Power transmission control apparatus |
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| 申请号 | JP11390085 | 申请日 | 1985-05-27 | 公开(公告)号 | JPS61271806A | 公开(公告)日 | 1986-12-02 |
| 申请人 | Akira Matsushita; Nippon Denzai Kogyo Kenkyusho:Kk; | 发明人 | NAKANO KATSUYOSHI; MATSUSHITA AKIRA; | ||||
| 摘要 | PURPOSE:To enable to transmit information signals, their clock signal, etc., from a stationary section in a non-contacting state, by providing a means for transmitting power to loads and circuits of receiving modules and for controlling them, through electromagnetic induction by electromagnetic waves over the commercial frequency being oscillated from an active module. CONSTITUTION:After parallel data SD of an information signal which is required to transmit from a stationary section A to a moving section B is converted into a serial form by a P/S (parallel-serial) converting circuit 9, it is input into a F/S (frequency shift) modulation circuit 11 which is driven by an oscillation circuit 10 which oscillates at a frequency BR1 integer times the Baud rate clock, resulting in a F/S modulated wave corresponding to the parallel data SD. However, the frequency is not appropriate for the transmission owing to the low efficiency, so the frequency is raised by a frequency multiplier 12. The waves is then power-amplified by a power amplifier 13, and is applied to a transmission coil 3 wound around a magnetic core 2 of the stationary section. Through electromagnetic induction between the magnetic core 4 of the moving section and the magnetic core 2 of the stationary section, power having the raised frequency may be induced in the receiving coil 5 wound on the magnetic core 4. | ||||||
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