Single-pin tracking/soft-start function with timer control

Details Single-pin tracking/soft-start function with timer control Single-pin tracking/soft-start function with timer control

2007-07-24

2007-07-24

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S274000, C323S275000

Reexamination Certificate

active

11288884

ABSTRACT:
A voltage regulator includes a voltage divider connected between a soft-start pin and the voltage regulator's error amplifier. The voltage divider has the same divider ratio as that of the voltage regulator's feedback voltage divider, which is used to divide the regulated output voltage fed back to the error amplifier. To facilitate soft-start operations, an external, user-supplied capacitor is connected to the soft-start pin. To facilitate voltage tracking operations, a predetermined master supply voltage is applied to the soft-start pin.

REFERENCES:
patent: 4716510 (1987-12-01), Pace et al.
patent: 6091234 (2000-07-01), Kitagawa
patent: 6147477 (2000-11-01), Saeki et al.
patent: 6313615 (2001-11-01), Fayneh et al.
patent: 6356061 (2002-03-01), Perillo
patent: 7038412 (2006-05-01), Karwath et al.
patent: 2005/0007167 (2005-01-01), Tange

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