| 摘要 |
The circuit is for turning on/off on time the power supplied to the home electical appliances. The reservation time is set to a RAM (3-4) address through a keyboard (4). A timer (2) provides the present time to a displayer (1) and a time comparing register (3-2) through a present time saving register (3-1). The register (3-2) compares the present time with the reserved time at the RAM. If the compared time is the switching-on time, a decoder (5) turns on the power. The RAM can store a number of reservation time in its addresses.
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