Electronic digital logic circuitry – Function of and – or – nand – nor – or not – Bipolar and fet
Patent
1995-12-08
1997-11-18
Hudspeth, David R.
Electronic digital logic circuitry
Function of and, or, nand, nor, or not
Bipolar and fet
326 84, 326115, H03K 1901
Patent
active
056891970
ABSTRACT:
A current switch apparatus includes a bipolar transistor controlled by a reference voltage, a MOS transistor controlled by a logic signal, and a constant current source connected to the bipolar transistor and the MOS transistor.
REFERENCES:
patent: 4829200 (1989-05-01), Downey
patent: 5006730 (1991-04-01), Davis
patent: 5430398 (1995-07-01), Cooper et al.
Hudspeth David R.
NEC Corporation
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