Bleeder Resistor Power Rating

Since the voltage is falling i reckon that the resistor would have been about a 5 watt rating. Yeah 220k will be fine.

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In electronics a bleeder resistor is a resistor connected in parallel with the output of a high voltage power supply circuit for the purpose of discharging the electric charge stored in the power supplys filter capacitors when the equipment is turned off for safety reasons.

Bleeder resistor power rating. See hv switching use something on the order of 13mohm as permanent bleeder thatll give you around 5 minutes discharge if anything goes wrong with the switched bleeder. Google found an older qrz discussion about this subject for me. Bleeder resistor helps to achieve.

Therefore we need a resistor so that the capacitor can discharge properly after switching off the power supply. Any way ier so 60010000006 eip so 60000636 the peak power would be 36 watts. It is usually used in unregulated direct current dc power suppliesthe bleeder resistor may be eliminated in regulated low voltage power supplies and is not needed in linear voltage regulators or switch mode power supplies with fast duty cycle.

Power rating it was but i never managed to damage it even putting it across a live circuit occasionally. Bleeder resistors are typically used to equalize the voltage across filter caps that are connected in series. It eliminates the possibility of a leftover charge causing electric shock if people handle or service the equipment in.

However from a manufacturers point of view if there are no series caps in an amps power supply adding that one bleeder resistor represents money out the door to them. Although power rating is unimportant the resistors themselves should withstand a high pulse dvdt without breaking down for which low inductance carbon composition types are best suited. Ratings to 30kv non contaminating for use inside oil filled capacitors resistors for high voltage applications high voltage bleeders figure 1 switched bleed resistor figure 2 permanent bleed resistor figure 3 exponential discharge bleed resistors are used to discharge capacitors to safe voltage levels after power is removed.

Thus a resistor of standard value is connected in parallel with the capacitor which helps in discharging after the curtailment of power. Thus if a resistor has a power rating of 14 watts 14 watts is the maximum amount of power that should be fed into the resistor. The value of 10 kohms and up for static discharge bleeder antenna resistor makes sense but the power rating from 2 w to 10 w does not.

Functions of bleeder resistor effective voltage regulation. A bleeder resistor is an electrical component that absorbs electrical power in unregulated power supply outputs to improve voltage regulation. The power rating of a resistor is the specification given with a resistor that serves to tell the maximum amount of power that the resistor can withstand.

You might get away with peak power ratings for the resistor instead of continuous power ratings here.