136results about How to "Large charging current" patented technology

The invention discloses an adaptive input power charger and a method for controlling an input current of a charger. An input voltage of the charger is compared with a first reference voltage through a comparison circuit to generate a comparison result; and when the comparison result represents that current of input power is limited, a current regulation circuit controls the duty ratio of a power switch tube according to the comparison result to limit the input current of the charger so as to remove a current-limiting state of the input power. In addition, when the comparison result represents that the current of the input power is not limited, the current regulation circuit can also increase the current reference value of a current control loop according to the comparison result to increase charging current so as to achieve the purpose of quick charging. The adaptive input power charger can be used for adaptively performing current-limiting protection according to different input voltages, so that the adaptability is good.

The invention relates to an electric automobile power battery management system and method. The electric automobile power battery management system comprises a battery information detection module, a central processing module, a logical switch array switching module and a power module, wherein the battery information detection module can be used for detecting the voltage of each battery monomer; the central processing module is used for receiving the voltage of each battery monomer detected by the battery information detection module, comparing all voltages in the detection result, calculating an average voltage value and finding out the battery monomer the voltage of which is lower than the average voltage value and is the lowest in a battery set; the battery monomer the voltage of which is lower than the average voltage value and is the lowest in the battery set is conducted with the logical switch array switching module by the central processing module; and the power module is used for supplying power for the central processing module and charging the battery monomer the voltage of which is lower than the average voltage value and is the lowest in the battery set. With adoption of the electric automobile power battery management system, the charging power of a battery can be accurately controlled, and the charging efficiency is high.

The invention discloses a balance control management system and a balance control method of a lithium-ion power battery pack. The balance control management system of the lithium-ion power battery pack comprises a MCU central control unit, a battery information monitoring module, a battery heat radiation module, a balance control module and a battery module, wherein the MCU central control unit is respectively connected with the battery information monitoring module, the battery heat radiation module and the balance control module, and the battery information monitoring module, the battery heat radiation module and the balance control module are respectively connected with the battery module. According to the balance control method, in the charging process, the battery information monitoring module continuously carries out data collection and conversion on the information of a single battery, feeds the obtained data to the MCU central control unit through an infrared transmitter, and when the voltage of one battery deviates from an interval value, and the MCU central control unit charges and discharges the battery by controlling a K-series switch and an optocoupler relay. According to the balance control management system and the balance control method of the lithium-ion power battery pack, the circuit is simple, the battery balance method is effective and easy to achieve, and the same balance effect is achieved both in the processes of charging and discharging.

The invention is applicable to the field of mobile terminal charging, and provides a charging current control method for a mobile intelligent terminal. The charging current control method comprises the steps of A, monitoring whether a charger is inserted or not; B, popping up a menu containing a charging current gear option when insertion of a charger is monitored; and C, charging the mobile intelligent terminal according to a charging current gear selected by a user. According to the invention, a charging current setting menu is additionally arranged at the mobile intelligent terminal, so that the user can be enabled to flexibly control charging current of the mobile intelligent terminal according to practical application scenario requirements, thereby increasing the interactivity between the user and the mobile intelligent terminal, and meeting requirements of various application scenarios.

A frequency-configurable oscillator circuit applied to a switching power supply is used for generating a clock control signal and a ramp signal required by a switching power supply circuit and is an on-chip circuit. The frequency-configurable oscillator circuit includes a work module identification circuit, a delay circuit, a synchronization module, a charging current control circuit, and an internal oscillator. The oscillator can automatically generate corresponding control signals through the change of external configuration. The oscillator works in three different work modes which includes a fixed output frequency, an adjustable output frequency, and an external clock synchronization frequency. The oscillator circuit has simple configuration mode and high reliability, suits various configurable oscillator occasions, and satisfies different application demands.

The invention provides electronic equipment, and the electronic equipment comprises a power supply which is used for providing electric energy for the electronic equipment; and a first charging unit which is connected with the power supply and connected with a first interface of the electronic equipment through a first switch. When the first switch is connected, the first charging unit is configured to charge peripheral equipment, connected to the first interface, at a first charging current. The electronic equipment also comprises a second charging unit, and the second charging unit is connected with the power supply and is connected with the first interface of the electronic equipment through a second switch. Moreover, when the second switch is connected, the second charging unit is configured to charge the peripheral equipment, connected to the first interface, at a second charging current. External charging electronic equipment serving as main equipment can carry out charging of equipment during shutdown. Moreover, a user can select quick charging or slow charging. When the user selects the quick charging, the electronic equipment can provide a larger charging current.

