design DC motor speed controller with tachometer feedback

[kg300]

Re: SG3524 pwm inverter

Here is a new version of power inverter circuit, 12VDC to 220VAC & 1000W with over load and short circuit protection, low battery alarm, surge power 1500W
PCB and Gerber files but no Schematic.

 

[OBIALOR]

The question still remain on answered your schematics .g cannot be open what software can be use to open it and even your gerber file.

 

[kg300]

you can use "gerbv" to view gerb files and can be download from gerbv - A Free/Open Source Gerber Viewer