GridWorks Green Solar's latest activity

Today's testing ended early due to unstable operation at dual 180VDC and FET trigger problem, must allow parts ordered to arrive to...

New scope data 😎 So far only thing that has changed is the way I am driving the optic couplers, Looking more like a sinewave ❤️ Best...

With some tedious testing with a digital ohm meter the optic couplers/potentiometers gave me the magic resistive numbers I needed on the...

Ready for solar testing on the two FET inverter except the optic couplers settings are too touchy right now for live 180VDC test, the...

Stereo output, changed a resistor in the inverted timer output for more power, It really works! Must be a minimum voltage to activate...

As of right now both channels test OK for high voltage control and main output. Timer is powered by transformer just below 5VDC also...

Current status have picked up a new bias to the P channel FET from the floating 12VDC power supply, must move 555 timer to battery or...

555 Timer has been installed in the two FET inverter, yet to get basic gate control and P channel FET may need replacing. May change to...

Built a simple but rare signal inverter, Guess what It works perfectly Transistor shorts out resistive circuit turning off the LEDs...

Small step forward harvested NPN transistors from junk boards, added leads and tested. Now have a LED that triggers full brightness...

Made a decision but it will not be the easiest on me, The simple 555 configuration provides the absolute best square wave and 60Hz...

555timer is working with a new capacitor at around 60Hz with a 4Hz drift, square wave is ugly compared to the simple 555 configuration I...

New 180VDC feed is complete to the inverter cabinet with a new glass 5amp fuse for protection, 5+5+5 = 15Amp for the mini-split, will...

Picture: I have this working with two LEDs, the rail road flash is way too slow, timer needs big adjustments. Slow progress, have to...

Making a new 555timer with a different configuration, Also big forward progress on third independent 180VDC feed to the new Inverters...

My first couple of attempts have failed to provide the necessary output on my dual trace scope, same exact problem as before that forced...

Think all I need is VCC added to pin #4 for reset bias for pin #3 to drive the opposite LED, if I can expose pin 4 from the silicone...

Currently making changes so I can dim the LEDs in the opto couplers properly, Know the exact limits and need this to be corrected the...

No luck with my 5.1 Zener diodes but the 12 volt zener is working just like the two previous power supplies for the FET gates. The max...

Actually installing 555timer assembly into inverter, changing 12VDC Zener diode to 5VDC Zener expect 5volt will help stabilize the...