Class / Patent application number | Description | Number of patent applications / Date published |
320165000 | With current sensing to detect proper battery connection (e.g., polarity, ripple, reverse current, etc.) | 10 |
20080224669 | Battery Connection Detection Circuit - A battery connection detection circuit is disclosed that is able to correctly determine an operation condition of a secondary battery and a connection condition between the secondary battery and a charging device. A determination circuit monitors both the voltage Vt | 09-18-2008 |
20090001938 | CHARGING DEVICE - A method performed by a charging device may include detecting a presence of an external device connected to a secondary side of the charging device and setting a switch on a primary side of the charging device to an off state when a presence of an external device is not detected. | 01-01-2009 |
20090102433 | Charge control device for vehicle - A resistor is connected to first and second terminals included in a vehicle inlet. To the first terminal, a control pilot line used for transmitting a pilot signal is connected. In the case where the vehicle inlet is not connected to a connector, a switch is turned off. A voltage generation circuit sets the potential of the second terminal to a potential higher than a vehicle earth potential. In the case where the vehicle inlet is not connected to the connector and the control pilot line is broken, the potential generated on the control pilot line is substantially equal to the earth potential level. Based on the potential of the control pilot line, a control unit detects a break. | 04-23-2009 |
20090128099 | Method and arrangement for controlling an electrical device - The invention relates to a method and arrangement for detecting a situation in which an electrical device is connected to another electrical device. The electrical device comprises a first, second, and third electrical contact terminal ( | 05-21-2009 |
20100033140 | CHARGING DEVICE AND CHARGING SYSTEM - A test circuit first detects whether or not a relay unit is normal, and then examines an operation of leakage detecting circuit. This allows relay unit to interrupt an electric power supply path including power lines more securely if electrical leakage occurs in the electric power supply path. If welding in the contact of the relay unit is detected before starting charging of a power storage device included in an electrical device, a control device does not allow the charging of the power storage device, which can prevent a problem from occurring in the electrical device. | 02-11-2010 |
20100207588 | Detecting and Responding to Unexpected Electric Vehicle Charging Disconnections - An electrical vehicle charging station establishes a charging session with an electric vehicle which includes energizing a power receptacle in the charging station and receiving a charging cord at the power receptacle. While the charging session is established and responsive to detecting that a charging connection between the electric vehicle and the electric vehicle charging station has been unexpectedly disconnected, the power receptacle is de-energized to prevent electricity from flowing through the charging cord. | 08-19-2010 |
20130015824 | DETECTING AND SWITCHING BATTERY POLARITY IN A BATTERY CHARGER - Disclosed herein, among other things, are apparatus and methods for detecting and switching battery polarity in a battery charger. In various embodiments, a method includes grounding a first terminal of a battery inserted in a charger and sensing a bipolar voltage from a second terminal of the battery. The bipolar voltage is converted to a reduced unipolar voltage for sensing by an input to a microcontroller. A low resistance analog switch connects the battery to a charging circuit. The switch state of the analog switch is controlled using an output of the microcontroller, to present the proper battery polarity to the charging circuit based on the unipolar voltage. The battery is charged using the charging circuit, in various embodiments. | 01-17-2013 |
20140035539 | INTEGRATED CHARGER AND ALARM UNIT - An integrated charger and alarm unit. A plurality of alarm receptacles are in a housing, each for selectively receiving a sensor cord for sensing security status of one of a plurality of chargeable devices. A plurality of charging receptacles are in the housing, one for each alarm receptacle, each for selectively receiving a power cord for charging one of the chargeable devices. A power receptacle in the housing connects to an electrical power source. An electrical circuit is operatively connected to the alarm receptacles, the charging receptacles and the power receptacle. The electrical circuit comprises an alarm control powered by the electrical power source and connected to the alarm receptacles and generating an alarm signal if the security status of any of the plurality of chargeable devices is in an unsecured status. A power supply control regulates power from the electrical power source to each of the charging receptacles. | 02-06-2014 |
20150295434 | BATTERY CHARGING APPARATUS AND METHOD OF CONTROLLING BATTERY CHARGING APPARATUS - The battery charging apparatus has a first switch element connected to the first battery terminal at a first end thereof and to the first generator terminal at a second end thereof, and a second switch element connected to the first battery terminal at a first end thereof and to the second generator terminal at a second end thereof. In a case where the controlling circuit stops controlling the first switch element and the second switch element, and the first switch element and the second switch element are turned off, the detecting circuit forcedly turns on at least one of the first switch element and the second switch element when the detecting circuit detects the reverse connection condition of the battery. | 10-15-2015 |
20150303625 | ELECTRICAL PLUG AND ENERGY TRANSMISSION ARRANGEMENT - The invention relates to an electrical plug ( | 10-22-2015 |