This small inverter works very well. However transistors need to be heatsinked if you want them to last and make this unit usable. You can take them out, put both of them on a big heatsink, and then connect their pins back to the board. You can increase the base resistors (1K) to 3.3K to draw less current (about 1A) at 12.7V DC input, and drive nicely a 220VAC 8-10W LED bulb of 740-1000LM, from points A & 2, with good efficiency. If you do not increase the resistors, you can drive bigger loads 30-50W but current and heat dissipation will increase. AC output is from points A & 2. DC output is from points B(+) and D(-). It is advised to connect an 680K resistor and a bypass capacitor 1.1-3.3uF/400V both in parallel to points B & D to smooth out the DC voltage and limit the peaks. Avoid to measure output voltages with a cheap multimeter as you may destroy it. Oscillation frequency is around 4.7-4.8KHz and the waveform produced is as shown in the pictures. I have also drawn its diagram.

This small inverter works very well. However transistors need to be heatsinked if you want them to last and make this unit usable. You can take them out, put both of them on a big heatsink, and then connect their pins back to the board. You can increase the base resistors (1K) to 3.3K to draw less current (about 1A) at 12.7V DC input, and drive nicely a 220VAC 8-10W LED bulb of 740-1000LM, from points A & 2, with good efficiency. If you do not increase the resistors, you can drive bigger loads 30-50W but current and heat dissipation will increase. AC output is from points A & 2. DC output is from points B(+) and D(-). It is advised to connect an 680K resistor and a bypass capacitor 1.1-3.3uF/400V both in parallel to points B & D to smooth out the DC voltage and limit the peaks. Avoid to measure output voltages with a cheap multimeter as you may destroy it. Oscillation frequency is around 4.7-4.8KHz and the waveform produced is as shown in the pictures. I have also drawn its diagram.

This small inverter works very well. However transistors need to be heatsinked if you want them to last and make this unit usable. You can take them out, put both of them on a big heatsink, and then connect their pins back to the board. You can increase the base resistors (1K) to 3.3K to draw less current (about 1A) at 12.7V DC input, and drive nicely a 220VAC 8-10W LED bulb of 740-1000LM, from points A & 2, with good efficiency. If you do not increase the resistors, you can drive bigger loads 30-50W but current and heat dissipation will increase. AC output is from points A & 2. DC output is from points B(+) and D(-). It is advised to connect an 680K resistor and a bypass capacitor 1.1-3.3uF/400V both in parallel to points B & D to smooth out the DC voltage and limit the peaks. Avoid to measure output voltages with a cheap multimeter as you may destroy it. Oscillation frequency is around 4.7-4.8KHz and the waveform produced is as shown in the pictures. I have also drawn its diagram.

Dobre obwody lutownicze dobrej jakości normalny Turcja cena tylko 17 Tl dostawa

Ürün güzel devre lehimleri iyi kalite normal yalniz Türkiye vergi dilimine giriyo 17 Tl teslimatta ödeme gercekleşiyor

Dobre obwody lutownicze dobrej jakości normalny Turcja cena tylko 17 Tl dostawa

15 dni przerwy, bardzo dobrze jak na tę cenę. Wieczorem tylko dioda LED 9-10W jest bardzo dobra do ładowania żarówki lub telefonu, może być używana do oświetlenia i ładowania kabli w obozie.

15 günde aras kargo ile geldi, bu fiyata çok iyi. Akşamları sadece 9-10 W lık led ampul yakmak veya telefon şarj etmek için çok iyi, kamptada aydınlatma ve tel şarjı için kullanılabilir.

15 dni przerwy, bardzo dobrze jak na tę cenę. Wieczorem tylko dioda LED 9-10W jest bardzo dobra do ładowania żarówki lub telefonu, może być używana do oświetlenia i ładowania kabli w obozie.

Bardzo dobrze, to przyszło na randkę, o której mi powiedziano

πολύ καλό. ήρθε στην ημερομηνία που μου είπαν

Bardzo dobrze, to przyszło na randkę, o której mi powiedziano

nice product, good for led bulbs

nice product, good for led bulbs

nice product, good for led bulbs

Gyors és pontos szállítás! Maximálisan meg vagyok elégedve a termékkel!

Gyors és pontos szállítás! Maximálisan meg vagyok elégedve a termékkel!

Gyors és pontos szállítás! Maximálisan meg vagyok elégedve a termékkel!

Produkty dokładnie to, co chciałem

ürünler tam istediğim gibi

Produkty dokładnie to, co chciałem