Capacitor relay

Security alarm system. switches for household devices, control sensors on the production conveyor — here only small part of scope of this capacitor relay. It can be used, for example, in the elementary household automatic equipment: sat down in a chair — the floor lamp joined, music played, earned the fan, etc. In a word, a scope of this relay the imagination, creative thought of radio fans will prompt.

the Radius of operation of the relay depends on accuracy of setup of the C1 condenser, and also from a sensor design. The author has the maximum distance to which the relay reacts, img src = "/files/radiosait/gr/s3/1071/d2b1daedbab05766ff4196d111c03193.gif" is equal 50 see to

the L1 Coil is reeled up on a multisection polystyrene framework from contours of transistor radio receivers and contains 500 rounds (250 + 250) with branch from the wire middle PEL-0,12MM. Winding — внавал. the Sensor is established to p by

perpendicular to the plane of the printed-circuit board. It represents a piece of the isolated assembly wire in length from 15 to 100 cm, or a square executed from the same wire, with the parties from 15 cm to 1м.

the C1 Condenser — such as KPK-M, the others — the K50-6 type. As the relay it is chosen RES-10, passport РС4.524.312, it is possible to apply also RES-10, passport РС4.524.303, or RES-55A, passport 0602. The VD1 diode can be excluded, as it is necessary only for circuit protection from a casual izmeneneniye of polarity of a food.

Is adjusted the capacitor relay by the C1 condenser. At first it is necessary to establish rotor С1 in the provision of the minimum capacity. thus will work the K1 relay. Then a rotor slowly turn towards increase in capacity before K1 relay switching off. The there is less than a capacity of the arranged condenser, the capacitor relay and more than a distance on which the sensor is capable to react to object is more sensitive. At setup of the condenser the case of a body and a hand with a dielectric screw-driver is necessary for holding on probably bigger removal from a payment.

V. Tabunshchikov, 353922, Novosibirsk, Dzerzhinsky Ave., 209-148 (RL 5/93)
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