16 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.

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 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.

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.

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.

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 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.

The utility model relates to generator control technical field discloses a kind of energy-saving circuit of vehicle-mounted generator control panel based on magnetic encoding, and generator is equipped with the magnetic encoder of real-time acquisition speed signal, and magnetic encoder is connected with MCU, and the enable signal output end of MCU is connected with the EN pin of power IC on control panel, and power IC is powered by the vehicle battery.The utility model is when generator stops or low-speed operation (speed < set stop speed threshold value), control panel main circuit is completely powered off, only power IC maintains microampere standby current (typical value <10 μA);In generator speed is greater than set start speed threshold value, control panel main circuit is completely started, so that the alternating current of generator output is converted into direct current by control panel and then charges vehicle battery;Using the energy-saving circuit, so that system standby power consumption reduces more than 99%, vehicle battery endurance time is extended to more than 10 times of ordinary standby scheme, completely solve the energy waste problem under non-power generation state.

The utility model discloses a handheld shaver control device based on three axis accelerometer, including three axis accelerometer, main control unit, motor drive circuit, lithium battery management circuit and cutter head contact switch, the surface of three axis accelerometer is provided with interrupt signal line INT1, interrupt signal line INT2 and I2C interface, the utility model discloses a handheld shaver control device based on three axis accelerometer, realizes the function of lifting hand wake -up through the AOI1 interrupt of SC7A20E accelerometer, realizes the function of static rest hibernate through AOI2 interrupt, and utilizes Z -axis gravity component detection determination handheld state, adopts main control unit PY32F002 and coordinates accelerometer interrupt signal and cutter head contact switch, realizes double condition starting motor control, and innovatively proposes dynamic power consumption management strategy, closes accelerometer output under hibernate state, and the whole machine standby current falls to 200 below, solves the problem of traditional shaver false touch starting and standby power consumption high, and greatly prolongs battery endurance time.

The utility model relates to the technical field of motors, and provides a servo motor with a reactor, which comprises a motor main body, a heat dissipation shell welded on one side of the motor main body, a protective shell fixedly connected on one side of the heat dissipation shell through screws, and a main circuit which is an annular circuit. A main winding, a secondary winding, a normally-closed contact thermal protector and a running capacitor are arranged in the main circuit, and through the arrangement of structures such as the normally-closed contact thermal protector, the normally-closed contact thermal protector can intelligently cut off the circuit under the conditions that the current is unstable and the internal temperature is increased, so that the running capacitor is switched off; potential damage to circuit elements caused by abnormal current fluctuation is effectively prevented, meanwhile, the electric reactor serves as a standby current path to be activated, the change range of the current is limited through the impedance characteristic of the electric reactor, it is ensured that the current is maintained at the safe and stable level, and an additional protection barrier is provided for the circuit.

Systems and integrated circuits for implementing a low-quiescent-current (LDO) regulator are described. The system may include a superfollower circuit, a current-limiting circuit, and an LDO core circuit. The superfollower circuit is configured to supply a first current. The current-limiting circuit is configured to receive a system input voltage and supply a second current. The LDO core circuit is coupled to the superfollower circuit and the current-limiting circuit. The LDO core circuit is configured to receive the first current from the superfollower circuit and the second current from the current-limiting circuit. The LDO core circuit is configured to supply and regulate a system output voltage at a system output node. The LDO core circuit may include a feedforward capacitor connected between the system output node and a feedback node.

To reduce a standby current of a semiconductor device.SOLUTION: A semiconductor device 10a includes: smoothing capacitor circuits 11a1-11aN each including a switch circuit 15 switching, depending on a first control signal, whether a power supply potential VDD2 can be applied to a power line 18, capacitive elements 16a-16d connected between the power line 18 and a power line 19 providing a power supply potential VSS, and a leakage current detection circuit 17 detecting a leakage current in the capacitive elements 16a-16d; a storage circuit 12 storing detection results of the leakage current; and a smoothing capacitor setting circuit 13 supplying, to a smoothing capacitor circuit where the leakage current has been detected among the smoothing capacitor circuits 11a1-11aN, the first control signal to stop the application of the power supply potential VDD2 to the power supply line 18 of the smoothing capacitor circuit, on the basis of the detection results stored in the storage circuit 12, in a standby state.SELECTED DRAWING: Figure 1