Period controllable frequency generator

Details Period controllable frequency generator Period controllable frequency generator

1996-12-27

1999-07-20

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

327278, 327284, 331 57, H03B 1900

Patent

active

059260459

ABSTRACT:
A frequency generator is disclosed including a plurality of inverters employing the gate of a PMOS and NMOS as their common input, and employing the source of the PMOS and drain of the NMOS as their common output, the plurality of inverters being serially connected, the output node of the output inverter being connected to the input node of the input inverter; and a current mirror consisting of two transistors having the same electrical characteristic, the current mirror being connected to the source of the NMOS of the input inverter, a signal transmission delay time of the current mirror being controlled by a predetermined current value applied from an external current source.

REFERENCES:
patent: 4806804 (1989-02-01), O'Leary
patent: 4899071 (1990-02-01), Morales
patent: 5061907 (1991-10-01), Rasmussen
patent: 5180995 (1993-01-01), Hayashi et al.
patent: 5231319 (1993-07-01), Crafts et al.
patent: 5331295 (1994-07-01), Jelinek et al.
patent: 5349311 (1994-09-01), Mentzer
patent: 5459755 (1995-10-01), Iga et al.
patent: 5499214 (1996-03-01), Mori et al.

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