The invention discloses a self-powered super capacitor energy-storage power source for detecting line faults. The self-powered super capacitor energy-storage power source comprises a rectifying circuit, a pre-charging and by-pass switch circuit, a two-way controllable switch circuit, a charging and discharging control circuit, a super capacitor, an overvoltage control and driving circuit and a reference circuit. The rectifying circuit and the pre-charging and by-pass switch circuit are connected between a current transformer and a fault detecting device and are used for providing power output. The two-way controllable switch circuit is connected with the pre-charging and by-pass switch circuit and is used for controlling the super capacitor to be charged and discharged. The charging and discharging control circuit is connected with the two-way controllable switch circuit and is used for controlling the two-way controllable switch circuit to be connected and disconnected. The super capacitor is connected with the charging and discharging control circuit and the two-way controllable switch circuit and is used for energy storage. The overvoltage control and driving circuit is connected between the pre-charging and by-pass switch circuit and the reference circuit and is used for conducting overvoltage protecting control and driving. The input end of the reference circuit is connected to the pre-charging and by-pass switch circuit, and the output end of the reference circuit is connected with the charging and discharging control circuit and the overvoltage control and driving circuit. The self-powered super capacitor energy-storage power source can stably operate in line fault detection for a long time.

The invention discloses a quick charging device and a quick charging method. The quick charging device comprises a control module, a first power supply management module, a second power supply management module and a battery; the control module is used for enabling the first power supply management module after the charging is started and charging the battery by using the power supply management module; the control module is used for detecting the charging state of the battery, enabling the second power supply management module when the constant current charging state of the battery is detected, and charging the battery by utilizing the first power supply management module and the second power supply management module. Therefore, the charging current at the constant current charging stage can be increased and the charging time can be shortened. The dual power supply management modules are used for charging the battery in parallel; on one hand, the charging speed is accelerated; and on the other hand, in the quick charging, the charging current can be rationally shared by the two power supply management modules; the maximum charging current of the single power supply management module can be reduced effectively and the local heating problem of a mobile terminal at the power supply management module is solved.

The invention discloses a charging control device. The charging control device comprises a voltage monitoring unit, a control unit and an execution unit, wherein the voltage monitoring unit and the execution unit are connected to the output end of a charger and the control unit respectively; the control unit is used for controlling the execution unit to increase or decrease the output current of the charger; the voltage monitoring unit is used for judging whether the drop value of the output voltage of the charger is greater than a preset threshold value and sending judging results to the control unit; the control unit is used for controlling the execution unit to decrease the output current of the charger when the drop value of the output voltage of the charger is greater than the preset threshold value; when the drop value of the output voltage of the charger is less than or equal to the preset threshold value, the control unit controls the execution unit to increase the output current of the charger. The invention further discloses a charging control method and a POS terminal of the charging control device. According to the charging control device provided by the invention, the charging efficiency of the charger can be effectively improved.

The invention discloses electronic equipment and an electronic equipment based charging control method. The electronic equipment comprises a main control unit, at least two quick-charging circuits and a battery; the battery comprises a battery cell, charging and discharging interfaces and protective circuits, the number of the charging and discharging interfaces and the protective circuits is identical to the number of the quick-charging circuits, and the charging and discharging interfaces are positive and negative electrode interfaces of the battery; each quick-charging circuit is connected with the corresponding protective and the battery cell sequentially through one charging and discharging interface of the battery; the main control unit is used for controlling the quick-charging circuits to be powered on to charge the battery. The electronic equipment comprises at least two quick-charging circuits and the battery, the battery comprises the battery cell, the charging and discharging circuits and the protective circuits, the number of the charging and discharging circuits and the protective circuits is identical to the number of the quick-charging circuits, the main control unit controls the quick-charging circuits to be powered on to charge the battery when the battery is to be charged, charging current of the battery is increased, charging efficiency is improved, and requirements of users are met.

Embodiments in the invention provide a method, apparatus and terminal for charging of a terminal. The method comprises the following steps: acquiring the state information of the terminal so as to determine whether the terminal is in an idle state or not, wherein if the terminal is in a monitoring state, or network information or wireless paging indication is monitored, or the terminal actively initiates communication, it is determined that the terminal is not in the idle state, or otherwise, it is determined that the terminal is in the idle state; selecting a corresponding preset charging mode for the terminal in the idle state or not in the idle state by adjusting charging parameters of a switch circuit; and charging the terminal under the selected preset charging mode. According to the invention, the corresponding charging mode is selected by determining whether the terminal is in the idle state or not, so charging efficiency is improved.

