Personal-care apparatus comprising a capacitive on/off switch

Details Personal-care apparatus comprising a capacitive on/off switch Personal-care apparatus comprising a capacitive on/off switch

1992-10-13

1995-09-26

Pellinen, A. D.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307326, 327517, 340573, 200 6185, H01H 906, H01H 8300

Patent

active

054536448

ABSTRACT:
A personal-care apparatus comprises a load (LD) and a switch (SW), which load (LD) and which switch (SW) are coupled in series between a first (1) and a second (2) supply terminal for receiving an alternating voltage, the personal-care apparatus further comprising a rectifying circuit (RC) for converting the alternating voltage into a direct voltage, and a safety circuit (SC), which is coupled between a third (3) and a fourth (4) supply terminal for receiving the direct voltage and which comprises a capacitive sensor (CS) for the detection of the presence of a part of a human body in the proximity of the personal-care apparatus, the safety circuit being adapted to control the switch (SW) in response to said detection.

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