bejemele
Newbie level 5
I have a PLC which use stabilized 5 DC input.
I want to add a device that can convert 5 - 220 volt AC / DC to stabilized 5 volt DC.
in order to make a PLC operates in more flexible way, I find schematic about voltage indicator. here this scheme :
Parts:
P1 = Red Probe
P2 = Black Probe
D1 = 5 or 3mm. Red LED
D2 = 5 or 3mm. Green LED
LP = 1220V 6W Filament Lamp Bulb
if i replaced LED with optocoupler, will it be reliable? does any one have better solution?
I want to add a device that can convert 5 - 220 volt AC / DC to stabilized 5 volt DC.
in order to make a PLC operates in more flexible way, I find schematic about voltage indicator. here this scheme :
![Very_Simple_DC_or_AC_Voltage_Indicator_Circuit_Diagram.gif](https://lh4.ggpht.com/_FdGFE8NBDgc/SowFhoo1nyI/AAAAAAAAAnk/zQ5QTCzfSBA/Very_Simple_DC_or_AC_Voltage_Indicator_Circuit_Diagram.gif)
Parts:
P1 = Red Probe
P2 = Black Probe
D1 = 5 or 3mm. Red LED
D2 = 5 or 3mm. Green LED
LP = 1220V 6W Filament Lamp Bulb
if i replaced LED with optocoupler, will it be reliable? does any one have better solution?