The invention provides a dual-port charging battery and a charging system thereof. The charging system comprises a charging battery internally provided with an electrical core, a charging control circuit, a discharging control circuit, a first pathway and a second pathway, wherein the charging battery is provided with a charging port and a discharging port which are connected with the electrical core inside the charging battery; the charging port is connected with the charging control circuit through the first pathway, and the charging control circuit is used for connection with a power supply for charging the charging battery; and the discharging port is connected with the discharging control circuit, and the discharging control circuit is connected with a load through the second pathway for supplying power to the load. According to the dual-port charging battery and the charging system thereof, provided by the invention, the charging battery is not charged and discharged on the same port, layouts of the charging system and the load are not restricted, the problem of heat dissipation is solved, and charging currents of the charging battery are increased.

The invention discloses a charging control method and device, a storage medium and electronic equipment. The charging control method comprises the steps of when it is detected that a battery is in a charging state, acquiring a charging identifier; if the charging identifier is a first charging identifier, acquiring a charging current of the battery; judging whether the charging current is smallerthan a preset current or not; if yes, increasing a charging voltage so as to increase the charging current, and returning to execute the step of acquiring the charging current of the battery until theelectric quantity of the battery reaches a first preset electric quantity; and if not, returning to execute the step of acquiring the charging current of the battery. According to the scheme, when the battery of the electronic equipment reaches a certain breakage degree, that is, when the charging identifier is the first charging identifier, a first charging mode is started for rapid charging, sothat the technical problem that the charging speed is reduced after the battery is broken in the prior art can be solved.

The invention discloses a mobile power supply based on timing charging, which comprises an input end interface, a voltage conversion circuit, a charging switch, a battery pack, a control unit and a timer, wherein the input end interface, the voltage conversion circuit, the charging switch and the battery pack are sequentially connected; the charging switch is controlled by the control unit; when charging begins, the timer is started, when the preset timing time of the timer arrives, the charging circuit is controlled to be cut off, and charging is stopped. The MCU inside the mobile power supply is also connected with a battery power detection module. If the battery is detected to be fully charged before the time of the timer arrives, the charging is automatically controlled to be over through the charging switch. The MCU inside the mobile power supply is also connected with a temperature detection module. If the battery temperature or the temperature inside the mobile power supply is detected to reach a preset value before the time of the timer arrives, the charging is automatically controlled to be over through the charging switch. The mobile power supply based on timing charging has the advantages of quick charging and high safety.

The invention discloses a charger charging circuit, a mobile terminal charging circuit, a charger and a mobile terminal. The charger charging circuit comprises a voltage conversion circuit which converts AC to DC for connecting to an AC charging power supply, a first charging interface, and a first control circuit. The first charging interface is used for connecting to a first charging interface of a mobile terminal; the first charging interface comprises a voltage output terminal connected to a voltage conversion circuit and a plurality of first data transmission terminals; one end of the first control circuit is connected to the voltage conversion circuit, and the other end of the first control circuit is connected to at least one first data transmission terminal among the first data transmission terminals. During fast charging, the first control circuit controls connection between the voltage conversion circuit and the data transmission terminal; current outputted by the voltage conversion circuit flows through paths where the voltage output terminal and the data transmission terminal are arranged, such that the path where the data transmission terminal is arranged can be utilized for charging, which increases charging current and improves charging speed.

The invention discloses a mobile terminal. The mobile terminal comprises a USB port, a main board chip, a charging signal circuit and a charging switching circuit, wherein the main board chip is used for transmitting a first control signal to a charger when a rapid charging signal from the charger is received so as to indicate the charger to connect a first signal line and a second signal lien of the charging signal circuit with a grounding interface and a charging interface of the USB port respectively, and transmitting a second control signal to the charging switching circuit; and the charging switching circuit is connected with the main board chip, the USB port and the charging signal circuit separately and used for connecting the first signal line and the second signal line of the charging signal circuit of the mobile terminal with the grounding interface and the charging interface of the USB port of the mobile terminal respectively when the second control signal is received. Therefore, the circuit resistance of the USB charging line is lowered, the charging current is greatly improved, and the rapid charging speed of the mobile terminal is increased.

The invention belongs to the communication power supply field and relates to a constant power output control circuit for a communication power supply. The circuit is composed of an operational amplifier N1, resistors R1-R3, and a diode V1; a communication power supply output current detection value Ui and an output voltage set value Uref are connected to the in-phase input end of the operational amplifier N1 through the resistor R1 and the resistor R2; the reversed-phase input end of the operational amplifier N1 is connected with a reference voltage Vref; the cathode of the diode V1 is connected with the output of the operational amplifier N1, while the anode of the diode V1 is connected with the reference voltage Vref through the resistor R3; at the same time, the anode of the diode V1 is connected with the resistor R2; the operational amplifier N1 outputs a controlled output voltage set value Uref* through the anode of the diode V1. When the output of the power supply does not exceed the full power point, the circuit does not work; when the output of the power supply exceeds the full power point, the circuit lowers the output voltage to ensure constant power output of the communication power supply.

