I am developing a new design with the WTC3243 and WLD3343. Is it necessary to feed both circuits with a regulated power supply? Is a rectified voltage with a "smoothing" capacitor sufficient?
What sensor would you recommend to be used with the WTC3243 temp controller: an AD590 temp transducer or a thermistor? Would a larger mass increase the stability?
Do the temperature controllers always provide full current to the driven element (a TEC or Peltier device, or resistive heater) when the actual temperature does not equal the set point temperature?
Using the LFI3751, we fail to get any output voltage. On start-up its temperature display is flashing although no other LED is flashing simultaneously (none of the four red error LEDs). While flashing it appears to show the temperature correctly. When we try to enable the output, the instrument gives a long tone, but fails to reset and to output a voltage.
We are using the WLD3343 with a C-mount 2W 808nm diode, and questions about how to handle the laser and controller. What handling precautions do you recommend? And what should we be concerned about when we’re configuring the driver with the laser?
Also, we want to make sure we’re minimizing current noise to the laser. Do you have any recommendations for noise and transient suppression filters?
