Pulsing Controlled Current

[Smikey]

Hi there,

I am Michael Panganiban from Philippines. I am simulating a pulse current generation using DAQ PXI 6251, Source measure unit (Keithley 2420) and an N-ch Enhancement Mode High Speed MOSFET. My requirement is to produce a 1.5A pulse current at tp=100microseconds.

I will initialize Keithley 2420 to output a 1.5A current at the drain terminal of MOSFET. I will use the counter output of DAQ to pulse a TTL signal as Gate-Source voltage and set set high time and low time to 100us (CO Pulse Time). Since my source measure unit is not yet available, I tried to simulate it using 5V DC signal but I can't produce the expected output. With this set up, specs of MOSFET and resources used (counter output), is it possible to produce the above requirements? Thanks

Hoping for your response. Any ideas, comments and critique is highly appreciated.

thank you very much and best regards,

Michael Panganiban