The invention discloses an electronic cigarette and a charging method thereof. The electronic cigarette comprises an atomizer, a charging port, a battery, an airflow sensing component and a charging component. The charging method comprises the following steps: a first charging current is provided for the battery through the airflow sensing component when an external power supply is connected in the charging port; a second charging current is provided for the battery through the charging component. According to the electronic cigarette and the charging method thereof provided by the invention, the battery is charged through the first charging current provided by the airflow sensing component and the second charging current provided by the charging component when the external power supply is connected for charging, so that the charging current of the battery is increased, and the charging time is shortened.

The invention discloses a charging method and device, computer equipment and a readable storage medium. The charging method comprises the following steps: if charging voltage of terminal equipment isdetermined not to be smaller than a set first voltage threshold value, reducing charging current of the terminal equipment according to set current stepping until the charging current of the terminalequipment is not greater than set constant charging current; charging the terminal equipment by using the constant charging current until the charging voltage of the terminal equipment is not smallerthan a set second voltage threshold value; and taking the second voltage threshold value as a new first voltage threshold value. Compared with the prior art, the charging method has the advantages that in an embodiment, when the charging voltage of the terminal equipment is not smaller than the set first voltage threshold value, charging current is not directly reduced to a small fixed current value, but the charging current is reduced step by step according to the set current stepping, therefore, large overall charging current can be ensured, the charging time is shortened, and the charging efficiency is improved.

The invention discloses a quick charge connecting line of portable electronic equipment. One end of the quick charge connecting line is provided with a first connector used for inserting a corresponding charging connector in the portable electronic equipment, and the other end of the quick charge connecting line is provided with a plurality of parallel branches, the terminal of each terminal is provided with a corresponding second connector used for being inserted in a corresponding adaptor, and a plurality of second connectors are connected in parallel and then are connected to the first connector. The invention further provides a quick charge method of the portable electronic equipment, wherein one end of the quick charge connecting line of the portable electronic equipment is inserted in the corresponding charge connector of the portable electronic equipment through the first connector, and the other end of the quick charge connecting line of the portable electronic equipment is correspondingly connected with a plurality of adaptors through the plurality of second connectors, and portable electronic equipment to be charged is charged after the plurality of parallel adaptors are used for acquiring power respectively. According to the quick charge connecting line provided by the invention, the portable electronic equipment can be powered by the plurality of adaptors which are jointly connected in parallel, so as to obtain large enough charging current and power and higher charging efficiency.

The invention discloses special high-power charging equipment powered by aluminum-air batteries. The charging equipment comprises an aluminum-air battery power management system and multiple aluminum-air batteries, wherein the multiple aluminum-air batteries are electrically connected with the aluminum-air battery power management system after being in serial connection; the aluminum-air battery power management system converts electricity generated by the multiple aluminum-air batteries and conveys the electricity to an external target rechargeable battery, and the external target rechargeable battery starts a charging state. The equipment further comprises multiple voltage detection modules which input detected information of the aluminum-air batteries to a master controller in the aluminum-air battery power management system, the operation conditions of the aluminum-air batteries are adjusted by an aluminum-air battery control module, so that the external target rechargeable battery can be charged. The charging equipment does not need an external power grid, is free from geographical limitations and does not need capacity of any power grid, energy is supplied by aluminum and air which are easy to obtain, the charging current is strong, the equipment is movable, the investment cost is low, and massive stationing and networking are facilitated.

The invention relates to a charging method applicable to a super capacitor of a wind generating set pitch control system, which comprises the following steps of: setting a starting valve value, a stopping valve value and at least one optimized charging valve value between the starting valve value and the stopping valve value; starting a charging branch circuit to charge when the terminal voltage of a super capacitor set is less than the starting valve value; increasing a charging current when the terminal voltage of the super capacitor set reaches a first optimized charging valve value, continuously charging until the terminal voltage of the super capacitor set reaches the stopping valve value if a second optimized charging valve value does not exist,, and increasing the charging current again until the terminal voltage of the super capacitor set reaches a final optimized charging valve value if the second optimized charging valve value exists; and increasing the charging current to continuously charge until the terminal voltage of the super capacitor set reaches the stopping valve value. The charging method has high efficiency.

