44 results about "Standby current" patented technology

Entry of a memory device into a standby mode is determined. During the standby mode of the memory device, a first bias voltage level is caused to be applied to a sense amplifier latch of a sense amplifier of a page buffer circuit of the memory device. During the standby mode, a second bias voltage level is caused to be applied to a set of data latches of the sense amplifier of the page buffer circuit of the memory device, wherein the second bias voltage level is different from the first bias voltage level.

The invention discloses an air conditioner intelligent anti-creeping standby socket application circuit, the application circuit is electrically connected with commercial power, the commercial power comprises a zero line, a ground line and a live line, the application circuit is wirelessly connected with an air conditioner remote controller, and the air conditioner intelligent anti-creeping standby socket application circuit comprises an input end connected with the commercial power; the output unit comprises a socket which is electrically connected with a zero line, a ground line and a live line; the switch unit is arranged on the live wire and used for controlling connection and disconnection of the live wire; a standby current detection unit and a leakage current detection unit; the power supply unit is electrically connected with the zero line and the live line; and the main control unit is respectively connected with the power supply unit, the switch unit, the standby current detection unit and the leakage current detection unit. The method has the beneficial effects that energy is remarkably saved, consumption is remarkably reduced, and economic benefits are prominent; the power utilization safety is enhanced, and active protection is provided; intelligent automatic control is achieved, and user intervention is not needed; the function integration degree is high, and the structure is compact and practical.

The invention provides an HUD self-locking and ultra-low power consumption standby current control circuit which comprises an automobile storage battery, an MCU, an automobile regulation level low dropout regulator LDO, an ignition signal detection circuit, a triode Q2 and a CANINH signal end, the automobile storage battery outputs 12V voltage to the input end of the LDO, the output end of the LDO is connected with the MCU so as to provide 3.3 V working voltage, the MCU is connected with the triode Q2, the ignition signal detection circuit is connected with the triode Q2, and the CANINH signal end is connected with the triode Q2. The input end of the ignition signal detection circuit is connected with an ignition signal IGN +, the output end of the ignition signal detection circuit is connected with the enabling end EN of the LDO, the CANINH signal end is connected with the enabling end EN of the LDO, the collector electrode of the triode Q2 is connected with the enabling end EN of the LDO, the base electrode of the triode Q2 is connected with the MCU-OFF / ON pin of the MCU through a base electrode current-limiting resistor, and the output end of the triode Q2 is connected with the MCU-OFF / ON pin of the MCU. The problem that an existing power supply control circuit cannot meet the self-locking requirement can be solved.

The invention provides a current detection device, system and method, and relates to the technical field of electromagnetic compatibility testing. The current detection device comprises a support and further comprises an electromagnetic body, a conversion connector and a pointer which are installed on the support, the pointer is rotationally connected with the support through a rotating shaft, the end, away from the support, of the rotating shaft is connected with the electromagnetic body, the electromagnetic body is used for driving the pointer to deflect, and the conversion connector is electrically connected with the electromagnetic body. The conversion connector comprises a moving contact and a fixed contact which are used for conducting electricity, the fixed contact is fixedly installed on the support, the moving contact is fixedly connected with the pointer, the pointer is configured to enable the moving contact to abut against the fixed contact when the pointer is fully deviated, and the conversion connector is configured to switch a current path to enable the electromagnetic body to be short-circuited when the moving contact is connected with the fixed contact. When the current detection device is used for measuring the standby current of the DUT, the current detection device can be directly connected in series with an ampere meter with a larger range to measure the working current. The invention has the effect of continuously measuring the standby current and the working current of the DUT so as to simplify the measurement process.

Eyewear having a high-speed wireless transceiver, including a processor having a high-speed interface for communicating high-speed communications and a low-speed interface for communicating low-speed communications. The high-speed interface is disabled to have no standby current and only the low-speed interface is used when only low-speed communications are needed to save current. When communications are received via the high-speed wireless transceiver, only the low-speed interface is initially used, and the high-power interface is later used if necessary. The high-speed interface can be a high-speed universal serial bus (USB) interface, and the low-speed interface can be a universal asynchronous receiver-transmitter (UART) interface. A USB hub is controlled by the processor to selectively enable the USB interface.

