Inverter 12VDC to 230V 50Hz

The power inverter can be useful anywhere where you do not have to hand power outlet, like in your car, trailer or cottage. It is powered by mains appliances such as radios, tape recorders, televisions, electric shavers, lamps, Compact fluorescent or charger for mobile phone etc. The maximum load depends on the inverter transformer used as transistors can be up to 150W.

Inverter 12VDC to 230V 50Hz Circuit Diagram

Inverter Circuit Diagram

The source frequency of 50 Hz is known 555 timer, frequency, impact resistance Rx and capacitor Cx. The switching function is performed by two MOS transistors with channel N. The state resistance is only 0.2 R. One is driven directly from the IO, the other through an inverter with BC547.

Gate transistors have a relatively large capacity of about 1 nF, must be driven by the least possible resistance. The output resistance of IC 555 is just about the 100R, which is good. BC547 collector resistance must be as small as possible (you can use less of its current is negligible against the supply current of the inverter).

Transformer is a network with two secondary windings 12V and must be designed for the maximum load required drive. The load must correspond to a cooler two power transistors, which are screwed through the mica. Inverter no-load consumption is about 400 mA. The source must be sufficiently hard, the supply voltage should be in the range of about 10 - 14V. The positive lead is suitable fuse. Inverter efficiency is more than 70%.

When an inverter Be careful, though the output voltage is separate from the country (as opposed to network).

Note: Frameworks transistors are connected to the middle pin, so it must be insulated from the heatsink. The second option is to use a transistor for each separate cooler. You will then not touch each other and must not be earthed.

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