Detector elements of the frame with the scheme REGULATION

摘要

1. A circuit device (100, 1100, 1200, 1300) comprising a first capacitor (110), a second capacitor (120) and a third capacitor (130), wherein: - said first electrode (111, 121, 131) of each of the capacitors (110 , 120, 130) connected to the first node (101) of the circuit, - a circuit arrangement (100, 1100, 1200, 1300) arranged to supply to the first capacitor (110) of the first voltage-dependent time, the second capacitor (120) - a second time-dependent voltage on the third capacitor (130), - the third time-dependent voltage, - a first voltage and a second voltage clocked I antiphase, - the second voltage and third voltage are clocked in phase, - a circuit arrangement (100, 1100, 1200, 1300) comprises an amplifier (200), a synchronous demodulator (210) and a comparator (220), - Inputs (201, 202) of the amplifier ( 200) connected to the first node (101) of the circuit and with a contact (103) of the mass, - a synchronous demodulator (210) is provided in order to synchronously with tact first voltage feeding the output signal of the amplifier (200) alternately to two inputs (221, 222) a comparator (220), - a circuit arrangement (100, 1100, 1200, 1300) adapted to generate control parameter in dependence imosti from the value at the output of the comparator (220), - a circuit arrangement (100, 1100, 1200, 1300) is also operable to change the amplitude values ​​of the first voltage and the third voltage and / or the amplitude value of the second voltage depending on the regulatory parametra.2. . The circuit device (100, 1100, 1200, 1300) according to claim 1, comprising a fourth capacitor (140), wherein: - said first electrode (141) of the fourth capacitor (140) connected to the first node (101) of the circuit, - a circuit arrangement (100 , 1100, 1200, 1300) is adapted to supply a fourth capacitor (140) of the fourth time-dependent voltage, - a first voltage and the fourth voltage clocked sinfazno.3. The circuit device (100, 1200) according to claim 1, comprising: -. Adjustable