The present invention provides a current detection device, system and method, which relate to the field of electromagnetic compatibility testing technology. A current detection device includes a bracket, and also includes an electromagnetic body, a conversion joint and a pointer installed on the bracket. The pointer is rotatably connected to the bracket through a rotating shaft, and the end of the rotating shaft away from the bracket is connected to the electromagnetic body. The electromagnetic body is used to drive the pointer to deflect, and the conversion joint is electrically connected to the electromagnetic body. The conversion joint includes a moving contact and a fixed contact for conducting electricity. The fixed contact is fixedly installed on the bracket, and the moving contact is fixedly connected to the pointer. The pointer is configured to make the moving contact abut against the fixed contact when fully deflected, and the conversion joint is configured to switch the current path to short-circuit the electromagnetic body when the moving contact and the fixed contact are connected. The above-mentioned current detection device is used to measure the standby current of the DUT, and can be directly connected in series with an ammeter with a larger range to measure the working current. The present invention has the effect of continuously measuring the standby current and working current of the DUT to simplify the measurement process.

The embodiment of the invention relates to the technical field of battery management, in particular to a single battery voltage sampling error calibration method, electronic equipment and a storage medium, and the method comprises the steps: obtaining a standby voltage value and a standby current value of a single battery in a standby state, and a reference voltage value under each reference current value; according to the method, the impedance value of the single battery is dynamically identified, the real voltage value of the single battery is accurately calculated by combining the measured current value and the measured voltage value of the single battery under the actual working condition, and the measured voltage value of the single battery is calibrated to be the real voltage value. Therefore, the sampling precision of the voltage of the single battery is improved, the condition of voltage sampling errors of the single battery is reduced, the influence of factors such as wiring harness impedance, distance and line aging of a sampling device is avoided, and the robustness and adaptability of voltage sampling of the single battery are remarkably enhanced.

To provide a warehouse device capable of suppressing a standby current and suppressing annual electricity consumption.SOLUTION: A partition of a storage area of a warehouse device has a number of zone members that form a conveyance path, at least some of the zone members have a standby state in which standby current is energized, and a resting state in which standby current is not energized, the warehouse device is provided with storage location storage means for storing the partition in which each storage article is stored, and input means for inputting information on the storage article to be removed, specifying a storage partition in which the storage article input by input means is stored while at least one of the zone members belonging to each partition is in the resting state, the zone member belonging to the storage partition is placed in the standby state, thereafter, the required zone member is driven to move to a required discharge part, thereafter, at least any of the zone members belonging to the storage partition is brought into the resting state.SELECTED DRAWING: Figure 7

The utility model belongs to the field of flight control, and particularly relates to a dual-redundancy integrated trim driver architecture. The architecture mainly comprises a signal acquisition unit which is connected with a control panel and is used for acquiring a balancing instruction given by the control panel; the main control unit is connected with the control panel, receives a balancing instruction given by the control panel, and obtains a current signal for driving the motor to rotate based on each balancing circuit; the standby control unit is connected with the control panel, receives a balancing instruction given by the control panel, and obtains a backup current signal for driving the motor to rotate based on each backup balancing circuit; the driving unit is connected with the main control unit and the standby control unit and is used for driving the motor to rotate according to the current signal or the standby current signal; and the power supply processing unit is connected with an onboard power supply and is used for supplying power to the signal acquisition unit, the main control unit, the standby control unit and the driving unit. The control driving functions of a plurality of balancing channels are integrated together, the weight can be saved, and the task reliability of the balancing mechanism is improved through the redundancy design.

