Question

check if the circuit diagram correct or not? if incorrect please correct it

Instrumentation The detection system comprised of a multicolour (Red 630 nm, Blue 470 nm, Green 525 nm) LED (5 mm, 30 mA maximum steady current) from LigCom Group (Glen Cove, NY, USA) and a highly integrated light-to-voltage optical sensors, combining a photodiode (PD) and a transimpedance amplifier on a single monolithic integrated circuit (TSL125-LF) from Mouser Electronics (Kwun Tong, Kowloon, Hong Kong). The PD is connected to a transimpedance amplifier and the output is directly proportional to the light intensity and the absorbance is also digitally obtained. Labview (SP1 2011) software was used for control of all components from National instruments (Macquarie park, NSW, Australia). An l/O module (NI-DAQ 6008) with 12bit ADC resolution was used. For the LED, negative cable of the 240V AC in 12V DC out power supply was connected into metal oxide silicon field effect transistor (MOSFET). The current regulator (LM317LF) from Taejin Technologies Co., Ltd. (Seo, Daejeon, South Korea) was connected to the Trimmer potentiometer.

Answer 1

Your circuit diagram is correct, but see if you can connect the power supply directly to the module.Giving power supply directly to the module does not seem to be a good idea.