GeneralG7A01
What is the function of a power supply bleeder resistor?
B
Answer
Practical circuits
Type
A
It acts as a fuse for excess voltage
B
It discharges the filter capacitors when power is removed
C
It removes shock hazards from the induction coils
D
It eliminates ground loop current
Answer Notes
A bleeder resistor is a high-value resistor placed in parallel with the output of a high-voltage power supply. Its primary safety function is to slowly "bleed" off the residual charge stored in large filter capacitors after the equipment is turned off or unplugged.
Without this component, filter capacitors can hold lethal high-voltage charges for a long time, posing a severe shock hazard to anyone opening the case. It does not act as a voltage fuse or eliminate ground loops, which are entirely unrelated to capacitor discharge.
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Which of these connector types is commonly used for low frequency or dc signal connections to a transceiver?
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Which of the following components are used in a power supply filter network?