Eyewear having a high-speed wireless transceiver, including a processor having a high-speed interface for communicating high-speed communications and a low-speed interface for communicating low-speed communications. The high-speed interface is disabled to have no standby current and only the low-speed interface is used when only low-speed communications are needed to save current. When communications are received via the high-speed wireless transceiver, only the low-speed interface is initially used, and the high-power interface is later used if necessary. The high-speed interface can be a high-speed universal serial bus (USB) interface, and the low-speed interface can be a universal asynchronous receiver-transmitter (UART) interface. A USB hub is controlled by the processor to selectively enable the USB interface.

This invention relates to the field of switching power supply technology for electric vehicles, specifically to a method for optimizing standby current of a DC-DC converter, an output circuit, and a DC-DC converter. The DC-DC converter output circuit includes a power supply, a BOOST circuit, and a forward circuit and a flyback circuit electrically connected to the BOOST circuit, respectively. Under no-load conditions, the flyback circuit supplies power instead of the BOOST circuit's BURST mode standby, maintaining power supply in standby mode and effectively reducing standby current. Simultaneously, when a sudden load is applied, the flyback circuit can temporarily boost the circuit's output voltage, providing response time for the BOOST circuit to start up and ensuring that the converter's output voltage does not drop excessively during BOOST circuit startup. The circuit achieves response to load conditions by adding a current-limiting resistor R1 at the output of the flyback circuit, thus achieving cost-effective reduction of standby current while ensuring responsiveness to sudden load applications.

The utility model discloses an LC series-parallel composite booster circuit, which comprises a direct-current power supply, a first parallel resonance circuit, a second series resonance circuit, a switch control circuit, a driving end, a voltage output end and a detection end, according to the utility model, the LC parallel resonance and LC series resonance of the inductor and the capacitor are combined for use, the coupled voltage is subjected to secondary resonance composite boosting, the output voltage is improved by geometric multiples, and the standby current of the product can be effectively reduced because the LC parallel resonance can generate enough inductive reactance, so that the boosting efficiency is improved.

The invention discloses an LC series-parallel composite booster circuit and a boosting method thereof. The LC series-parallel composite booster circuit comprises a direct-current power supply, a first parallel resonance circuit, a second series resonance circuit, a switch control circuit, a driving end, a voltage output end and a detection end, the method that LC parallel resonance and LC series resonance of an inductor and a capacitor are used in a combined mode is utilized, coupled voltage is subjected to secondary resonance composite boosting, output voltage is improved by geometric multiples, and due to the fact that the LC parallel resonance can generate enough inductive reactance, standby current of a product can be effectively reduced, and boosting efficiency is improved.

The invention discloses a capacitive circuit for reducing BMS power consumption when a key is pressed down, the capacitive circuit comprises a first loop and a second loop, the first loop is used for forming a conduction loop when the key is triggered or pressed down, so that a stable voltage difference is generated at two ends of a resistor R2, a gate-source voltage difference condition is provided for conduction of a PMOS tube M1, and the second loop is used for forming a conduction loop when the key is pressed down; according to the invention, the standby current of the BMS is reduced to 10uA from 15mA in the prior art and the standby time is prolonged to 1666.7 days from 1.1 days when the key is pressed down, so that the problems of rapid over-discharge and permanent damage of the battery cell due to the key is pressed down can be effectively avoided, and the service life of the battery cell is prolonged. The battery cell health of the BMS in the storage and transportation stages is guaranteed, the problems of market return and customer complaint caused by BMS power shortage due to the fact that the key is pressed down can be avoided, and the recessive after-sale cost is reduced.

Various methods and circuital arrangements for biasing one or more gates of stacked transistors of an amplifier are possible where the amplifier is configured to operate in at least an active mode and a standby mode. Circuital arrangements can reduce bias circuit standby current during operation in the standby mode while allowing a quick recovery to normal operating conditions of the amplifier. Biasing an input transistor of the stacked transistors can be obtained by using a replica stack circuit.

