Schmitt trigger

Details Schmitt trigger Schmitt trigger

1979-05-01

1981-10-27

Anagnos, Larry N.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307290, H03K 3295, H03K 3356

Patent

active

042975964

ABSTRACT:
A compensated Schmitt trigger includes first and second balanced current paths between V.sub.DD and ground for establishing the Schmitt trigger's low and high output respectively. The first path includes a first small enhancement device, a second depletion device and a third enhancement device. The second path includes a fourth enchancement device and said second and third devices. Thus, each path includes two enhancement devices and one depletion device. Process variations in each path will tend to track stabilizing the difference between the low and high switching voltages.

REFERENCES:
patent: 3612908 (1971-10-01), Heimbigner
patent: 3873856 (1975-03-01), Gerlach et al.
patent: 3882331 (1975-05-01), Sasaki
patent: 3904888 (1975-09-01), Griffin et al.
patent: 3984703 (1976-10-01), Jorgensen
patent: 4048524 (1977-09-01), Laugesen et al.
patent: 4063119 (1977-12-01), Odell et al.
patent: 4071784 (1978-01-01), Maeder et al.
patent: 4097772 (1978-06-01), Carter

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