Pulse width modulation analog to digital converter

Details Pulse width modulation analog to digital converter Pulse width modulation analog to digital converter

1995-08-10

1998-04-28

Hoff, Marc S.

Coded data generation or conversion

Analog to or from digital conversion

With particular solid state devices

341166, H03M 150

Patent

active

057450625

ABSTRACT:
A pulse width modulation analog to digital converter can accommodate both wide band AC analog input signals and DC analog input signals. If the frequency of the input signal is much higher than the conversion rate of the PWM analog to digital converter, then the output digital pulse is of constant width versus the analog input signal amplitude. If the frequency of the analog input signal is lower than the conversion rate, then the output digital signal is a train of variable width pulses whose width tracks the amplitude of the analog input signal.

REFERENCES:
patent: 4023160 (1977-05-01), Kirschner
patent: 4225913 (1980-09-01), Bray
patent: 4588984 (1986-05-01), Dorsman
patent: 4598270 (1986-07-01), Shutt et al.
patent: 4810912 (1989-03-01), Theus et al.
patent: 5272451 (1993-12-01), Yamate et al.
patent: 5293077 (1994-03-01), Seki et al.
patent: 5432693 (1995-07-01), Anderson
patent: 5579006 (1996-11-01), Hasegawa et al.

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