Embodiments of the present application relate to the technical field of battery management, and particularly relate to a single battery voltage sampling error calibration method, electronic equipment and storage medium. The standby voltage value and the standby current value of the single battery in the standby state are obtained, the reference voltage value under each reference current value is obtained, the impedance value of the single battery is dynamically identified, the real voltage value of the single battery is accurately calculated in combination with the measured current value and the measured voltage value of the single battery under the actual working condition, and the measured voltage value of the single battery is calibrated to the real voltage value. In this way, the sampling accuracy of the single battery voltage is improved, the single battery voltage sampling error is reduced, and the robustness and adaptability of the single battery voltage sampling are significantly enhanced without being affected by factors such as the wiring impedance of the sampling device, the distance, and the line aging.

A standby current detection circuit includes multiple first transistors. The first transistors are coupled in series to form a first detection circuit string, where N is a positive integer. The first detection circuit string is disposed on a scribe lane of a wafer, and the first detection circuit string is operated in a standby state and serves as a test medium for a standby current.

The utility model discloses a control boost circuit and a power supply system. The control boost circuit comprises a switch module, a power supply module and a boost IC chip. The power supply module has a positive output end and a negative output end; the boost IC chip comprises a first pin, a second pin and a third pin used for outputting second voltage, the first pin is connected with the positive electrode output end of the power supply module, and the second pin is connected with the negative electrode output end of the power supply module through the switch module. According to the technical scheme of the utility model, when the switch module is in a closed state, the second pin of the boost IC chip is connected with the cathode output end of the power supply module; when the switch module is in the off state, the second pin of the boost IC chip is disconnected with the negative electrode output end of the power supply module, so that the second pin of the boost IC chip and the negative electrode output end of the power supply module are in an off state, the boost IC chip does not have standby current any more and is in a zero-power-consumption state, and the requirement of a power supply product requiring extremely low quiescent current is met.

Disclosed are embodiments to provide a multi-battery energy storage device. One embodiment comprises a first battery and a second battery, with a first circuit branch coupling a positive side of the first battery to a positive side of the second battery, a second circuit branch coupling a positive side of the first battery to a negative side of the second battery, a third circuit branch coupling the negative side of the first battery to the negative side of the second battery, and multiple switchable devices configured to control flow of current through corresponding branches. Other embodiments comprise other configurations and operations.

A small circuit breaker switching power supply circuit, comprising an input power protection circuit, a standby current limiting circuit, an AC-DC switching power supply circuit, a motor working circuit, a power supply step-down circuit and a control circuit including an MCU; the input power protection circuit, the standby current limiting circuit and the AC-DC switching power supply circuit are connected in sequence, the AC-DC switching power supply circuit is respectively connected to the motor working circuit and the power supply step-down circuit, the motor working circuit is used to drive the motor and provide working current for the motor, the power supply step-down circuit steps down the power supply provided by the AC-DC switching power supply circuit and supplies power to the control circuit, the MCU is connected to the motor working circuit, and controls the motor to work through the motor working circuit, and the standby current limiting circuit is used to limit current when the MCU is in standby. The present invention has a simplified circuit structure and occupies a small space while meeting the power requirements.

Standby current of an arithmetic control unit configured to perform a control operation based on an activation signal generated by an unspecified manual operation is prevented. A power supply relay configured to supply power to an arithmetic unit is operated such that it is closed by a power supply switch, thereby applying operational control to a main electrical device and operational control to an auxiliary electrical device, according to a composite activation signal generated by an activation signal processing unit, in response to closing operations of activation command elements, even when the power supply switch is open.As a result, the standby current generated in the activation signal processing unit is significantly reduced compared to a case where the arithmetic unit is activated in the meantime.

A hydraulic system of a working machine includes: a hydraulic actuator; a direction switching valve; the solenoid proportional valve; a controller to control a current to be supplied to the solenoid proportional valve; an operation member for a worker to operate the hydraulic actuator; and a permission operation actuator capable of performing a switching operation between a permission operation for permitting driving of the hydraulic actuator and a non-permission operation for not permitting the driving, in which, when the permission operation actuator is subjected to the non-permission operation and a temperature of the hydraulic fluid is lower than a predetermined temperature, the controller supplies, to the solenoid proportional valve, a first standby current of a first current value defined in a range in which a switching position of the direction switching valve is not switched.

