Oscillators – Solid state active element oscillator – Transistors
Patent
1994-06-08
1995-09-12
Pascal, Robert J.
Oscillators
Solid state active element oscillator
Transistors
331116FE, H03B 536
Patent
active
054500427
ABSTRACT:
A crystal oscillator circuit that provides a low distortion clocking signal. The oscillator circuit incorporates an inverter circuit in combination with a diode connected transmission gate circuit. The transmission gate circuit includes two MOSFETs connected between input and output nodes of the inverter circuit. When the current at the input node goes high and the current at the output node goes low, one of the two transmission gate circuit MOSFETs will begin conducting such that current at the input node will be transferred to the output node, thus decreasing the voltage difference between the two nodes. Likewise, when the current at the output node goes high and the current at the input node goes low, the other MOSFET of the transmission gate circuit will begin to conduct such that current is transferred from the output node to the input node, again reducing the voltage difference between the input and output node. Additionally, the transmission gate circuit provides the impedance necessary to generate oscillation of the oscillator circuit at start-up to regulate the output voltage swing of the oscillator circuit.
REFERENCES:
patent: 3889211 (1975-06-01), Morozumi
patent: 4912435 (1990-03-01), Williams et al.
A. B. Grebene, Bipolar MOS Analog Integrated Circuit Design, Wiley-Interscience, pp. 551-555 (1984).
Good Brian K.
Zarabadi Seyed R.
Delco Electronics Corporation
Funke Jimmy L.
Pascal Robert J.
Vu David H.
LandOfFree
Low distortion crystal oscillator circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low distortion crystal oscillator circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low distortion crystal oscillator circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-407934