Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Negative resistance type
Patent
1994-05-02
1996-07-16
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Negative resistance type
327397, 327209, 326135, H03K 1902
Patent
active
055370764
ABSTRACT:
A new negative resistance circuit comprises a first N-channel enhancement FET (E-FET), an N-channel depletion FET as a load element connected to the first N-channel E-FET to form a series branch connected between negative resistance ports, and a second N-channel E-FET having source-drain path parallel to the series branch. The gate of the second N-channel E-FET is connected to the connection node between the load element and the first E-FET, while the gate electrode of the first E-FET is connected to a control port for controlling current-voltage characteristic between the negative resistance ports. The negative resistance circuit can be used in an inverter to enable the inverter to have a hysteretic function or a multivalued logic function.
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patent: 4575859 (1986-03-01), Ollendick
patent: 4682051 (1987-07-01), Arakawa
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patent: 5281862 (1994-01-01), Ma
Sekine et al.; "Multistable Circuit Using .LAMBDA.-Shaped Negative Resistance Devices and Its Application to Frequency Divider"; The Transactions of The Institute of Electronics, Information and Communication Engineers, vol. J68-C, pp. 43-50. Jan., 1985.
Callahan Timothy P.
Kim Jung Ho
NEC Corporation
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