Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Generating sawtooth or triangular output
Patent
1993-05-03
1995-04-18
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Generating sawtooth or triangular output
327108, H03K 406, H03K 1756
Patent
active
054081335
ABSTRACT:
An apparatus for providing an EEPROM programming signal, comprises a charge pump circuit for receiving a programming input signal on a programming input line and for charging up a gate drive voltage signal in response to a rising edge of the programming input signal. A transistor that includes a gate coupled to the gate drive signal couples the programming input line to a programming output line, which is coupled to an EEPROM. A ramp control circuit including (i) a capacitor and (ii) a transistor controlling the flow of current through the capacitor, is coupled to the programming output line for regulating a ramp-up rate of a programming output signal on the programming output line. A ramp-down circuit is coupled to the programming input line and to the programming output line and is responsive thereto for providing a ramp-down of the programming output signal after the programming input signal goes low.
REFERENCES:
patent: 3708692 (1973-01-01), Matuoka
patent: 3916224 (1975-10-01), Daniels et al.
patent: 4488060 (1984-12-01), Simko
patent: 4516036 (1985-05-01), Miller
patent: 4644250 (1987-02-01), Hartgring
patent: 4703196 (1987-10-01), Arakawa
patent: 4823317 (1989-04-01), Brahambhatt
patent: 4855622 (1989-08-01), Johnson
patent: 4859955 (1989-08-01), Trethewey
patent: 4878164 (1989-10-01), Colombo
patent: 4888498 (1989-12-01), Kadakia
patent: 4942341 (1990-07-01), Imaizumi
patent: 5241494 (1993-08-01), Blyth et al.
Honnigford Edward H.
Hulka William J.
Callahan Timothy P.
Delco Electronics Corporation
Funke Jimmy L.
Le Dinh
Simon Anthony Luke
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