Re: [CAD_CAM_EDM_DRO] Re: Solid State Relays

> thanks for the info. Can you tell me what the voltage output on your
> computer port is? How many milliamps do you get. Reason I ask is my
> brother made a board for me to control the spindle but it needed to
> be through a optoisolator and relay/transistor combo. My labtop only
> puts out about 4.25 volts at about 6 millamps (or something that
> small). How much where the relays?
> thanks
> tauseef

Tauseef;
I tested a few different SSR's for input current requirements. Those rated
for 3-32 VDC input will draw maximum current at maximum voltage, typically
12-18 mA. The input is just a resistor in series with an LED so lower
voltage = lower current. At 5V some of them only draw 2mA.

Doug