A charge control device includes a voltage detector (82) that detects a voltage of a battery (2), a temperature detector (42) that detects a temperature of the battery (2), a voltage setting unit (80, 40) that sets at least one of a charge completion voltage and an abnormality determination voltage to a high temperature time voltage that is lower than a normal voltage when the battery temperature detected by the temperature detector (42) is or is above a high temperature determination threshold set in advance, and a charging current limiting unit (80, 40) that reduces a charging current a charger (50) supplies to the battery (2) when the battery temperature is in a temperature range between a set temperature that is lower by a predetermined temperature than the high temperature determination threshold and the high temperature determination threshold and the battery voltage detected by the voltage detector (82) is in a voltage range between the normal voltage and the high temperature time voltage, during charging of the battery (2) by the charger (50).

The invention relates to the technical field of mobile terminals and provides a mobile terminal and a charge control method of the mobile terminal. The charge control method comprises the following steps that in the process of charging the mobile terminal at a constant voltage, the internal resistance of a battery of the mobile terminal is detected; according to the internal resistance of the battery of the mobile terminal, the resistance value of a slide rheostat in parallel connection with a branch circuit where the battery of the mobile terminal is located is regulated to be the same as the resistance value of the branch circuit where the battery of the mobile terminal is located, so that the resistance value in a charging circuit is minimum; at the moment, the charging current to the battery of the mobile terminal is maximum, and the speed of constant-voltage charging is increased.

The embodiment of the invention provides an information processing method and an electronic device to solve the technical problem that in the prior art, an electronic device with a columnar battery as a charging battery is low in charging efficiency, and the purpose of improving the charging efficiency of the columnar battery of the electronic device is achieved. The method comprises the steps that the current first state information of a first interface of the electronic device is obtained; a current first working mode of the electronic device is controlled to be switched into a second working mode; under the first working mode, at least two batteries of the electronic device are in a series discharging state, and under the second working mode, the batteries are in a parallel charging state.

The invention relates to a low-temperature charging method of a lithium ion battery. The method is applied to the low-temperature charging process of the lithium battery. According to the method, thereal-time temperature of the lithium battery is obtained, and the switch of a battery heating device is controlled by the comparison result between the real-time temperature and a preset temperature threshold value in a battery management system so as to keep the lithium battery in the safe temperature range, and the lithium battery is stably charged at a specific safe charging rate; then an ultrasonic detection technology is used for detecting whether gas exists in the lithium battery or not, and the charging is directly continued or the charging process is performed after the charging current is lowered according to the detection result; and the steps that the ultrasonic detection is carried and the charging is directly continued or the charging process is performed after the charging current is lowered are repeatedly executed so as to realize safe charging in the whole process of the lithium battery in different stages. The method skillfully introduces a charging control method combining the ultrasonic detection technology and the battery heating technology, so that the problems that the existing lithium battery is large in low-temperature charging energy consumption, long in time and easy to separate out lithium are effectively solved, and the charging efficiency is also improved.

The invention discloses a fast charging system and method for handheld equipment and the handheld equipment. The fast charging method is applied to the handheld equipment. The handheld equipment comprises a wireless receiving device, a second charging module and a battery which form a wireless charging circuit, and a USB interface, a first charging module and a battery which form a wired chargingcircuit. The fast charging method specifically comprises the following steps: acquiring the current charging stage of the battery; and controlling the wired charging loop and the wireless charging loop to be turned on to simultaneously perform wired charging and wireless charging on the battery when the current charging stage is the constant current charging stage. The system and the method have the advantage of improving the charging efficiency of the battery of the handheld equipment.

The invention relates to a voltage amplitude limiting circuit for controlling a current supply switch of a current steering analog-to-digital converter (DAC). The voltage amplitude limiting circuit comprises a first switch unit and a second switch unit which are arranged between an output end and a grounding end of the amplitude limiting circuit in parallel, a standard inverter of which the input end is electrically connected with the input end of the amplitude limiting circuit, and a resistance unit and a third switch unit which are arranged between a voltage supply and the output end of the amplitude limiting circuit in parallel, wherein the first switch unit controls the on and off between the output end and the grounding end of the amplitude limiting circuit according to signal voltage of the input end of the amplitude limiting circuit; the second switch unit controls the on and off between the output end and the grounding end of the amplitude limiting circuit according to the signal voltage of the input end of the amplitude limiting circuit; and the third switch unit controls the on and off between the voltage supply and the output end of the amplitude limiting circuit according to the signal voltage of the output end of the standard inverter. By adopting the amplitude limiting circuit provided by the invention, burrs of the output signal of the DAC are reduced; the dynamic performance of the DAC is improved; and an output voltage range of the DAC is increased.