73results about How to "Reduce charging loss" patented technology

A memory cell with a charge trapping structure is programmed using refill cycles that include a program pulse followed by a charge balancing pulse that causes ejection of electrons from the charge trapping structure. The refill cycle causes a blue spectrum shift in the charge trap distribution in the charge trapping structure. The algorithm includes program verify operations after the program pulse, and completes when a successful program verify operation occurs after a number of refill cycles.

A method of operating a memory cell comprises applying a first procedure (typically erase) to establish a low threshold state including a first bias arrangement causing reduction in negative charge in the charge trapping structure, and a second bias arrangement tending to the induce balanced charge tunneling between the gate and the charge trapping structure and between the charge trapping structure in the channel. A second procedure (typically program) is used to establish a high threshold state in the memory cell, including a third bias arrangement that causes an increase in negative charge in the charge trapping structure.

A memory cell with a charge trapping structure has multiple bias arrangements. Multiple cycles of applying the bias arrangements lowering and raising a threshold voltage of the memory cell leave a distribution of charge in the charge trapping layer. The charge interferes with the threshold voltage achievable in the memory cell. This distribution of charge is balanced by applying a charge balancing bias arrangement at intervals during which a plurality of program and erase cycles occurs. Also, the charge balancing bias arrangement is applied prior to the beginning of program and erase cycles of the memory cell.

A semiconductor radiation detector is provided for improved performance of pixels at the outer region of the crystal tile. The detector includes a semiconductor single crystal substrate with two major planar opposing surfaces separated by a substrate thickness. A cathode electrode covers one of the major surfaces extending around the sides of the substrate a fraction of the substrate thickness and insulated on the side portions by an insulating encapsulant. An exemplary example is given using Cadmium Zinc Telluride semiconductor, gold electrodes, and Humiseal encapsulant, with the side portions of the cathode extending approximately 40-60 percent of the substrate thickness. The example with CZT allows use of monolithic CZT detectors in X-ray and Gamma-ray applications at high bias voltage. The shielding electrode design is demonstrated to significantly improve gamma radiation detection of outer pixels of the array, including energy resolution and photopeak counting efficiency. The detector has performance of detector leakage current density less than 6 nA/mm² at a bias potential of substantially 1400V, and responsive to gamma radiation such that the energy resolution full width half maximum of more than 90% of the pixels is less than 6%.

A method for manufacturing a MirrorBit® Flash memory includes providing a semiconductor substrate and successively depositing a first insulating layer, a charge-trapping layer, and a second insulating layer. First and second bitlines are implanted and wordlines are formed before completing the memory. Spacers are formed between the wordlines and an inter-layer dielectric layer is formed over the wordlines. One or more of the second insulating layer, wordlines, spacers, and inter-layer dielectric layers are deuterated, replacing hydrogen bonds with deuterium, thus improving data retention and substantially reducing charge loss.

A charge control device uses external electricity to charge a plurality of battery devices. A constant current source uses the external electricity to generate and adjust an output current amount to a constant target value. A selector selects one battery device from the plurality of battery devices and supplies output current from the constant current source to the one battery device. A measurer measures an amount of actual current flowing from the constant current source to the one battery device. An instructor monitors a measured value provided by the measurer and instructs the selector, when the measured value meets a condition for a reduction of charging current amount to be regarded as having occurred, to change a destination to which the output current of the constant current source is supplied from the one battery device to a different battery device.

Disclosed is a source driver for receiving an input voltage and generating an output voltage to drive a data line in a liquid crystal display apparatus. In the source driver, first and second P-channel MOS transistors are together used as a primary source follower to trace the input voltage thereby eliminating the body effect and keeping the loading charge loss constant. First and second N-channel MOS transistors are used, as a secondary source follower. A capacitor is used for boosting the voltage of the drain of the first N-channel MOS transistor on the level of at least the input voltage plus the threshold voltage of the N-channel MOS transistor. In addition, an extra switch is used to reach the accurate output voltage when the output voltage is approaching the input voltage.

The invention discloses an electric automobile lead acid battery charger. The electric automobile lead acid battery charger comprises a switch power supply circuit and a monitoring and control unit. The switch power supply circuit comprises a power transformer, a rectification circuit and a filtering circuit. The monitoring and control unit comprises a voltage current sensor, a power special-purpose integrated chip and a microcontroller. The monitoring and control unit is used for detecting and adjusting the currents and voltages of the switch power supply circuit. According to the invention, through designing a reasonable charging strategy and a reasonable charging algorithm, the damage to a storage battery is reduced, and the charging speed is accelerated.

The invention discloses a battery charging current adjusting method comprising the following steps: acquiring the current power information and the current value of charging current of a battery; acquiring a reference current value corresponding to the current power information of the battery according to a preset mapping relationship between power information and reference current values; comparing the current value of charging current with the acquired reference current value; and when the current value of charging current is greater than the acquired reference current value, adjusting the value of charging current to the reference current value to charge the battery. The invention further discloses a battery charging current adjusting device. According to the battery charging current adjusting method and the battery charging current adjusting device of the invention, large battery loss caused by battery charging at too large current is avoided, the charging loss of batteries is reduced, and the service life of batteries is prolonged.

