Semiconductor integrated circuit device

Details Semiconductor integrated circuit device Semiconductor integrated circuit device

2011-08-02

2011-08-02

Fureman, Jared J (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Plural switches

C307S010100, C307S066000

Reexamination Certificate

active

07989988

ABSTRACT:
In a power phase period when in normal operation, switch portions SW2H and SW2L and switch portions SW3H and SW3L are turned ON, respectively, and switch portions SW1H and SW1L are turned OFF. And floating power supply is provided from an electrostatic capacitance element CS to buses A and B, a floating control circuit4, a transmitter circuit5, and a receiver circuit6, respectively. In a data phase period, the switch portions SW1H and SW1L are turned ON, and the switch portions SW2H, SW2L, SW3H, and SW3L are turned OFF. By that manner, the electrostatic capacitance element CS is charged by the power supply of a battery B, and an electrostatic capacitance element CH provides the floating power supply to the floating control circuit4, the transmitter circuit5, and the receiver circuit6, respectively. By this manner, a floating switch unit7in which the number of the switch portions is considerably reduced can be configured.

REFERENCES:
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Safe-by-Wire Plus, Automotive Safety Restraints Bus (“ASRB”), 2.0 Specification Promoters Agreement, 2004.
ISO/IEC DIS 22896, Road vehicles—Deployment and sensor bus for passenger safety systems, 2005.

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