Input circuit

Details Input circuit Input circuit

1987-03-20

1989-01-17

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307446, 307570, 307264, H03K 19097, H03K 19086

Patent

active

047989815

ABSTRACT:
An input circuit is disclosed, which can be driven by a single power supply, and which can convert an ECL-level input signal falling to a negative voltage into a CMOS-level signal rising to a positive voltage, and can then supply this CMOS-level signal to an inner circuit. The input circuit comprises a transistor, a bias circuit, and a current-to-voltage converter. The emitter of the transistor is coupled to an input terminal for receiving a signal of a negative potential. The bias circuit applies a negative bias voltage to the base of the transistor. The current-to-voltage converter is connected to the collector of the transistor. The converter outputs a signal which first falls to a positive level and then rises to another positive level. That is, the input circuit can convert an input signal of a negative level to a signal of a positive level.

REFERENCES:
patent: 4453095 (1984-06-01), Wrathall
patent: 4629913 (1986-12-01), Lechner
patent: 4677320 (1988-06-01), Hannington
patent: 4695750 (1987-09-01), Hara et al.
patent: 4713600 (1987-12-01), Tsugaru et al.
D. A. Hodges et al., "Interfacing," Analysis and Design of Digital Integrated Circuits, Chap. 7, Sec. 7, 1983.

Affiliated with

Also associated with

Rating

Input 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 Input circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Input circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2414465