Generally, Switched Mode Power Supply Unit (SMPS) is widely used in the PC. There are three methods to safely discharge the capacitors of the PSU. Turn off all the power supply to the PC from the mains. Unplug all the cables and wires attached to the PC. Then hold the power button for 20 secs.
There are three methods to safely discharge the capacitors of the PSU. Turn off all the power supply to the PC from the mains. Unplug all the cables and wires attached to the PC. Then hold the power button for 20 secs. When you do this, the capacitor discharges the residual current.
Unplug all the cables and wires attached to the PC. Then hold the power button for 20 secs. When you do this, the capacitor discharges the residual current. After few seconds, repeat it three times to completely drain the charges from the capacitor. Now, it is safe to get into the PC for your work.
The following step-by-step procedure outlines a safe manual discharge method: Verify power is disconnected and capacitor is isolated from the circuit. Select an appropriate discharge resistor based on capacitor voltage and capacitance. Connect the discharge resistor across the capacitor terminals using insulated probes.
Connect the discharge resistor across the capacitor terminals using insulated probes. Monitor voltage decay using a high-impedance voltmeter in parallel with the resistor. Maintain the connection until voltage drops below 50V or to the specified safe level. Short the capacitor terminals with an insulated shorting stick as a final safety measure.
Manual discharge of capacitors is a critical skill for electronics professionals. The following step-by-step procedure outlines a safe manual discharge method: Verify power is disconnected and capacitor is isolated from the circuit. Select an appropriate discharge resistor based on capacitor voltage and capacitance.