Hi cc,
c cc said: When testing the loop op-amp, what principles should be followed when selecting the LOOP AMP?
The DUT op amp in this case has GBW = 1MHz. Since gain is configured at 51k/102 +1 = 501 V/V, its usable BW = 1MHz/501 = 1.996 kHz. In order…
Hi Hossam,
Your capacitor can achieve <10mV ripple, but noise is affected by many things so it cannot be analyzed in simulation.
A popular bode plot test hardware is Bode100. Some Rigol and Siglent oscilloscope can support bode plot function.
We only…
Part Number: TIDM-HV-1PH-DCAC Tool/software: I compared computeDF22_PRcontrollerCoeff() source code in TIDM-HV-1PH-DCAC
with the document to convert the PR controller into coefficients for DF22, written by Manish.
But expressions of coefficient b0,b2…
If you want to optimize the transient/start-up response, you need to know what your closed loop frequency response is doing. You need to measure the control-to-output closed lop response using a network analyzer to obtain what is more commonly referred…
Part Number: UCC25660 Tool/software: Hello Everyone,
We are currently working on a design that uses the UCC256601 and as we push towards layout a few questions have been asked about loop stability.
1) Can the Loop Stability tested using Phae Gain analyzer…
Other Parts Discussed in Thread: TL431 , UCC28911 , LM25037 Hello,
I am trying to find measure the Bode Plot of a 12W Flyback converter made from Viper27 IC. It has an integrated MOSFET and controller.
I want to know the phase margin at the crossover frequency…
Thank you for your quick response, will increase the loads and update you
We don't have frequency response analyzer to check BODE PLOT and PHASE MARGIN, please advise is there any alternate method?
Hey Suganya,
To analyze the closed loop response of the circuit with respect to Vref, I added a voltage input above the DC source and ran the AC transfer characteristic. E2E_DAC8822_Acl.TSC
From the resulting bode plot, the closed loop system appears to…
Part Number: TPS62913EVM-077 Other Parts Discussed in Thread: TPS62913 Hello, In the EVM documentation there is a description on the modifications which are required to measure the shown bode plot.
The description is not really clear how the circuit has…
I recently purchased a frequency response analyzer and am looking to validate that it measures gain and phase margin properly. Can someone recommend a TI dev board for a dc/dc converter that has:
1) gain/phase margin data (a bode plot) in the datasheet…
