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| Number | Title | Issue Date |
| 8174244 | 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... | 05/08/2012 |
| 8169196 | 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... | 05/01/2012 |
| 8072189 | Charge and discharge control circuit and battery device Provided are a charge and discharge control circuit capable of reducing a circuit size, and a battery device. In a charger reverse connection detection circuit (116), a comparison circuit or the like is not used, and two NMOS transistors are used, whereby cir... | 12/06/2011 |
| 8054049 | Using battery orientation to control mode of operation Electrical contacts in the battery compartment of a device will permit a battery to be inserted with the “+” pole of the battery against either one of the two contacts, with the “−” pole of the battery positioned against the other contact. A polarity-sensi... | 11/08/2011 |
| 7852047 | Disconnection detection device of assembled battery system and disconnection detection method of same Upon detecting a disconnection, a current detection circuit supplies a detection current to connection lines between each cell and the corresponding voltage monitoring circuit. The detection current is larger than a consumption current flowing via each voltage monit... | 12/14/2010 |
| 7696708 | Ripple detecting device A ripple detecting device for detecting a ripple from an armature current outputted from a motor by overlapping a low band noise having a frequency of one/n (wherein “n” is a natural number more than 1) includes an initial ripple detecting device for detecting a... | 04/13/2010 |
| 7629775 | 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... | 12/08/2009 |
| 7592781 | Charger control circuit with automatic polarity selection An exemplary charger control circuit includes an input port having a positive terminal and a negative terminal, an electrode control circuit, and an output port having a positive terminal and a negative terminal. The input port is connected to a source of power. The... | 09/22/2009 |
| 7363175 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/22/2008 |
| 7362104 | Current measurement device and test device A current measuring apparatus for measuring a power supply current received by an electronic device includes: a first current supplying unit for outputting a first current which is a part of the power supply current; a smoothing capacitor for smoothing the first cur... | 04/22/2008 |
| 7342321 | Bicycle electric power unit A bicycle electric power unit supplies electric power to a bicycle motor unit having a power source, a power source controller, a power source voltage detector, a first power source switch and a second power source switch. The power source controller turns off the f... | 03/11/2008 |
| 7339485 | Rectifier for supplying double voltage and RFID tag thereof Disclosed is a rectifier for supplying double voltage and an RFID tag thereof. The rectifier includes a charging part for charging an input voltage induced to input ends by a received radio frequency (RF) signal; a power provider for charging a sum voltage correspon... | 03/04/2008 |
| 7319304 | Shunt connection to a PCB of an energy management system employed in an automotive vehicle A method of coupling a shunt to a printed circuit board (PCB) of an energy management system is provided. The method includes coupling flexible electrical connectors to the shunt and soldering the flexible electrical connectors to connection points on the PCB of the... | 01/15/2008 |
| 7298114 | Nickel hydrogen/nickel cadmium battery charger with the function of emergency power supply A NiH/NiCd (nickel hydrogen/nickel cadmium) battery charger with the function of emergency power supply unit having a main body with a charging chamber and a charging circuit positioned within the main body to allow an electric connection to the charging chamber and... | 11/20/2007 |
| 7295936 | Electronic battery tester with relative test output An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ... | 11/13/2007 |
| 7246015 | Alternator tester An alternator tester is provided for testing an alternator of a vehicle while the alternator is coupled to the vehicle. A sensor is configured to couple to the vehicle and sense a signal related to operation of the alternator. A memory contains data related to opera... | 07/17/2007 |
| 7148808 | System for battery alarm notification and a method for implementing same In an embodiment of the present invention, a clamp-on sensor is coupled at a single point of a battery string in an un-interruptible power supply. In embodiments of the present invention, the clamp-on sensor is a Hall effects sensor for sensing ripple current throug... | 12/12/2006 |
| 7126341 | Automotive vehicle electrical system diagnostic device An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation o... | 10/24/2006 |
| 7106070 | Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries A broad-band technique for reducing the distributed inductance of a four-conductor Kelvin cable is disclosed. A special inductance-canceling cable section is connected in tandem with the cable section contacting the cell/battery. Connections between the two cable se... | 09/12/2006 |
| 7102415 | Trip-point detection circuit A current is provided from a power source to a load through a pass circuit that is series coupled to a sense resistor. A current trip-point detection circuit is arranged to detect a change in the current that is provided to a load. The current trip-point detection c... | 09/05/2006 |
| 7085123 | Power supply apparatus and power supply method A power supply apparatus and a power supply method are described, wherein the non-polar characteristics of the electrodes of a capacitor is utilized to improve the energy utilization efficiency of a battery through reciprocating switches of polarity connection betwe... | 08/01/2006 |
| 7034541 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/25/2006 |
| 7003410 | Electronic battery tester with relative test output An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ... | 02/21/2006 |
