I'm trying to size a set of resistors for charging a capacitor. The source is a 500V 60Hz AC supply. The initial instantaneous current is 0.5A sizing the resistors at 125W each. That seems too high because the current decays very rapidly. If the resistors only need charged every 3 mi...
How to get InverseMatrix for large size Matrix in Mathematica? An English equivalent of the Japanese idiom "be tied with a red string (of destiny)" Confused with "per āera" in "Familia Romana" If my character has the same name as a character from another stor...
Power rating: 0.1 to 1 watt Pros: Wide resistance range, low cost Cons: Lower precision and stability Request PCB Manufacturing & Assembly Quote PCB Resistor Sizes Resistors come in a variety of physical sizes. The major size standards are: ...
②Note: during testing, especially when measuring resistances with resistance values above tens of kΩ, do not touch the conductive parts of the pen and resistors; the detected resistance is soldered from the circuit, at least one head must be soldered to avoid other components in the circuit...
What we know: "Ohm's law", "current limiting", "heat / power limit", "material difference in conductivity / amount of energy required to move the electron".But: is the resistor a way to radiate overflow of energy as heat (wasted energy) - and that's how books are explaining it. ...
or SMDs. To compensate for the smaller space, SMD resistors are given a numerical-based code. If you take a look at a modern circuit board, you’ll notice that SMD resistors are also all the same size. This helps to standardize the manufacturing process with those rapid-fire pick-and-pla...
But I would like to know the WATT values for my resistors since my goal is to use everthing SMD but the triac. I need some info of how to calculate the resistance/voltage across some elements of the circuit. Any ideas? Thank you in advance....
Pull-up and pull-down resistors are required in many logic systems to provide a valid logic state when a wire connected to a CMOS input is unused. The short answer is, if you aren't sure, use a 10kΩ resistor and adjust if you have problems. The long answer follows. ...
While the circuit would work in theory, such an oscillator proves to be very unreliable without some modifications. Instead of connecting the gates directly to the LC tank, it’d be wiser to instead leave them normally pulled up via a pair of resistors, where the LC tank would alternately ...
This project shows you how to build your own test probes for oscilloscopes or other instruments using household items.The only "electronic parts" needed are a piece of 50-75Ω coaxial cable with a BNC connector at one end and two small resistors. You will also need an alligator clip and ...