Semiconductor power switch system

Details Semiconductor power switch system Semiconductor power switch system

1995-09-13

1997-09-30

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307125, 307140, H01H 4700

Patent

active

056729170

ABSTRACT:
A semiconductor power switch system having a control portion and at least one semiconductor power switch unit (PSU) having a self-diagnosis function to simplify the connection lines between the control portion and the PSU. In the PSU, a diagnosing terminal for transmitting an abnormality signal is, by a connection line in the outer portion, connected to an input terminal for receiving a control signal so that the control signal from the control portion to the PSU and the abnormality signal from the PSU to the control portion are communicated through one bidirectional signal transmission line. That is, if an abnormality has taken place, a transistor is turned on so that the level of the bidirectional signal transmission line is fixed to the level of the abnormality signal through the diagnosing terminal and the connection line.

REFERENCES:
patent: 5391932 (1995-02-01), Small et al.
patent: 5510950 (1996-04-01), Bills et al.
L. Lorenz; "Neue Generation von Leistungshalbleiter-Bauelementen".
Claus Reuber; "Effizient Kombinierte Prozesse"; (Elektronik Journal, Jan. 1993, pp. 36-40).

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