FET Circuit for converting TTL to FET logic levels

Details FET Circuit for converting TTL to FET logic levels FET Circuit for converting TTL to FET logic levels

1980-08-11

1983-09-27

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307264, H03K 19092, H03K 19094

Patent

active

044069561

ABSTRACT:
This invention relates to a field effect transistor level converter for converting bipolar transistor logic levels to field effect transistor logic levels. First and second field effect transistors have their source and gate electrodes connected in common. The bipolar input signal is received at the common source connection while the gate electrodes receive a fixed reference potential that is equal to the threshold voltage VT plus the lowest possible high binary level of the bipolar input logic. The drain electrode of the first field effect transistor is connected to the output terminal of the level converter and the source electrode of a source follower transistor. The drain electrode of the second transistor is connected to a load device and to the gate of the source follower transistor which has its drain electrode connected to VH. This arrangement produces at the first output terminal a potential swing of approximately 0 to 7 volts in response to an input signal in the range of 0.8 to 2.0 volts.

REFERENCES:
patent: 3708689 (1973-01-01), Lattin
patent: 3710271 (1973-01-01), Putnam
patent: 3906254 (1975-09-01), Lane et al.
patent: 4023050 (1977-05-01), Fox et al.
patent: 4129794 (1978-12-01), Dickson et al.
patent: 4258272 (1981-03-01), Huang
patent: 4307308 (1981-12-01), Sano
IEEE Jrnl. of Solid State Circuits, vol. SC-13, No. 3, Jun. 1978; pp. 333-338, E. Arai et al.

Affiliated with

Also associated with

Rating

FET Circuit for converting TTL to FET logic levels does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with FET Circuit for converting TTL to FET logic levels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FET Circuit for converting TTL to FET logic levels will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2131493