Pulse or digital communications – Transmitters
Patent
1997-09-15
2000-08-15
Pham, Chi H.
Pulse or digital communications
Transmitters
307 31, 323282, H04L 2704, H02J 100, G05F 140
Patent
active
061047597
ABSTRACT:
An improved power supply system involves load-leveling the large transient currents drawn by a high power, low duty-cycle load application circuit by means of a high performance capacitive charge storage device, such as a super-capacitor or a network of super-capacitors. The improved power supply system allows the high power load application circuit to be driven by a limited energy power source, such as a battery or the power supplied to a PCMCIA slot by a host computer. When the input voltage source is a battery, the improved power supply system allows for a substantial increase in the battery's operational life. The inventive system is particularly useful for managing power supply requirements for miniaturized wireless transmission systems, such as two-way pagers or radio modems, which employ low duty-cycle packet-switched RF transmitters.
REFERENCES:
patent: 4433251 (1984-02-01), Banks et al.
patent: 5173855 (1992-12-01), Nielsen et al.
patent: 5229649 (1993-07-01), Nielsen et al.
patent: 5444378 (1995-08-01), Rogers
patent: 5651057 (1997-07-01), Blood et al.
patent: 5769877 (1998-06-01), Barreras et al.
patent: 5850113 (1998-12-01), Weimer et al.
"Electric Double-Layer Capacitors," vol. 2, Oct. 25, 1996 (Japan, Tokin Corp., Cat. No. EC-200E).
"Supercapacitor: User's Manual," vol. 2 (Japan, Tokin Corp.), date unknown.
"Charging Big Supercaps," Portable Design, p. 26, Mar. 1997.
Carkner Steve
Lowles Robert
Nickerson Kent
Schaaff Carl
Meyer, Esq Charles B.
Pathiyal, Esq Krishna
Pham Chi H.
Research In Motion Limited
Tran Khai
LandOfFree
Power supply system for a packet-switched radio transmitter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power supply system for a packet-switched radio transmitter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply system for a packet-switched radio transmitter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2015395