The application discloses a kind of LED lamp string's light point address allocation method and device, method includes: controller reads the initial light point address of certain light point in LED lamp string by photosensor;Controller obtains the initial light point address of other light points in LED lamp string according to the initial light point address of certain light point;Controller rewrites the initial light point address of each light point, to obtain the new light point address of all light points.The application does not need to occupy more wiring resources, and will not reduce system reliability and increase heat dissipation cost because of large standby current, save the time of reading the address of each light point, so as to shorten the time of allocating new address to light point.

The invention relates to an intelligent voice box circuit system based on integration of a low-power-consumption MCU and an AI voice chip, and the system comprises a dual-mode power management module which is integrated with an AP2301BI on-off control chip and an LR5112 charging management chip, and is used for achieving the automatic switching between a normal working mode and a low-power-consumption sleep mode and the charging and discharging management of a battery; the AI main control module comprises a GX8006A off-line voice recognition chip and is communicated with the MCU through an SPI (Serial Peripheral Interface); and the audio signal path module comprises a microphone input path with a common mode rejection circuit, an AEC echo cancellation loop integrated in the GX8006A chip, and a loudspeaker output path driven by an LM4890 audio amplifier. Through a dual-mode power management module and a deep dormancy mechanism, the standby current of the system is reduced to 0.8 mu A level and is reduced by more than 95% compared with that of a traditional scheme, and test data shows that the equipment can continuously work gt under power supply of a 1000mAh lithium battery; compared with like products, the cruising ability is improved by 30%, and all-weather standby is achieved.

The invention provides a self-biased high-precision dynamic element matching V / I converter and a V / I converter, and the circuit comprises a signal selection module which is used for obtaining clock signals and outputting digital control signals according to each clock signal, and the clock signals are periodic signals; the current source dynamic matching module comprises a plurality of to-be-matched units, and the plurality of to-be-matched units dynamically generate single-time standby current or multi-time standby current according to the digital control signal; the single standby current is also used as a bias current of the current source dynamic matching module; the V / I conversion module is used for setting a single standby current and providing a reference voltage according to the input voltage; and the V / I output module is used for converting the multi-time standby current into multi-time standby voltage and amplifying the multi-time standby current according to the reference voltage and the multi-time standby voltage so as to output V / I conversion current based on the input voltage. According to the invention, the self-calibration of the conversion precision error can be realized, and the conversion precision of the self-biased high-precision dynamic element matching V / I conversion circuit is further improved.

The invention provides a high-voltage under-voltage detection circuit, a high-voltage circuit thereof and a chip. The high-voltage under-voltage detection circuit comprises a voltage division sampling circuit, a pull-up current control circuit, a pull-down current control circuit, a voltage comparison circuit and an output circuit which are in electric signal connection. The voltage division sampling circuit is used for accessing a to-be-detected high-voltage signal, generating a sampling voltage signal under the driving of the to-be-detected high-voltage signal, and transmitting the sampling voltage signal to the pull-up current control circuit; the pull-up current control circuit is used for generating pull-up current and transmitting the pull-up current to the pull-down current control circuit under the driving of a sampling voltage signal and a preset high-voltage signal; the pull-down current control circuit is used for forming a detection voltage signal under the driving of the pull-up current and transmitting the detection voltage signal to the voltage comparison circuit; the voltage comparison circuit is used for driving the output circuit to output a high-voltage under-voltage locking signal in response to the fact that the detection voltage signal is smaller than the rated voltage signal. In the standby under-voltage detection stage of the high-voltage circuit, power consumption on the power supply voltage is avoided, and the standby current is smaller.

