Trying to find right transistors to use for a project...sal2

Trying to find right transistors to use for a project...sal2

Greetings, All

I would like to switch on and off 4 of my 4mW pen lasers on and off (in various ways) using my usb 6008 DAQ device however I don't have enough current/voltage to power my 4mW pen lasers from my usb-6008 DAQ device. Here are some Specs that I've measured from my device. The digital outputs on the DAQ device produce:

5V, and 1mA (they have a 4.7k ohm resistor I can't get to inside)

What I would like to do is connect my 4 digital outputs from my DAQ device to

4 transistors that would switch the power on and off from a 5V dc Power supply.

I'm having issues trying to figure out which Transistors I need. Can anyone give a little assistance.

Also if you have any other suggestions I'm open to that also. I'm allways willing to learn something new.

Note:(DAQ) is short for Data Aquisition)

Thanks sal2

Reply to
Loading thread data ...

Do a Google search on MC1413. This 16 pin dip should provide you with everything you need. 5Volts is too high for Laser pens- 3 1.5 volt batteries=4.5 volts. Use a diode in series in the circuit.

+5V----Diode.....+laser------transistor----common. This is what I use to drive laser pointers.

Dave wrote:

various ways)


Reply to

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.