Method and an apparatus for boosting battery
First Claim
1. An apparatus for boosting a battery having positive and a negative terminals connected to a load circuit by applying between said positive and negative terminals a direct current boosting voltage of predetermined voltage value via a pair of cables having a predetermined length and respectively connected at one end thereof to said positive and negative terminals, comprising:
- input terminal means to be connected to a direct current voltage source means supplying a direct current voltage of value higher than said predetermined voltage value;
output terminal means including two output terminals to be respectively connected to the two cables at the end thereof opposite to said one end;
a high current adjustable load;
circuit means including said input terminal means for connecting the said high current adjustable load in series with the said voltage source means between the two output terminals whereby said voltage source means can supply through said high current adjustable load and said pair of cables both said boosting voltage between the positive and negative terminals of the battery and a direct current to said battery and load circuit; and
boosting voltage controller means comprising (a) a first sensor means for detecting the direct current voltage supplied between the two output terminals by said voltage source means, (b) a second sensor means for producing a signal representative of a voltage drop caused in said pair of cables by said direct current, and (c) means for varying said high current adjustable load in accordance with the detected voltage between the two output terminals and the voltage drop representative signal so as to adjust at said predetermined voltage value the boosting voltage applied between the positive and negative terminals of the battery.
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Abstract
When boosting a battery, a direct current boosting voltage is applied between the positive and negative terminals of the battery via a pair of cables of predetermined length. In order to supply a boosting voltage of predetermined constant value, a direct current voltage source supplies the boosting voltage to the battery not only through the pair of the cables, but also through a high current adjustable load. Of course, the direct current voltage source supplies a voltage of value higher than the boosting voltage predetermined value. A voltage controller detects the voltage between the ends of the two cables adjacent to the voltage source, and the voltage drop in the pair of cables, and varies the high current adjustable load in response to the detected voltage and voltage drop so as to adjust the boosting voltage at the predetermined constant value.
37 Citations
18 Claims
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1. An apparatus for boosting a battery having positive and a negative terminals connected to a load circuit by applying between said positive and negative terminals a direct current boosting voltage of predetermined voltage value via a pair of cables having a predetermined length and respectively connected at one end thereof to said positive and negative terminals, comprising:
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input terminal means to be connected to a direct current voltage source means supplying a direct current voltage of value higher than said predetermined voltage value; output terminal means including two output terminals to be respectively connected to the two cables at the end thereof opposite to said one end; a high current adjustable load; circuit means including said input terminal means for connecting the said high current adjustable load in series with the said voltage source means between the two output terminals whereby said voltage source means can supply through said high current adjustable load and said pair of cables both said boosting voltage between the positive and negative terminals of the battery and a direct current to said battery and load circuit; and boosting voltage controller means comprising (a) a first sensor means for detecting the direct current voltage supplied between the two output terminals by said voltage source means, (b) a second sensor means for producing a signal representative of a voltage drop caused in said pair of cables by said direct current, and (c) means for varying said high current adjustable load in accordance with the detected voltage between the two output terminals and the voltage drop representative signal so as to adjust at said predetermined voltage value the boosting voltage applied between the positive and negative terminals of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification