Current monitors with independently adjustable dual level curren

Details Current monitors with independently adjustable dual level curren Current monitors with independently adjustable dual level curren

1999-02-23

2000-10-03

Cunningham, Terry D.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

G05F 110, G05F 302

Patent

active

061278823

ABSTRACT:
Current sensing circuits having independently adjustable dual-level trip thresholds for use in hot swap controllers, solid state circuit breakers and other current sensing circuits. The dual-level trip threshold is user-programmable to provide one current level for power-up conditions and another current level for normal operation. The two separate thresholds are also useful during normal operation to monitor both the steady state current and to set a limit on the upper current which should never be exceeded. Various features and alternate embodiments are disclosed.

REFERENCES:
patent: 4398252 (1983-08-01), Frait
patent: 5617046 (1997-04-01), Palara et al.
patent: 5668493 (1997-09-01), Nelson et al.
Lenk, Ron, Current Limit Protects Power Bus, Dec. 18, 1997, p. 109, EDN Electrical Design News, Newton, MA.
McGoldrick, Paul, Controller IC Simplifies Hot-Swapping of Boards, Jun. 10, 1996, pp. 161-162, Electronic Design, Cleveland, OH.
In-Rush Current Limit MOSFET Driver, Apr. 5, 1999, p. 1-9, Vishay Siliconix.
Programmable Hot Swap Power Manager, Mar. 1999, p. 1-6, Unitrode.

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