The invention relates to an electric or hybrid motor vehicle characterized in that the management system comprises a low drop voltage regulator to ensure standby currents and a first safety device (3) configured to ensure inrush currents or in case of failure of the DC / DC converter (4) and a second safety device (5) powered by the on-board network, said first safety device (3) being electrically connected to a part of the electrochemical cells (2), the second safety device (5) comprising a pre-charge circuit, said first safety device (3) being configured to close when the 12V network voltage is below a predetermined threshold value for a predetermined period of time, the management system comprising wake-up inputs, at least one wake-up output and a 12V output, said at least one wake-up output being configured to wake up the DC / DC converter (4).Figure 2.

The embodiment of the invention discloses a solar power supply system, and relates to a solar power supply method and system and a watch, and the method comprises the steps: obtaining electric energy through a solar material, employing a chip with a standby current of 80 [mu] A, obtaining sensor data and system state information, and carrying out the training and analysis, constructing a power consumption prediction model to obtain power consumption prediction values of each function module and the whole smart watch; periodically scanning an application program running in the background to judge whether the application program is in an unnecessary running state, and releasing CPU and memory resources for a suspended part or all processes which are unnecessary to run; adjusting the working mode and the sampling frequency of the sensor according to the motion state and the application requirement of the user; and adjusting the screen brightness and the refresh rate according to the ambient light intensity and user settings. According to the invention, intelligent analysis and prediction are carried out on each module and overall power consumption, the solar energy conversion assembly is used for collecting light energy to realize ultra-long endurance and efficient operation, and the problems of short endurance and inconvenient charging are effectively solved.

The present disclosure provides a high-voltage undervoltage detection circuit and its high-voltage circuit and chip. The high-voltage undervoltage detection circuit includes a voltage-dividing sampling circuit, a pull-up current control circuit, a pull-down current control circuit, a voltage comparison circuit and an output circuit connected with electrical signals; the voltage-dividing sampling circuit is used to access the high-voltage signal to be detected, and generate a sampling voltage signal under the drive of the high-voltage signal to be detected, and transmit the sampling voltage signal to the pull-up current control circuit; the pull-up current control circuit is used to generate a pull-up current under the drive of the sampling voltage signal and the preset high-voltage signal and transmit it to the pull-down current control circuit; the pull-down current control circuit is used to form a detection voltage signal under the drive of the pull-up current and transmit it to the voltage comparison circuit; the voltage comparison circuit is used to drive the output circuit to output a high-voltage undervoltage lockout signal in response to the detection voltage signal being less than the rated voltage signal. The present disclosure has no power consumption on the power supply voltage during the standby undervoltage detection stage of the high-voltage circuit, and the standby current is smaller.

The utility model discloses a delay power-off and power-on impact current suppression circuit, which comprises a PMOS tube Q15, an NPN tube Q10, an NPN tube Q13 and an NPN tube Q14, the source electrode of the PMOS tube Q15 is connected with a power supply end Vbat +, the drain electrode of the PMOS tube Q15 is connected with a load, a capacitor C60 is connected between the source electrode and the grid electrode of the PMOS tube Q15, the grid electrode voltage of the PMOS tube Q15 is loaded on the collector electrode of the NPN tube Q10 and the collector electrode of the NPN tube Q13, and the NPN tube Q14 is connected with the NPN tube Q13. The emitter electrode of the NPN tube Q10 is grounded, the base electrode of the NPN tube Q10 is used for accessing a DSP enable signal sent by a controller, the emitter electrode of the NPN tube Q13 is grounded, the collector electrode of the NPN tube Q14 is connected with a high potential + 3.3 V through a resistor R218, the collector electrode of the NPN tube Q14 is used for transmitting an activation detection signal to the controller, and the emitter electrode of the NPN tube Q14 is grounded. And the base electrode of the NPN tube Q13 and the base electrode of the NPN tube Q14 are used for accessing an external activation signal. The power-on impact current suppression circuit has a power-on impact current suppression function, has no standby current and can delay power-off.