Device for regulating the power in electrical apparatus...

Details Device for regulating the power in electrical apparatus... Device for regulating the power in electrical apparatus...

H - Electricity

05

B

315/31

H05B 41/392 (2006.01) H03K 3/30 (2006.01) H05B 41/16 (2006.01) H02M 7/5383 (2006.01)

Patent

CA 1170707

Abstract of the Disclosure The invention relates to a device for regulating the power in electrical apparatuses, especially fluorescent ligh- ting fittings. To each apparatus (6) is connected an inverter (1-5, 7-11; 12; 13) in which the control circuit of the oscillator transistor (l) is provided with an adjustable RC circuit (8, 9). The power of a plurality of apparatuses included in the same group can be adjusted through one pair of conductors by connecting in parallel with the RC circuit (8, 9), on one hand, the contacts of a relay (10) and, on the other hand, an opto- insulator (11) whereby the relay (10) is connected to one conductor of the pair of conductors and the opto-insulator (11) to the other conductor.

399221

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