Battery rapid charging circuit
First Claim
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1. A battery rapid charging circuit comprising:
- (a) a DC power source supplying a DC voltage across first and second terminals between which a battery to be charged is connected;
(b) means for short-circuiting said first and second terminals in a short period of time during a charging period of said battery, said short-circuiting means including a one-shot multivibrator producing first and second outputs and a first transistor which is connected across said first and second terminals, whereby when said transistor is supplied with the first output from said one-shot multivibrator, said transistor is made ON to short-circuit said first and second terminals;
(c) means for comparing a terminal voltage of said battery upon said short-circuiting period with a reference voltage; and
(d) means for stopping the supply of said DC voltage to said first and second terminals in response to an output of said comparing means.
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Abstract
A battery rapid charging circuit is disclosed which includes a DC power source supplying a DC voltage across first and second terminals between which a battery to be charged is connected, a circuit element for short-circuiting the first and second terminals in a short period of time during a charging period of the battery, a comparator for comparing a terminal voltage of the battery upon the above short-circuiting period with a reference voltage, and a circuit element for stopping the supply of the DC voltage across the first and second terminals in response to the output of the comparator.
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Citations
5 Claims
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1. A battery rapid charging circuit comprising:
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(a) a DC power source supplying a DC voltage across first and second terminals between which a battery to be charged is connected; (b) means for short-circuiting said first and second terminals in a short period of time during a charging period of said battery, said short-circuiting means including a one-shot multivibrator producing first and second outputs and a first transistor which is connected across said first and second terminals, whereby when said transistor is supplied with the first output from said one-shot multivibrator, said transistor is made ON to short-circuit said first and second terminals; (c) means for comparing a terminal voltage of said battery upon said short-circuiting period with a reference voltage; and (d) means for stopping the supply of said DC voltage to said first and second terminals in response to an output of said comparing means. - View Dependent Claims (2, 3, 4, 5)
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Specification