Fast level shift circuits

Details Fast level shift circuits Fast level shift circuits

1980-02-22

1982-02-02

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307263, 307264, 307268, 307451, H03K 19092, H03K 501, H03K 512

Patent

active

043141668

ABSTRACT:
A logic level converter for translating an input signal that swings between first and second voltage levels to an output signal that swings between third and fourth voltage levels. The input signal and its complement are first translated to the desired output levels in a pair of conventional CMOS inverters to produce complementary logic signals. The faster edge of each translated logic signal is used by logic means to control the output signal. Specifically, the leading edge of one logic signal and the trailing edge of the other logic signal are used to control the output signal. The resulting logic level shift circuit provides both fast rise and fall times, and substantially equal propagation delays for both high-to-low and low-to-high signal transitions.

REFERENCES:
patent: 3400277 (1968-09-01), Bruckner
patent: 3867649 (1975-02-01), Cochran
patent: 3906254 (1975-09-01), Lane et al.
patent: 3958136 (1976-05-01), Schroeder
patent: 3969719 (1976-07-01), Sirocka et al.
patent: 4031409 (1977-06-01), Shimada et al.
patent: 4125788 (1978-11-01), Kohmann
patent: 4258272 (1981-03-01), Huang

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