Ali Sajjad
New Member
I am using a power supply which employes a full-wave rectifier followed by a filter capacitor (100uF). This circuit gives me a dc volatge level equal to the mains peak voltage( we have 220 Vac at 50hz). When the power is turned off, the filter capacitor remains charged to the high voltage level because the circuit which is been powered by this supply is of very high impedance and draws negligible current. I need some suggestion to design a circuit which discharges the filter capacitor when the power is turned off within a short time and not causing some spark across the capacitor. I m not in favour of using just a resistor across the capacitor. Any suggestion, idea ??
Thanks everybody in advance.
- Ali Sajjad
Thanks everybody in advance.
- Ali Sajjad