Abstract: A nickel metal hydride/nickel cadmium secondary battery charger includes: a charging base having a lower casing and a cover; a charge control circuit board installed in a containing space of the lower casing; a power supply plug with its external end corresponding to the cylindrical shape of a cigarette lighter in a car for connecting a power supply and conducing electric power, and its internal end being a protruding ear and having a protruding axle pivotally coupled to both sides of the protruding ear, and a conducting wire passed through the interior of one of the protruding axles and connected to a power supply input terminal of the charge control circuit board. The power supply plug uses two protruding axles of the protruding ear as an axis to be rotated and folded from 0° to 180°, so that the protruding axles is extended in front of the charging base or folded in the opposite direction into the battery compartment to facilitate its carrying and reduce its storage space.

Abstract: A serial charger with the function of automatic change of charging speed for NiCd/NiH batteries is provided where the different charging modes for multi-speed (four speed) charging process, two speed charging process or two speed charging process in two charging phases can be achieved by use of the speed-changing principle with a low power consumption of an exchange power unit. The finished charging time of each battery varies inversely as the number of the detected batteries to be charged. No matter whether the charging voltage is variable or constant, the charging current varies automatically to achieve the speedy charging process or the normal charging process even under low power consumption. Accordingly, an exchange power unit can be reduced in size and built in the charger so that the charger is convenient to carry and the finished charging time can be adjusted automatically according to the demand of battery consumption of customers.

Abstract: A portable battery charger in shape of thumb having a USB connector mounted on a circuit board for controlling the charging process. The circuit board includes a charging terminal unit consisting of a positive and a negative terminal. A housing is adapted to cover the circuit board and fix the USB connector in place. A charging chamber is formed in the housing for receiving one or two charging batteries. The USB connector, the circuit board and the charging chamber are joined together to form a strip-shaped body in a linear axial (x-x) direction, thereby facilitating the carrying and the connection to an electronic product with USB connector.

Abstract: 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 the power input interface. This charging control circuit is controlled by an electrical switch which divides the charging chamber into two or more parts. When the power input interface is connected, the electrical switch shuts off automatically to make the batteries in the charging chamber to be charged in groups. This is the function of charger. When the power input interface is switched off, the batteries in different circuit are joined in series to supply power as an emergency power supply unit. Therefore, with the design principle of “separate charging and common sharing”, it can protect the rechargeable batteries and provide power in lacking of power supply unit outdoors.

Abstract: The present invention relates to a series charger with separate detection of batteries which includes a charging control device for converting the inputted AC power into DC power so as to charging four batteries in series connection. The charging control device further provides a reference voltage source to a control IC which is connected with a current detector for measuring the current value of the batteries. Each of the series-connected batteries is parallel-connected with a switch element. A one-way diode is interposed between the positive end of the batteries and each of the switch elements. Besides, the control IC provides ??V to the positive terminal of the respective charging circuit of the batteries for detecting the end-point voltage thereof. When each of the batteries is fully charged, the respective switch element is switched in a close circuit so that the charging current continues to flow downward for further charging operation.

Abstract: A nickel hydrogen battery charger with the function of detection of battery capacity having an instant discharge loop coupled to a charging circuit. A rapid detection of the battery capacity is performed by use of the instant voltage level during discharge. It takes only few seconds to determine if the battery capacity lies within the allowable range. No more charging process is necessary when the batteries reach the preset criterion. To the contrary, a charging process is required when they don't reach it. In this way, it is avoidable that the mixed use of parallel/series-connected batteries with different capacities produces reverse flow, thereby resulting in overheating or even exploding risks due to overdischarge of the batteries with larger capacity.

Abstract: The invention relates to an integrated charger for use in a car having a charging seat and a power supply head. The charging seat includes a charging groove for receiving and charging dry batteries. A power supply head adapted to a cigarette lighter socket in the car is inserted thereinto for leading the power source into the charging seat. The power supply head and the charging seat are integrated in a body for a direct and convenient charging of the dry batteries.

Abstract: The present invention relates to a series charger with separate detection of batteries which includes a charging control device for converting the inputted AC power into DC power so as to charging four batteries in series connection. The charging control device further provides a reference voltage source to a control IC which is connected with a current detector for measuring the current value of the batteries. Each of the series-connected batteries is parallel-connected with a switch element. A one-way diode is interposed between the positive end of the batteries and each of the switch elements. Besides, the control IC provides −&Dgr;V to the positive terminal of the respective charging circuit of the batteries for detecting the end-point voltage thereof. When each of the batteries is fully charged, the respective switch element is switched in a close circuit so that the charging current continues to flow downward for further charging operation.

Abstract: The present invention relates to a series charger with separate detection of batteries which includes a charging control device for converting the inputted AC power into DC power so as to charging four batteries in series connection. The charging control device further provides a reference voltage source to a control IC which is connected with a current detector for measuring the current value of the batteries. Each of the series-connected batteries is parallel-connected with a switch element. A one-way diode is interposed between the positive end of the batteries and each of the switch elements. Besides, the control IC provides −&Dgr;V to the positive terminal of the respective charging circuit of the batteries for detecting the end-point voltage thereof. When each of the batteries is fully charged, the respective switch element is switched in a close circuit so that the charging current continues to flow downward for further charging operation.

Abstract: The present invention relates to a series charger with separate detection of batteries which includes a charging control device for converting the inputted AC power into DC power so as to charging four batteries in series connection. The charging control device further provides a reference voltage source to a control IC which is connected with a current detector for measuring the current value of the batteries. Each of the series-connected batteries is parallel-connected with a switch element. A one-way diode is interposed between the positive end of the batteries and each of the switch elements. Besides, the control IC provides −&Dgr;V to the positive terminal of the respective charging circuit of the batteries for detecting the end-point voltage thereof. When each of the batteries is fully charged, the respective switch element is switched in a close circuit so that the charging current continues to flow downward for further charging operation.

