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Dear All, I replaced the FOD3180 with VO3120, which has faster response to the MCU signal(upto 250KHz). Increased the load frequency to 20KHz and results are quite optimistic.. The Graph: The Readings : The linearity is quite good. The only issue is with peak-to-peak noise, at the...

Dear Sir, We do appreciate your valuable inputs, also Can you please put more insight on how can the filter create further issues?

Dear Sirs, The greybox is FOD3180 , an ISOLATED MOSFET Gate Driver for isolation of the MCU to the Output. The Non-isolated of the chip gets its supply from 15V Step Down regulator above. For this application 8 bit resolution is also good enough(255 steps), linearity is a requirement, but as...

Hi Brian, Thanks for quick support, I am measuring ripple using 200MHZ oscilloscope, by using trigger at 2ns range.This techtronix scope also has FFT function, but I do not know how to use it!Will try using it. Yes I am supplying the system with a SMPS with 110V DC output from 230V mains...

Dear BrianG, 16 bit PWM is here means the resolution, since the 16bit timer is used to generate the PWM signal. The Analog Output is intended for electrical braking system, whose controller accepts analog signal(0 to 140V) at 130mA current. To reduce the reliability issues with heat , and for...

Here are the requirements: Supply 140V DC Control Signal : 3.3V DC PWM Signal (16 bit) Output Needed : 0 to 100% of Supply Voltage based on the control signal duty cycle Need Good linearity and isolation upto 2KV Need L/C Filter for smooth Output Output current Required : 1Amp I had...