Easy capacitor calculationĪll our calculations are made with multiples of 0.1uF capacitors.Ī 0.1uF capacitor will pass 7mA when connected to a bridge. That’s another reason why they are so DANGEROUS. When the load is removed, the supply rises to 180v or 311V or 340v. Of capacitor-fed power supply only drops to 12V or 35V. In normal circuit with the load connecting, the output voltage Let’s learn the dangers of a CAPACITOR-FED POWER SUPPLY. The line will connect to the 0V like the hole of the power-outlet on the wall. It is no problem.īut what happens if the wires are reversed. If the Neutral connected to 0v of the supply. But if using a capacitor instead of a small transformer CAPACITOR-FED POWER SUPPLY We are therefore quite safe for the electric shock. Power transformer Separate the coils clearly. There is the insulation is between the primary and secondary.Īnd has the two lines indicate a magnetic circuit that exists between the two windings. We use the transformer to reduce from high AC voltage to lower voltage. It is basic of unregulated supply circuit,12V 0.2A. Then, this will produce a CURRENT FLOW through your body and it will kill you very quickly. The Line rises 311v then falls 311v below “ground” 50 times per second (50Hz of frequency). And, the peak voltage (or current) is 1.41 times the RMS value.įor example, the RMS voltage 220V is 311 Vp-p. It is called the RMS (Root-Mean-Square) voltage. In normal we know voltage in 0.707 times the peak voltage. So, any overvoltages that can cause instant death. Because it does not use an isolated transformer. Because you may be hit by electric shocks.
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