Abstract: The present invention relates to a USB flash drive includes a mobile storage device and at least one interconnector. The mobile storage device is provided with a built-in circuit board having a connector at one end thereof. The connector is in connection with a controller and a flash memory to create an electrical connection. Moreover, the connection interface of the connector juts outside the housing. The interconnector includes a socket at one end thereof which corresponds to the connector of the mobile storage device. The outer end of the interconnector is constructed as a USB interface fastened into the inside of the housing. Besides, the outer end of USB interface juts outside the housing.

Abstract: The present invention relates to a USB flash drive includes a mobile storage device and at least one interconnector. The mobile storage device is provided with a built-in circuit board having a connector at one end thereof. The connector is in connection with a controller and a flash memory to create an electrical connection. Moreover, the connection interface of the connector juts outside the housing. The interconnector includes a socket at one end thereof which corresponds to the connector of the mobile storage device. The outer end of the interconnector is constructed as a USB interface fastened into the inside of the housing. Besides, the outer end of USB interface juts outside the housing.

Abstract: An universal power adapter is constructed to include a power input connector, the power input connector having a voltage regulator adapted to automatically regulate the voltage of input current, the voltage regulator including a power/signal jack for connection to the charging connector, a DC voltage converter adapted to convert input current into the desired voltage level and then transmit the voltage-converted input current to the power/signal jack, and a feedback control voltage output circuit adapted to drive the DC voltage converter to output a predetermined voltage subject to compare the feedback voltage signal obtained from the power/signal jack, and a charging connector, which includes a power/signal connecting connector at one end of the power cord thereof for connection to the power/signal jack and a voltage parameter preset therein.

Abstract: An universal power adapter is constructed to include a power input connector, the power input connector having a voltage regulator adapted to automatically regulate the voltage of input current, the voltage regulator including a power/signal jack for connection to the charging connector, a DC voltage converter adapted to convert input current into the desired voltage level and then transmit the voltage-converted input current to the power/signal jack, and a feedback control voltage output circuit adapted to drive the DC voltage converter to output a predetermined voltage subject to compare the feedback voltage signal obtained from the power/signal jack, and a charging connector, which includes a power/signal connecting connector at one end of the power cord thereof for connection to the power/signal jack and a voltage parameter preset therein.

Abstract: The present invention relates to a power supply unit for a portable game machine which is engaged in a cover of a battery chamber of the portable game machine. The power supply unit includes a DC socket and a circuit board with constant voltage loop. The circuit board is connected with the DC socket, a positive and a negative conductors and arranged in a chamber of the cover. The positive conductor has a compression spring and a conductive bar while the negative conductor is inverted U-shaped. The circuit board comprises a diode, a voltage-stabilizing integrated circuit, an n-p-n power transistor and three resistances so that a constant voltage loop to control the DC voltage output is created. Accordingly, the required power of the present invention can be supplied by the supply network through the commercially available transformer or by automobiles through the cigarette lighter outlet. Besides, the positive and negative conductors have the advantages of convenient assembly and excellent contact.

Abstract: A mobile telephone battery charger is constructed to include a LCD, a selector switch, and a microprocessor controlled by the selector switch to drive the LCD to indicate the voltage value or current value of output charging electricity.

Abstract: The present invention relates to a multifunctional power supply unit for a Game Boy machine comprising a housing that is engaged in a battery compartment and in which a constant voltage loop, a rechargeable battery set, a DC socket, a positive and a negative poles, an amplifying circuit and a speaker are received. The positive and negative poles are positioned at the side of the housing and in contact with the electric pole inside of the battery compartment. The constant voltage loop is disposed on a circuit board and connected with the DC socket to get the power source from the externally connected transformer or the vehicle and to stabilize it at certain voltage range required by the game machine. Thereafter, a connection to the positive and negative poles takes place for supplying a stable voltage to the game machine. Besides, the output of the constant voltage loop is in connection with the rechargeable battery set for the charging purpose.

Abstract: The present invention relates to a power supply unit for a portable game machine which is engaged in a cover of a battery chamber of the portable game machine. The power supply unit includes a DC socket and a circuit board with constant voltage loop. The circuit board is connected with the DC socket, a positive and a negative conductors and arranged in a chamber of the cover. The positive conductor has a compression spring and a conductive bar while the negative conductor is inverted U-shaped. The circuit board comprises a diode, a voltage-stabilizing integrated circuit, an n-p-n power transistor and three resistances so that a constant voltage loop to control the DC voltage output is created. Accordingly, the required power of the present invention can be supplied by the supply network through the commercially available transformer or by automobiles through the cigarette lighter outlet. Besides, the positive and negative conductors have the advantages of convenient assembly and excellent contact.

Abstract: The present invention relates to a includes a USB port connector and a charging connector. The USB port connector is used to plug into the jack of the USB port while the charging connector is used to plug into the jack of the electronic products to be charged. The current flowing into the USB port connector will then pass through an automatic voltage regulator. Disposed within a housing of the automatic voltage regulator is a DC voltage transformer which transforms the DC voltage (5V) coming from the USB port to the required voltage supplied to a power/signal connecting jack. Provided within the DC voltage transformer is furthermore a feedback control voltage output circuit which compares the feedback voltage signal of the power/signal connecting jack and enable the DC voltage transformer to output a preset voltage. The charging connector is fitted with a power cord which includes a power/signal connecting connector to fit the power/signal connecting jack.