Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1975-02-04
1976-01-20
Shoop, William M.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 40, 340249, 324 295, H02J 700, G08B 2100
Patent
active
039341887
ABSTRACT:
The voltage of a battery connected to a load is monitored to provide a continuous instantaneous indication of the voltage level of the battery and to provide an indication that the battery voltage has fallen to some critical level. Means are provided for generating a control signal which is representative of the battery voltage when the apparatus is operated in the battery testing mode and an independent voltage when the apparatus is operated in the self-testing mode. A first indicator means responsive to the control signal is provided for continually indicating the instantaneous level of the battery voltage when the apparatus is operating in the battery testing mode and the instantaneous level of the independent voltage when the apparatus is operating in the self-testing mode. A second indicator means is provided for indicating that the battery voltage has dropped below a first predetermined value when the apparatus is operating in the battery testing mode or that the independent value when the apparatus is operating in the self-testing mode. The second indicator means also disables the load after a predetermined time period has elapsed following a decrease in the battery voltage below the first predetermined value when the apparatus is operating in the battery testing mode or after a decrease in the independent voltage below the second predetermined level when the apparatus is operating in the self-testing mode.
REFERENCES:
patent: 3529230 (1970-09-01), Tedd
patent: 3852732 (1974-12-01), Yorksie et al.
Flight Systems, Inc.
Hickey Robert J.
Shoop William M.
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