00:00:00.170 everybody welcome to the n-channel video 00:00:02.48000:00:02.490 blog and today what I want to do is to 00:00:04.46000:00:04.470 convert electrolytic capacitors into non 00:00:06.61900:00:06.629 polarized caps so let's get right into 00:00:08.21000:00:08.220 it we want to make non polar icecaps 00:00:16.67000:00:16.680 well it's when you're going to be 00:00:17.96000:00:17.970 applying both positive and negative 00:00:19.27900:00:19.289 voltages to both terminals so it's a 00:00:21.29000:00:21.300 really huge advantage when you're 00:00:22.37000:00:22.380 working with AC electricity and that's 00:00:23.90000:00:23.910 exactly what the circuit is intended for 00:00:25.37000:00:25.380 power factor correction it's a huge 00:00:27.83000:00:27.840 ordeal and it's going to make sure that 00:00:29.00000:00:29.010 you save energy and use it more wisely 00:00:30.43900:00:30.449 and just overall efficiency so let's 00:00:32.56900:00:32.579 break it down how the circuit actually 00:00:33.86000:00:33.870 works now to actually build a circuit 00:00:36.92000:00:36.930 there's nothing to it all you need is 00:00:39.11000:00:39.120 two electrolytic capacitors and you 00:00:41.00000:00:41.010 connect the negative terminal to the 00:00:42.47000:00:42.480 negative terminal or the positive to the 00:00:43.85000:00:43.860 positive and then you just consider this 00:00:45.68000:00:45.690 one giant capacitor and these are your 00:00:48.44000:00:48.450 terminals right here so both these 00:00:49.94000:00:49.950 terminals can receive positive or 00:00:51.29000:00:51.300 negative voltages so it's extremely 00:00:53.33000:00:53.340 straightforward but now if you want the 00:00:54.97900:00:54.989 circuit to be a lot more enduring you 00:00:56.77900:00:56.789 can add a voltage reference and what 00:00:58.31000:00:58.320 you're going to be doing is just 00:00:59.27000:00:59.280 throwing a massive resistor in parallel 00:01:01.36900:01:01.379 to the actual cap and what that's going 00:01:03.50000:01:03.510 to do is make sure that your voltages 00:01:05.78000:01:05.790 are evenly distributed between the two 00:01:07.76000:01:07.770 capacitors and all I'm doing in my 00:01:10.52000:01:10.530 circuit is adding one mega ohm resistor 00:01:12.32000:01:12.330 to do that now there is a consequence to 00:01:14.84000:01:14.850 this design they're going to lose half 00:01:16.99900:01:17.009 the capacitance rating for your 00:01:18.46900:01:18.479 capacitors now my capacitive rating here 00:01:20.66000:01:20.670 is 100 microfarads and the maximum 00:01:22.82000:01:22.830 voltage that can be applied to a single 00:01:24.41000:01:24.420 electrolytic capacitor is 100 volts 00:01:26.87000:01:26.880 now because I'm applying this circuit 00:01:28.67000:01:28.680 right to 120 volts on the mains that 00:01:31.16000:01:31.170 means I have to take in the absolute 00:01:32.63000:01:32.640 peak that I'm going to be receiving on 00:01:34.03900:01:34.049 it and it won't be 120 it's going to be 00:01:36.35000:01:36.360 times the square root of 2 and in the 00:01:38.66000:01:38.670 case 00:01:39.10900:01:39.119 I'm going to have 170 volts at peak 00:01:41.17900:01:41.189 being applied to the circuit so that 00:01:43.16000:01:43.170 means I'm going to have to have two of 00:01:44.38900:01:44.399 these in my circuit configuration able 00:01:46.21900:01:46.229 to actually handle that huge spike now 00:01:49.24900:01:49.259 when we simplify these circuits this is 00:01:52.31000:01:52.320 what we have we have two non polarized 00:01:54.62000:01:54.630 electrolytic capacitors in series and 00:01:56.53900:01:56.549 they have a voltage rating of 100 volts 00:01:58.42900:01:58.439 each and remember that we actually 00:02:00.26000:02:00.270 deduce the total capacitance we have 00:02:02.84000:02:02.850 which is now going to be 50 micro 00:02:05.45000:02:05.460 farad's and because these are in series 00:02:07.31000:02:07.320 that means we're going to have this 00:02:09.35000:02:09.360 circuit at the end which is a voltage 00:02:11.05900:02:11.069 rating of 200 volts but 00:02:13.20000:02:13.210 passive ring of 25 micro farad's I just 00:02:16.89000:02:16.900 quickly want to measure the capacitance 00:02:18.33000:02:18.340 so I'm concerning this right here one 00:02:20.46000:02:20.470 capacitor so if we take a quick 00:02:22.32000:02:22.330 measurement you can see that's fifty 00:02:24.30000:02:24.310 five point two so extremely close to the 00:02:25.89000:02:25.900 fifty and if we look at the other fifty 00:02:29.19000:02:29.200 six point eight and these are the exact 00:02:31.38000:02:31.390 opposite so that's negative two negative 00:02:32.76000:02:32.770 and that's positive to positive 00:02:34.20000:02:34.210 Tayla straight that this will work and 00:02:35.58000:02:35.590 in total our total capacitance is twenty 00:02:39.51000:02:39.520 seven point eight now before I plug the 00:02:41.91000:02:41.920 circuit in I just remind safety first 00:02:43.65000:02:43.660 wear your safety goggles and all the fun 00:02:45.18000:02:45.190 stuff and you're working with this at 00:02:46.26000:02:46.270 home and that you have to have a load 00:02:48.66000:02:48.670 added onto the circuit because 00:02:50.58000:02:50.590 capacitors are like a short in an AC 00:02:52.80000:02:52.810 circuit you have to take that into 00:02:54.69000:02:54.700 account so what I have here is a 00:02:56.13000:02:56.140 resistor that's going to be restricting 00:02:57.93000:02:57.940 the total current flow through the 00:02:58.95000:02:58.960 circuit so let's plug it in and actually 00:03:00.69000:03:00.700 see if it holds up so as you can see 00:03:03.21000:03:03.220 we're applying 120 volts these 00:03:04.80000:03:04.810 electrolytic capacitors and they're 00:03:06.15000:03:06.160 holding up and that's how simple it is 00:03:08.01000:03:08.020 to make a non polarized electrolytic 00:03:09.75000:03:09.760 capacitor anyways guys thanks so much 00:03:11.40000:03:11.410 for watching don't forget to Like 00:03:12.63000:03:12.640 comment share and subscribe enjoy a week
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