Electrical circuit device
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United States of America Patent
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N/A
Issued Date -
Oct 6, 2005
app pub date -
Mar 29, 2005
filing date -
Mar 31, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An electrical circuit device includes a controller, drivers, and a case. The controller inputs driving signals to the drivers. The drivers have multiple semiconductor relays that turn on and off power supply to electrical loads based on the driving signals. The drivers are housed in the case. The driving signals are transmitted from the controller to the drivers via serial communication. With this configuration, the number of communication lines and the communication connectors and the size of the electrical circuit device are small with respect to parallel communication. When another driver is added, only software modification of the controller and addition of a serial communication line between the controller and the driver are required. Thus, the electrical circuit device can be easily modified for different models of vehicles.
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