| 7003411 | Electronic battery tester with network communication An electronic battery tester for testing a storage battery includes test circuitry configured to provide a battery test output related to a condition of the battery. A memory stores a battery tester address of the battery tester, and communication circuitry transmit... | 02/21/2006 |
| 6998847 | Electronic battery tester with data bus for removable module An electronic battery tester is provided for testing storage batteries. Battery test circuitry is configured to couple to the storage battery and measure a condition of the battery. A removable module is configured to couple to the battery tester to add increased fu... | 02/14/2006 |
| 6928309 | Portable communication terminal charger system When a portable communication terminal is being charged by a charger, a control signal according to a command entered into the charger is fed from the charger to the portable communication terminal so that, according to this control signal, the portable communicatio... | 08/09/2005 |
| 6906523 | Method and apparatus for testing cells and batteries embedded in series/parallel systems A “three-point” measurement technique effectively removes system effects to determine impedance, admittance, resistance, or conductance of an individual cell, battery, or interconnecting conductor embedded in a series or series-parallel electrochemical battery o... | 06/14/2005 |
| 6774607 | Charger connected to a load via a switching circuit to prevent an incorrect polarity connection The invention relates to an electronic circuit for a power supply device (1), in particular for a charger (2) for accumulators (3), in which the power supply device (1) is connected via input terminals (4, 5) to a power source (... | 08/10/2004 |
| 6759833 | Charger capable of switching polarity A charger is provided for charging a battery from a source and capable of detecting and switching polarity. The charger includes a first detection block for connection with the source, a second detection block for connection with the source, a first switch connected... | 07/06/2004 |
| 6713989 | Solarswitch An active switch for electrically connecting and disconnecting a power source such as a solar array to a charge storage device is disclosed. The active switch allows a minimal amount of reverse back current flow from the charge storage device to the power source hav... | 03/30/2004 |
| 6700221 | Electronic unit and method for detecting a polarity inversion of the onboard power supply voltage in motor vehicles An electronic unit in a motor vehicle has a connection for the negative onboard power supply voltage and a connection for the positive onboard power supply voltage, as well as an internal electric supply unit that can be used independently of the polarity... | 03/02/2004 |
| 6632103 | Adaptive booster cable for a vehicle battery An adaptive booster cable is connected with two pairs of clips, wherein the two pairs of clips are respectively attached to two batteries to transmit power from one battery to the other battery. The adaptive booster cable includes a polarity detecting uni... | 10/14/2003 |
| 6544078 | Battery clamp with integrated current sensor An apparatus configured to couple to a battery contact is provided. The apparatus includes an electrical connector for connection to a battery contact and a current sensor coupled to the electrical connector, the current sensor is used for measuring curre... | 04/08/2003 |
| 6469475 | Method and apparatus for detecting a disconnection in the charge line between a generator and an electric battery in a motor vehicle In a method for detecting a disconnection in the charge line between a generator and an electric battery in a motor vehicle, the generator output voltage is measured and is evaluated at least with respect to the ripple voltage. A disconnection in the char... | 10/22/2002 |
| 6424158 | Apparatus and method for carrying out diagnostic tests on batteries and for rapidly charging batteries A method and system for performing automatic and rapid diagnostic testing and charging of a battery. The diagnostic test unit utilizes a charger combined with a rapidly variable load. After inputting battery characteristics including the cranking rating (... | 07/23/2002 |
| 6420854 | Battery detector An apparatus and method for detecting the presence of a battery in a battery charging circuit is provided. An inductor is placed in series with a charging circuit and the battery connection leads. A switching device and a capacitive device are connected i... | 07/16/2002 |
| 6373229 | Battery charging system for portable electronic devices A stand-alone battery charger warning system for use with portable electronic devices is disclosed whereby a warning is generated in response to a determination that a) a battery is not presently connected to the charger and b) at least one predetermined ... | 04/16/2002 |
| 6340876 | Method for detecting battery removal or absent battery condition in a constant current charger A system and method for detecting battery removal or absent battery condition in a charger without use of external stimulus such as a thermistor, EEPROM, or additional pin. The system and method use information solely available from the charger positive a... | 01/22/2002 |
| 6316907 | Filtering and voltage raising circuit for connection between a car radio and a motor-vehicle battery A circuit having an anti-interference filter constituted by an inductor in series with one of the supply terminals of the car radio and by a capacitor in parallel with the supply terminals, and a diode connected in series with the inductor for protection ... | 11/13/2001 |
| 6291970 | Device for reverse polarization protection for a battery A device providing reverse polarization protection for a battery having both positive and negative terminals disposed at one end of the battery (e.g., a 9 volt "transistor radio" battery). The device is adapted for insertion between the battery terminals ... | 09/18/2001 |
