Channel verification of multiple channels on one chip
AssigneeAnalog Devices, Inc.
InventorsJeremy Gorbold, Colin McIntosh, Niall McDermott, Katherine O'Riordan, Robert Parle, James Stegen
Life of this patent
Estimating the term…
Abstract
A battery monitoring system and method are disclosed. A battery monitor compares data in parallel register files. If voltage deviation above a certain threshold is detected in one register file, the system generates an alert that a fault exists upstream in the system. In order to better detect errors, the system may intentionally alter the voltages on the batteries to be monitored.
Claims21
A battery monitor, having a plurality of channel inputs, comprising:
- a measurement system to generate measurement information from voltages present on the channel inputs,
- a plurality of channel drivers, each associated with a respective channel input that, when activated, alters a voltage appearing on the respective channel input, and
- a controller to cause the measurement system to activate a selected channel driver and, at a predetermined time after the selected channel driver is activated, generate second measurement information for the channel input associated with the selected channel driver.
A method of analyzing and managing operation of a battery monitor, comprising:
- performing a first voltage measurement for at least one input of the battery monitor;
- activating a channel driver of the battery monitor that alters a voltage at the input of the battery monitor,
- performing a second voltage measurement for the at least one input of the battery monitor at predetermined delay after activating the channel driver, wherein a comparison of the first voltage measurement to the second voltage measurement can indicate operational error of the battery monitor.
A battery monitor, having a plurality of channel inputs, comprising:
- means for generating first measurement information from a voltage present on channel inputs,
- means for altering a voltage appearing on the respective channel input, and
- means for causing the measurement system to activate a selected channel driver and,
- means for generating second measurement information, at a predetermined time after the altering means is activated, for the channel input associated with the selected channel driver.
A non-transitory storage device storing program instructions that, when executed by a controller, cause the controller to:
- cause a measurement system to generate measurement information from voltages present on a plurality of channel inputs to a battery monitor,
- activate a selected channel driver of the battery monitor to alter a voltage present on a channel input associated with the channel driver, and
- at a predetermined time after the selected channel driver is activated, cause the measurement system to generate second measurement information for the channel input associated with the selected channel driver.
Dependencies are inferred from the claim text.