| 摘要 |
<p>A touch controlled electronic switching circuit in which the body capacitance (42) of the person actuating the device by touching a touch-plate (12) is coupled in series with current limiting resistors (44, 46) and a capacitor (47) with the junction (52) thereof coupled to a logic circuit (80,90) which responds thereto to provide a direct current control signal. The logic circuit (80,90) has an output (23) coupled to the gate terminal of a triac (20) coupled to a load (26) for selectively applying current to the load (26) during both half-cycles of each cycle of the line voltage supplied to the triac (20) and load (26).</p> |