The embodiment of the invention provides electronic equipment, wireless charging equipment and a wireless charging method, and belongs to the technical field of charging. The electronic equipment comprises a receiving coil, a receiving circuit, a first switch module and a first control module. The first control module is used for controlling on-off of at least two first switches in the first switch module according to the parameters relevant to the magnetic coupling strength between the receiving coil and an emitting coil of the wireless charging equipment, so that the number of turns of sub coils of effective working in the receiving coil is adjusted. According to the electronic equipment, the wireless charging equipment and the wireless charging method, the number of the turns of the subcoils of effective working in the receiving coil is adjusted according to the magnetic coupling strength between the emitting coil and the receiving coil, and therefore temperature rising of equipment in the charging process is lowered by adjusting the effective impedance of the coils.

The invention relates to an electric vehicle battery replacement charging system, comprising a charging chamber (1), a transmission bridge belt (3) is arranged in the charging chamber (1), a connection interface (4) is arranged on the vehicle (2), and the transmission bridge belt (3) Connected to the connection interface (4), the end of the transmission bridge belt (3) is connected to the conveyor belt (5) in the car (2), the charging room (1) is provided with a charged area and a sufficient area, and the charged area Equipped with a charging device and a detection device, the battery packs in the charged area and the fully charged area are transferred and transmitted through the transport mechanism, the head end of the transmission bridge belt (3) is connected to the charged area and the fully charged area, and the charged area and the already charged area are connected to each other. The battery pack in the sufficient area is transferred to the conveyor belt (5) through the transmission bridge belt (3), and the conveyor belt (5) is connected with the battery box (6) in the car (2); the invention greatly shortens the charging time and improves the battery life of the electric car. The use of penetration rate, while effectively reducing the damage of the battery, reducing the loss of charging.

The present invention facilitates memory devices and operation of dual bit and single bit memory devices by providing systems and methods that employ a salicide block to vary and equalize the resistance of a memory array during fabrication. The present invention includes utilizing a common charge dissipation region to mitigate charge-loss by providing protection against charging up of the various lines as a result of further plasma etching processes. The salicide block equalizes the charge dissipation in the memory array by providing each wordline path with a varied amount of resistance in addition to the total path resistance. Because the charge protection provided to each wordline otherwise varies depending on the resistance path to a common discharge element, a salicide block for resistance equalization provides greater reliability and predictability during processing. Other such shapes conducive for any desired resistance path fall within the scope of the invention.

The invention discloses a portable power source charging method, a power source adapter and a portable power source. The portable power source charging method is applied to the power source adapter, and comprises the steps of: communicating with the connected portable power source by a charging handshake protocol, and establishing a communication connection with the portable power source; receiving a target charging parameter sent by the portable power source and required for charging, wherein the target charging parameter is related to the series-parallel mode of a battery pack inside the portable power source; and adjusting a charging parameter for the portable power source according to the target charging parameter. By adopting the method, the charging parameter of electric energy output by the power source adapter can be matched with the charging demand of the portable power source, the voltage conversion process of the portable power source on the charged electric energy is reduced, and the purposes of reducing the charging loss of the portable power source and reducing the heat dissipation burden of the portable power source are fulfilled.

The invention discloses an emergency power supply system special for an intelligent energy-saving fire control emergency lamp. The emergency power supply system comprises a power supply control unit and an adapter. The input end of the adapter is respectively connected with an external electric supply and a storage battery, the output end of the adapter is connected with a power supply control unit, and the adapter provides various required working voltages for the power supply control unit. The power supply control unit comprises a central processing unit (CPU), a charging control module, the storage battery, a power conversion module, an input output detection module and an output circuit. The adapter comprises a filtering rectifying circuit, a switch oscillation circuit, an oscillation and pulse width modulation control circuit, a multi-way rectifying filtering circuit, a direct current (DC) sampling circuit and a DC output circuit group. The emergency power supply system combines electric supply power supply and storage battery power supply, ensures normal work of the emergency lamp, reduces safety hazards, is capable of charging storage batteries with different capacities and voltages in the series of products, simplifies circuit structure and reduces cost. The power supply input range accepted by the adapter of a switch power supply is large.

The invention discloses a V2V fast charging system of a vehicle-mounted charger and a control method thereof. The V2V fast charging system outputs voltage regulation of a battery, and a fast charging cable comprises an on-cable control box, and a fast charging interface and a slow charging interface which are arranged at two ends of the on-cable control box; a discharge vehicle A is inserted into the slow charging interface, and a power receiving vehicle B is inserted into the fast charging interface; the discharge vehicle A carries a vehicle-mounted charger to obtain energy from a high-voltage battery pack of the discharge vehicle A, and the energy is adjusted into high-voltage direct current requested by the power receiving vehicle B through a V2V fast acting system; the on-cable control box constructs a signal channel and a charging channel of the discharge vehicle A and the power receiving vehicle B, and high-voltage direct current output by the discharge vehicle A is transmitted to the power receiving vehicle B. A charging circuit of the power receiving vehicle B does not need to be passed, limitation of power of the charging circuit of the power receiving vehicle B is avoided, the charging module of the discharge vehicle A of various specifications can be compatible, the charging speed reaches the maximum power of the discharge vehicle A, the charging time is shortened, the charging efficiency is improved, and the charging loss is greatly reduced.

A controller for controlling a charging current to a lithium-ion secondary battery controls the charging current so that lithium expected to dissolve after a stop of charging is permitted to deposit on an anode of the lithium-ion secondary battery. For example, the controller controls the charging current so that the charging current does not exceed a predetermined upper limit value. If a predetermined permission condition is satisfied, the controller permits the lithium expected to dissolve after the stop of charging to deposit on the anode of the lithium-ion secondary battery by permitting the upper limit value to become larger than a Li deposition limit value in a predetermined permission period.