Lead acid battery rejuvenator
First Claim
1. A battery rejuvenator, comprising:
- a switching circuit for generating a pulse train signal having predetermined current and voltage signal characteristics, the predetermined current signal characteristic comprising for each pulse in the pulse train signal a substantially linear rise in current from a base current level at a first current rate followed by a substantially linear decay in current to the base current level at a second current rate less than the first rate, and the predetermined voltage signal characteristic comprising for each pulse in the pulse train signal a substantially linear rise in voltage from a base voltage level at a first voltage rate, followed by a substantially linear decay in voltage at a second voltage rate less than the first voltage rate, and then followed by an exponential decay in voltage to the base voltage level; and
means for connecting the generated pulse train signal having the predetermined current and voltage signal characteristics to a pair of terminals for a battery to remove or inhibit sulfate deposit growth.
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Accused Products
Abstract
A rejuvenator for lead acid batteries powered by a multi-solar cell unit and/or a rectified a.c. source, the output of which is applied to a capacitor. The output of the capacitor is in turn connected across the primary of a transformer. A switching circuit connects and disconnects the primary coil to and from the capacitor to produce in the secondary coil of the transformer a fast rise time current pulse for application to a battery. A positive temperature coefficient resistor is connected in series with an output terminal of the rejuvenator to protect the rejuvenator components in the event the output terminals, through accident or mistake, are connected to battery terminals of opposite polarity.
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Citations
16 Claims
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1. A battery rejuvenator, comprising:
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a switching circuit for generating a pulse train signal having predetermined current and voltage signal characteristics, the predetermined current signal characteristic comprising for each pulse in the pulse train signal a substantially linear rise in current from a base current level at a first current rate followed by a substantially linear decay in current to the base current level at a second current rate less than the first rate, and the predetermined voltage signal characteristic comprising for each pulse in the pulse train signal a substantially linear rise in voltage from a base voltage level at a first voltage rate, followed by a substantially linear decay in voltage at a second voltage rate less than the first voltage rate, and then followed by an exponential decay in voltage to the base voltage level; and means for connecting the generated pulse train signal having the predetermined current and voltage signal characteristics to a pair of terminals for a battery to remove or inhibit sulfate deposit growth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A battery rejuvenator, comprising:
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a capacitor; a transformer having a primary coil and having a secondary coil; means for connecting the secondary coil of the transformer to a battery; and switching means for sensing a voltage stored in the capacitor, the switching means operating responsive to a sensed voltage exceeding a first value to transfer stored voltage from the capacitor to the primary coil of the transformer, and operating responsive to a subsequent drop in sensed voltage to less than a second value to flyback the transferred voltage from the primary coil to the secondary coil of the transformer for pulsed application to the battery through the means for connecting. - View Dependent Claims (10, 11)
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12. A battery rejuvenator, comprising:
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a capacitor; a transformer having a primary coil and having a secondary coil; a first switch functioning when turned on to connect the capacitor in parallel with the primary coil of the transformer, and when turned off to disconnect the capacitor from the primary coil of the transformer; a second switch connected to sense a voltage stored in the capacitor and in response thereto turn the first switch on and off thereby generating a pulse train signal at the secondary coil of the transformer; and means for connecting the generated pulse train signal at the secondary coil to a pair of terminals for a battery to remove or inhibit the growth of sulfate deposits. - View Dependent Claims (13, 14, 15, 16)
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Specification