Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1996-09-09
1998-12-08
Hecker, Stuart N.
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
363 21, G05F 140
Patent
active
058475532
ABSTRACT:
An integrated circuit card, such as PC Card, is provided in which a step-down converter in the form of a switching regulator provides a stable operating voltage at increased current beyond what is normally available from a single source. In particular, a quiet and stable power supply is obtained by modifying the standard configuration of a switching regulator such that the catch diode, or free-wheeling diode, instead of being connected to ground at the non-blocking terminal, is connected to a primary voltage source approximating the desired output voltage. If the desired output voltage is 5V, for example, the catch diode may be connected to Vcc supplied by a PC Card slot, which nominally supplies 5V. The block terminal of the catch diode is connected through the switch of the switching regulator to a higher, supplementary, voltage source, e.g. Vpp=12V in the case of a PC Card slot. During operation of the integrated circuit card at lower power levels, the primary voltage source is able to supply substantially all of the required power, such that the switch of the switching regulator may remain predominantly open, minimizing switching noise. During operation of the integrated circuit card at higher power levels, the switching regulator boosts the output voltage just enough to compensate for voltage droop. The integrated circuit card is therefore supplied with a stable, low-noise source of power.
REFERENCES:
patent: 3629622 (1971-12-01), Denenberg
patent: 4680674 (1987-07-01), Moore
patent: 4731719 (1988-03-01), Nelson
patent: 5144222 (1992-09-01), Herbert
patent: 5201066 (1993-04-01), Kim
Beaudoin J. F. Denis
Funk Gregory John
Hecker Stuart N.
Sierra Wireless Inc.
LandOfFree
Current booster for PC card does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Current booster for PC card, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current booster for PC card will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-181566