Power supply system for a packet-switched radio transmitter

Details Power supply system for a packet-switched radio transmitter Power supply system for a packet-switched radio transmitter

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.

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"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.

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