Tag Archives: SMPS

28V DC To 5V DC Switch-Mode Converter (Regulator)

Posted on February 23, 2011 by Rend

This is a 28VDC to 5VDC switching converter circuit.  As a switch-mode voltage regulator, this circuit gives higher efficiency than linear regulator type. Using the National Semiconductor LM1575-5.0, this circuit can be used to convert 28VDC To 5VDC with efficiency … Continue reading →

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Step-Down Charge Pump Regulator for USB Powered Devices

Posted on February 26, 2010 by Rust
Step-Down Charge Pump Regulator for USB Powered Devices

this is a circuit of Step-Down Charge Pump Regulator for USB Powered Devices. The critical design parameter of this circuit is the circuit area. To solve this problem we can use Charge pump step-down circuit. This circuit only requires   the … Continue reading →

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Power Factor Controller

Posted on January 6, 2010 by Adam
power-factor-controller-450w

This circuit is called power factor controller with universal input circuit. It has input range about 90 to 268Vac. Any standards of mains supply  in almost any country would be under that range. Maximum load of this power factor controller … Continue reading →

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