| 摘要 |
<p>The invention comprises an electronic circuit incorporating a power supply unit FA to the supply network with a transformer, rectifier bridge, control circuit and filter, supplying an auxiliary microprocessor MP as calendar clock and an independently operating central microprocessor, with a digital type alphanumeric screen P included in the equipment, the central microprocessor MC being connected to the auxiliary microprocessor MP with a plurality of connections to the relays RL1 and RL2 for activating or deactivating a plurality of solenoids for rate changes, including the screen P, a photocell CF for energizing the circuit with a light beam, supplying the data from the memory unit M, for displaying the data. Of use in changing electricity rates.</p> |
