DC/AC Pure Sine Wave Inverter

This project focuses on DC to AC power inverters, which aim to efficiently transform a DC power source to a high voltage AC source, similar to power that would be available at an electrical wall outlet.Inverters are used for many applications, as in situations where low voltage DC sources such as batteries,solar panels or fuel cells must be converted so that devices can run off of AC power. One example of such a situation would be converting electrical power from a car battery to run a laptop, TV or cell phone.

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Filed Under: Converter, UPS

6V to 12V Converter

This inverter circuit can provide up to 800mA of 12V power from a 6V supply. For example, you could run 12V car accessories in a 6V (British?) car. The circuit is simple, about 75% efficient and quite useful. By changing just a few components, you can also modify it for different voltages.

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Filed Under: Converter, UPS

Basic UPS Power Supply

This circuit is a simple form of the commercial UPS, the circuit provides a constant regulated 5 Volt output and an unregulated 12 Volt supply. In the event of electrical supply line failure the battery takes over, with no spikes on the regulated supply.

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Filed Under: Converter, UPS

500W 12 Volt to 220 Volt Inverter

This is A Simple inverter Circuit which converts a 12Volt DC to 220Volt AC50Hz 500W.Its easy to make and very low cost.Any one can make this circuit easily in home.

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Filed Under: Converter, UPS

Mini UPS System

This circuit provides an un-interrupted power supply (UPS) to operate 12V,9V and 5V DC-powered instruments at up to 1A current.The backup battery takes up the load without spikes or delay when the mains power gets interrupted.It can also be used as a workbench power supply that provides 12V,9V and 5V operating voltages.The circuit immediately disconnects the load when the battery voltage reduces to 10.5V to prevent deep discharge of the battery.LED1 indication is provided to show the full charge voltage level of the battery. miniature white LEDs (LED2 and LED3) are used as emergency lamps during power failure at night.

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Filed Under: Converter, UPS