Title:
REDUNDANT ANALOG BUILT-IN SELF TEST
Document Type and Number:
WIPO Patent Application WO/2023/130109
Kind Code:
A3
Abstract:
A test system (200) has first (210), second (220) and third (230) circuits having the same design and configured to receive a same input signal. A majority voter circuit (240) has a first voter input (214) coupled to a first circuit output, a second voter input (224) coupled to a second circuit output, a third voter input (234) coupled to a third circuit output, and a voter output (244). The output signal is equal to a signal present at least two of the voter inputs. A discrepancy detector circuit (260) has first, second and third discrepancy inputs coupled to the first, second and third circuit outputs, respectively. A discrepancy output (262) provides a first logic signal responsive to the first, second and third circuit outputs having equal values and provides a second logic signal responsive to the first, second and third circuit outputs having unequal values.
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Inventors:
DURYEA TIMOTHY (US)
Application Number:
PCT/US2023/010035
Publication Date:
August 10, 2023
Filing Date:
January 03, 2023
Export Citation:
Assignee:
TEXAS INSTRUMENTS INC (US)
International Classes:
G06F11/18
Domestic Patent References:
| WO1987006037A1 | 1987-10-08 |
Foreign References:
| US4873685A | 1989-10-10 |
Attorney, Agent or Firm:
DAVIS, Valerie M. (US)
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