This simple and cheap(but powerful) squarewave oscillator can give oscillation to any mosfet based inverter/ups.
The circuit consists of one central I.C CD4047. I used HCF4047BE from ST microelectronics. This is an improved version of circuit spread over the internet of inverter by I.C 4047.
This circuit is the first part of the Inverter project.
This circuit has more efficiency than that one. Here the MOSFET does not gets hot easily, and the Diodes IN4148 provides protection of the circuit in case of MOSFET leakage. A LED is added for easy diagnostics.
Veroboard design of the circuit is given also, as we know, making PCBs is another dedicated work and we cannot make it in hurry. Inspite of that, veroboard gives same functionality in lesser time(though size becomes a little big.)
But if you want to make PCB for this, follow my PCB making guide .
Parts List:
| IC | CD4047 | 1 |
| Capacitor | 0.01uF or 103 | 1 |
| Potentiometer | 100K | 1 |
| Resistor | 220 Ohm | 4 |
| Resistor | 10k Ohm | 2 |
| Resistor | 330k Ohm | 1 |
| LED | Red | 1 |
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