Multiple voltage battery charge balancing and load protecting device
First Claim
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1. For use in an electric supply system having a battery system providing an input voltage and a plurality of output voltages of different magnitudes for corresponding electric outputs and including means for charging the battery system, a device for maintaining a predetermined battery charge ratio, comprising:
- (a) an electric input,(b) a plurality of electric outputs,(c) means for developing an error current proportional to the difference between a predetermined ratio of input to output voltage of a battery system and the actual ratio of input to output voltage of said battery system, and(d) means responsive to said error current to change the current flow at said plurality of electric outputs to return the battery system input to output voltage ratio to said predetermined ratio.
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Abstract
A multiple battery source of multiple voltages is connected to the input of a switching regulator in which the currents sourced by inverting and non-inverting inputs are compared for balance, and when the imbalance is generated by external circuitry and "error" current is detected by the comparator circuit which thereupon provides an electrical output correction signal to the switching circuitry to correct the imbalance.
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Citations
9 Claims
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1. For use in an electric supply system having a battery system providing an input voltage and a plurality of output voltages of different magnitudes for corresponding electric outputs and including means for charging the battery system, a device for maintaining a predetermined battery charge ratio, comprising:
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(a) an electric input, (b) a plurality of electric outputs, (c) means for developing an error current proportional to the difference between a predetermined ratio of input to output voltage of a battery system and the actual ratio of input to output voltage of said battery system, and (d) means responsive to said error current to change the current flow at said plurality of electric outputs to return the battery system input to output voltage ratio to said predetermined ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification