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US 2008/0185996 A1Published application
High frequency battery charger and method of operating same
AssigneeVector Products, Inc.
InventorsMichael Krieger, Bruce Randolph, Rov Scott Vetitoe
Life of this patent
Estimating the term…
Abstract
A high frequency charger includes a charge circuit for charging a depleted battery and a boost circuit for jump-starting a vehicle. Two separate high frequency transformers are provided for the charge and boost circuits. A selector switch selectively activates at least one of the charging circuit and the boost circuit.
Claims31
1-77. (canceled)
A high frequency charger comprising:
- a high frequency transformer;
- a switching configuration to switch the high frequency transformer to produce a charging current of about 2-20 amps for charging a battery and to switch the high frequency transformer to produce a boost current of about 30-300 amps;
- and
- a controller providing a high frequency driving signal to the switching configuration.
1 more element
A battery charger, comprising:
- a transformer having a primary winding and a secondary winding, the primary winding comprising a first winding portion and a second winding portion;
- a switching arrangement coupled to the primary winding for switching a DC current through at least one of the first winding portion and the second winding portion at a frequency of at least 20,000 Hz to produce a charging current for charging a battery and for switching a DC current through at least one of the first winding portion and the second winding portion at a frequency of at least 20,000 Hz to produce a boost current relatively high compared to the charging current and sufficient to jump start a vehicle containing the battery;
- an output circuit coupled to the secondary side of the transformer to provide the charging current and the boost current as a DC output;
- and
- connectors adapted to be connected to the battery and electrically coupled to the output circuit.
2 more elements
A high frequency batter charger, comprising:
- a switch circuit having an input for being coupled to a DC input and an output;
- a management circuit coupled to the switch circuit to drive the switch circuit at a high frequency;
- a high frequency transformer having a primary winding comprising a first and second winding portions and a secondary winding, the output of the switch circuit being coupled to at least one of the first or second primary winding portions to produce a charging current for charging a battery and coupled to at least one of the first or second winding portions to produce a boost current higher than the charging current and sufficient to jump start a vehicle including the battery;
- a filter coupled to the secondary winding to produce the charging current and the boost current as DC outputs;
- and
- battery connectors electrically coupled for supplying the DC output charging current or boost current to a battery in a vehicle.
3 more elements
Dependencies are inferred from the claim text.