Abstract: A battery control circuit includes a pulse controller, a first FET, a second FET, an inductor and a capacitor. The pulse controller includes a first and a second driving port. The gate electrode of the first FET is connected to the first driving port. The drain electrode of the first FET is connected to a battery. The gate electrode of the second FET is connected to the second driving port. The source electrode of the second FET is grounded. The drain electrode of the second FET is connected the source electrode of the first FET. The inductor is connected between the source electrode of the first FET and the capacitor. A power port is connected to a connection of the capacitor and the inductor. The pulse controller controls the first and second driving port to output pulse signal alternatively, to alternatively switch on the first and second FET.

Abstract: A charging and discharging control system for a battery is disclosed, and the battery is configured to charge or discharge for a peripheral device. The charging and discharging control system includes a voltage converting circuit, an embedded controller, a current detection circuit. The voltage converting circuit is electrically connected the battery with the peripheral device, and the battery charges the peripheral. The embedded controller is electrically coupled to the voltage converting circuit. The current detection circuit electrically coupled to the voltage converting circuit. The current detection circuit is configured to detect a current value between the battery and the peripheral device and send a power-off signal when the current value is equal to zero. The embedded controller is configured to send a power-off notification upon detecting the power-off signal, and the voltage converting circuit disconnects the battery and the peripheral device upon receiving the power-off notification.

Abstract: A system for charging and discharging batteries includes a battery module, an adapter, a charger, and an electronic device electrically connected to the charger and the battery module. The battery module includes a first cell battery, a second cell battery, and a first switch electrically connected to the first and second battery cells. The adapter receives an AC voltage, and converts the AC voltage to a DC voltage. The charger receives the DC voltage, and charges the battery module accordingly. The electronic device is electrically connected to the charger and the battery module. When the charger charges the battery module, the first switch is switched to electrically connect the first and second battery cells with the charger in series. When the battery module discharges to the electronic device, the first switch is switched to electrically connect the first and second battery cells with the electronic device in parallel.

Abstract: Power supply circuit includes a voltage converting circuit and a comparing circuit. The voltage converting circuit includes a PWM controller and a plurality of transistors connected therewith. The voltage converting circuit is configured to switch on or off the plurality of transistors alternately and outputting a voltage signal with a ripple. The comparing circuit is connected to the PWM controller and configured to compare a peak voltage of the ripple with a threshold value. When the peak voltage is not greater than the threshold value, the comparing circuit outputs a first signal to the PWM controller, and the PWM controller decreases a switch frequency of the plurality of transistors. When the peak voltage is greater than the threshold value, the comparing circuit outputs a second signal to the PWM controller, and the PWM controller increases the switch frequency of the plurality of transistors.

Abstract: A power supply circuit is configured to supply a working voltage for an electric load. The power supply circuit includes a controller and a power supply module connected to the controller. The power supply module includes a first output channel and a second output channel both of which are connected to the electric load. A current sensor is connected to the controller and configured to sense a current output from the first output channel. Either the first output channel or the second output channel is deactivated by the controller when the current sensed by the current sensor is less than a predetermined current value. Both of the first output channel and the second output channel are activated when the current sensed by the current sensor is greater than the predetermined current value.

Abstract: A system for charging and discharging batteries includes a battery module, an adapter, a charger, and an electronic device electrically connected to the charger and the battery module. The battery module includes a first cell battery, a second cell battery, and a first switch electrically connected to the first and second battery cells. The adapter receives an AC voltage, and converts the AC voltage to a DC voltage. The charger receives the DC voltage, and charges the battery module accordingly. The electronic device is electrically connected to the charger and the battery module. When the charger charges the battery module, the first switch is switched to electrically connect the first and second battery cells with the charger in series. When the battery module discharges to the electronic device, the first switch is switched to electrically connect the first and second battery cells with the electronic device in parallel.

Abstract: A display module including a first circuit board, a display panel and at least a die is disclosed. The display panel is disposed on the first circuit board and electrically connected to the first circuit board through a bonding wire. The die is disposed on the first circuit board and electrically connected to the first circuit board.

Abstract: The invention provides a stacked die package. The package includes a lead frame having a plurality of the leads and a stack of dice disposed thereon, in which the upper die may be electrically connected to the leads via at least one transit area on the lower die to transfer a power signal or a ground signal.

Abstract: A method of manufacturing a film printed circuit board is provided. A film substrate consisting of a polyimide substrate, an alloy layer and a first copper layer is provided. A first lithographic and etching process is performed to pattern the copper layer and the alloy layer and a plurality of conductive line structures is formed on the polyimide substrate. A second copper layer is formed over the polyimide substrate and the conductive line structures. A second lithographic and etching process is performed to pattern the second copper layer.

Abstract: A method of manufacturing a film printed circuit board is provided. A film substrate consisting of a polyimide substrate, an alloy layer and a first copper layer is provided. A first lithographic and etching process is performed to pattern the copper layer and the alloy layer and a plurality of conductive line structures is formed on the polyimide substrate. A second copper layer is formed over the polyimide substrate and the conductive line structures. A second lithographic and etching process is performed to pattern the second copper layer.

Abstract: A tape having a predetermined area is provided for a chip. A hole is drilled within the predetermined area. The chip is adhered to the predetermined area by underfilling an underfill material between the chip and the tape from one side of the chip. By the hole, the invention provides a short path for effectively dissipating gas to prevent voids from forming between the tape and the chip while the underfill material is applied.

Abstract: A method of manufacturing a film printed circuit board is provided. A film substrate consisting of a polyimide substrate, an alloy layer and a first copper layer is provided. A first lithographic and etching process is performed to pattern the copper layer and the alloy layer and a plurality of conductive line structures is formed on the polyimide substrate. A second copper layer is formed over the polyimide substrate and the conductive line structures. A second lithographic and etching process is performed to pattern the second copper layer.