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Hi, thank you for clearing my confusion. The pot is rated for 5W.
I understand what you are saying. I will check again today and make sure I didn't miss any points you mentioned.
I have also checked by increasing the input voltage from 5V to 10V DC by connecting it to a test load, nothing changed. Also, since I am making a constant current circuit, the change in load shouldn't affect the circuit.
Please correct me if I am wrong, with any input more than the nominal...
Hi, sorry for the confusion.
The laser I am using is not concerned with the voltage as long as the voltage is below it's rated value (2.6V). However, I need to vary the current value from ~100mA-~850mA due to operational purpose, so, I used a 10 ohm pot (R4). I added the 1 ohm (R5) to keep...
Hi,
I am building a constant current laser driver using LM317T. I am attaching my schematic herewith. I have simulated the circuit and it works fine, however, when I am making the actual circuit on the board, it doesn't work anymore. I want ~100-850mA in the output and the circuit was designed...
That cleared it up. Thanks.
It is an optical device. It uses a DC signal for tuning purpose, however, since we don't have the manual/datasheet, we don't know the device ratings. There is a 'Lemo FFA.0S.250.CTAC' connector attached to the device to input the DC.
The device can be tuned in only...
Sorry for being a noob but what did you mean by 'used to connect'?
Also, I am using a common multimeter to measure resistance.
Just to be clear, one clamp of the meter to the pin and other to the connector metal should give me the resistance, right?
Hi,
I am new here, so this may not be the right section to post this. If so, please forgive my mistake.
I am confused about the purpose of the coaxial cable connectors. What part do they play electrically? Does it act as a ground to the male pin?
By connector, I mean the metal housing around...
Hello,
I am new here and I am not entirely sure if this is the right section to post this. If not, then please excuse me.
I have an electrically tunable bragg grating filter made by Highwave Optical Technologies. The problem is I do not have the datasheet/manual for this device. I was...
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