Patents

P19:
A/D converter of voltages UsinFi and UcosFi into digital value of the phase-angle Fi, L.S. Czarnecki, Polish Patent No. 135 726, 1988.
P18:
Converter of the optimal compensating capacitance in a nonsinusoidal system into a DC voltage, L.S. Czarnecki, Polish Patent No. 134 452, 1987.
P17:
A method of conductance for harmonic frequency conversion into a DC voltage”, L.S. Czarnecki, Polish Patent No. 134 451, 1987.
P16:
Method of conversion of the impedance phase angle for harmonic frequencies into a pair of DC voltages proportional to the sine and cosine functions of this angle, L.S. Czarnecki, Polish Patent No. 132 362, 1987.
P15:
Method of conversion of the impedance phase angle for harmonic frequencies into a pair of DC voltages proportional to the sine and cosine functions of this angle, L.S. Czarnecki, Polish Patent No. 132 325, 1986.
P14:
Converter of reactive current RMS value in nonsinusoidal system into a DC voltage”, L.S. Czarnecki, Polish Patent No. 131 394, 1987.
P13:
Analyzer of reactive power in nonsinusoidal systems, L.S. Czarnecki, Polish Patent No. 131 574, 1987.
P12:
Analyzer of active power in nonsinusoidal systems, L.S. Czarnecki, Polish Patent No. 131 575, 1987.
P11:
Converter of reactive current RMS value in nonsinusoidal system into a DC voltage, L.S. Czarnecki, Polish Patent No. 131 383, 1986.
P10:
A method of susceptance for harmonic frequency conversion into DC voltage”, L.S. Czarnecki, Polish Patent No. 132 190, 1986.
P9:
A method of reactive power in nonsinusoidal systems conversion into a DC voltage, L.S. Czarnecki, Polish Patent No. 127 416, 1985.
P8:
A circuit that transforms input voltage into Hilbert Transform, L.S.Czarnecki, Polish Patent No. 119 260, 1983.
P7:
A circuit that transforms input voltage into Hilbert Transform, L.S.Czarnecki, Polish Patent No. 119 264, 1983.
P6:
A circuit for shifting harmonic phase by pI/2, L.S. Czarnecki, Polish Patent No. 119 477, 1983.
P5:
Low-pass active filter, L.S. Czarnecki, Polish Patent No. 108 791, 1981.
P4:
A circuit for reactance function realization, L.S. Czarnecki, Polish Patent No. 105 403, 1980.
P3:
Reactive power meter for nonsinusoidal systems, L.S. Czarnecki, Polish Patent No. 85 524, 1977.
P2:
Reactive power meter for nonsinusoidal systems, L.S. Czarnecki, Polish Patent No. 75 834, 1975.
P1:
A method of calibration of a harmonic analyzer, L.S. Czarnecki, Polish Patent No. 56 951, 1969.

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