Battery charging device
First Claim
1. A battery charging device comprising:
- (a) a switch power supply coupled to an A.C. power source for converting an A.C. power supplied from said A.C. power source into a D.C. power;
(b) a first control switch coupled to between said A.C. power source and an input of said switch power supply circuit;
(c) a second control switch;
(d) a first control circuit coupled by an input thereof to an output of said switch power supply circuit to receive said D.C. power therefrom, said first control circuit being further coupled by an output thereof to a battery to be charged through said second control switch, said first control circuit defining a plurality of conductive and non-conductive intermittent time periods, wherein a charging circuit is actuated from said output of said first control circuit to said battery during at least the first of said conductive time periods, and wherein, during said non-conductive time periods, the supply of the charging current to said battery is ceased;
(e) a second control circuit coupled between said second control switch and said battery, said second control circuit detecting a first voltage of the battery and turning said second control switch off after said detected first voltage of the battery is indicative of inverse polarity coupling of the battery to said battery charging device; and
(f) a third control circuit coupled by a first input thereof to said first control circuit, by a second input thereof to said battery, and by an output thereof to said first control switch, said third control circuit detecting a second voltage of the battery at the end of said at least first conductive time period and turning said first control switch off after said second voltage of the battery has reached a predetermining voltage value indicative of accomplished charging state of the battery.
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Accused Products
Abstract
A battery charging device both for charging a battery and for actuating a car engine includes a switch power supply circuit, a first, second, and third control circuit, and two control switches. While actuating the car engine, the battery charging device further employs a transient large current stage connected to the car engine. Users are capable of manually selecting the amount of the charging current for the battery and manually selecting different types of batteries to be charged. The battery is charged in the conductive time periods, and the voltage of the battery will be detected at the end of every conductive time period for determining entering next conductive time period or not. The battery charging device charges the battery with a constant current or with a smaller current under a constant voltage until the battery is fully charged.
5 Citations
9 Claims
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1. A battery charging device comprising:
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(a) a switch power supply coupled to an A.C. power source for converting an A.C. power supplied from said A.C. power source into a D.C. power;
(b) a first control switch coupled to between said A.C. power source and an input of said switch power supply circuit;
(c) a second control switch;
(d) a first control circuit coupled by an input thereof to an output of said switch power supply circuit to receive said D.C. power therefrom, said first control circuit being further coupled by an output thereof to a battery to be charged through said second control switch, said first control circuit defining a plurality of conductive and non-conductive intermittent time periods, wherein a charging circuit is actuated from said output of said first control circuit to said battery during at least the first of said conductive time periods, and wherein, during said non-conductive time periods, the supply of the charging current to said battery is ceased;
(e) a second control circuit coupled between said second control switch and said battery, said second control circuit detecting a first voltage of the battery and turning said second control switch off after said detected first voltage of the battery is indicative of inverse polarity coupling of the battery to said battery charging device; and
(f) a third control circuit coupled by a first input thereof to said first control circuit, by a second input thereof to said battery, and by an output thereof to said first control switch, said third control circuit detecting a second voltage of the battery at the end of said at least first conductive time period and turning said first control switch off after said second voltage of the battery has reached a predetermining voltage value indicative of accomplished charging state of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification