Dual resistance bus connector

Details Dual resistance bus connector Dual resistance bus connector

1990-09-04

1991-07-02

Paumen, Gary F.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Impedance insertion

307130, 307140, 439801, H02H 900

Patent

active

050290380

ABSTRACT:
A dual resistance connector system is provided to allow the replacement of power regulators in a computer system without removing power from the operating voltage bus. The new power regulator can be "hot plugged" into the voltage bus without creating a voltage drop on the bus which could lead to voltage transients and logic errors. The low resistance bus bar is augmented by a retractable high resistance contact. The high resistance contact is configured to make electrical connection with the operating voltage bus before the low resistance contact. The establishment of a high resistance circuit allows charging of output filter capacitors without creating a large voltage drop on the operating voltage bus. As installation continues, the low resistance bus bar makes contact and is held in position by a fastener. The fastener is initially held out of electrical contact by a compression spring.

REFERENCES:
IBM Technical Disclosure Bulletin, "Replacing a Power Supply Under Microprocessor Control in an Operating System", vol. 27, No. 12, May 1985, pp. 7239-7241.

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