| 摘要 |
PROBLEM TO BE SOLVED: To provide a power transmitter for separating large analog current from a weak analog signal. SOLUTION: This power transmitter includes: a resonance capacitor C2 forming a series resonance circuit together with a primary coil CL1; a first and a second power transmitter drivers DR1, DR2 for driving the primary coil from both edge sides of the primary coil; and a control IC 100 for outputting a driver control signal to the first and second power transmitter drives on a board 490. In the control IC, an output terminal for a driver control signal to the first power transmitter driver is placed on the first edge SD1, an output terminal for a driver control signal to the second power transmitter driver is placed on the second edge SD2, and an input terminal in which an either signal wave form of a coil connection terminal is input through waveform detecting wiring patterns 250 to 252 is placed on the third edge SD3 respectively. The resonance capacitor and the first/second power transmitter drivers are placed between the first board edge 490A in parallel to the first edge of the control IC and the control IC, and the waveform detecting wiring patterns are extended through an area between the second board edge 490B and an extended line S1 formed by extending the third edge of the control IC to be connected to the either of the coil connection terminals. COPYRIGHT: (C)2009,JPO&INPIT
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