| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-common ground communication circuit capable of establishing a communication path between bus blocks which do not have a common ground voltage. SOLUTION: The communication circuit 100 is used for transmitting data between a plurality of devices which have non-common ground voltages. The communication circuit comprises a plurality of transmitting input nodes 162 coupled to the devices, respectively, a transmitting current path; a plurality of receiving output nodes 122 coupled to the devices, respectively and a receiving current path. The transmitting current path is coupled to the transmitting input nodes. The current through the transmitting current path is varied according to the input signal of the transmitting input nodes. The receiving current path is coupled to the receiving output nodes. The current through the receiving current path is varied according to the current of the transmitting current path such that data is transmitted from the transmitting input nodes to the receiving output nodes. COPYRIGHT: (C)2006,JPO&NCIPI |
