H - Electricity – 03 – H
Patent
H - Electricity
03
H
333/53
H03H 11/12 (2006.01) H03L 7/08 (2006.01) H04B 1/26 (2006.01)
Patent
CA 1241711
ABSTRACT OF THE DISCLOSURE A low-pass filter circuit comprises a low-pass filter including a series connection of first and second resistors having one end connected to an input terminal and a capacitor connected between the other end of the series connection and the ground, a phase inverting amplifier having an input connected to the other end of the series connection, a feedback circuit connected between the input and output of the phase inverting amplifier and having a predetermined time constant, and a diode connected in parallel with the first resistor. The diode may be connected with its cathode connected to the input terminal, so that the electrical charge of the feedback circuit may be discharged. Alternatively, the diode may be connected with its anode connected to the input terminal, so that the electrical charge may be charged to the feedback circuit. Alternatively, two diodes may be connected in parallel with the first resistor, with the cathode of one of the diodes connected to the input terminal and the anode of the other of the diodes connected to the input terminal.
482319
G. Ronald Bell & Associates
Mitsubishi Denki Kabushiki Kaisha
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