Oscillators – Solid state active element oscillator – Transistors
Patent
1980-03-12
1981-11-17
Grimm, Siegfried H.
Oscillators
Solid state active element oscillator
Transistors
331143, H03K 3354
Patent
active
043014275
ABSTRACT:
A Schmitt trigger astable multivibrator circuit includes a first inverter, a second inverter whose input terminal is connected to the output terminal of the first inverter, a third inverter which is constituted by a first P-channel transistor and a first N-channel transistor serially connected and whose input and output terminals are respectively connected to the output and input terminals of the second inverter. The Schmitt trigger astable multivibrator circuit further includes a second P-channel transistor connected between a positive power supply terminal and the first P-channel transistor, and a second N-channel transistor connected between a ground terminal and the first N-channel transistor, and an input signal supplied to the first inverter is also applied to the gates of the second P-channel and N-channel transistors. The astable multivibrator also includes a time constant circuit, activated in response to the second inverter's output, which connects to the first inverter's input.
REFERENCES:
patent: T955006 (1977-02-01), Cavaliere et al.
patent: 3356858 (1967-12-01), Wanlass
patent: 3737673 (1973-06-01), Suzuki
patent: 3775693 (1973-11-01), Proebsting
patent: 3778782 (1973-12-01), Kitagawa
patent: 3904888 (1975-09-01), Griffin et al.
patent: 4023122 (1977-05-01), Oura
patent: 4115748 (1978-09-01), Kubo et al.
patent: 4146849 (1979-03-01), Satou
McMos Handbook, Motorola Inc., pp. 8-22 to 8-29.
RCA Catalog, "Products CD4093B", pp. 586-588.
Motorola Catalog, "Products MC14093B", pp. 5-152 to 5-154.
Motorola Catalog, "Products MC14584B", pp. 5-489 to 5-491.
Iida Tetsuya
Suzuki Yasoji
Grimm Siegfried H.
Tokyo Shibaura Denki Kabushiki Kaisha
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