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10 Threads found on edaboard.com: Thd Measurement
thd measurement is used to analyze AC signals. I think you dont need thd measurement because your output is DC. You just need to meter output voltage ripple. This measurement will show u quality of the SMPS output. Your output will be DC + AC(ripple). So your main signal is DC and some AC ripple. You dont (...)
Hi All, Almost all literature refer to compression point and intercept point measurements in terms of input&output power. When simulating a simple 2stage opamp, that has been designed to drive a capacitive load, how do you setup the simulation for input & output power ? Thanks
Hi hojongch, This is another method: If you can measure the total power (usually this is done in time domain) and the dc and 1st (funtamental) components, you have Harmonics_power = Total_power - DC_power - Fundamental_power It this way, in theory all harmonics are included. The problem is that in the case thd is low, as this is calculate
fundamental, pure sine wave= 50hz 2) harmonics injected= 100 hz ( ie, 1st harmonic) ( harmonics is the integral multiple of fundamental wave) then we add both pure and harmonic , to get combination = distortion ( shown in gragh as combination) then we pass through filter, and reproduce pure sine wave. now here,, next step is to find out
You don't measure the input power. It's actually V1*I(V1). As a hint: You can also determine the power factor from an I1 fourier transformation respectively thd measurement.
hello !! how can i measure HD3 ,thd, IIP3, IIM3 using cadence analog environment for cmos ota design please reply soon......its urgent thanks in advance :)
hi can anyone give me some reference books or examples? thanks
Hi, I am trying to measure the above mentioned dynamic specs of an ADC in Spectre. My ADC is a pipelined, 8-bit and operating at 80MSPS. What i am doing is giving a sinusoidal input of 9MHz and sampling frequency of 60MHz. The input frequency i decided using fin/fs=Mc/M formula. I am using transient simulations with strobestart=1/60MHz and strob
There are several ways to measure the SHA in the lab: 1) Direct measurement: if your SHA can drive 1Mohm impedance, then you can hook up your SHA to the spectrum analyzer and measure the thd, SNR, etc; 2) Indirect measurement: have another ADC with higher accuracy and higher bandwidth. But you need to be careful about the possible (...)
Hi this link is reference to the subject of this post, I interesting in any document that learn in how to measure and testing the amplifiers like IHF (Institute of High Fidelity) , Power, thd, TIM, frequency response, etc..... any information is welcom org is dedicated to te