Household Appliance Circuit Arrangement
First Claim
1. An electric household appliance comprising a low-voltage capacitive power supply connected to an electrical power network and designed to generate a low-voltage, wherein said low-voltage capacitive power supply comprise a capacitive dividing circuit comprising a first and second input terminal connected to a first and second power line at a first and second predetermined potential respectively;
- a first output terminal adapted to generate said low-voltage enabling signal;
first and second charge-accumulating means connected between said first and second input terminal; and
at least one voltage limiter connected parallel to said second charge-accumulating means and designed to switch from a nonconducting to a conducting state when subjected to a voltage above a predetermined breakdown voltage;
said first and second charge-accumulating means being so designed that the voltage at the terminals of said second charge-accumulating means his below said predetermined breakdown voltage.
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Accused Products
Abstract
An electric household appliance has a low-voltage capacitive power means (10) connected to an electrical power network (3) and is designed to generate a low-voltage (S2,V2). The low-voltage capacitive power means (10) comprise a capacitive dividing circuit (28) comprising a first (30) and second input terminal (31) connected to a first and second power line (3) at a first (V1) and second (VREF) predetermined potential respectively; a first output terminal (32) adapted to generate said low-voltage enabling signal (S2); first (37) and second charge-accumulating means (38) connected between said first and second input terminal; and at least one voltage limiter (40) connected parallel to said second charge-accumulating means (38) and designed to switch from a non-conducting to a conducting state when subjected to a voltage above a predetermined breakdown voltage (VZ). The first (37) and second charge-accumulating means (38) are designed so that the voltage (VC2) at the terminals of said second charge-accumulating means (38) is below the predetermined breakdown voltage (VZ).
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Citations
15 Claims
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1. An electric household appliance comprising a low-voltage capacitive power supply connected to an electrical power network and designed to generate a low-voltage, wherein said low-voltage capacitive power supply comprise a capacitive dividing circuit comprising a first and second input terminal connected to a first and second power line at a first and second predetermined potential respectively;
- a first output terminal adapted to generate said low-voltage enabling signal;
first and second charge-accumulating means connected between said first and second input terminal; and
at least one voltage limiter connected parallel to said second charge-accumulating means and designed to switch from a nonconducting to a conducting state when subjected to a voltage above a predetermined breakdown voltage;
said first and second charge-accumulating means being so designed that the voltage at the terminals of said second charge-accumulating means his below said predetermined breakdown voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a first output terminal adapted to generate said low-voltage enabling signal;
Specification