Granted 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.