Power supply start-up circuit

摘要: A power supply start-up circuit for apparatus having a storage capacitor comprises bistable switch with trigger terminal and connected between one of DC source the capacitor, resistor across switch, to lead, diode capacitor. The lead on is biased by which charged through voltage When uncharged at start-up, off charging current from storager passes permitting "soft" start, i.e., gradual Thereafter takes place when differential capacitors.