| 摘要 |
PURPOSE:To apply a loading without giving noise to other electronic equipment approaching the titled equipment by using a control circuit while the power of a microcomputer is disconnected normally or at a desired time so as to execute the loading. CONSTITUTION:Three power supplies V1-V3 are fed to a control circuit 21, the power supply V1 is in common to the power supply of a driver IC-Q2 and applied always and either of the power supplies V2, V3 is applied by using a changeover switch 22. The changeover switch 22 is thrown to supply the power supply V2 in the normal use when a signal is reproduced by a disc player or the like and thrown to supply the power supply V3 in using other electronic equipments. The loading controller is provided with a control circuit exclusive for the loading to control the loading and no oscillation clock is in use. Thus, the loading is applied without giving noise onto other nearby electronic equipments.
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