#Denoiser 3 vs 2 install
#Denoiser 3 vs 2 series
#Denoiser 3 vs 2 mac

The 0dB point is set at 1.3Vrms and when I measured the input ripple it was at around -1dB. I didn't use any kind of shielding while measuring. Measurements have some 50Hz parasitics and the 150Hz stuff is harmonic from the 50Hz, and those seem to depend on the position of the pcbs on my desk. The TO-126 types are not compatible with these pcbs, I installed them backwards for testing only. I've tried others and had worse resultsДў-4 second circuit with 2SB649, TIP32C and last one with MJE350. The attached pictures are measurements as follows:ДЎ. I tried with few different output caps and didn't seem to make any difference, seemed stable with any but I didn't try any extreme values, 100-330uF with 50-200mOhm ESR. I have no MJE15033 at the moment to test with. Both of these showed worse performance in LTSpice than in reality. TIP32C had a bit worse performance by few dBs. The second circuit seems to perform good with many models of pass transistors. The _cm files are the version with the extra capacitance multiplier which ads around -55dB to total PSRR.Д«oards sizes are 37mm x 65mm for the normal one and 38mm x 80mm for the one with capacitance multiplier.ДЇorgot to mention, I built and measured both with a 60dB LNA on my PC's audio card.Д«oth circuits have at least -140dB PSRR, as that's right at the limits of my measuring setup.

Just solder them on the signal pad of the u.fl connector. You can also use two normal wires, twisted together, for remote sensing. In case you want to use remote sensing you keep JP2/JP3 open. There's footprints for u.fl connectors if you want to use coax for remote sensing. JP2/JP3 jumpers are for sensing the noise at the output connector.

#Denoiser 3 vs 2 install

There's footprints for two 5mm LEDs in series, you can install a Zener between these footprints, and there's also a LM329 footprint. You can use a potentiometer or simple resistors to set the output voltage. It requires two top links, but you don't have to do anything if you make the pcb at fab house, there are top traces. This pcb is single sided and can also be diy-ed. This is the pcb design for the first circuit. I'll attach the pcb designs in the next post.

If you have questions about recommended part values for certain voltage/current output I will try to help. I built and measured both designs with earlier versions of the posted pcbs. I recommend using red LEDs, you can use the model in the LTSpice sim files so you can test your needed part values. I tested this for the Vref LEDs and also the CCS LED. I tested with IR, red, yellow, orange and green LEDs and worked fine with either.

#Denoiser 3 vs 2 series

In simulation I managed to get 30V/4A output from both circuits but some modifications are required for mora than 1A current output.ДЇor up to 30Vout you could use two LEDs in series but above this you should switch to Zeners. Voltage output range should be pretty wide and limited by capacitor voltage rating and transistors used. Out of all three options LEDs have the worst tempco but it's usable. Voltage reference can be either two LEDs in series, Zener or even LM329. Depending on your needs it can improve the PSRR to around -200dB.Д«oth circuits can be made with regular parts but for maximum performance certain BJTs should be used. I also made some pcb designs for both, with and without a capacitance multiplier. They both have a PSRR of more than -140dB depending of output voltage/current. I applied the denoising circuit to two types of discrete regulators and it improved their performance by quite a bit. The denoising circuit was developed by Elvee and improved by Diego. I made them while playing with the denoiser circuit presented in this thread.

#Denoiser 3 vs 2 mac

Hope this helps anyone wondering about he denoisers, especially those looking into an M1 mac cause this thing is so much better at rendering than I thought it would be.A few members asked me to start a new thread for these two circuits. OpenImage Denoiser: 2:21.72 - DidnвЂ™t expect the time to be more than halved, but IвЂ™ll take it!.NLM Denoiser: 5:32.71 - Seemed pretty good for the size.My Macbook got these results when comparing NLM, and O.I.D.: Similar to what many have said, OpenImageDenoiser works better than NLM though IвЂ™m sure the opposite could be true, depending on your hardware. On my linux machine it works wonders on the scenes I render. IвЂ™ve found that Optix provides better results when you have access to it. I use a Linux machine, Nvidia Geforce 1050ti, 2 hex-core intel xeon chips, 32gb ram.ДЄs well as a Macbook Air M1, 16gb ram, with the 7-core gpu configuration.