Current inrush limiting apparatus

Details Current inrush limiting apparatus Current inrush limiting apparatus

1980-09-04

1982-05-04

Shoop, William M.

Electricity: power supply or regulation systems

Input level responsive

Phase controlled switching using electronic tube or a three...

323321, 363 49, G05F 500

Patent

active

043284590

ABSTRACT:
Current inrush limiting apparatus is disclosed including a power supply circuit (32) which regulates the transmission of power from a source (12) to a load (14). A soft start control (36) controls the power supply to prevent excessive current inrush to the load by causing it to apply power to the load gradually when the power first comes on. A dropout timer (38) monitors the power signal and rapidly resets the soft start control circuit if a power dropout exceeds a predetermined minimum duration. This ensures that excessive current inrush also does not occur following brief power dropouts.

REFERENCES:
patent: 3363143 (1968-01-01), Cavanaugh
patent: 3456133 (1969-07-01), Warren
patent: 3500174 (1970-03-01), Ellerbeck
patent: 3506907 (1970-04-01), Porterfield et al.
patent: 3562621 (1971-02-01), Schaefer
patent: 3617864 (1971-11-01), Senger
patent: 3787756 (1974-01-01), Berger
patent: 3935511 (1976-01-01), Boulanger et al.
patent: 3935527 (1976-01-01), Michelet et al.
patent: 3996506 (1976-12-01), Kichak
patent: 4207516 (1980-06-01), Babcock

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