voltage - Minimum clearance between two traces that have a …
Aug 30, 2017 · The accepted creepage distance depends on the Comparative Tracking Index (CTI) of the pcb material (in the table it is the "material"), on pollution degree, if traces are on the same or different layers, if the required insulation is Basic, Functional, Double (or Reinforced), that depends on the working voltage of the connected circuits, also ...
Voltage input for charging NiMH Batteries
Jan 8, 2011 · With that in mind, then the charge current spec of 200ma, at a per battery rated voltage of 1.2v * 1.15 (Battery voltage plus 15%) would be 1.4 volts per battery (Cell), two in series would be 2.8v, 12 in series would be (1.4v * 12 batteries) at a charge voltage of 16.8 volts across the series battery bank of 12 batteries.
voltage - Calculate battery state of charge percentage - Electrical ...
What is the correct formula to calculate battery state of charge percentage based on the battery type (12v, 24v, 48v and so on) and the current battery voltage. For example if I have a 12v battery...
How to reduce DC voltage using resistors?
Feb 8, 2023 · 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.
capacitor - How to calculate voltage after rectifier? - Electrical ...
The main point here is that the thick black line shows you what the capacitor voltage roughly looks like when there is a real load applied and the capacitor is designed within some range of reason for the load. As the rectified voltage gets past the bridge and is rising, at first it does nothing much since the capacitor voltage is higher.
Guessing power line voltage from the number of disc insulator
Is there a good way to guess the power line voltage based on the number of insulator discs that attach the line to the transmission tower? We usually use as a rule of thumb for determining the number of porcelain/glass suspension disc insulators: 10kV for each disc (standard 5-1/4' x 10").
How to interpret the stepper motor voltage requirement?
HERE it says that the recommended voltage for driving it is 12-24V. But if you open the (feeble) DATASHEET, it says that the rated voltage is 4.8V, which is confirmed by multiplying the operating current with phase resistance. If this is true, then as I understand any driver that requires higher minimum input voltage than 4.8V is unsuitable.
thevenin - How to find the Thévenin voltage? - Electrical …
The Thévenin equivalent consists of a single voltage source in series with a single resistor, together between points A and B. To find the voltage of the voltage source and the resistor value you consider two different load situations. 1. No load at all, like it's drawn. The circuit consists of voltage source, R1, R2 and R5.
capacitor - Rectifier ripple voltage formula - Electrical Engineering ...
So I thought the ripple voltage was approximated by the formula Vr,pp = Vp / fRC for a half-wave rectifier, and Vp/2fRC for a full-wave. Yet simulation shows about 55% of this value. So is the
voltage - Easy way to figure out a LED's Vf in order to pick an ...
Jun 1, 2015 · Now you'll notice that by driving the applied voltage up we have driven the voltage across the resistor up, and that in turn causes the total power dissipated by the resistor to go up considerably. While 217mW is technically under the 250mW a quarter-Watt resistor can handle, it will get HOT. I'd suggest moving to a 1/2W resistor.