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205 articles written by Received by Email

Author: Received by Email

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adjustable voltage regulator

Adjustable Voltage Regulator with TDA2030

Received by Email - 11/21/2012

This Adjustable Voltage Regulator is made by combining a common 78L05 with an integrated audio amplifier of the [...]
ac dc converter diagram

AC to DC Voltage Converter Circuit

Received by Email - 11/19/2012

This AC to DC converter circuit is capable of converting an alternative voltage within 70V - 260V range [...]
dc voltage doubler diagram

Cheap DC Voltage Doubler Circuit

Received by Email - 11/18/2012

This is a cheap DC Voltage Doubler Circuit diagram, which requires a few components and will deliver 10V [...]
variable power supply

Variable Power Supply with UA78G/UA79G

Received by Email - 11/16/2012

A stable variable power supply with an adjustable output voltage from 5 volts to 30 volts can be [...]
nicd battery charger diagram

Reverse Polarity Protection Battery Charger

Received by Email - 11/14/2012

This reverse polarity protection NiCd battery charger can charge up to 7 NiCd batteries connected in series. This [...]
overvoltage protection circuit diagram

OverVoltage Protection Circuit

Received by Email - 11/13/2012

This overvoltage protection or crowbar protection circuit is used where we need protection against high voltage surge. The [...]
universal power supply

Universal Power Supply Circuit

Received by Email - 11/12/2012

This universal power supply contains, beside the bridge rectifier, a voltage stabilizer (78xx) and a pnp power transistor. [...]
3A adjustable power supply

3A Adjustable Power Supply

Received by Email - 11/10/2012

This is a compact adjustable power supply that delivers a stable voltage and currents up to 3 amperes. [...]
220v power interface diagram

220V Power Line Interface

Received by Email - 11/09/2012

This simple 220V power interface is intended as an interface for monitoring electric equipments and devices using a [...]
bd139 12v dc power supply

Simple 12V DC Power Supply Circuits

Received by Email - 11/08/2012

Here are 4 simple 12V power supply circuits with output voltages around 12V. First power supply circuit is [...]