To your first question yes it is possible to simulate PWM duty cycles.
It would appear your previous posted Tina model had the function generator with sweep time embedded from past analysis plots. Though the function generator was turned off it was somehow…
Hi Kai, Have you read the data sheet, 240 has embedded dV/dt transient filtering. Adding input filtering precision error % rises well above shuts resistive error %. The 2mohm has 3.9% initial error, 50 A peak via Web based shunt value tester. Bit late…
Hi Kia,
Perhaps not as INA240 has advanced PWM rejection to stop ( ΔV/Δt) on the +/-IN. Adding input filters is discouraged in datasheet text.
Datasheet quote:
Enhanced PWM rejection provides high levels of suppression for large common-mode transients…
Part Number: INA240 Other Parts Discussed in Thread: UCC27714 , TIDA-00909 , INA282
After making 75k series resistance output of A1 to SAR input a much larger transient occur to cause fault comparator trip. With 4R87k A1 output 1st transient pulse be just under…
First, I'll recommend looking at TI designs TIDA-00909 and TIDA-00913, regarding motor control with in-line sensing using the INA240. Have you looked at this already? It uses a C2000 microprocessor launchpad and our INA240 to create control circuitry…
Hi Patrick, Vishay shunts; WLSF2512 (0.5mohm 1%) TRC <20ppm/*C are bit more accurate but even they produce higher CCMV for unknown reasons. The INA output gain becomes increased relative to input bias. Remains unclear why the laws of physics break down…
Part Number: UCC27714 Other Parts Discussed in Thread: TIDA-00778 , TIDA-00909 , TM4C1294KCPDT , UCC27712 , , UCC21220 , LM5170-Q1 , DRV8301
What can be done to calm 10Mhz ringing of HO output causing random very high VDS peaks? Is there some way to reduce HO output…
Hi Derek,
Derek Payne said: There is 300V of switch node ringing. Below is the exact same circuit at 400V bus voltage:
I have also seen inductive ringing lumped into diode recovery in some earlier DUT testing. The later PDF attached above has better detail relative…
Part Number: LMG5200 Other Parts Discussed in Thread: , TIDA-00909
Hi,
I want to operate LMG5200 at 1+Mhz frequency range.
The PWM signals are generated from a microcontroller (3.3V).
What all are the considerations i need to check before connecting…
Part Number: INA240 Other Parts Discussed in Thread: TIDA-00909 Last thread posted scope captures confirmed 240 input polarity (+IN faces B+ supply) being correct and does not intentionally invert the A1 output. Yet any added external output filter quickly…