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Bookmark or Share- Is frequency for dc zero Hz? - Electrical Engineering Stack ExchangeNote that if one samples a signal twice at frequencies whose ratio is not a rational number (say 1.0 and π), the first sample by itself would be unable to distinguish between DC and integer multiples of 1.0Hz, while the second could be unable to distinguish between DC and integer multiples of πHz.
- How to reduce DC voltage using resistors? - Electrical Engineering ...A shunt regulator. This means using a resistor to drop the voltage like you are suggesting, but then adding an extra device in parallel with the load to control the voltage. The shunt regulator will adjust its current (within limits) to keep the current through the resistor correct to maintain the desired output voltage. A switching regulator.
- What are the highest DC and AC voltages or currents that can be ...It seems the human body has enough capacitance to allow more current at AC - meaning mains voltage is more dangerous than DC of same voltage as proven in this video I've just come across. This answer is provided for your information only, simplifying a complex question - it shall not be liable for any of your actions
- What happens if you feed DC into a bridge rectifier?On AC the peak voltage is ~1.4 times the rms value, so the DC voltage may need to be up to 1.4 times higher. On AC the current is shared between all 4 diodes in the bridge so each one only has to handle half the average current. On DC the current only goes through 2 diodes, which should both be rated for the full continuous load current.
- DC-DC Voltage Doubler - Electrical Engineering Stack ExchangeA couple of points: 1) I guess what you are trying to design here is a boost converter. While it is often called a DC/DC converter, the conversion itself is AC/AC. Basically, you create a square wave out of the DC voltage and then upconvert and rectify it afterwards. Almost no one designs those from scratch.
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