices/homemade_pulse_controller.htm

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300mA DC to AC 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........

Circuitos electrónicos

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

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Video Isolator Circuit Diagram

Description These days many more audio-visual devices in the home are connected together. This is especially the case with the TV, which may be connected to a DVD player, a hard disk recorder, a surround-sound receiver and often a PC as well. This often creates a problem when earth loops are created in the shielding of the video cables, which may cause hum and other interference. The surround-sound receiver contains a tuner that takes its signal from a central aerial distribution system. The TV .......

Circuitos electrónicos

http://easycircuit012.blogspot.com/2013/08/01-video-isolator-circuit-diagram.html

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Fluorescent Light. - Jose Pino's Projects and Tidbits.Fluorescent Light. - Jose Pino's Projects and Tidbits.

How to build a 4-Watts Fluorescent light using a disposable camera, powered by one 1.5 Volts battery. (5/29/2006)

Circuitos electrónicos

http://josepino.com/circuits/?fluorescent_light

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137 Khz CW transmitter137 Khz CW transmitter

This is the TX freq logic, using a 27Mhz CB xtal and dividers to generate the 136 Khz The 27. 407 Mhz is divides by 2 and then later by 10 in two 7493 counters then the 1. 37035Mhz is feed into a 4017 decade counter, this one divide the freq by 10 again.

Circuitos electrónicos

http://www.webx.dk/oz2cpu/radios/137kcw.htm

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Programmable Digital TimerProgrammable Digital Timer

The project -programmable digital timer- presented here can be used for setting time intervals in the range of 1 to 99 minutes without using large resistor or capacitor.

Circuitos electrónicos

http://bestengineeringprojects.com/electronics-projects/programmable-digital-timer-circuit

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