This circuit is a 1500W DIY Solar inverter that working without Battery, using solar panels only!
With adjustable output Voltage and Frequency.
Maximum input voltage is 42V DC.
Minimum input voltage is 6V, However because i used transformer with primary of 15-0-15 the output voltage will be around 100V only (at 6V input).
You can use transformer with primary side of 6-0-6 or 9-0-9 so you got 220V even with 6V input, But 15-0-15 transformer is recommended because most solar panels generate voltage higher than 18V .
You can use two parallel MOSFET instead of one, to help them handle more current and decrease Rds ON (resistance of drain to source when MOSFET is switch ON).
You can order this PCB from here:
https://www.pcbway.com/project/shareproject/Solar_Inverter_Without_Battery_ce004621.html
Parts List:
IC TL494
Mosfet 50N06 (2pcs or 4pcs)
Potentiometer 10K
Potentiometer 500K
Capacitor 100nF (3pcs)
Capacitor 330uF 63V
Zener diode 18V (2pcs)
IC Socket 16pin
Heatsink (2pcs)
Resistor 1K (4pcs)
Resistor 3.3K
Resistor 4.3K
Resistor 120K
Resistor 150K
Mains Socket
AC Voltmeter
Header Jumper (3pcs)
Transformer 15-0-15 to 220V 1.5KVA
Connectors for MC4 wires
Circuit Diagram:
Video:
