220v Dc to 220v Ac Converter Circuit

How to convert a high voltage DC supply to 240 v AC. I hope you having a better idea about these DC and AC voltage.

Ac the alternative current that the phases are continuously changing as per the frequency. The normal home appliances are working within the voltage range of 220-250v AC voltage at 50Hz frequency. So the concept is clear.

Dc the direct current, it is a linear voltage without any phase changes. So it has a fixed positive and negative terminals. From this, you will get a better idea about the Dc voltage and Ac voltage.

But in this article, we deeply discussed with the conversion of high volt dc supply to an Ac supply. For this, we need an electronic circuit board called inverter. Mostly the inverter is working with 12 v battery or 48 v Dc source.

The parallel connection will provide a huge voltage range as you want. But it is foolish thinking because if you need 120 v dc you need to connect about 10 batteries of with 12 v rating. It is impossible. For these conditions, we are using an Smps circuit to convert 12 v dc to 300 v Dc.

In this way, we can easily obtain the higher voltage. So using this converter will reduce the number of batteries.

Also check, 500w 12v to 300v dc converter circuit project

300 v Dc to 220v Ac Converter

Working

The circuit is working based on the PWM ic sg3525 and an H bridge circuit. The PWM will provide 50hz frequency so the working with that frequency as the same to the alternating current. So the H bridge MOSFET receiving the high voltage DC to it. Then the voltage is from any switched-mode power supply or high-frequency inverter. The voltage will be in the high frequency and it’s about 50-60khz frequency.

Then the high-frequency DC voltage will be converted into low-frequency AC voltage. it is suitable for a working fan, mixer grinder, and other home appliances. Using a few components you will get the power supply board easily.

Let’s discuss 300 v direct current to 220 volt AC converter PCB. The main part of this PCB is SG 3525 IC. It’s a normal PWM IC that is mostly using in the inverter circuit. Bhai using this IC we will generate the output pulse with 50 Hertz.

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This oscillator frequency will drive the four MOSFET of IRF460. In SG 3525 the frequency is determined by the resistor and the capacitor connected in the PIN number of 5 6 and 7. PIN number 5 and 6 is the important components for generating the determined frequency range. Hindi circuit year using 104 PF capacitor in 5 the pin of the IC. And using 130 k resistor in VI. These two components will generate the frequency output ranges from 50 hertz to 60 Hertz. The DC input of 300 what will inject into these four MOSFETs. This higher DC voltage will be converted into AC voltage.

12-volt dc supply is providing for working this circuit. I am already giving the SMPS circuit for converting 12-volt dc supply to 300-volt dc supply by using an atex transformer.

A special feature is also embedded in the circuit board you can also see that at 10k port will attach along the IC. this sport will determine when the IC will send of I already said this for below 10.5-volt dc the circuit will automatically shut down.

Download PCB layout from here